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Submit Paper / Call for Papers
Journal receives papers in continuous flow and we will consider articles
from a wide range of Information Technology disciplines encompassing the most
basic research to the most innovative technologies. Please submit your papers
electronically to our submission system at http://jatit.org/submit_paper.php in
an MSWord, Pdf or compatible format so that they may be evaluated for
publication in the upcoming issue. This journal uses a blinded review process;
please remember to include all your personal identifiable information in the
manuscript before submitting it for review, we will edit the necessary
information at our side. Submissions to JATIT should be full research / review
papers (properly indicated below main title).
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Journal of Theoretical and Applied Information Technology
December 2012 | Vol. 46 No.2 |
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Title: |
SOLVING ECONOMIC DISPATCH PROBLEM USING PARTICLE SWARM OPTIMIZATION BY AN
EVOLUTIONARY TECHNIQUE FOR INITIALIZING PARTICLES |
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Author: |
RASOUL RAHMANI, MOHD FAUZI OTHMAN, RUBIYAH YUSOF, MARZUKI KHALID |
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Abstract: |
One of the important optimization problems regarding power system issues is to
determine and provide an economic condition for generation units based on the
generation and transmission constraints, which is called Economic Dispatch (ED).
The nonlinearity of the present problems makes conventional mathematic methods
unable to propose a fast and robust solution, especially when the power system
contains high number of generation units. In the present paper, an evolutionary
modified Particle Swarm Optimization (PSO) is used to find fast and efficient
solutions for different power systems with different generation unit numbers.
The proposed algorithm is capable of solving the constraint ED problem,
determining the exact output power of all the generation units. In such a way,
proposed algorithm minimizes the total cost function of the generation units. To
model the fuel costs of generation units, a piecewise quadratic function is used
and B coefficient method is used to represent the transmission losses. The
acceleration coefficients are adjusted intelligently and a novel algorithm is
proposed for allocating the initial power values to the generation units. The
feasibility of the proposed PSO based algorithm is demonstrated for four power
system test cases consisting of 3, 6, 15, and 40 generation units. The obtained
results are compared to existing results based on previous PSO implementing and
Genetic Algorithm (GA). The results reveal that the proposed algorithm is
capable of reaching a higher quality solution including mathematical simplicity,
fast convergence, and robustness to cope with the non-linearities of economic
load dispatch problem. |
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Keywords: |
Economic Load Dispatch, Particle Swarm Optimization, Power system, Transmission
loss, Generation unit constraints |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0526 - 0536 Vol. 46. No. 2 -- 2012 |
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Title: |
COMPUTATIONAL INTELLIGENCE BASED TECHNIQUE IN MULTIPLE FACTS DEVICES
INSTALLATION FOR POWER SYSTEM SECURITY |
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Author: |
S.A. JUMAAT, I. MUSIRIN, M. M. OTHMAN, H. MOKLIS |
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Abstract: |
This paper presents a study on optimal location and sizing of multiple FACTS
devices based on Particle Swarm Optimization (PSO) for minimization of
transmission losses, and voltage profile improvement, which takes into account
the cost of installation. In this study, Static Var Compensator (SVC) and
Thyristor Controlled Series Compensator (TCSC) are chosen as the compensating
device for the purposes of maintaining security in power system. Simulations for
various loading conditions at several load buses have been conducted in order to
evaluate its robustness and feasibility for broad implementation. In addition,
installation of several FACTS devices into the system has been also conducted in
the attempt to evaluate their impact to the system in terms of loss reduction
and voltage profile improvement. Validation through the application on the IEEE
30-bus system indicated that PSO is feasible to achieve the task. Results from
the study are compared with those obtained from Evolutionary Programming (EP)
method in the attempt to highlight its merit. |
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Keywords: |
Flexible AC Transmission System (FACTS) device, optimal location (OL), optimal
sizing (OS), power system security (PSS), particle swarm optimization (PSO) |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0537 - 0549 Vol. 46. No. 2 -- 2012 |
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Title: |
STUDY ON SUCCESS FACTORS TO ENHANCE CUSTOMER TRUST FOR MOBILE COMMERCE IN SMALL
AND MEDIUM-SIZED TOURISM ENTERPRISES (SMTEs) – A CONCEPTUAL MODEL |
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Author: |
SALEH ALQATAN, DALBIR SINGH, KAMSURIAH AHMAD |
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Abstract: |
Even though mobile technologies and wireless communication are growing at a very
rapid phase all over the world, still the development of mobile commerce is
hindered by a lot of aspects. Researchers all over the world are actively
studying on this domain to understand the factors that affect the adoption of
M-commerce. A lot of studies have recognized that ‘trust’ is an crucial factor
that impacts the adoption of M-commerce in a lot of domains, including the Small
and Medium-sized Tourism Enterprises (SMTEs). Nevertheless it is not an easy
task to make the customers to trust M-commerce for various reasons. Hence, based
on previous studies, this paper has identified the factors that influence the
customer’s trust of M-commerce adoption in SMTEs. Based on the above statement,
this study has proposed hypothetical model for the purpose of studying trust and
its precursors such as Familiarity with M-commerce and calculation-based trust,
towards the adoption of M-commerce in SMTEs. |
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Keywords: |
Consumer Trust, Developing Countries (DC), Mobile Commerce (M-commerce), Small
And Medium-Sized Tourism Enterprises (SMTEs), Trust Model |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0550 - 0564 Vol. 46. No. 2 -- 2012 |
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Title: |
MULTI DOCUMENT SUMMARIZATION USING CLUSTERING |
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Author: |
R.C. BALABANTARAY, D. K. SAHOO, M. SWAIN, B. SAHOO |
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Abstract: |
There are two types of situations in which multi-document summarization would be
useful: (1) the user is faced with a collection of dis-similar documents and
wishes to assess the information landscape contained in the collection, or (2)
there is a collection of topically related documents, extracted from a larger
more diverse collection as the result of a query, or a topically-cohesive
cluster. In this paper we present the development of an automatic multi-
document summarizer based on clustering and sentence extraction. Based on
reference document provided by the user, similar type of documents is extracted
from a group of documents. We create an n x n similarity matrix among the entire
sentence in the similar type of documents which represent sentence level
similarity in all sentences in all extracted documents. Then we make clusters of
similar sentences using Markov clustering principle. Then in each cluster each
sentence is assigned three weights 1.chronological weight (Document level)
2.Position weight (position of sentence in document) 3. Sentence weight (Stastical
weight based on term weight). Then we extract best sentences from each cluster.
We have tested the system with document of different domain documents and the
result is satisfactory. |
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Keywords: |
Multi Document Summarizer, Markov Clustering Principle, Term Weight, Positional
Weight, Chronological Weight, Vector Space Model |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0565 - 0571 Vol. 46. No. 2 -- 2012 |
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Title: |
MICROCONTROLLER BASED WALKING ROBOT WITH MULTI-DEGREES OF FREEDOM MOVEMENT |
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Author: |
HASRUL CHE SHAMSUDIN, MOKHTAR HASHIM, ERNA NOORYANTI AZMI, ANTON SATRIA
PRABUWONO |
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Abstract: |
In designing a walking robot, a power supply issue must be considered which is
the required power to generate movement of the joint using a servomotor and the
required of a suitable algorithm to enable the robot to move. In addition, the
use of suitable devices to allow users to move the robot also should be
considered. The objectives of this study is to develop the walking robot using
minimum number of servomotor. The minimum number of servomotor allows the
walking robot to minimize the power consumption while construct a program that
can produce coordination of multi-degree of freedom for the movement of the
robot. The project also tried to use PS2 joystick to allow users to control the
robot forward or backwards and turn the robot to the left or right. The
parameters studied include determination of the minimum voltage amount required
to sustain the burden of the output which are servomotors used. Besides that,
servomotor rotation angle at each joint in order to move the robot's feet and
the use “USART” protocol to allow the microcontroller to communicate with a PS2
joystick driver circuit. It is found that four servomotors are sufficient to
produce the basic walking robot and two voltage regulators are needed to control
the load where one voltage regulator capable of supplying enough current to
drive two servomotors for each leg. |
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Keywords: |
Biped Robot, USART Protocol, Microcontroller, Servomotor |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0572 - 0578 Vol. 46. No. 2 -- 2012 |
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Title: |
DETECTION OF LEUKEMIA IN HUMAN BLOOD SAMPLE BASED ON MICROSCOPIC IMAGES: A STUDY |
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Author: |
FAUZIAH KASMIN, ANTON SATRIA PRABUWONO, AZIZI ABDULLAH |
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Abstract: |
At the moment, identification of blood disorders is through visual inspection of
microscopic images of blood cells. From the identification of blood disorders,
it can lead to classification of certain diseases related to blood. This paper
describes a preliminary study of developing a detection of leukemia types using
microscopic blood sample images. Analyzing through images is very important as
from images, diseases can be detected and diagnosed at earlier stage. From
there, further actions like controlling, monitoring and prevention of diseases
can be done. Images are used as they are cheap and do not require expensive
testing and lab equipments. The system will focus on white blood cells disease,
leukemia. The system will use features in microscopic images and examine changes
on texture, geometry, color and statistical analysis. Changes in these features
will be used as a classifier input. A literature review has been done and
Reinforcement Learning is proposed to classify types of leukemia. A little
discussion about issues involved by researchers also has been prepared. |
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Keywords: |
White Blood Cell, Microscopic Images, Leukemia, Reinforcement Learning |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0579 - 0586 Vol. 46. No. 2 -- 2012 |
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Title: |
ADVANCED PASSIVE CLUSTERING- THRESHOLD A MAINTENANCE MECHANISM OF THE CLUSTER
STRUCTURE |
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Author: |
AOUAD SIHAM, EL GANAMI DRISS |
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Abstract: |
A wireless sensor network (WSN) is a set of nodes communicating through wireless
links to observe a given phenomenon. Wireless sensor network is deployed over a
geographical area to collect information in hostile environments. The capacity
of sensors is limited by the lifetime of their batteries, so the energy is a
critical resource in this type of network. Moreover their mobility has several
problems as addressing, routing and localization .The challenge is to find
mechanisms that extend the life of the system and its robustness taking into
account the constraints of mobility and energy consumption. In this paper, we
propose a new protocol designated for mobile nodes in wireless sensor network
that is based on passive clustering. This mechanism does not use any packet
control protocol and does not require reconstruction of the cluster topology
after each leaving of CH or its energy level is below a given threshold. The
proposed protocol aims at reducing the overhead and preserving the energy. In
addition it allows balanced energy consumption by the network nodes and
maintains the cluster architecture longer than passive clustering protocol. |
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Keywords: |
Wireless Sensor Network, Passive Clustering, Active Clustering, Mobility |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0587 - 0593 Vol. 46. No. 2 -- 2012 |
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Title: |
A DEVELOPMENT MODEL FOR DOMAIN-ORIENTED INFORMATION SERVICE BASED ON CLOUD
COMPUTING INFRASTRUCTURE |
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Author: |
ZHENG HUA |
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Abstract: |
For the diversity of users demand for information services in converged network
environment, a solution was proposed with the combination of cloud computing
technology and domain engineering, in which three stages starting from the
domain engineering include service-oriented domain analysis and modeling, domain
architecture design based on cloud computing infrastructure and construction of
service-oriented domain infrastructure. It will achieve the development,
assembly and reuse of large-scale distributed information services in the domain
by fully using cloud computing technology in the advantages of integration in
the business. |
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Keywords: |
Converged Network, Cloud Computing, Domain Engineering, Information Service,
Component |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0594 - 0598 Vol. 46. No. 2 -- 2012 |
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Title: |
ELECTRIC DIFFERENTIAL WITH SVPWM DIRECT TORQUE CONTROL USING FIVE-LEG INVERTER
FOR ELECTRIC VEHICLES |
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Author: |
ZULKIFILIE IBRAHIM, NURAZLIN MOHD YAAKOP, MARIZAN SULAIMAN, JURIFA MAT LAZI,
AHMAD SHUKRI ABU HASIM, FIZATUL AINI PATAKOR |
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Abstract: |
The stability control of two separate electric vehicle (EV) motors by using only
single five-leg inverter (FLI) is the motivation of this study. This paper
proposes an electric differential (ED) in a FLI to serve dual separate induction
motor (IM) drive-based wheels of an EV traction drive system. FLI is developed
to replace the two normal three-phase voltage source inverters that need to
independently control the two separate IMs at each of the EV wheels. Stability
problem will be tackled by electric differential (ED) algorithm. The proposed
traction drive employs space vector pulse width modulation direct torque control
(SVPWM DTC) modulator with duty cycle merging algorithm as the switching
sequence of the FLI. This technique allowed any portion of DC bus voltage to be
allocated to any motor. Simulations were performed. The resulting control
performance; speed, torque, and current verified the stability and robustness of
the system. This study implies that there is possibility of using only one
inverter (FLI) in order to drive two separate IM drive-based wheels without
jeopardizes the system stability and robustness. |
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Keywords: |
Electric Vehicle (EV), Five-Leg Inverter (FLI), Electric Differential (ED), Dual
Motor |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0599 - 0609 Vol. 46. No. 2 -- 2012 |
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Title: |
MODIFIED PARTICLE SWARM OPTIMIZATION FOR OPTIMIZATION PROBLEMS |
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Author: |
ZHAO PENGJUN, LIU SANYANG, CHENG GUO |
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Abstract: |
In the paper a modified particle swarm optimization (MPSO) is proposed where
concepts from firefly algorithm (FA) are borrowed to enhance the performance of
particle swarm optimization (PSO). The modifications focus on the velocity
vectors of the PSO, which fully use beneficial information of the position of
particles and increase randomization item in the PSO. Finally, the performance
of the proposed algorithm is compared with that of the PSO-TVIW. Simulation
results demonstrate the effectiveness of the proposed algorithm. |
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Keywords: |
Particle Swarm Optimization; Firefly Algorithm; Meta-Heuristic Algorithm |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0610 - 0614 Vol. 46. No. 2 -- 2012 |
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Title: |
PROFIT-DRIVEN DYNAMIC SPECTRUM ALLOCATION IN WIRELESS NETWORKS |
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Author: |
JINMING PENG, DAQIAO HUANG, ZONGGE WANG |
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Abstract: |
This paper focuses on the building of the dynamic spectrum allocation model in
wireless networks. Considering the utilization of spectrum resources, base
stations satisfaction and combining with the Coordinated Dynamic Spectrum Access
model it proposes a profit-driven dynamic spectrum allocation model and uses the
genetic algorithm to get an approximate optimal solution |
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Keywords: |
Wireless Networks; Collaborative Access Model; Spectrum Allocation; Genetic
Algorithm |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0615 - 0618 Vol. 46. No. 2 -- 2012 |
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Title: |
MULTI-BEAM ANTENNA-BASED TOPOLOGY CONTROL ALGORITHM IN AD HOC NETWORKS |
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Author: |
NING YE, QIAN SUN, HAILONG WANG, GENG YU |
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Abstract: |
Multi-beam antenna is drawing attention due to its power-saving and
interference-reducing. A topology control algorithm K-DRNG based on multi-beam
antenna in heterogeneous wireless Ad Hoc network is proposed. The algorithm is
mainly composed of three phases. In the stage of information collection, each
node collects information of neighborhood by adjusting the transmitting power
and controlling sector conversion. In the stage of topology construction, each
node constructs directed relative neighborhood graph according to link weighs.
In the stage of topology optimization, each node constructs subgragh of initial
topology and adds or deletes directional links with neighborhood to guarantee
bi-directional connectivity of topology. The simulation results show the
proposed algorithm can reduce the average energy consumption of nodes, increase
the spatial reuse of radio resource, thus improve integral network performance. |
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Keywords: |
Ad Hoc Networks; Topology Control; Multi-Beam Antenna; Heterogeneous; NS2 |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0619 - 0622 Vol. 46. No. 2 -- 2012 |
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Title: |
COMPUTATIONAL VISUAL METHOD OF WHEAT TEMPERATURE IN WHEAT BARN |
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Author: |
HAN CHEN, XING-PEI LIANG, HUA HUO |
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Abstract: |
In the paper, the three-dimensional numerical model and the data interface
between database and calculating program are established for the prediction of
wheat temperature variation during the practical grain storage. Due to the
temperature-dependence of thermal properties of wheat, the nonlinear transient
finite element simulation of the wheat temperature field is carried out. The
numerical results are compared with the measured results to verify the proposed
numerical model, and it’s found that there is a good agreement between them. So,
it can be said that the temperature variation for the practical wheat storage
can be observed and analyzed in the visual type, instead of time and
money-consuming experiment, if the numerical method developed in this paper can
be put into practice. Furthermore, the present method of monitoring grain
temperature only based on the data analysis can be further improved to the
visual level. |
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Keywords: |
Grain storage, Visual method, Numerical simulation, Finite element |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0623 - 0627 Vol. 46. No. 2 -- 2012 |
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Title: |
RESEARCH ON NON-INVASIVE EYE TRACKING USING CORNEAL REFLEX |
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Author: |
DI GAO , GUISHENG YIN, WEIJIE CHENG |
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Abstract: |
As the existed eye tracking devices are so complex that the restrictions on the
position are too many and people have to wear special equipment, this paper
introduces a novel method against eye tracking: using the five near-infrared
light as the source of corneal reflex. With the help of our method, people won’t
need any equipment against eye tracking. Our method is able to adapt to the
natural head movement and calculate the position of sight more accurately. In
order to improve the mapping accuracy, a new method for pupil edge fitting is
proposed to fit circularly and remove false points. In our paper the grayscale
of images is used to initialize eye position quickly and accurately. Besides, we
introduce the theory of cross-ratio invariance to make coordinate mapping and
calculate the attention coordinate accurately. |
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Keywords: |
Eye Tracking; Corneal Reflex; Pupil Edge Fitting; Cross-Ratio |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0628 - 0631 Vol. 46. No. 2 -- 2012 |
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Title: |
MANUFACTURING RESOURCES CLASSIFICATION BASED ON FUZZY CLUSTERING ALGORITHM |
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Author: |
XUESONG GUAN, GUANGWEI MENG, CHANGLONG ZHAO |
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Abstract: |
Today, for many companies, there are large numbers of manufacturing equipments.
To better utilize manufacturing resources, it is necessary to classify the
equipments into a few groups. In this paper, the hybrid algorithm of fuzzy
clustering algorithm (FCM) and genetic algorithm (GA) is implemented to group
manufacturing resources. An application sample is developed and its results are
analyzed. The grouping result shows that the hybrid algorithm is reliable and
effective. |
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Keywords: |
Fuzzy C-Means Clustering; Genetic Algorithm; Manufacturing Resources
Classification |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0632 - 0637 Vol. 46. No. 2 -- 2012 |
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Title: |
RESEARCH ON PERFORMANCE OPTIMIZATION OF OLTP SYSTEMS BASED ON INNODB |
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Author: |
XIANGSHENG KONG |
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Abstract: |
The technology of flash memory SSDs (solid state drives) which are increasingly
adopted in a wide spectrum of storage systems has the potential of changing the
database architecture and principles. With the high random access speed and high
IOPS of the SSD, this paper describes a secondary buffer pool & read-ahead
solution based on OLTP for MySQL InnoDB which can reduce I/O requests & latency
and improve flash-based database system performance a lot. Based on the buffer
pool & read-ahead solution, this paper provide an experience on running online
transaction processing workloads (TPCC) which show that the database performance
will achieve up to 120%-320% improvements. |
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Keywords: |
SSD, RAID WRITE BACK MODE, BUFFER POOL & READ-AHEAD, TPC-C, Sysbench |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0638 - 0642 Vol. 46. No. 2 -- 2012 |
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Title: |
RESEARCH OF BEIJING AGRICULTURE INFORMATION SERVICE PLATFORM BASED ON SOA
ARCHITECTURE |
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Author: |
JIANYU SHEN, QIAN ZHANG, FENG YU, XIN LIU, YANG PING, RUPENG LUAN |
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Abstract: |
Beijing agricultural comprehensive information service plays an important role
in agricultural resources using and rapid development of the rural economy.
Combined with the Web Service and its extension technology, Beijing agricultural
information service platform was built with the base of SOA (Service Oriented
Architecture) framework. The platform enables efficient management and using of
agricultural resources data, achieves scientific analysis and decision support.
The platform with a full open architecture, which made it be able to accept
different levels, different applications of the business into the platform
system through the services. |
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Keywords: |
SOA, Information Service, Agriculture Informatization, Web Services |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0643 - 0647 Vol. 46. No. 2 -- 2012 |
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Title: |
AN AUTOMATIC TESTING FRAMEWORK APPLIED ON LIW AND IMPLEMENTATION |
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Author: |
JIE YIN, DAN YU, SHILONG MA |
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Abstract: |
Software is an important component of Large Information Weapon (LIW). We propose
a data-driven distributed automatic testing framework, which is based on the
analysis of LIW testing requirements, and it supports the whole process of
distributed software test. The main components of the framework consist of
distributed test designing environment, execution and control environment and
test results show environ-ment. We present a set of GUI scripting language
specification for automatic testing, the script language with object-oriented
features. Unlike the previous GUI automatic testing scripting language, this
specification records the information of the node where the test cases will be
running. As an application of the framework, we develop an automatic testing
system (DMATS). DMATS has been put into practices in XXX-business electronic
system, and it is proved the feasibility of the framework. |
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Keywords: |
Automatic Testing; Large Information Weapons; Test Language |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0648 - 0653 Vol. 46. No. 2 -- 2012 |
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Title: |
A ROBOT PATH PLANNING SCHEME BASED ON NEURAL NETWORK |
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Author: |
LEI GAO, SHULIN PAN, JIAO SHEN |
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Abstract: |
A method of Robot path planning based neural network has been raised in order to
guarantee that the robot can simultaneously avoid movable obstacle intelligently
when it is reaching the destination. In the first instance, every robot will be
divided into spheres of influence, and the influence map will be worked out at
the same time. Then neural network is used to select the path. In view of the
problems of neural network(such as local-optimization and poor convergence,
etc.),genetic algorithm is added to optimize neural network to help finding the
best path . This technology can be widely used in many fields such as the
navigation and computer games. Especially, it can be used in games of robot path
planning and will get ideal results. |
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Keywords: |
Genetic Algorithm, Neural Network, Path Planning, Influence Map |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0654 - 0658 Vol. 46. No. 2 -- 2012 |
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Title: |
A METHOD OF AGRICULTURAL AREAS SAR DATA SEGMENTATION BASED ON UNSUPERVISED FULL-POLARIMETRIC |
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Author: |
HONGFU WANG, XIAORONG XUE |
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Abstract: |
Classification is achieved by Markov random field filtering on the original
data. The result is a series of segmented maps, which differ in the number of
(unsupervised) classes. For a (compatible) supervised approach, only the first
and last step have to be applied. Results are discussed for the agricultural
areas Flevoland in The Netherlands (AirSAR data)and DEMMIN in Germany, using the
NASA/JPL AirSAR system and the DLR ESAR system, respectively. The applications
include the use of groundtruth for legend development, the check for ground
truth completeness, and the construction of a bottom-up hierarchy of the
characteristics that can be distinguished in the radar data. The latter gives
important insights in physics of polarimetric radar backscattering mechanisms. |
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Keywords: |
Unsupervised Classification, Agricultures, Data Segmentation, Full Polarimetric |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0659 - 0664 Vol. 46. No. 2 -- 2012 |
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Title: |
AN EXTENDED STIPPLE LINE ALGORITHM AND ITS CONVERGENCE ANALYSIS |
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Author: |
ZHANDONG LIU, HAIJUN ZHANG, YONG LI, XIANGWEI QI, MUNINA YUSUFU |
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Abstract: |
Not only does the stipple line algorithm of previous have characteristics of a
single type, but also the phenomenon, that the position of calculated pixel
deviates from the actual line, appears easily when we solve practical problems.
This paper introduces the previous stipple line algorithm. The other conditions
of the stipple line algorithm are analyzed in detail. Last, the convergence of
the stipple line algorithm is proved. The result shows that the vertical
coordinate’s location, which the next pixel point of the current pixel point,
converges weakly to the ideal line. |
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Keywords: |
Stipple Line Algorithm, Algorithm's Application, Convergence Analysis |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0665 - 0671 Vol. 46. No. 2 -- 2012 |
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Title: |
A METHOD FOR SOLVING THE SHORTEST PATH ON CURVED SURFACE BASED ON PSO-SA
ALGORITHM |
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Author: |
SHIGANG WANG, FENGJUAN WANG, XIANFENG DU |
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Abstract: |
Through the method of analyzing the intrinsic relationship of the nodal point
series of the path on curved surface, circle arc approach method is put forward
corresponding to the shortest path to solve the curved surface problem by local
tuning. Particle swarm optimization has made faster development due to its easy
understanding and implement. Particle swarm algorithm has strong local search
ability and can make the search process avoid falling into local optimal
solution. Therefore, simulated annealing particle swarm algorithm is introduced
in the path optimization in this paper. Random search algorithm is put forward
to calculate the shortest path on curved surface and then the parameter space is
processed. In the end of this paper, there will be an numerical simulation
example being presented. |
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Keywords: |
Particle Swarm Algorithm, Simulated Annealing, Arc Approach
Method, Iterative Search, Shortest Path on Curved Surface Problem. |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0672 - 0676 Vol. 46. No. 2 -- 2012 |
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Text |
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Title: |
MOBILE ROBOT-BASED VIRTUAL V-BLAST MIMO TRANSMISSION SCHEME IN DISTRIBUTED
WIRELESS SENSOR NETWORKS |
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Author: |
WENBAI CHEN, WEI LI , XIAOPIN ZHANG |
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Abstract: |
Aiming at the requirements of high-speed data transmission and low energy
consumption in energy constrained Wireless Sensor Networks (WSNs), a mobile
robot-based virtual V-BLAST cooperative MIMO transmission scheme and an
efficient approximate maximum likelihood (ML) detection algorithm are proposed
in this paper. Mobility of robot can reduce the communication distance between
the sensor nodes, MIMO-based WSNs can use its diversity gain to overcome fading
effects and can also use its multiplexing gain to increase the data transmission
rate. As for the detection algorithm in mobile robot-based virtual V-BLAST
transmission scheme, combined with traditional decoding OSIC algorithm, the
vectors needed to be detected in approximate ML algorithm are reduced. Mobile
robot can receive with its own multi-antenna or using collaborative nodes
around, and the energy efficiency analysis of the two cases are all discussed.
Simulation results show that the proposed scheme effectively reduces network
energy consumption, and the efficient approximate ML detection algorithm further
improves energy-efficiency. |
|
Keywords: |
Wireless Sensor Networks(WSNs), Mobile Robot(MR),
Multiple-input multiple-output antenna technology(MIMO), Vertical-bell layered
space time Architecture (V-BLAST), Maximum Likelihood detection(MLD) |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0677 - 0685 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
A CA MODEL OF CULTURE INFORMATION DISSEMINATION IN THE NETWORK ERA AND THE
SIMULATION OF ITS DYNAMIC CHARACTER |
|
Author: |
KUN LI, ZHILONG JIA, YONGSHENG QIAN, JUNWEI ZENG, MIN WANG， JUN ZHOU |
|
Abstract: |
Through analyzing the characteristics of the culture information dissemination
of the network era, the complex network theory is used to study it deeply. It
shows that the process of network information dissemination has typical network
topology structure. The kind of network structure has both small world and
scale-free features, and the self-organization characteristic. On the basis of
the features and main influence factors of the network information
dissemination, a two-dimensional cellular automata (CA) model is presented to
simulate the evolutionary process and dynamics characteristics of the network
information dissemination in different conditions. The result shows that the
value of the information is the key point that affects the dissemination speed
and efficiency. If the value of a key node degree is relatively higher, the role
it plays will be more important. The existence of key node is an important
reason that the information could spread quickly in network era. The information
dissemination in the network has latent and hysteresis quality. |
|
Keywords: |
Culture Information Dissemination, Complex Network, Cellular Automata, Dynamics,
Evolving Model |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0686 - 0694 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
ANALYSIS OF STRATEGIC EMERGING INDUSTRIAL TECHNOLOGY INNOVATION INFLUENCE FROM
R&D, MARKET SYSTEM AND GOVERNMENT POLICY |
|
Author: |
LIPING FU, XIAOJING LI, YONGJUN HE |
|
Abstract: |
Technology innovation is the key motivation to push strategic emerging industry
development. Research on key factors to influence industrial technological
innovation is essential to enhance strategic emerging industrial technology
innovation. This paper analyzes the various factors that influence industrial
technology innovation by the fixed effects variable coefficient model. Through
the expanding knowledge production function, considering the endogenous
variables (R&D, market system) and exogenous variables (government policies) on
the technology innovation of comprehensive effect, the model operates panel data
in 10 industries from China's three great strategic emerging industries from
1996 to 2010. The results show that R&D input has a positive effect on various
industries, the market system and the government policy has complementary effect
on various industries influence, and various factors contribution on the
biological industry and high-end equipment manufacturing technology innovation
is superior in the information technology industry. |
|
Keywords: |
Strategic Emerging Industry, Technology Innovation, Fixed Effect Variable
Coefficient Model |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0695 - 0705 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
R&D EFFICIENCY EVALUATION OF COMPUTER INDUSTRY IN CHINA BASED ON AN IMPROVED DEA
MODEL |
|
Author: |
CHENGDONG WANG, LIANGQUN QI, YUANYUAN CAI |
|
Abstract: |
The computer industry plays an important role in promoting the development of
national economy and national comprehensive power of China. As an important
evaluation indicator, the R&D efficiency of computer industry becomes one of the
most important research fields currently. According to the shortages of
traditional C2R model of DEA, this paper constructs an improved DEA model for
measuring the R&D efficiency of computer industry and does an empirical research
on R&D efficiency of computer industry in different regions. This research shows
that: the improved DEA model overcomes the shortages of traditional C2R model
and it is able to reflect the difference of R&D efficiency between different
regions more effectively; Compared with efficiency frontier, the R&D efficiency
of Chinese computer industry has potentials to improve; The R&D efficiency of
Chinese computer industry is influenced by various factors, such as government
support capacity, market structure and enterprise scale; Improve the environment
of R&D activities is more effectively than increase the input of R&D resources
in improving the R&D efficiency of Chinese computer industry. |
|
Keywords: |
Computer Industry, Evaluation of R&D Efficiency, Improved DEA Model, Influence
Factor |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0706 - 0712 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
AN IMPROVED SELF-LEARNING MODEL BASED SOCIAL RELATIONSHIP EXTRACTION |
|
Author: |
CHONGWEN WANG, TONG SHEN, YI HUANG |
|
Abstract: |
How to extract social relations from the text content in internet is a problem.
A supervised method based on machine learning algorithm has been used to solve
the problem. Based on the characteristics of social relationship, the
appropriate rules have been made for feature extraction. Based on the result of
feature extraction, two methods have been proposed which are support vector
machine (SVM) and the maximum entropy model for the relation extraction
experiment. The results show that support vector machine algorithm is better
than the maximum entropy model. |
|
Keywords: |
Social Relation, Relation Extraction, Support Vector Machine, Maxent Model,
Machine Learning |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0713 - 0718 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
APPLICATION OF CLONAL SELECTION ALGORITHM ON IGNITION ADVANCED ANGLE OF
HYDROGEN-FUELED ENGINE |
|
Author: |
LIJUN WANG, DONGFEI WANG |
|
Abstract: |
Clonal selection was a natural choice mode of immune system, in which the
antibody with high affinity for antigen was promoted and the antibody with low
affinity was restrained under the action of clonal selection mechanism. And
Clonal Selection Algorithm (CSA) as one kind of searching methods adopted group
search strategy, exchanged information between antibodies and achieved global
optimal solution search by simulating the high variation and cloning
characteristics of B lymphocyte. A simulation model of the best ignition
advanced angle of hydrogen-fueled engine based on CSA was constructed. The
advantages of CSA and the features of BP neural network were all adopted in this
model. The simulation results show that this new model predicts the best
ignition advanced angle of hydrogen-fueled engine quickly and accurately. What’s
the important is that it overcomes BP neural network’s shortcomings of slow
convergence speed and easily running into the local minimum value. |
|
Keywords: |
Clonal Selection Algorithm, BP Neural Network, Ignition Advanced Angle,
Hydrogen-Fueled Engine |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0719 - 0724 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
AN IMAGE DENOISING SCHEME FOR BASKETBALL VIDEO IMAGE |
|
Author: |
HONGQIANG LI |
|
Abstract: |
In recent years, the wavelet-based image denoising techniques mainly focus on
the case that uses a single wavelet base. In fact, different wavelet bases can
often effectively represents different areas or features of an image. In this
paper a new image denoising method using multiple wavelet bases is proposed.
First, the noisy image is denoised by various wavelet bases and then a set of
the denoised images are obtained. Next, the local character is computed in time
domain of every denoised image. The variance, the mean and the gradient are
selected to explain the local character of the denoised images. When the
character is bigger, the recovery effect of the image is better, the pixel is
picked up as a clear pixel to the final denoised image. Third, these multiple
denoised images are fused into a final denoised image based on the local
character. Experiments show that the simple fusion improves the visual quality
of the recovery image |
|
Keywords: |
Image Denoising, Bayes Thresholding, Local Character, Multiple Wavelet |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0725 - 0729 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
CHAOS OF LOGISTIC MAPS IN COUPLED NETWORKS |
|
Author: |
XUELIAN SUN, LIJIE XIN, XUEFENG SUN, LIDONG WANG, MAN LIU |
|
Abstract: |
The emergence of chaos in complex dynamical networks is a commonly concerned
issue. In this paper, we suppose that the networks consist of nodes which are in
the non-chaotic and unattached state at first, then making them contact each
other by choosing a suitable coupling strength. We found that the nodes and the
degrees of each node in the network are greater, the value of coupling strength
is smaller when the system transit from non-chaotic to chaotic. Our simulation
result on Star-network with different nodes and adjacent network with 100 nodes
of Logistic maps. |
|
Keywords: |
Chaos, Coupling Strength, Dynamical Networks, Logistic Map |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0730 - 0734 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
HARMONY SEARCH ALGORITHM FOR OPTIMAL DESIGN OF WATER SUPPLY NETWORKS |
|
Author: |
LI YANG, JINXUE SUI, ZHEN HUA |
|
Abstract: |
Optimization design of water supply pipe network is important with the
development of economy and the increasingly fast urbanization process. Harmony
search algorithm for the optimal design of water supply networks provides a
better nonlinear optimization method. The improved strategy of the dynamic
harmony memory size is proposed, through the optimization computation to water
supply pipe network, compared with other algorithms, the improved HS algorithm
in network optimization design problem has its superiority, its high speed, high
efficiency, good convergence, can guarantee the stability of the global search
optimization, and can provide the optimal design scheme. |
|
Keywords: |
Water Supply Networks, Harmony Search, Optimization Design, Dynamic Adaptive |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0735 - 0741 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
EMULATION ANALYSIS OF TARGET DAMAGE MODELS BASED ON POISSON DISTRIBUTION |
|
Author: |
ZHIYONG LEI , NINGBO XIAO, HANSHAN LI |
|
Abstract: |
In order to study the damage efficiency of the fragment for the target, puts
forward to adopt Poisson probability distribution function analysis fragment
group distribution rule; According to the target features and Poisson
probability, using the target center to establish damage vulnerable area of the
mathematical model; Through the flinders damage each tank section full
probability and mutual independence hypothesis, research and analysis the target
damage coordinate law, estimated the average number of fragments hit the target;
According to the related parameters of fragment dispersion area and target
intersection, calculating the target damage probability. According to the design
model, and gives out the fragment of target damage probability distribution of
simulation results. |
|
Keywords: |
Poisson Distribution, Fragments Field, Target Vulnerability, Damage Model |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0742 - 0746 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
ANALYSIS INFLUENCE FACTORS ON LINEAR CCD’S INTERNAL PARAMETER CALIBRATION |
|
Author: |
ZHIYONG LEI, ZHENXING ZHU, ZEMIN WANG |
|
Abstract: |
In order to improve the measurement accuracy of the linear CCD in the
intersection of vertical target measurement system, the calibration model of
linear CCD’s internal parameters is established and the various factors that
affect the accuracy in the calibration process are analyzed. Making use of the
linear CCD imaging optical principle, the optical center and the effective focal
length are calibrated by using upright and inverted mirror state theory and
N-style array streak model respectively. It can be proved through theoretical
analysis and argument that the method can effectively reduce the impact of the
factors as real object height to calibration accuracy and obtain the high
precision calibration results which are satisfied the application indicators of
linear CCD in the intersection of vertical target measurement system. It can be
known from the experimental data that the optical canter calibration accuracy is
less than 0.29 pixels and the focal length is less than 2.5‰. |
|
Keywords: |
Linear CCD, Influence Factors, Calibration, Upright and Inverted Mirror State,
N-style Array Steak Model |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0747 - 0753 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
CAUSAL RELATION BETWEEN MACRO ECONOMY AND INDUSTRIAL INDEX BASED ON REGRESSION
ANALYSIS |
|
Author: |
HUA LI, ZHU WEN, |
|
Abstract: |
With the expansion of stock market, investors and capital are increasing step by
step, which makes the stock market an increasing impact on the macro-economy. In
order to reveal the effect of macro factors on the specified industry’s stock
price, a new nonlinear regression model is established with Eviews6.0 software
in the paper. We take macro variables as samples which are based on interest
rate adjusting (China has adjusted interest for 24 times from 1997 to June 8th,
2012), conducting an in-depth study of the industrial index on the Stock
Exchange. The empirical result indicates that the industrial index has a
negative correlation with interest rate, PPI, and a positive relation with CPI,
industrial value added (IVA) growth rate and international crude oil price. |
|
Keywords: |
Industrial Index, Macro Economic Variables, Regression Analysis |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0754 - 0760 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
TEST ON THE ROLES OF SINO-US INFLATION LEVELS TO THE OTHER IN THEIR PREDICTIONS |
|
Author: |
QIZHI HE, HONGLING CHEN, TING YAO |
|
Abstract: |
The paper researches on the inflation level forecasting for China and the United
States in one kind of univariate and three kinds of bivariate cases, using
Vector Autoregressive and Bayesian Vector Autoregressive Models, based on the
rolling-sample forecasts and the mean absolute percentage error standard.
Empirical tests show that, both China and the United States’ inflation level
series are stationary; China and the United States’ inflation level are both
able to provide additional information besides itself to the other in the
inflation level forecasting, but the effects of the United States’ inflation
level to China’s inflation level is greater than that of China’s inflation level
to the United States’ inflation level; In addition, the influence of the United
States’ inflation level to China's inflation level maybe is mainly through the
expectation gotten by its past values. Finally, some suggestions are given. |
|
Keywords: |
Inflation Level, Rolling-Sample Forecasts, Mean Absolute Percentage Error,
Vector Autoregression, Bayesian Vector Autoregression |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0761 - 0765 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
A SIMULATION ARCHITECTURE DESCRIPTION LANGUAGE FOR HARDWARE-IN-LOOP SIMULATION
OF SAFETY CRITICAL SYSTEMS |
|
Author: |
YUJUN ZHU, ZHONGWEI XU, MENG MEI |
|
Abstract: |
The architecture is a key aspect of the design of any system including
simulation systems. An architecture description should provide a formal
specification of the architecture in terms of components and connectors and how
they are composed together. Further, a simulation architecture description for
safety critical system must provide a specification of how the architecture can
satisfy safety and execution characteristics. This paper introduces the
simulation architecture description language for hardware-in-loop simulation of
safety critical systems (SCS-SADL) to support the real-time simulation of safety
critical systems. SCS-SADL is a graphical language with constructs and semantics
defined to provide the user with the capability to define the simulation at
various levels. A supporting toolset is proposed and provided the interface to
SCS-SADL for the design simulation description. With a case study, SCS-SADL is
illustrated its ability to represent the simulation of safety critical systems. |
|
Keywords: |
Multicast Architecture Description Language, Safety Critical System,
Hardware-in-loop Simulation, Software Architecture |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0766 - 0771 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
APPLICATION OF UNCERTAIN NONLINEAR SYSTEMS PARTIAL STATE VARIABLES CONTROL TO A
CLASS OF PENDULUM SYSTEMS |
|
Author: |
YANJUN LIANG, GUOYING LIU |
|
Abstract: |
Because of inaccuracy of modeling and parameters measurement, the controlled
systems are subjected by the inaccuracy inevitably and the control of uncertain
systems is studied by many researchers. Uncertain nonlinear systems partial
state variables control technique is developed, and applied to single pendulum
systems. In order to make a certain state variable asymptotically stable and
adaptive parameters identify the uncertain parameters, using partial state
stability theory and adaptive control method, two controllers and adaptive
regulators are designed separately for two state variables and uncertain
parameters. Our controllers can guarantee the uniformly ultimate boundedness of
the solution of the closed-loop system, and make the tracking error arbitrarily
small for uncertain parameters. Numerical simulation results illustrate the
effectiveness of the proposed controllers and adaptive regulators. |
|
Keywords: |
Nonlinear Systems, Partial State Variables Control, Uncertain Systems |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0772 - 0776 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
A DYNAMIC CUSTOMIZABLE ARCHITECTURE FOR SAAS BASED PLATFORM |
|
Author: |
WEIZHI LIAO, LINFU SUN |
|
Abstract: |
The characteristics of multi associations business coordination among the
enterprises in industry chain is firstly analyzed, and the demand of
customizable business of SaaS(Software as a service) based platform supporting
the industry chain coordination (in brief, PLATFORM) is intensively analyzed.
Based on these, customizable business-oriented PLATFORM architecture based on
SOA is designed in the paper, which takes support layer as the foundation, takes
bus layer and service layer as the core and takes customizable application layer
as the target. Based on the architecture, application layer can provide simple,
convenient, rapid support for SaaS based business customization and system
applications, based on the rules of dynamic union building, business functions
configuration and personalized functions configuration. Application results show
that the customizable business-oriented architecture of PLATFORM proposed in the
paper can well satisfied a variety of requirements for customizable business due
to the business characteristic includes variability, dynamic and multiplicity
from different alliance enterprise in the PLATFORM. |
|
Keywords: |
Industry Chain, Business Coordination, SaaS Based Platform, Customizable
Business, Architecture |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0777 - 0784 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
AN EMPIRICAL MATHEMATIC MODEL OF DRUMS CUTTING TORQUE |
|
Author: |
KUI-DONG GAO, CHANG-LONG DU, SONG-YONG LIU |
|
Abstract: |
The cutting experiments with different drums (seven types of drums) and picks
(eight types of picks) were done, which to acquire the empirical mathematic
model of the cutting torque of the shearer drum. According to the existed
research results, the structure of the empirical mathematic model of the cutting
torque was formed, and regression analysis of the test date was performed to get
the suitable date for empirical mathematic model solution by using BP neural
network. Based on this, the unknown coefficients of the model were solved, and
the empirical mathematic model was acquired, too. To verify the reliability of
the empirical mathematic model, the five different experiments were done. The
research results indicated that the error of the built empirical mathematic
model was smaller than 10%, which satisfied the needs of engineer design. |
|
Keywords: |
Shearer Drum, Cutting Torque, BP Neural Network, Empirical Mathematic Model
Building |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0785 - 0789 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
STATISTIC ANALYSIS ON RELEVANCY OF SCREENING FACTORS IN DOWN’S SYNDROME |
|
Author: |
XIAOQING LU, LIHUA LIU |
|
Abstract: |
The aim of this paper is to analyze the impacts of the pregnant women’s ages and
the gestational weeks on the serological prenatal screening in Down’s syndrome,
and then explore and identify the best range of the ages of the pregnant women
and the gestational weeks. During 2009 to 2011, there are 3162 pregnant women
who had accepted to receive the screening of Down’s syndrome, giving the birth
in the hospital and being interviewed in Tangshan. During the week fifteenth to
the week twenty-first, examine the typical factors of maternal serum, AFP and β-HCG,
through the risk evaluation software of Down’s syndrome. For the high risk case,
the amnionic paracentesis is required for diagnosis. Compare the high risk rate
of Down’s syndrome between the different groups in different ages. The results
of the high risk rate of Down’s syndrome got from the different gestational
weeks and the false rate of the screening are also needed to be examined. The
obtained results can help to improve the accurate rate of the diagnosis,
meanwhile reducing the rate of misdiagnosis. |
|
Keywords: |
Down’s Syndrome, Prenatal Screening, Serological Screening, Statistic Analysis
of Affecting Factors |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0790 - 0793 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
TRACKING CONTROL FOR WHEELED MOBILE ROBOTS USING NEURAL NETWORK MODEL ALGORITHM
CONTROL |
|
Author: |
YUANLIANG ZHANG |
|
Abstract: |
This paper proposed a neural network model algorithm control (NNMAC) method for
the path tracking control of differentially steered wheeled mobile robots (WMRs)
subject to nonholonomic constraints. The model algorithm control (MAC) is a
one-step-ahead predictive controller, in which the control law is obtained by
minimizing the output error. The MAC method needs the well known model of the
controlled system to design the controller. But sometimes it is difficult to get
the accurate model of the controlled system or the model of the controlled
system is not good because of the inside and outside disturbances and unknown
parameters. Neural network has the ability to estimate the nonlinear system’s
model and its corresponding inverse model. In this paper the NNMAC method which
combines two neural networks and MAC method is proposed to do the path tracking
control of a wheeled mobile robot. Some simulations are conducted to show the
performance and feasibility of the proposed control strategy. In these
simulations the WMR is controlled to track two difference reference paths such
as the circular shape path and the “8” shape path. |
|
Keywords: |
Neural Network, Model Algorithm Control, Mobile Robot |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0794 - 0799 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
A KNOWLEDGE EXPRESSION METHOD OF SCADA NETWORK ATTACK AND DEFENCE BASED ON
FACTOR STATE SPACE |
|
Author: |
LI YANG, XIEDONG CAO, XINYU GEN, JUN ZHANG |
|
Abstract: |
To solve the problem of knowledge expression in SCADA network attack and defence
system, a new knowledge expression method of SCADA network attack and defence
based on factor state space is presented. Combined with factor space definition
and the formal description of factor state space expression and analyzing attack
factors, skill and attack aim, analysis and expression method of network attack
and defense factors is developed. On the basis of analysis and expression of
network attack and defense factors, equivalence class partition formal
description is presented. For illustration, an attack simulation experiment is
utilized to show the feasibility of the proposed method in solving network
attack and defence knowledge expression. By introducing factor space canes,
objects class can be represented. Empirical results show that our proposed
method can effectively improve accuracy of attack classification. Knowledge
expression method based on factor state space can effectively solve complexity
of knowledge expression in network attack and defence system and provides a new
method for solving similar application. |
|
Keywords: |
Factor; Knowledge Expression, Network Attack, Factor State Space, Factor Space
Canes |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0800 - 0805 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
A MATCHING SCHEMA FOR SEMANTIC WEB SERVICE |
|
Author: |
CHUANGLU ZHU |
|
Abstract: |
Finding out useful Web service from the huge number of service is the target of
Web service discovery. Matching algorithm of service are the main technologies
to achieve Web service discovery. This dissertation studies how to effectively
utilize the semantic information in domain ontology to enhance accuracy of Web
service matching, and describes a variety of services matching algorithm in the
semantic Web service discovery. By introducing the existing matching algorithm,
analyzes the problems of the algorithm. To increase the accuracy of algorithm
based on semantic distance, introduce the quantity of information which is
defined combining the concept of level matching. Describes a service discovery
model based on semantic method and verify the effectiveness of the proposed
algorithm based on the comprehensive model through comparison with the existing
framework of service discovery. |
|
Keywords: |
Semantic Web, Ontology, Semantic Similarity, Semantic Distance, Semantic
Information Content |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0806 - 0811 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
ZINC COATING THICKNESS QUALITY CONTROL OF ANGLE STEEL TOWER MATERIALS BASED ON
STATISTICAL METHOD |
|
Author: |
JITAO FANG, HUI WANG, WEIWEI DENG |
|
Abstract: |
As an important quality index of high voltage electricity transmission tower,
zinc coating thickness detection and quality control is more and more attention
in recent years. The coating thickness and uniformity of tower materials
provided by the suppliers are tested through the traditional method by the power
department, the detection precision of this method is low efficiency and
analysis results is not returned objectively to help superior evaluation. In
this paper, zinc coating thickness detection and quality control system of tower
materials based on statistical method are developed, through coating thickness
and uniformity tested, the test results are returned to the competent department
timely, the analysis of test data is completed automatically by this system.
Therefore the zinc coating quality of the tower materials caused safety issues
is avoided effectively and contributed to superior evaluation reasonably. |
|
Keywords: |
Angle Steel Tower Material, Zinc Coating Thickness Detection,
Quality Control, Statistical Method, Supplier Evaluation |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0812 - 0818 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
MOBILE SHOPPING MALL NAVIGATOR |
|
Author: |
RIZIK M. H. AL-SAYYED, DIMA MAHMOUD SULEIMAN, DANA FAYEZ MARZOUQ, RANA HASSAN
AL-RIFAI , REEM SHUKRI AL-SHWEIKI |
|
Abstract: |
Big shopping malls usually provide a directory to their available shops, but
these directories are most of the time static and do not provide any
interactivity features to the visitors. In this work, we present a mobile
shopping mall navigator. The main reason behind our conceptual idea of our
proposed project is because we feel that when visitors often change their plan
to go to other shops instead of the ones in their minds, it can be full of
effort especially considering the crowded levels and location of the navigation
material. The application developed is practical and feasible; it is developed
using Microsoft Visual Studio 2008, Microsoft SQL Server, and Microsoft Visual
Studio 2008 mobile Application (http://www.microsoft.com). Pocket PC and Smart
Phones are utilized for the front end and information retrieval purposes. This
application runs with Bluetooth in shopping malls wherever the connection is
available. This helps and assists our living tremendously by increasing the
mobility to locate a particular shop or set of items while shopping or to
subscribe to offers by SMS. |
|
Keywords: |
Shopping, Mobile, Mobile Shopping Mall Navigator (MSMN), Access Point, Pocket
PC, Smart Phones |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0819 - 0829 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
A SUSTAINABLE DEVELOPMENT EVALUATION MODEL OF REAL ESTATE BASED ON FUZZY PATTERN
RECOGNITION |
|
Author: |
DAN LIU |
|
Abstract: |
On the basis of documents analysis, this article constructed the sustainable
development evaluation model of real estate market from four aspects, including
the harmonious development with local economy, reasonable prices, structural
balance and financial coordination. Then we empirical studied the healthy
development of Nanchang real estate market based on fuzzy pattern recognition
model. The results showed the Nanchang real estate market is healthy from 2008
to 2010. Finally, This article presented some policy recommendations to promote
sustainable and healthy development of the Jiangxi Province’s real estate market |
|
Keywords: |
Impact Factor, Fuzzy Pattern Recognition Model, Real Estate Market |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0830 - 0836 Vol. 46. No. 2 -- 2012 |
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Full
Text |
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Title: |
A WIRELESS SENSOR NETWORK ROUTING ALGORITHM BASED ON ANT COLONY ALGORITHM |
|
Author: |
CHEN XIANG, LI YUN |
|
Abstract: |
This article proposed one kind based on the ant colony algorithm routing
algorithm in wireless sensor networks. According to the election of cluster head
node energy, and the use of ant colony algorithm is simple and easy to
implement, support for multiple path characteristics, through the adjacent
cluster-heads mutual exchange between the respective distances and residual
energy value information, resulting in the entire network to establish and
update the cluster heads of pheromone concentration, then according to the
pheromone concentration calculation adjacent cluster is selected as the next hop
routing. Finally, this paper makes use of NS2 simulation tools to test the
algorithm. The simulations results show that compared with LEACH algorithm, the
algorithm in energy consumption and prolong the network lifetime and have better
performance. |
|
Keywords: |
WSN, Ant Colony Algorithm, Routing Algorithm |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0837 - 0841 Vol. 46. No. 2 -- 2012 |
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Full
Text |
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Title: |
DESIGN AND IMPLEMENTATION OF METADATA MANAGEMENT IN THE NATIONAL EARTHQUAKE
NETWORK |
|
Author: |
JIANWEI ZHANG, YUNTIAN TENG, HAI LIU, SHILONG MA |
|
Abstract: |
Due to the large numbers of units and organizations in earthquake precursor
industry, there exist some problems as follows: a) how to dynamically manage the
relationships among different units; b) how to synchronize the metadata from
lower unit to upper unit in a quick way; c) how to manage the metadata
restriction in distributed system. Based on the current situation, the demand
for earthquake precursor industry, and the analysis of existing metadata
management programs, we first proposed a novel metadata management model –DAC
(Dynamic Automatic Constraints) Model, which considerate all the property of
metadata in this system, i.e. diversity, distribution and restriction. Then we
design and implement the metadata management system for earthquake precursor
industry by DAC model. Experiments show that our system meets the demand and is
appropriate for applications in the practical environment. |
|
Keywords: |
Metadata, Distributed Database System, MVC, Restriction, DAR Model |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0842 - 0848 Vol. 46. No. 2 -- 2012 |
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Full
Text |
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Title: |
BREAKPOINT MATCH TRACING- A NEW METHOD FOR THE THREE DIMENSIONAL RECONSTRUCTION
OF REGIONAL TECTONICS |
|
Author: |
PENGHAO WANG, LIANGJIE TANG |
|
Abstract: |
The method of breakpoint-match-tracing is a new numerical simulation one to
reconstruct the fault deformation process in three-dimensional space. This
method, however, based on the spatial data relationship of three dimensional
geological bodies, will reconstruct their original relationship result from
using match path to trace the breakpoint and computation. Through picking up the
breakpoint in any fault surface and considering as the research object, and
defining the sets of breakpoint as the reconstruction path for the hanging-wall
and footwall, this method will provide the boundary condition for the tectonic
deformation. The regional fault blocks would be concurrently reconstructed
combining with the Mass-Spring Equation and use it to be as parallel
computation. In this paper, the three dimensional tectonic reconstruction and
simulation for the branched faults of Archean top, distributed in Bohai Bay
Basin, were achieved using this method, and the geometric shape for the
different stages and the corresponding analysis related to the whole deformation
procedure were all also discussed. Taking the tectonic deformation stage as the
model output node, aimed at vividly reconstructing the geometric configuration
of fault and fault block, and thus the whole tectonic deformation can be fully
analyzed during the whole tectonic deformation procedure. |
|
Keywords: |
Match Tracking Method, Tectonic Restoration, Parallel Calculating |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0849 - 0854 Vol. 46. No. 2 -- 2012 |
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Full
Text |
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Title: |
ACCURATE NUMERICAL ANALYSIS OF GEAR STRENGTH BASED ON FINITE ELEMENT METHOD |
|
Author: |
XUEYI LI, CHAOCHAO LI, DAQIAN GENG, SHOUBO JIANG, BINBING HUANG |
|
Abstract: |
A dynamic analysis method is firstly presented to make up the present methods
for calculating the strength of the cylindrical gear pair. The transient stress
distribution and variation in the process of gear meshing can be obtained by
dynamic simulation, the maximum bending stress, the maximum tooth contact stress
and the corresponding worst meshing locations of the gear pair can be also
accurately determined. Then the two key influence factors for gear strength
calculation, load factor and contact stiffness coefficient, are deeply studied,
and strength curves of gear pair with different load factor and contact
stiffness coefficients are derived. Finally, comparative analysis between the
proposed FEM method and traditional ISO method are performed. Analysis results
show that the proposed method is more efficient and effective. |
|
Keywords: |
Gear Strength, Dynamic Method, Finite Element, Accurate Calculation |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0855 - 0860 Vol. 46. No. 2 -- 2012 |
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Full
Text |
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Title: |
ANALYSIS ON MECHANICAL PARAMETERS OF LUNAR ROVER WHEEL |
|
Author: |
DAWEI JIN, 1JIANQIAO LI , JIANXIN ZHU, CHUNHUA ZHANG. |
|
Abstract: |
In order to study passing ability of lunar rover in lunar soil, the mechanical
parameters between lunar wheel and lunar soil should be analyzed. The mechanical
parameters can reflect the mechanical relationship between lunar rover wheel and
regolith. These parameters include sinkage, drawbar pull, driving torque, motion
resistance and slip. In this paper, these parameters are measured by soil bin
test. The results show that, the four parameters increase with slip and loading,
except motion resistance of the test wheel which is under 70N at the speed of
25mm/s. The variations of the four parameters are slightly influenced by
velocity |
|
Keywords: |
Lunar Rover, Test Wheel, Mechanical Parameter, Lunar Soil Simulant |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0861 - 0866 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
|
Title: |
MODELING AND SIMULATION OF BALISE UP-LINK DATA TRANSMISSION BASED ON FINITE
ELEMENT METHOD |
|
Author: |
LINHAI ZHAO, YING JIANG |
|
Abstract: |
The balise is an important component in train operation control system
fulfilling the task of Ground-Train Point-Mode data transmission. This paper
presents a finite element based method for researching the electromagnetic
interaction process of balise up-link data transmission with respect to the
basic theoretical level. Based on the basic structure and working principle of
balise information transmission system, the model of balise up-link data
transmission is built by employing the finite element method. Through
simulation, the overall electromagnetic field distribution of this interaction
process is obtained. By means of contrast verification using simulation results
and practical data, the validity and credibility of this FEM based model is
proved in two perspectives, which will provide theoretical foundations for
further researches in terms of balise information transmission. |
|
Keywords: |
Balise Transmission Module Antenna, Finite Element Method, Balise Up-link Data
Transmission, Electromagnetic Interaction Process |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0867 - 0874 Vol. 46. No. 2 -- 2012 |
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Full
Text |
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|
Title: |
BELL-SHAPED PROBABILISTIC FUZZY SET FOR UNCERTAINTIES MODELING |
|
Author: |
WENJING HUANG, YIHUA LI |
|
Abstract: |
The probabilistic fuzzy set (PFS) and the related probabilistic fuzzy logic
system (PFLS) is designed for handling the uncertainties in both stochastic and
nonstochastic nature. In this paper, a bell-shaped probabilistic fuzzy set is
proposed and the related PFLS is constructed and applied to a modeling problem
to study stochastic modeling capability. It clearly discloses that the
bell-shaped PFS performs better than the previous PFS under certain stochastic
circumstance. The bell-shaped probabilistic fuzzy set gives a more general model
of fuzzy rules and improving the precision of probabilistic fuzzy logic system.
The PFLS using bell-shaped probabilistic fuzzy set improves its potential
application in engineering. |
|
Keywords: |
Bell-Shaped Probabilistic Fuzzy Set, Secondary Probability Density Function,
Random Perturbation |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0875 - 0882 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
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Title: |
3D COMPLEX CURVED SURFACE RECONSTRUCTION OF DISCRETE POINT CLOUD BASED ON
SURFELS |
|
Author: |
FENGJUN HU, ZHANGQUAN WANG |
|
Abstract: |
A Surfels 3D reconstruction method based on improved KD-Tree is put forward,
firstly collecting the discrete point cloud data through RGB-D camera, replacing
the circular or oval surfel model with hexagonal model for modeling and
determining the surfel radius in light of neighborhood distribution of sample
points; Moreover, doing inside and outside relations test between one point
model and another discrete point model, building KD-Tree for each model, setting
the axis with the longest projection length as the separating axis, improving
segmentation rules, accelerating the detection of inside and outside and
intersecting relations. Experiments show this algorithm has great reconstruction
effects on the 3D reconstruction both of heterogeneous sample points and
discrete point cloud with different resolution with steady and efficient
calculation. |
|
Keywords: |
Surfels, Discrete Cloud, 3D Reconstruction, KD-Tree |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0883 - 0888 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
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Title: |
HUMAN EYE DETECTION ALGORITHMS BASED ON THE SURF AND GEOMETRICAL REGIONAL LIMIT |
|
Author: |
YAFEN XU |
|
Abstract: |
According to the problem of human eye detection technology is being paid more
and more attention, and the existing human eye detection algorithm can't satisfy
the stability of dynamic human eye detection. This paper proposes a human eye
detection strategy based on SURF algorithm and geometric area limit, first
building Hessian matrix, and then constructing scale space, then fixing position
of human eye’s feature points and confirming the direction, and carrying out the
dynamic matching of feature points and the operation of limited detection region
in the human eye detection process. The experimental results show that the
proposed scheme can effectively extract the feature points of the human eye, and
presents a good stability in the dynamic human eye detection. |
|
Keywords: |
SURF Algorithms, Human Eye Detection, Human Eye Identification, Regional Limit |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0889 - 0893 Vol. 46. No. 2 -- 2012 |
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Full
Text |
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Title: |
ANALYSIS OF SECURITY MECHANISM IN WIRELESS CAMPUS NETWORK |
|
Author: |
XIULI ZHU, JIEYING LI |
|
Abstract: |
With the rising number of schools going to built wireless campus networks, the
current wireless campus networks cannot protect from increasing illegal network
intrusion. This paper presented an improved security mechanism for wireless
campus networks. It is based on the analysis of the shortages of current for
security mechanism for wireless campus networks, and on the optimization and
improvement of data confidentiality agreement, network authentication protocol
and access control. And also use CCMP algorithm to encapsulate and encrypt data,
present a fast authentication protocol based on public key cryptography and
control access in wireless networks’ port with the concept of virtual ports. The
results show that the security mechanism put forward in this paper can not only
protect the connection speed but at the same time increase the safety. |
|
Keywords: |
Wireless Campus Network, Security Mechanism, Data Security, Network
Authentication, Access Control |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0894 - 0898 Vol. 46. No. 2 -- 2012 |
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Full
Text |
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|
Title: |
EDGE DETECTION TECHNIQUE OF MICRO ACCESSORY |
|
Author: |
PENGLE CHENG |
|
Abstract: |
In order to improve the precision of vision inspection system for micro
accessory, edge detection technique of micro accessory was studied. Firstly, the
imaging features of the micro accessory inspection system were analyzed.
Fraunhofer diffraction happens, because the light wave is restricted by
microscope. Secondly, optical characteristics of micro images were analyzed. The
gray curve of the micro image edge does not change with the different inspected
accessories. The threshold function of the edge detection was put forward
according to the Analysis of dividing rule diffraction fringe. Finally, the
threshold function of the edge detection was applied to gauge block and pendulum
block. Experimental results indicate that the maximum error of the gauge block
inspection is 0.22μm and the maximum error of the pendulum block inspection is
0.28μm. The measuring precision of figures is up to sub-pixel and the measuring
precision of micro accessories is up to submicron. It can satisfy the system
requirements of the micro accessory inspection |
|
Keywords: |
Micro Accessory, Computer Vision, Edge Detection, Fraunhofer Diffraction,
Subpixel |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0899 - 0904 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
|
Title: |
MECHANICAL VEHICLE POWER GENERATING SYSTEM |
|
Author: |
MIN LIU |
|
Abstract: |
Currently, the mechanical vehicle generating system is a relatively developed
vehicle generating system that is widely used in a variety of places where
mobile power supply is in shortage. This paper applies CATIA to process
three-dimensional parametric modeling design for the power take-off and
transmission of the system, using PROTEL DXP to design and analyze the
electronic control part of the system. Firstly, this paper will determine the
power taking project that takes power from the fifth gear output shaft gear of
the transmission. Secondly, this paper will design and check the parameter of
gear with gear transmission method after determining the transmission ratio. And
finally the supporting project of gear will be arranged so as to design and
check the gear shaft, as well as choosing appropriate bearing and spine. |
|
Keywords: |
Power Take-off, Transmission Assemblies, Vehicle |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0905 - 0909 Vol. 46. No. 2 -- 2012 |
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Full
Text |
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Title: |
A MARKETING MANAGEMENT MODEL BASED ON ENTERPRISE RESOURCE THEORY |
|
Author: |
XUE WU |
|
Abstract: |
With the rapid development of the world economy, the marketing competitiveness
of Chinese enterprises are facing a huge challenge. Based on the status quo, a
marketing power management model based on the enterprise resource theory is
introduced, the model introduced enterprise resource management theory, and
building enterprise marketing evaluation index system according to the
characteristics of the theory, then using the fuzzy evaluation method to
establish model, last, the results will be shown by using octagonal assessment
model. The experimental results show that, the model can reflect well the level
of corporate marketing force and defects, and facilitate the evaluation and
management of corporate marketing force. |
|
Keywords: |
Enterprise Resource Theory, Marketing Power Management, Octagonal Assessment
Model, Fuzzy Evaluation |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0910 - 0914 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
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Title: |
VALUE ASSESSMENT MODEL OF HR BASED ON ASSETS APPRAISAL |
|
Author: |
LEI HE |
|
Abstract: |
As the world economy entered into a high-speed development period, company’s
demand of talented person become bigger and bigger, and the human resource value
assessment gain more and more attention. Based on the existing human resources
value evaluation method, the paper has proposed a human resource value
evaluation model based on the assets assessment. The model is established on the
basis of economic value method, future salary reward discount method, and random
compensation value method, then using distribution value method to separate the
contribution of human resources. Experiments show that the proposed assets
assessment based human resource value evaluation model is practical and
effective on human resources value evaluation, and it can reflect well the value
of human resources. |
|
Keywords: |
Assets Evaluation, Human Resources, Value Evaluation, Distribution Value Method |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0915 - 0919 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
|
Title: |
OPTIMIZATION OF VENTILATION MODE OF SMOKE CONTROL SYSTEM IN HIGH-RISE BUILDING
FIRE |
|
Author: |
RU ZHOU, WEI ZHANG |
|
Abstract: |
In high-rise building fire, a large amount of fresh air will be pressurized into
the fire floor when smoke ventilation and prevention system is used. The fresh
air dilutes the smoke, but it also reduces the efficiency of mechanical exhaust.
The assumption that vertical composition smoke control model (air curtain
combined with pressurization and exhaust fan) is put forward. The mathematic
model of smoke flow in high-rise building and κ-ε three-dimension turbulence
model with two equations are used, and the influences of smoke exhaust effect
with different smoke control modes are analyzed. The simulation and experiments
results show that: in strip corridor, air curtain can effectively prevents the
smoke moving into the atria, but the smoke control time is short relatively.
While using air curtain combined with positive pressure, the smoke control time
at least has an increase of 60s, and the vertical composition smoke control
model has the same effect as atria pressurization model, but the volume of fresh
air has decreased by 1/3. |
|
Keywords: |
High-Rise Building, Fire Smoke, Vertical Composition Model |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0920 - 0924 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
|
Title: |
ANONYMOUS E-VOTING SYSTEM BASED ON ID-BASED RING SIGNATURE |
|
Author: |
Lei Wu |
|
Abstract: |
The design of an electronic voting system has been a hot research topic in the
area of information security. Based on ID-based ring signature, blind signature,
multi-verification technology and existed typical electronic voting models, an
improved anonymous electronic voting system is designed. We proved that the new
system has good properties of security: anonymity, eligibility, fairness, non
repeatability, verifiability, etc., so it can avoid all the illegal behaviors.
We also compare its performance with some typical systems. The new system is
proved to be a practical and reliable electronic voting system, which can be
used in mobile ad hoc network. |
|
Keywords: |
E-voting, Ring signature, Multi-Verification |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0925 - 0929 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
|
Title: |
MODELING OF THE PART DYNAMICS OF THE MIDWATER TRAWL BASED ON R LANGUAGE |
|
Author: |
YUWEI LI, XINFENG ZHANG, XIAORONG ZOU, MIN ZHANG, XINJUN CHEN, LIUXIONG XU,
LIMING SONG, YINGQI ZHOU |
|
Abstract: |
In this study, the part dynamics of the midwater trawl were modeled and
simulated using mechanical equations and R language. A lumped mass method was
used to model the dynamical behavior of a net in steady flow. And the implicit
algorithm was developed to solve the stiff differential equations. The
programming, simulation and visualization of the modeling were based on the R
platform. The part dynamics of the trawl in the sea water were presented
successfully, and the motion process conformed well to the observed data in the
ocean. |
|
Keywords: |
Implicit Method, Trawl Net, Numerical Modeling, R Language, Lumped Mass Method |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0930 - 0934 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
|
Title: |
DIGITAL IMAGE WATERMARKING ALGORITHM BASED ON SIFT AND SVR |
|
Author: |
JIE ZHAO, YUXIA ZHAO |
|
Abstract: |
Digital color image watermarking algorithm based on scale-invariant feature
transform(SIFT) and support vector regression(SVR) is proposed in this paper.
The input feature vectors are selected in the wavelet domain and then the train
model is obtained by applying the support vector regression theory. The
watermark information can be embedded or extracted by utilizing the above
trained SVR model. The proposed scheme can extract the digital watermark without
the help of the original digital image. The scale-invariant feature
transform(SIFT) is employed to against the scaling and rotation attacks. To
improve the security and robustness, the original watermark is scrambled at
first. Experimental results show that the proposed scheme is invisible and
robust to common signal processing attacks such as adding noise, JPEG
compression, sharpening, smoothing, filtering, contrast enhancement, cropping,
rotation, scaling and so on. |
|
Keywords: |
Digital Image Watermarking, Scale-invariant Feature Transform, Support Vector
Regression |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0935 - 0941 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
|
Title: |
APPLICATIONS OF REGION DEVELOPING FEATURE IN WHEEL IMAGE SEGMENTATION |
|
Author: |
JINGYU YANG, SONG WANG, XIAOGANG DU |
|
Abstract: |
Online detection of protection orbit round as an important part of the train,
the tread wear parameters traffic safety is important. Like the wheel of the
measurement techniques based on optical screenshots Dimensions dynamic detection
'access to a complete round of the contour image is essential. For the round
image features is proposed based on region developing the round image
segmentation algorithm. Round of the algorithm according to the different
circumstances of the image characteristics through the base point, select the
appropriate seed points and determine the appropriate growth criteria. After
region developing, effectively extract the wheel contour image. Through a large
number of the image verification, the segmentation results of the algorithm
figure overlap area ratio is greater than 82%, the misclassification error area
ratio of less than 0.01%. Round extract can be effective in a variety of
circumstances of the contour curve has good noise immunity. |
|
Keywords: |
Round of Testing, Image Segmentation, Regional Growth, Single Connection Area
Growth |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0942 - 0947 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
|
Title: |
AN IMPROVED ALAMOUTI STRATEGY WITH ENERGY-EFFICIENCY IN WIRELESS SENSOR NETWORKS |
|
Author: |
CHENGZHI LONG, JIANPING LUO, MANTIAN XIANG, GUICAI YU |
|
Abstract: |
Sensor nodes usually operate on small batteries with restricted sources of
energy in the wireless sensor networks (WSNs). Energy efficiency is one of the
most critical concerns for it. Clustered topology schedule is important method
of saving energy with some advantages of managing conveniently, using the energy
efficiently, and fusing the data easily. This paper gives an improved Alamouti
strategy between the transmitting cluster and receiving cluster in wireless
sensor networks after analyzing the model of wireless communication. In this new
strategy, a scheme of transmitting nodes selection is proposed in order to
improve the efficiency of transmitting. The strategy adjusts the number of nodes
participating cooperative transmission according to the channel character
between the data sensor nodes and sink node. Simulations show the results of
energy consumption among optimal algorithm, bound algorithm and random
algorithm. And the superiority of the new scheme is confirmed. Some rules are
given in the process of the simulation analysis. |
|
Keywords: |
Node Cooperation, Chernoff Bound, Wireless Sensor Networks, Alamouti Strategy |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0948 - 0952 Vol. 46. No. 2 -- 2012 |
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Full
Text |
|
|
Title: |
PROCESS INNOVATION ORGANIZATIONAL EVOLUTION IN MANUFACTURING ENTERPRISES UNDER
THE CIRCUMSTANCE OF INFORMATIONIZATION BASED ON LOTKA-VOLTERRA MODEL |
|
Author: |
KEXIN BI, DI FENG, QUANZHEN BAO |
|
Abstract: |
In order to conform to the requirements of the development of information era,
the influence of informationization on innovation organization in manufacturing
enterprises has gradually become the focus of the study. Based on the theory of
innovation organization and organizational routine, this article summarizes
process innovation organizational characteristic in manufacturing enterprises
under the condition of informationization, and proposes process innovation
organizational evolution mechanism in manufacturing enterprises under the
condition of informationization, and constructs the Lotaka-Volterrra model of
process innovation organizational evolution in manufacturing enterprises under
the circumstance of informationization, then uses Matlab software to simulate
the influence of different parameters. This article will contribute to process
innovation organizational transformation and evolution in manufacturing
enterprises under the condition of informationization. |
|
Keywords: |
Informationization, Manufacturing Enterprise, Process Innovation Organization,
Organizational Evolution, Lotka-Volterra Model |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0953 - 0960 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
SUCCESSIVE INTERFERENCE CANCELLATION DECODING FOR THE -USER CYCLIC INTERFERENCE
CHANNEL |
|
Author: |
YONG LI, BO ZHANG, XIAOXIA SONG, BAOMING BAI |
|
Abstract: |
The -user cyclic interference channel can model one scenario in vehicular
networks, where all the base stations are arranged along a highway. The th user
is interfered only by the (( +1) mod ) th user in the -user cyclic interference
channel. The Han-Kobayashi scheme based rate region, the best inner bound known
to date for the two-user interference channel, is extended to the -user cyclic
interference channel, which is obtained by simultaneously decoding the intended
messages and a part of the interfered messages at the receiver. In this paper,
we show that the simple successive interference cancellation decoding can also
achieve this rate region. |
|
Keywords: |
Interference Channel, Cyclic Interference Channel, Achievable Rate Region,
Successive Interference Cancellation Decoding, Multi-level Encoding |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0961 - 0965 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
TWO-LEVEL STRUCTURE FOR ANALOG CIRCUIT FAULT DIAGNOSIS USING IMPROVED DAGSVM AS
CLASSIFIER |
|
Author: |
KE GUO, YI ZHU, YE SAN |
|
Abstract: |
Fault diagnosis of analog circuit is of essential importance for guaranteeing
the reliability and maintainability of electronic systems. Taking into account
the requirements and characteristics of analog circuit fault diagnosis,
two-level diagnostic structure for analog circuit is proposed in this paper.
Analog circuit fault diagnosis can be regarded as a pattern recognition issue
and addressed by multi-class SVM. Aiming at the uncertainty of the node
arrangement and the error accumulation phenomenon, the improved directed acyclic
graph support vector machine (DAGSVM) based on fisher separability measure in
high dimensional feature space and margin of SVM is proposed. In order to
eliminate redundant fault features and the impact of measure noise on the
diagnostic accuracy, simultaneously taking into account lightening the workload
of the classifier, the separability promotion algorithm based on kernel
principal component analysis (KPCA) plus linear discriminant analysis (LDA) is
proposed. Then the separability promotion algorithm is used to extract the
nonlinear fault features of analog circuit and the two-level structure based on
improved DAGSVM is applied to diagnose faults in analog circuit. The unbalanced
classification model based on SVM is adopted in the first level. The
effectiveness of the proposed method is verified by the experimental results. |
|
Keywords: |
Fault Diagnosis, Analog Circuit, Improved DAGSVM, Separability Promotion
Algorithm, Kernel Principal Component Analysis |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0966 - 0976 Vol. 46. No. 2 -- 2012 |
|
Full
Text |
|
|
Title: |
A PROBABILISTIC FUZZY SET FOR UNCERTAINTIES-BASED MODELING IN LOGISTICS
MANIPULATOR SYSTEM |
|
Author: |
YIHUA LI, WENJING HUANG |
|
Abstract: |
The probabilistic fuzzy set (PFS) and the related probabilistic fuzzy logic
system (PFLS) are designed for handling the uncertainties in both stochastic and
nonstochastic nature. In this paper, a novel probabilistic fuzzy set is proposed
by randomly varying widths of the Gaussian membership function. Then the related
PFLS is constructed and applied to logistics manipulator system problem to study
its stochastic modeling capability. It clearly discloses that the novel PFS
perform better than the previous PFS. The work presented can extend the
potential application of probabilistic fuzzy set. |
|
Keywords: |
Probabilistic Fuzzy Set, Secondary Probability Density Function, Rigid-Flexible
Manipulator, Modeling Capability |
|
Source: |
Journal of Theoretical and
Applied Information Technology
pp 0977 - 0982 Vol. 46. No. 2 -- 2012 |
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Title: |
CONCEPTUAL FRAMEWORK FOR RECURSION IN COMPUTER PROGRAMMING |
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Author: |
SABAH AL-FEDAGHI |
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Abstract: |
Recursion is an important concept and a fundamental problem-solving technique in
computer science. Studies have reported that it is considered a very difficult
concept for students to learn and teachers to teach, and students have many
misconceptions about recursion. Tools proposed to overcome these difficulties
include visualization and algorithm animation. Conceptual models form the basis
of methods for teaching recursion and influence the instructional tactics used
when teaching it. Conceptual models of recursion have been found to provide a
necessary representation for understanding the mechanics of recursion. Several
of these models have been proposed, including the Russian dolls model, process
tracing model, mathematical induction model, and structure template model. These
are not based on a systematic foundation that visualizes the process in terms of
flows of the recursive algorithm from the stages of creating (copying) then
processing (executing) it. This paper presents such a methodical conceptual
picture that describes the recursive process in a precise, visual way that
assists in teaching and learning. The new model is illustrated by several
examples, including factorial and binary tree traversing. |
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Keywords: |
Recursive Process, Recursion, Computer Programming, Conceptual Model |
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Journal of Theoretical and
Applied Information Technology
pp 0983 - 0990 Vol. 46. No. 2 -- 2012 |
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Title: |
RELIABILITY REDUNDANCY OPTIMIZATION FOR OPTIMAL DESIGNING IN GAS TURBINES’
OVERSPEED PROTECTION USING ELITISM BOX-MULLER HARMONY SEARCH ALGORITHM |
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Author: |
ABDOLVAHHAB FETANAT, GHOLAMREZA SHAFIPOUR, FARROKH GHANATIR |
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Abstract: |
This paper proposes an optimal design for control and overspeed protection in
Gas turbine by means of reliability redundancy optimization. In general form,
the problem is consisting of four control valves (stop valves), as a subsystem,
each of them has the same components with reliability, weight and other
parameters. The problem objective is to find a maximum reliability for total
system in order to stop control valves in turbine’s overspeed state. The
objective function is optimized and solved using a new type of Harmony Search
Algorithm (HSA) that authors call it Elitism Box-Muller Harmony Search Algorithm
(EBMHSA). The simulation results show that this method gives a better and
accurate solution compared with the other algorithms. |
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Keywords: |
Reliability Redundancy Optimization, Optimal design, overspeed, Gas turbine,
Elitism Box-Muller Harmony Search Algorithm (EBMHSA) |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 0991 - 1000 Vol. 46. No. 2 -- 2012 |
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Title: |
AN EXPERT SYSTEM BASED SOFTWARE FOR REDUCTION OF SEQUENCE NETWORKS |
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Author: |
ZAINUDDIN MAT ISA, MARIZAN SULAIMAN, MOHD FAYZUL MOHAMMED, NURUL FARHANA ABDUL
HAMID, MAASPALIZA AZRI |
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Abstract: |
This paper describes a new Expert System Based Software for Reduction of
Sequence Networks. The main aim is to develop a new tool that helps students to
reduce the corresponding sequence networks to its simplest form. Reduction of
sequence networks is important for power system fault analysis. The equivalent
positive-, negative- and zero- sequences are represented as a series and
series-parallel combination of per-unit impedance. Reduction process will
replaces them by the single equivalent impedance for each sequence network.
Using this tool, students will deeply understand the flow of reduction process.
Rather than that, the system is capable to examine the sequence network to
observe whether it can be reduced depends on the selected fault location. This
system applies the expert system concepts during the process. Hopefully this
tool will provide new medium in learning and teaching fault analysis besides
make it easy and interesting to learn. |
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Keywords: |
Sequence Networks, Network Reduction, Fault Analysis, Expert System |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 1001 - 1006 Vol. 46. No. 2 -- 2012 |
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Title: |
HANDOVER PROBLEM FOR INTEGRATING LTE WITH FEMTOCELL NETWORK |
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Author: |
A. BAGUBALI, V. PRITHIVIRAJ, P. S. MALLICK, KISHORE V KRISHNAN |
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Abstract: |
Femtocell handover is more exigent than normal macrocell cellular handover
because the backhaul network is different and there is also little possibility
of direct communication between the macrocell and the femtocell. In this paper
we have analysed the prevailing handover strategy, where Femtocell deployed in
LTE Network and a new handover strategy between macrocell and femtocell for LTE-based
network in hybrid access mode named RWTL-HO algorithm has also been proposed.
This new strategy can avoid unnecessary handover and reduce handover failure. |
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Keywords: |
LTE, Femtocell, Rss-α-Handoff, Rwtl-Handoff |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 1007 - 1012 Vol. 46. No. 2 -- 2012 |
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Title: |
E-GOVERNMENT IN DEVELOPING COUNTRIES: FRAMEWORK OF CHALLENGES AND OPPORTUNITIES |
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Author: |
AHMAD MOUSA ODAT |
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Abstract: |
Responsibility of success the Electronic Government (E-Government) is the
responsibility of all citizens. E-Government is a massive automated project that
uses Information and Communication Technologies (ICTs) to promote more efficient
and effective of government, facilitate more accessible government services, and
make government more accountable to citizens.
Through the implementation of E-Government, there are a lot of challenges and
difficulties, at the same time there are a lot of opportunities that will help
us to accelerate the application of E-Government.
This paper will be introduced these challenges and opportunities for developing
a successful E-Government in developing countries, so we will discuss in detail
the situation in Pakistan, India, Malaysia, Jordan, and others as examples. The
aim of this study is find a general framework for the challenges and
opportunities that facing the developing countries. Important issues will be
discussing in this paper e.g., IT infrastructure, digital cultural, managerial
issues, legislation issues, and budgeting. |
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Keywords: |
E-Government, Information And Communication Technology (ICT), Challenges, IT
Infrastructure, Opportunities |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 1013 - 1021 Vol. 46. No. 2 -- 2012 |
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Title: |
ADAPTIVE HYPERMEDIA USING LINK ANNOTATION TECHNOLOGY AND RECOMMENDER MODEL (AHLARM) |
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Author: |
N. DEEPA , S. PRIYADARSINI, VENKATESH MAHADEVAN, JOEL WILSON |
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Abstract: |
Adaptive hypermedia systems (AHS) combine hypermedia, user modeling techniques
and a certain type of artificial intelligence that modifies the structure and
contents of hypermedia documents according to each user. We have many Internet
users now a days and also there are more number of webpages, it is very
difficult for the surfers to find the information they need. Users must browse
through a large hierarchy of concepts to find the information for which they are
looking for. Users should be provided with web content/links based on their
interests and preferences, thus allowing for more efficient and relevant
information access. User’s interests are based on his/her browsing behavior, the
sites he/she visits, his/her prior history, and detailed interactions on web
sites of interest to form a user interest profile. This paper focuses on
providing adaptive presentation to the surfers which involves personalization,
building and updating user profiles by monitoring and storing the users’
browsing habits, recommending content/links by web usage logs and providing
dynamic links via graphical objects. There are many Hypermedia Systems available
which are related to a specific Application. In this paper we study the general
purpose Adaptive Hypermedia System (AHLARM) for an application-independent
architecture. |
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Keywords: |
Adaptive Hypermedia, User Modeling, Recommender Systems, Adaptation, Link
Annotation |
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Journal of Theoretical and
Applied Information Technology
pp 1022 - 1028 Vol. 46. No. 2 -- 2012 |
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Title: |
HEART SOUND ANALYSIS USING LABVIEW |
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Author: |
N.RUBAN, GUNEET PAL SINGH ARNEJA, KAPIL BANSAL, MATHEW M NOEL |
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Abstract: |
This paper presents an algorithm to separate the heart sounds, using LabVIEW.
The proposed algorithm reads the audio sample signals in .wav format and
converts them into a 2-dimentional array. The values stored in this
2-dimentional array and the values of both the separation coefficients are
finally fed into the last phase of the algorithm which leads to the separation
of heart sounds. After separation, the S1 and S2 signal can be processed in
parallel or independently to infer more accurate results. This user friendly
technique of separating heart sounds makes it easy for the medical professionals
to interpret heart disorders and to further make a better diagnosis. |
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Keywords: |
Heart sounds, S1, S2, separation coefficients, Virtual Instrument (VI), National
Instruments-Data Acquisition (NI-DAQ), LabVIEW. |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 1029 - 1033 Vol. 46. No. 2 -- 2012 |
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Title: |
HYBRIDIZING RELIEFF, MRMR FILTERS AND GA WRAPPER APPROACHES FOR GENE SELECTION |
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Author: |
SALAM SALAMEH SHREEM, SALWANI ABDULLAH, MOHD ZAKREE AHMAD NAZRI, MALEK ALZAQEBAH |
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Abstract: |
Gene expression data comprises a huge number of genes but have only few samples
that can be used to address supervised classification problems. This paper is
aimed at identifying a small set of genes, to efficiently distinguish various
types of biological sample; hence we have proposed a three-stage of gene
selection algorithm for genomic data. The proposed approach combines ReliefF,
mRMR (Minimum Redundancy Maximum Relevance) and GA (Genetic Algorithm) coded as
(R-m-GA). In the first stage, the candidate gene set is identified by applying
the ReliefF. While, the second minimizes the redundancy with the help of mRMR
method, which facilitates the selection of effectual gene subset from the
candidate set. In the third stage, GA with classifier (used as a fitness
function by the GA) is applied to choose the most discriminating genes. The
proposed method is validated on the tumor datasets such as: CNS, DLBCL and
Prostate cancer, using IB1 classifier. The comparative analysis of the R-m-GA
against GA and ReliefF-GA has revealed that the proposed method is capable of
finding the smallest gene subset that offers the highest classification
accuracy. |
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Keywords: |
Genetic Algorithm, Gene selection, Microarray datasets, mRMR, Relief |
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Source: |
Journal of Theoretical and
Applied Information Technology
pp 1034 - 1039 Vol. 46. No. 2 -- 2012 |
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