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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
August 2016 | Vol. 90 No.1 |
Title: |
UNDERSTANDING THE ACADEMIC USE OF SOCIAL MEDIA: INTEGRATION OF PERSONALITY WITH
TAM |
Author: |
MURAD ALI, RAJA AHMAD ISKANDAR B RAJA YAACOB, MOHD NURI AL-AMIN B ENDUT |
Abstract: |
The emergence of Web 2.0 applications has changed the entire landscape of
information sharing and empowering every individual to create, access and
sharing information through its multiple channels. These applications are
generally known as social media or social web and considerably popular among
student which assists them in achieving of effective learning. However, students
consider this platform as a source of entertainment and use it considerably for
their social interactions. This attitude of students has revolutionized these
channels into a source of distraction, which diverts their attention from
learning and academic achievements. Previous research mainly highlighted its
importance to different aspects of human communication and students academic
performance. Anyhow, less effort has been made to understand student academic
use of social media and find factors that can improve student online
connectivity for academic purposes and to avoid distraction. The purpose of the
current study is to understand the students use of social media for academic
purposes, which is the basic step in reducing students online distraction by
integrating their psychological characteristics and beliefs. Data for the
current research was collected through a survey from undergraduate students of
top five ranking research universities Malaysia. The collected data analyzed
with help of SPSS Amos (Version-20) by applying structural equation modeling (SEM)
techniques. Technology Acceptance Models [1] and Five Factor Model of
personality [2] were used as a theoretical approach, our finding shows that
information quality is the most important factor in acceptance of social media
for academic purposes. Furthermore, study limitation and future direction are
also discussed. |
Keywords: |
Social media, TAM, Personality, Online Learning, Models Integration |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
THE DEVELOPMENT OF A STORYTELLING FRAMEWORK TO SUPPORT KNOWLEDGE MANAGEMENT
PROCESSES |
Author: |
KHAIRUL SHAFEE KALID, AHMAD KAMIL MAHMOOD |
Abstract: |
In knowledge management (KM), storytelling is used primarily as a tool to
capture and transfer knowledge that has tacit qualities. Knowledge with tacit
qualities is best represented through storytelling. However, the idea of using
storytelling in KM settings is less understood by organizations. Numerous
academic and non-academic literatures have been published in the area of
storytelling and knowledge management. From the literature survey that has been
conducted, a gap in the area of storytelling and knowledge has been identified.
From the literature survey, there seems to be a lack of studies conducted on a
framework that integrates the storytelling elements (i.e structure, components
and attributes) and KM. This paper presents the development of a KM storytelling
framework that guides the construction of a knowledge-embedded story. Workshop
sessions were conducted to understand how knowledge embedded stories are
constructed. Data from the workshop were collected qualitatively through
interview sessions. The interviews were transcribed and analyzed using an
interpretive approach. This study contributes to the area of storytelling in
knowledge management by bridging the gap between the concept of storytelling and
its practical use in knowledge management. The outcome of this study is a
framework that guides organizations constructing knowledge embedded stories
hence, contributing in KM storytelling implementation in organizations. |
Keywords: |
Knowledge Management, Knowledge Management Processes, Knowledge Capture,
Storytelling Framework, Knowledge Embedded Story, |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
A GENETIC ALGORITHM FOR OPTIMIZED INITIAL CENTERS K-MEANS CLUSTERING IN SMEs |
Author: |
BAIN KHUSUL KHOTIMAH , FIRLI IRHAMNI , AND TRI SUNDARWATI |
Abstract: |
This research applies Genetic Algorithm to find the initial cluster centers and
the centers of this cluster will be used as an input for the K-Means method.
This method yield a more optimal performance compared to the conventional
K-Means method since the centers point is optimized with Genetic Algorithm.
Unfortunately, k-means is extremely sensitive to the initial choice of centers,
and a poor choice of centers may lead to a local optimum that is quite inferior
to the global optimum. The proposed research initial clustering and assigns at
least one seed point to each cluster. During the second step, the seed-points
are adjusted to minimize the cost-function. The algorithm automatically
penalizes any possible winning chances for all rival seed-points in subsequent
iterations base on cost-function to reaches global minimum. This method will
perform optimization centers point K-means clustering using Genetic Algorithms.
The Genetic Algorithms optimize centers point of the cluster more faster
performance. The simulated experiments described in this paper confirm good
performance have used distance measure. So, the analyses performance cluster
used SSE (Sum of Squared Error). The minimum Cluster SSE of combination Genetic
Algorithm with K-Means Clustering (GA+KMeans) the smallest in compared with the
K-Means algorithm of Clustering SMEs. |
Keywords: |
Clustering, K-Means, Genetic Algorithm, Initial Centers, Smes |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
LEARNING MEDIA OF BALINESE SCRIPT WRITING BASED ON AUGMENTED REALITY |
Author: |
A.A. K. OKA SUDANA, KADEK SUAR WIBAWA, I MADE ARI DHANU TIRTHA |
Abstract: |
Balinese Script is one of the Bali Cultural wealth that must be preserved.
Balinese Script is a traditional script used to write Balinese Language and
Literature. Conventional teaching method with traditional learning media can be
one factor of students disinterest, especially children in writing Balinese
Script in their educational institutions. Learning media of Balinese Script
writing that is packaged in the form of Augmented Reality applications in gadget
with applying the Android operating system is expected to be a solution to
increase user interest in studying Balinese Script. Learning media application
of Balinese Script based on Augmented Reality focuses on learning of how to
write Balinese Script. These features overall are packaged in 3-dimensional
animation which is completed by voice instruction in Balinese Language and
additional information in the form of explanation of every Balinese and examples
of words in Balinese. Learning media of Balinese script writing based on
Augmented Reality applies multi target marker methode in order to detect some
image target in one object target simultaneously. Raycast technique is applied
in order to choose one image target or one of Balinese script 3 dimensional
object which is occured as the result of multi target marker detection. |
Keywords: |
Balinese Script Writing, Learning Media, Augmented Reality, 3D Animation, Multi
Target Marker Methode, Raycast Technique. |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
EFFECTIVE BRANCH AND DU COVERAGE TESTING THROUGH TESTCASE PRIORITIZATION USING
GENETIC ALGORITHM |
Author: |
P.VELMURUGAN, RAJENDRA PRASAD MAHAPATRA |
Abstract: |
Software testing is all about ensuring an error free execution of the system or
module being developed. The testing procedure initially consists of a large
number of test cases that are needed to be reduced so that the execution time
needed for testing could be minimized. After the reduction has been done, a few
test cases are left. Here an important factor becomes the order of the execution
of the obtained number of test cases. This ordering is called as test case
prioritization. Prioritization of test cases is a process in which test cases
are executed in an ordered fashion so as to increase the fault detection rate.
There are many types of prioritization techniques used for statement coverage
that have been used in past. In this paper, the testcase prioritization
technique used for branch coverage and DU pair coverage to improve the
effectiveness of testing process. The proposed methodology uses genetic process
for prioritizing the test cases to detect the fault as earlier as possible to
improve the effectiveness of branch and DU pair testing. |
Keywords: |
Test case reduction, prioritization, genetic algorithm, DU pair testing, branch
testing\ |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
A COMPREHENSIVE ADOPTION MODEL OF M-GOVERNMENT SERVICES AMONG CITIZENS IN
DEVELOPING COUNTRIES |
Author: |
MST REBEKA SULTANA, ABDUL RAHMAN AHLAN, MD. HABIBULLAH |
Abstract: |
M-government (Mobile Government) has become popular among many developing
countries including Bangladesh. Since m-government is still in early stage of
implementation, few studies have identified the acceptance factors of using
services among citizen. However, most of the studies identified the adoption
factors based on Technology Acceptance Model (TAM), Theory of Planned Behavior (TPB),
Theory Reason Action (TRA) and trust-related model. This study aims to propose
an adoption model suitable for developing countries using Unified Theory of
Acceptance and Use of Technology (UTAUT) and model of trustworthiness. Some
important factors such as, perceived good governance and less corruption,
perceived public value and culture also are included in this model. |
Keywords: |
Mobile Government, Technology Adoption, UTAUT, Trustworthiness, Public Value,
Good Governance, Corruption, Developing Country. |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
APPLICATION OF BASIC BALINESE DANCE USING AUGMENTED REALITY ON ANDROID |
Author: |
NI PUTU SINRIA FRANZA, A.A.K. OKA SUDANA, KADEK SUAR WIBAWA |
Abstract: |
Balinese dance is a regional culture in Bali that must be preserved. Balinese
dance can be conserved by using Augmented Reality technology. Augmented Reality
technology is a combination of two-dimensional or three-dimensional virtual
objects into a real environment. This Android-based applications combine with
technology of Augmented Reality can be a media application to learn basic
Balinese dance movement which can access by the users of smartphone. Augmented
Reality technology is able to make the application of learning basic Balinese
dance movements become more interactive and interesting. This application uses
vuforia which is capable to play sound and display 3D objects of picture basic
balinese dance as a marker, into a real environment. The result of this research
is a book which contains information and images related to basic movements of
Balinese dance which functioned as a marker. This Android-based application
capable to display object dancer in 3D with the position and movement of
Balinese Dance above the marker and play sound which contain information about
the movements of Balinese dance. This application can be used as a media to
introduce Balinese culture to other countries. Balinese dance in this
application also helps to maintain the culture of Bali which has became an
interesting attraction for tourists both local and foreign. |
Keywords: |
Balinese Dance, Augmented Reality, Vuforia, Android. |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
SELF STABILIZED FRCA USING CONNECTED DOMINATING SET FOR WIRELESS MOBILE ADHOC
SENSOR NETWORKS |
Author: |
T MADHU, S S V N SARMA, J V R MURTHY |
Abstract: |
Wireless Mobile Ad hoc Sensor Networks (WMASNs) are infrastructure less,
multiple hop, energetic network constructed using a group of moveable nodes.
Self-stabilization is a theoretic outline of non-screening fault-tolerant. This
scheme endures any sort and any countable amount of transitory errors like
information damage, memory exploitation, and topological deviations. This paper
suggested a novel self-stabilized methodology to the existing Fuzzy Based
Clustering Algorithm as to guarantee that event though in case of a cluster head
selection for different clusters, when the network attains any illegitimate
state, this novel approach always reaches to a legitimate state. The
self-stabilization for the clustering network is achieved by constructing a
minimum Connect Dominating Sets (CDS) that is employed with Bread First Search (BFS)
Tree construction and the proof for the correctness of the self-stabilized
approach is given. The proof of correctness is given by means of five
guarded-commands in this algorithm. |
Keywords: |
Wireless Sensor Networks, Self-Stabilization, Connect Dominating Sets,
Clustering Head Selection, Breadth First Search |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
PRELIMINARY STUDY OF ONLINE TRAINING IMPLEMENTATION FROM MULTIPLE PERSPECTIVES
IN MALAYSIAN PUBLIC SECTORS |
Author: |
NOR AZILAH MOHD ASARANI, NOR ZAIRAH AB RAHIM |
Abstract: |
In a constantly changing and evolving global and organizational environment, it
is necessary to improve the skills of human resources. The innovation of
information technologies nowadays has contributed to the exponential expansion
in online training in Malaysia. The number employees attending online training
courses have increased tremendously but very low percentage of course completion
have been reported, thus raised many questions in the implementation of online
training in Malaysian public sectors. This study was conducted to construct a
research framework on online training implementation in Malaysian public
sectors. The criteria of online training implementation are also being
determined through different perception of stakeholders. Based on the literature
review, the study posited four constructs adopted from Kirkpatrick’s learning
theory through Multiple Perspectives Theory. The preliminary study conducted
involves 3 set of interviews with respondents involved in providing online
training at Malaysia’s National Institute of Public Administration (INTAN) as
providers or consultants of public sectors online training. The preliminary
findings showed that the criteria are applicable with the mentioned criteria in
the literature review thus suitable to be mapped into the conceptual framework. |
Keywords: |
Online Training, Online Training Implementation, Public Sectors, Multiple
Perspectives |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
AUGMENTED REALITY FOR CHEMICAL ELEMENTS: PERIODIKAR |
Author: |
A.A.K. OKA SUDANA, AGUS SETIAWAN, I PUTU AGUS EKA PRATAMA |
Abstract: |
A periodic table is a group of arranged chemical elements that contain some
information for each element. Information in a periodic table usually provided
in the text form, which is less interesting to learn. It can be overcome by
creating a visualization of each element. Augmented Reality is a technology that
can be used for visualizing objects. In this paper, augmented reality technology
implemented for visualizing each element in a periodic table, named PeriodikAR.
PeriodikAR is an application developed for Android platform by using Vuforia
library. The object-tracking technique that is used in this application is
markerless augmented reality technique. This application runs dynamically to
provide some information of elements in an animated video. The information
including the name of each element, atomic number, boiling point, melting point,
density, atomic mass, standard atomic weight, oxidation state, symbol, phase,
element category, electron configuration and visualization of electron orbital.
In this case, the term of dynamic means all the marker and animated video of the
application can be added or subtracted without modifying the source code of the
application. It is because all the markers and animated videos storage are
placed in the different place from the application’s storage. PeriodikAR aims to
help academics develop dynamic augmented reality applications. In addition, this
application aims to increase the interest of studying the chemical elements.
This application has six features that can be used. The result of application
test showed that the smallest marker which can be tracked is 1x1,5cm. Animated
video as the resulted from that marker has a good quality with no buffering. The
contribution of this study is providing development of dynamic augmented reality
applications that are used as a learning media of chemical elements. |
Keywords: |
PeriodikAR, Dynamic Augmented Reality, Augmented Reality for Chemical Elements,
Animated Video of Augmented Reality |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
DRIVERS INFLUENCING SHARED SERVICES ADOPTION |
Author: |
AHMAD FADHIL YUSOF, SURAYA MISKON, NOORMINSHAH A. IAHAD, AZIZAH ABDUL RAHMAN,
NORRIS SYED ABDULLAH, ALEX TZE HIANG SIM, NORASNITA AHMAD |
Abstract: |
Organizations seeking improvements in their performance are increasingly
exploring alternative models and approaches for providing support services; one
such approach being Shared Services. Shared Services has the potential to
provide positive and powerful impact to the organizations with the support of
Information Systems (IS) as the platform for Shared Services application and
implementation. Due to this situation, Shared Services is becoming one of the
choices in IS area for researcher to conduct a research. Shared Services results
a lot of positive outcomes especially improving on the organizations financial
expenses. Although various studies have been identified in discussing about the
benefits of Shared Services, drivers of Shared Services that influence its
adoption have received little research attention. This paper has identified
several drivers that influence organizations to adopt Shared Services. By using
NVivo as a tool to analyze the content from selected journal articles, 5 drivers
of Shared Services adoption were identified. This suggesting the strength and
benefits in adopting shared service. By identifying the drivers, it could
encourage the top management as the decision maker to implement Shared Services
in their organization. Thus, this could lead to the business operation to
operate more effectively. |
Keywords: |
Shared Services, Drivers, IS literature, NVivo, Adoption. |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
SERVICE DISCOVERY IN AD-HOC MOBILE CLOUD: CONTEMPORARY APPROACHES AND FUTURE
DIRECTION |
Author: |
DOMINIC AFURO EGBE, M.B. MUTANGA, M.O. ADIGUN |
Abstract: |
Service discovery is fundamental to Service Oriented Computing (SOC). Ad-hoc
Mobile Cloud (AMC) takes advantage of SOC and Service Oriented Architecture
principles in providing services to clients. This emergent paradigm promises to
alleviate mobile devices from challenges associated with consuming remotely
offered services. However, like other service offering platforms, AMC faces
additional and unique service discovery challenges due to their inherent nature
such as mobility, resource-constraints and dynamic context. Although
conventional web services technologies and approaches exist, they do not fulfill
the core requirements of mobile devices, and hence are not suitable for use in
the AMC environment. To facilitate the realization of the prospects of AMC, it
becomes highly imperative to study conventional and emerging web services
approaches and their impact on performance in AMC domain. In this paper, we
study existing web services enabling technologies and approaches that impact on
service discovery in AMC. We focus on suitability for AMC based on resource
requirements and other factors associated with mobile environments. Our findings
reveal that conventional web services approaches cannot be directly applied in
AMC environment. This is mainly due to their inability to meet the requirements
of resource-constrained devices. On the other hand, other approaches that
consider resource limitation and other challenges associated with
resource-constrained environments need to expand their scope to include the
application of context information. |
Keywords: |
Ad-hoc Mobile Cloud, Service Discovery, Architecture, Resource-intensive,
Dynamic Context |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
SENTIMENT ANALYSIS AND CLASSIFICATION USING LEXICON-BASED APPROACH AND
ADDRESSING POLARITY SHIFT PROBLEM |
Author: |
NILAM V. KOLEKAR, PROF.GAURI RAO, SUMITA DEY, MADHAVI MANE, VEENA JADHAV, SHRUTI
PATIL |
Abstract: |
As we know that in recent years e-commerce has been growing, so volume of online
reviews on the web is also increasing for different sides due to which we can
understand that the particular product or things are good for use or not and
their current status in market. In Natural Language Processing (NLP) and text
mining, different models and methods are useful for text representation and
categorization purposes. Bag-Of-Word (BOW) model is one such model used to model
the text. But polarity shift problem is a major factor in Bag-Of-Word model
which can effect on classification performance of Sentiment Analysis. In our
methodology, we address the polarity shift problem by detecting, removing and
modifying negation from extracted review to identify where the sentiment
orientation is actually changing in given review. Our main idea is Sentiment
analysis and classification which is based on machine learning approach using
Lexicon based antonym dictionary. We build system for Sentence-level sentiment
classification. We first extract product reviews from one of the customized
shopping portal. When extracted reviews are simple sentences then system is
trained to directly find its opinion target, and classify it according to its
sentiment polarities i.e. is positive, negative and neutral class labels. When
extracted reviews are compound and complex sentences then we first split it into
subsentences and build a model based on some rules to detect, remove and modify
polarity shift in contrast of negation to identify where the sentiment
orientation is changing in compound or complex sentences. After that, we
classify review according to its polarity and determine the targets of opinion
given in review. Furthermore, we extend our system for opinion summarization
based on opinion features or aspects and graphically represent overall summary
of Positive, Negative and Neutral sentiments of customer for each product. |
Keywords: |
Natural Language Processing, Opinion Mining, Machine Learning, Sentiment
Analysis, Polarity Shift. |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
MAPPING UML TO OWL2 ONTOLOGY |
Author: |
OUSSAMA EL HAJJAMY, KHADIJA ALAOUI, LARBI ALAOUI , MOHAMED BAHAJ |
Abstract: |
UML (Unified Modeling Language) is a standardized modeling language widely used
by domain experts to model real-world objects in developing object oriented
applications. On the other hand, the conceptualization, which is represented in
OWL, is designed for use by applications that need to process the content of
information instead of just presenting information. Therefore, the problem of
migrating UML to OWL is becoming an active research domain. In this paper we
present a detailed and comprehensive comparison of the differences between the
two languages, analyze the existing mapping methods between them and propose a
novel process of direct and automatic mapping solution UML2OWL2 that generalizes
these methods. Our process preserve the semantic of some features of UML class
diagrams such as inheritance, data types, types of associations (compositions,
class associations, N-ary associations, reflexive associations, dependency and
simple associations …). It defines precise transformation rules and provides a
model of ontology while covering the semantic of the source UML class diagrams.
A tool based on our approach has also been developed and tested to demonstrate
the practical applicability of our strategy. |
Keywords: |
UML, OWL2, direct mapping, automatic mapping, semantic, ontology, UML class
diagram |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
PROPOSING A MODEL TO PREDICT STUDENTS’ PERCEPTION TOWARDS ADOPTING AN
E-ASSESSMENT SYSTEM |
Author: |
SHERVIN FARZIN, HALINA MOHAMED DAHLAN |
Abstract: |
Information communication technology (ICT) is the buzzword of the 21st century.
The letter ‘E’ appears in the words e-commerce, e-learning, e-banking and etc.
In essence, the said letter reflects the ICT component that is utilized in
providing more ‘reach’ in addition to making more effective and efficient
commercial transactions, information and knowledge transactions and financial
transactions to name a few. An e-based system will be utilized when there are
supportive factors that collectively encourage its use. The perspective of the
user is an undeniably important component. E-based systems may exist in an
educational environment for varied purposes. Assessments inevitably play a role
in such an educational environment as one of the many ways available to measure
students learning outcomes. Thus, this study was conducted to explore students’
perspective on engaging in an e-assessment experience. In that sense, the first
and foremost step forward would be to recognize and identify real world problems
and issued students are facing in their practice. So as to reach this goal, the
study moved forward with the phase of article selection which is done through
well-known academic databases. In continue, selected articles went through
filtering phase so the most relevant studies disclosed. Secondly, to map those
identified issues with corresponding behavioral factors of adoption. As a
result, this could set the stage right for future studies on resolving issues
and enhancing the e-assessment practice. This study reveals that UTAUT is the
most suited underlying theory, and two constructs, namely Computer Anxiety and
Habit are incorporated into the model to tailor the UTAUT so it could fit the
case of e-assessment adoption. |
Keywords: |
Electronic Assessment System, E-Assessment, Adoption, E-Assessment Adoption,
E-Assessment Problems |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
MLMN: AN EFFICIENT FRAMEWORK FOR MULTI-LAYER MODEL FOR NOVELTY DETECTION IN DATA
MINING |
Author: |
ASHAY URADE, POORVA AGRAWAL |
Abstract: |
Data Classification is one of the boons to the mining process which eventually
eases the process of machine learning. But it is always a doubt about the data
that is being used for the classification process. As in Supervised,
semi-supervised and unsupervised learning styles the selected data for the
classification is always having a chance of missing unknown and new data from
the data pool this adversely affects the quality of the mining process. So the
process of extraction of unknown and new data from the huge data pool for
classification process is very important and it is known as novelty detection.
So this research of MLMN provides an ideal way to detect the novelty data that
is been using in the further classification process. This research mainly
focuses on the multiple layers like 1) Pattern identification, 2) Density
Classification, 3) Distance identification and 4) Learning models for the
efficient process of novelty detection. |
Keywords: |
K-Means, Gaussian Distribution, Euclidean Distance, Hamiltonian Jacobi,
Fuzzy Logic. |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
DETERMINATION OF STABILITY INDEX OF ELECTRICAL POWER SYSTEM USING REI-DIMO
METHODS |
Author: |
INDAR CHAERAH GUNADIN., SRI MAWAR SAID, MUHAMMAD IRSAN |
Abstract: |
Determination of electrical power system stability index by the REI-Dimo’s
method. This method is used to determine the Z equivalent of a system that has a
lot of bus load becomes 1 bus load center. The method that has been developed by
Paul Dimo could show how the effect of adding the load on the system whether it
is still well worth or not by observing the output of stability index.
Calculation results for load conditions with the active power (P) 785.41 MW and
reactive power (Q) 136.35 MVAr have a stability index of -21.452. Under these
conditions, adding to the load with active power (P) 1818.22 MW and reactive
power (Q) 315.65 MVAr has reached a critical point with a stability index of
-0.1175. |
Keywords: |
REI-Dimos Methods, Bus Load Center, Stability Index |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
EFFECTIVE SOFTWARE FAULT LOCALIZATION USING GA-RBF NEURAL NETWORK |
Author: |
DR. R.P. MAHAPATRA, ANURAG NEGI |
Abstract: |
This paper proposes application of GA-RBF Neural Network Algorithm in context of
software fault localization. A neural network is trained on the basis of Code
Coverage information of a test case and the corresponding execution result,
successful execution or failure. The weights and structure of the RBF neural
network is then optimized using Genetic algorithm. The hidden layer neurons
number and connection weights are encoded using binary encoding and real
encoding respectively. For further leaning, LMS (Least Mean Square) algorithm is
used. A set of virtual test cases (each covering a single statement) is then
given input to the trained and optimized network. The output of the network is
considered to be “degree of suspiciousness” of the corresponding statement.
Finally the statements are ranked on the basis of their corresponding degree of
suspiciousness. |
Keywords: |
Software Fault Localization, GA-RBF Neural Network, Software Debugging, Genetic
algorithm, Radial Basis Function. |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
AUTOMATIC CLUSTERING OF MICROARRAY DATA USING ART2 NEURAL NETWORK |
Author: |
FADOUA RAFII, BADR DINE ROSSI HASSANI, M HAMED AIT KBIR |
Abstract: |
The Microarray technology has offered an overall view on the activity levels of
numerous genes simultaneously. A typical Microarray dataset is characterized by
a large number of genes; which is usually high with respect to the number of
experiments. Due to the huge number of genes and the intricacy of biological
data, clustering represents a gainful exploratory technique for analyzing
Microarray data. The aim of clustering is to allocate objects to the adequate
groups or clusters. On one hand, the objects belonging to the same cluster are
more identical to each others. On the other hand, objects from dissimilar
clusters are as unalike as possible. In the present work, the major goal is to
extract automatically the number of clusters in the lung cancer Microarray
dataset. In fact, a clustering technique based on Adaptive Resonance Theory is
used; without any prior information about the number or the form of the clusters
behind the processed data. The chosen form of Adaptive Resonance Theory
architectures is ART2, which quickly self-organizes categories of pattern
recognition in response to arbitrary presented sequences of both analog or
binary input patterns [ ]. The proposed approach was simulated on raw data and
reduced data, using the PCA technique. The efficiency of the applied method was
evaluated by measuring the performance of the classifiers against lung cancer
Microarray data. |
Keywords: |
Microarray technology; Clustering; Microarray Data; ART2 |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
TAGUCHI MODELING WITH THE INTERACTION TEST FOR HIGHER DRIVE CURRENT IN WSIX/TIO2
CHANNEL VERTICAL DOUBLE GATE NMOS DEVICE |
Author: |
K.E. KAHARUDIN, F. SALEHUDDIN, A.S.M. ZAIN, M.N.I.A. AZIZ |
Abstract: |
This paper presents a study in which Taguchi method has been utilized to
increase the drive current (ION) in the WSix/TiO2 Vertical Double Gate NMOS
Device. The performance of the device is evaluated in term of its highest drive
current (ION) value. Initially, the Vertical Double Gate NMOS device is
virtually fabricated and characterized by using both ATHENA and ATLAS modules of
SILVACO TCAD tools. The L12 orthogonal array, main effects, signal-to noise
ratio (SNR) and analysis of variance (ANOVA) are utilized in order to analyze
the effect of process parameter variations on the drive current (ION). The
interaction between the process parameters are also investigated by using L8
orthogonal array of Taguchi method. Based on the results of the analysis,
source/drain (S/D) implant energy has been identified as the most dominant
process parameter in which it has contributed 90% of factor effects on SNR. The
highest possible value of drive current (ION) after the optimization and the
interaction test is 2859.7 µA/µm. |
Keywords: |
ANOVA, Drive Current, NMOS, SNR, Taguchi method |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
ACQUISITION DEVICES IN INTERNET OF THINGS: RFID AND SENSORS |
Author: |
Anouar DALLI, Seddik BRI |
Abstract: |
Internet of things (IoT) will gradually change our life. IoT is finding a wide
range of applications in various domains, including healthcare, industrial and
production monitoring, control networks and many other fields. Evolution of IoT
is based the constant development of sensors and RFID, this paper presents some
considerations for using of these technologies. The IoT architecture consists of
three main layers, perception layer, network layer and application layer. RFID
and sensor are most important technologies in acquition layer. This paper
present considerations to use RFID and sensors in an IoT system and define a set
of requirement for deployment of this technologies in IoT environment. Finally,
the paper outlines many challenges for IoT which we target to address in the
near future. |
Keywords: |
Internet Of Things, RFID, Sensors, Acquisition Layer,Tags. |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
MEDIA RELATION BASED AUTOMATIC CONTENT GENERATION METHOD ON SOCIAL P2P NETWORK |
Author: |
KYUNGWON KIM, SAIM SHIN, JONGSEOL LEE, TAE-BEOM LIM, KYOUNGRO YOON |
Abstract: |
Existing social media services are aimed at text based messages and information
sharing. Recently, changes in the trend of sharing visual content using a social
media service. Users may utilize various visual contents in the social group
they belong, can create a new content for their interests.
In this paper, we propose a method to generate a media content automatically
using information of media relation. We also design the MC (Media Container) for
describing relationship among the media contents, and present a mechanism for
combing media contents on social P2P network. The characteristics of social
media, new content will continue to be generated, deleted and modified. Thus,
the automatically generated media content does not reflect the newly added
content for the same interest. In order to supplement these problems, we define
the MC scheme to describe information of relationship among the contents using
XML format, present the method for dynamically generating media contents with
the latest contents which are reflected the user's interest. And through the
development of the proto-type application, verify the method for automatic
content generation using the MC is defined in this paper. |
Keywords: |
Auto-generated multimedia content, P2P Network, Social network, Media container,
Media relation description |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
IMPLEMENTATION AND RECONFIGURATION OF BASIC DIGITAL MODULATION DESIGN MODELS |
Author: |
B.K.V. PRASAD, ,R. SAI PRIYA |
Abstract: |
In modern communication systems the independent modulation and demodulation
techniques is done using proper signal detection schemes and prominent receiver
structure. The implementation of BPSK ,FSK, ASK modulation and demodulation
techniques are design using Simulink in system generator module which is
transferred into Xilinx core and undergoes changes using system generator
module. The modulated signals obtained from these simulations are analogized
with the obtained signals after interfacing and programmed using an FPGA. The
FPGA was programmed with the help of ARM processor to compile the bit files to
select the required modulation based on our requirement that has best channel
support. The interface is done between the controller and spartran-3e FPGA using
JTAG. The XSVF format and synopsis programmed files are stored in the SD-card of
the microcontroller. The HyperTerminal displays the output corresponding to the
selected modulation. The optimum modulation is selected based on available
bandwidth, bit-error-rate and signal to noise ratio. Hence, Among available
tools for FPGA design, System Generator is a system-level modeling tool that
provides, system complexity, power efficiency, better quality of service
,bandwidth efficiency and, more secure, cost effectiveness, reliable and
efficient compared to the analog communication. |
Keywords: |
Xilinx, BPSK (Binary phase shift keying), ASK(Amplitude Shift Keying),
FSK(Frequency Shift Keying), Simulink, System Generator, FPGA (Field
Programmable Gate Array). |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
OPTICAL NETWORK TEST AND TROUBLESHOOTING FOR OPTICAL FIBER NETWORK |
Author: |
ASWIR PREMADI, ASNAL EFFENDI, ANTONOV BACHTIAR |
Abstract: |
This paper presents an experimental study for optical fiber network that uses
1550 nm and 1625 nm wavelength band light. We designed the system and network
test-bed to measure optical power level or loss of optical power of each type of
device or optical components in the Lab Network of ITP by using an Optical Time
Domain Reflectometer (OTDR). The prototype of the device is fabricated and which
achieves the target characteristics and reliability. In addition, it is
confirmed that the prototype could detect fiber fault at 10.5222 km with system
loss 18.21 dB within 13 minutes by setting the acquisition parameters in OTDR
module. |
Keywords: |
Fiber Failure, OTDR, Optical Network, Optical Switching, FTTH |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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Title: |
ANALYSIS AND METHODS TO TEST CLASSIFICATION OF NORMAL AND PATHOLOGICAL HEART
SOUND SIGNALS |
Author: |
RIMULJO HENDRADI, 8ACHMAD ARIFIN, HIRO SHIDA, SUHENDAR GUNAWAN, MAURIDHI HERY
PURNOMO, HIDEYUKI HASEGAWA, HIROSHI KANAI |
Abstract: |
An acute shortage of cardiologists and many rural clinics were run by nurses in
Indonesia. We proposed to develop of a screening technique based on artificial
intelligence that classifies of normal and pathological heart sound signals of
human subjects due to signs important and symptoms for heart diagnosis based on
knowledge of auscultation experts. Heart sound signal analysis system consisted
of three stages. Firstly, preprocessing. Secondly, feature extraction with
respect to the cardiac cycle based on wavelet analysis to differentiate normal
and pathological heart sounds. Feature reduction using PCA was also carried out
to reduce the dimension of the heart sound feature vectors for classification.
Thirdly, three classifiers: ANN MLP-BP, FCM clustering and HCM clustering to
classify normal, systolic murmur, diastolic murmur, and continuous murmur,
respectively. The performance of each classifier was evaluated with statistical
validation method. From our experimental results, the three classifiers that
showed significant potential in their use as an alternative diagnostic tool were
compared. The ANN achieved the best performance as an automated classifier
rather than FCM and HCM methods. Its performance was 100% for sensitivity,
specificity, and accuracy, respectively, of input 20,000 features. Furthermore,
for input 300 features, the performance was 98.90%, 99.37%, and 99.03% for
sensitivity, specificity, and accuracy, respectively. The heart sound signal
analysis system was suitable to classify of normal and pathological cases. The
proposed method was considered very important for objective screening and very
useful as an alternative diagnostic tool that complies with the requirements for
rural clinics. We hoped that the method would be beneficial in study of
auscultatory technique for medical students. Surrogate data modeling of
pathological heart sounds signals as an alternative tool of the heart sound
simulator and for classification purpose was further study. |
Keywords: |
Wavelet Analysis, Principal Component Analysis (PCA), Artificial Neural Network
Multilayer Perceptron Back Propagation (ANN MLP-BP), Fuzzy C-Means (FCM)
Clustering, Hard C-Means (HCM) Clustering |
Source: |
Journal of Theoretical and Applied Information Technology
15th August 2016 -- Vol. 90. No. 1 -- 2016 |
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