		FeedBack \| Contact Us \| Links \| Site Map

Welcome to Journal of Theoretical and Applied Information Technology

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).

Journal of Theoretical and Applied Information Technology
August 2013 | Vol. 54 No.1

Title:	FUZZY LOGIC BASED VOLTAGE AND FREQUENCY OF A SELF EXCITED INDUCTION GENERATOR FOR MICRO HYDRO TURBINES FOR RURAL APPLICATIONS
Author:	C.KATHIRVEL, DR. K. PORKUMARAN
Abstract:	In this paper, a standalone electric generating system for remote locations is discussed. A typical micro hydro site layout and photograph which shows how the hydro power can be extracted is given. The three phase induction motor is used as a generator for producing three phase output by providing excitation through three capacitors connected in shunt. The design of the capacitor in a simple way is shown. To consume the excess power in the system an Electronic Load Controller (ELC) is used which will maintain the voltage and frequency within limits. The selection of components for ELC with the chosen device ratings is tabulated. Simulation was done on Matlab/Simulink using the Fuzzy Logic Controller. The membership functions and rules of the fuzzy controller are presented. The various models with the output waveforms are represented and discussed. It is shown that when the ELC is used, the output voltage and frequency remains within the limits when the load is changed from 300W to 600W. The experimental setup uses a separately excited DC motor coupled to a 1 H.P squirrel cage induction motor running at a speed above synchronous speed of the induction motor. Circuit diagrams, ratings and photographs of the experimental setup are provided. Drawbacks of the discussed system are enumerated and possible solutions and enhancements are briefed.
Keywords:	Fuzzy Logic, SEIG, Micro hydro, Stand alone, Excitation capacitor, ELC
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	OPTIMIZATION OF VERTICAL HANDOFF DECISION PROCESS FOR HETEROGENEOUS WIRELESS NETWORKS
Author:	T.VELMURUGAN, Dr.SIBARAM KHARA
Abstract:	The most common method used for Vertical Handoff (VH) is the Strongest Signal First (SSF) method. In this technique, when there is a choice of multiple attachment points, the one that gives the Mobile Node (MN) the strongest signal is chosen. While it is simple and effective, the SSF method does not consider factors such as traffic load in the network, battery lifetime of the MNs and the cost of handoff. In this paper, we propose an optimized handoff decision algorithm that balances the load across all the attachment points, maximizes the collective battery life of the MNs and reduces the cost of handoff. We focus on the handoff between WLAN and Cellular Network.
Keywords:	WLAN, Cellular Network, Mobile Node, Vertical Handoff, Load balancing, Received Signal Strength (RSS), quality of service(QoS).
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	THE CONSTRUCTION OF A VISITOR NUMBER FORECASTING MODEL FOR THE SHIHMEN RESERVOIR RECREATION AREA USING ARTIFICIAL INTELLIGENCE TECHNOLOGY
Author:	HAN-CHEN HUANG
Abstract:	Visitor number is an important reference for recreation area managers when developing tourism and marketing plans, and recreation area managers must be able to precisely forecast visitor numbers to possess sufficient information for establishing management strategies and plans. Developing an effective and accurate visitor number forecasting model can allow managers to respond in advance and adjust operating and development directions accordingly. Consequently, this study used an artificial neural network (ANN) to establish a visitor number forecasting model. The results of verification using actual data indicated that the absolute relative error (ARE) of the model developed in this study was 17.6565% and the correlation was 0.773. These results show that the model is highly accurate for forecasting visitor number.
Keywords:	Recreation Area, Tourism, Forecasting, Artificial Neural Network, Visitor Number
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	DESIGN OF GROUP HIERARCHY SYSTEM FOR MULTICAST COMMUNICATION
Author:	R. VARALAKSHMI, Dr. V. RHYMEND UTHARIARAJ
Abstract:	Secure and reliable group communication is an active area of research. Its popularity is fuelled by the growing importance of group-oriented and collaborative applications. The central research challenge is secure and efficient group key management. The present paper is based on the Design of Group hierarchy system for multicast communication using the most popular absolute encoder output type code named Gray Code. The focus is of two folds. The first fold deals with the reduction of computation complexity which is achieved in our protocol by performing fewer multiplication operations during the key updating process. To optimize the number of multiplication operations, the Fast Fourier Transform (FFT), divide and conquer approach for multiplication of polynomial representation of integers, is used in this proposed work. The second fold aims at reducing the amount of information stored in the Group Center and group members while performing the update operation in the key content. Comparative analysis to illustrate the performance of various key distribution protocols is shown in this paper and it has been observed that this proposed algorithm reduces the computation and storage complexity significantly.
Keywords:	Multicast Group Key Management, Group Hierarchy System, Fast Fourier Transform, Polynomial Integer Multiplications, Computation Complexity, Storage Complexity.
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	AUTOMATION OF TWO SUB-ASSEMBLIES IN 3-Ф LOW VOLTAGE CAPACITOR MANUFACTURING
Author:	ROMIL D GANDHI, AMUTHA PRABHA N.
Abstract:	In this paper, the aim is to automate two of the sub-assemblies involved in the manufacturing of 3-Ф low voltage capacitors. The vacuum heat treatment process and the reactor addition process while element testing are the sub-assemblies which are intended to be automated. The vacuum heat treatment process is presently manual and when the unloading of elements is to be done is unknown. So, there is a need to automate this process in order to save precious time. Also, the automation of the element testing process is to be done in order to comply the element in accordance with the international standards in a faster and efficient way. Also during this process, the automatic addition and selection of the reactor for the power factor improvement of the element. Using Programmable Logic Controllers, the respective automations are achieved.
Keywords:	Automation, Programmable Logic Controller, Power Factor Correction, Low Voltage Capacitor Manufacturing, Ladder Logic
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	PETRI NET MODEL OF ERP BUSINESS PROCESS VARIATION FOR SMALL AND MEDIUM ENTERPRISES
Author:	RIYANARTO SARNO, BANDUNG ARRY SANJOYO, IMAM MUKHLASH, HANIM MARIA ASTUTI
Abstract:	In addition to various benefits to Small and Medium Enterprises (SMEs), the application of ERP system for SMEs still encounters a quite number of challenges. One of the challenges is such a great number of variations of the business needs among the SMEs. The Moreover, ERP business processes in SMEs often change due to any change in business needs and technological advancements. To cope with these challenges, it requires a development of ERP systems which is reliable to meet diverse varieties in business processes in each of its modules. In order to analyze various models in the business processes, it calls for a business process modeling. This paper discusses about a business process modeling by means of Petri Net. The modeling emphasizes on aspects of business process analysis, i.e.: a modeling capable of verifying and analyzing the performance of business processes at present. The analysis on business process can adopt two approaches, namely Matrix Algebra and Structure Analysis.
Keywords:	Petri Net, ERP Business Process, Business Process Verification, Reachability Analysis, Web Services
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	SURVEY ON AN EMBEDDED SYNCHRONIZED DAQ USING ARM AND FPGA MODULE
Author:	KUMARESAN N, SUGANTHI J
Abstract:	Data acquisition system plays an important role in the field of modern technology. Often Data acquisition system is abbreviated as DAS (or) DAQ. The idea behind the DAQ is to sample the data which represents real-time conditions and to convert it in a digital form in which computers and processor can manipulate it. Each application has its own design and its structure. Hence in this paper, a survey of an RT Data acquisition system has been presented. DAQ is capable of carrying around 300 channels of RT DAS, a static test facility for on board systems, high speed acquisition and redundant systems. At present, different application in DAQ software is developed using the LabVIEW for real-time acquisition, analyzing and to display.
Keywords:	Data Acquisition, FPGA, Embedded System, Real-Time System, ARM Controller
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	GENETIC ALGORITHM AND PROGRAMMING BASED CLASSIFICATION: A SURVEY
Author:	DHARMINDER KUMAR, SUNITA BENIWAL
Abstract:	Classification is the process of finding a model or a function that describes and distinguishes data classes and concepts, for the purpose of being able to use the model to predict the classes of objects whose class label is not known. The process of data analysis becomes time consuming and tedious as volume of data increases. So to make the process of data classification faster, soft computing techniques have been applied. Great deal of work has been done in the area of classification using evolutionary techniques. This survey gives an insight into the work done on classification using genetic algorithms and genetic programming and their applications in different problems and areas.
Keywords:	Classification, Genetic algorithm, Genetic programming, Fitness function
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	A CONCEPTUAL FRAMEWORK OF FINANCIAL INFORMATION SYSTEMS TO REDUCE CORRUPTION
Author:	ALI BDULBAQI AMEEN, KAMSURIAH AHMAD
Abstract:	Financial Information Systems (FIS) is an integral part of business and is fundamental to its stability, sustainability, and growth. In recognition of the importance of FIS, various countries have started to invest massively in such a system. The World Bank has financed several projects worth billions of US dollars, which have been designed with a better focus on the quality of information to reduce the risk of fraud and improve system reliability. This paper aims to develop a conceptual framework that examines FIS effectiveness in reducing corruption in the public sector. The research approach draws on extant literature in financial information strategies, information systems quality, strategic information systems planning, and international anti-corruption strategies to identify determining factors of information quality, system quality, service quality, FIS characteristic effectiveness, and financial corruption reduction. Results of the literature review suggest 19 propositions and 5 main factors grouped into determinants, including information systems quality, information quality and service quality. Linking financial corruption reduction with anti-corruption strategy, the proposed framework adopts the anti-corruption strategy four-perspective approach to examine the impact of increasing transparency, increasing accountability, decreasing discretion, and low enforcement. FIS characteristic dimensions in this research comprise monitoring, auditability, tracking, and controlling. Originality/value: The framework provides a starting point for researchers and practitioners to further investigate the use of FIS in governance. For researchers, the framework clarifies the determining factors that can successfully enhance the quality of FIS and the impact of these systems on financial corruption reduction through proposed relationships. For practitioners, the framework can be used to gain insights into the contributing factors of information systems quality and its effectiveness in reducing corruption.
Keywords:	Financial Information Systems, System Quality, Information Quality, Service Quality, FIS Characteristic, Corruption Reduction
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	CONGESTION BASED ROUTE RECOVERY TECHNIQUE FOR MANET
Author:	DEVI .M AND, V.RHYMEND UTHARIARAJ
Abstract:	In mobile adhoc network (MANET), the previous work of the authors considered route recovery technique based on route failures alone and doesn’t consider the packet drops due to congestion. The congestion is likely to occur when incoming traffic exceeds the network capacity which results in increased delay and packet loss. In order to overcome these issues, in this paper, congestion detection and recovery technique is proposed in mobile ad hoc network. In this technique, each node estimates the parameters such as queue length, data rate, and medium access control (MAC) contention. The upper and lower limit of these parameters is compared and node is marked with the congestion status such as normal, medium or high level. When data is to be transmitted from the source to destination, the intermediate nodes along the path verify its congestion status. If the congestion status of any one node is high or congestion status of more than one node is medium, a warning message will be sent to the source. The source then selects the alternate congestion free path for data transmission. By simulation results, it is estimated that the proposed technique reduces the packet drop due to congestion and increases the packet delivery ratio.
Keywords:	Mobile Ad Hoc Network (MANET), Medium Access Control (MAC), Congestion Detection, Route Recovery Technique
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	AUTOMATED SEGMENTATION OF BRAIN MR IMAGES BY COMBINING CONTOURLET TRANSFORM AND K-MEANS CLUSTERING TECHNIQUES
Author:	ARSHAD JAVED, WANG YIN CHAI, NARAYANAN KULATHURAMAIYER, MUHAMMAD SALIM JAVED, ABDULHAMEED RAKAN ALENEZI
Abstract:	Segmentation is usually conceived as a compulsory phase for the analysis and classification to the field of medical imaging. The aim of the paper is to find a means for the segmentation of brain from MR images by technique of combining Contourlet Transform and K-Means Clustering in an automatic way. De-noising is always an exigent problem in magnetic resonance imaging and significant for clinical diagnosis and computerized analysis such as tissue classification and segmentation. In this paper Contourlet transform has been used for noise removal and enhancement for the image superiority. The proposed technique is exclusively based upon the information enclosed within the image. There is no need for human interventions and extra information about the system. This technique has been tested on different types of MR images, and conclusion had been concluded.
Keywords:	Image Segmentation, Silhouette, Laplacian Pyramids (LP), Directional Filter Banks (DFB), Means, SNR (Signal To Noise Ratio), MSE (Mean Squared Error)
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	ARTIFICIAL INTELLIGENC E TECHNOLOGY IN TRAVEL AGENCY OPERATING REVENUE FORECASTS
Author:	HAN-CHEN HUANG
Abstract:	The state of the economy has a great impact on the tourism industry; therefore, the management of a travel agency requires good financial revenue and expenditure management. Otherwise, travel agencies have difficulties surviving in a highly competitive market. Establishing an effective and accurate revenue forecasting model can enable travel agencies to predict possible financial crises, providing operators with time to react and adjust their management direction. This study used an artificial neural network (ANN) to establish an operating revenue forecasting model. According to the actual data verification results, the model presented in this study had 12.257% absolute relative error (ARE). This indicated that this model has an accurate forecasting ability and can provide reliable and efficient reference data for operators.
Keywords:	Travel Agency, Financial Revenue, Forecasting, Artificial Neural Network, Operating Revenue
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	CAPACITY ENHANCEMENT OF MC-CDMA SYSTEM THROUGH RECEIVER PHASE ROTATED CONJUGATE ICI CANCELLATION WITH ITERATIVE CFO AND IQ IMBALANCE ESTIMATION AND COMPENSATION
Author:	S.CHITRA, N.KUMARATHARAN
Abstract:	The ever increasing demand for very high data rate multimedia services such as audio, video, image and data requires the technologies which make use of the available electromagnetic resources in the most intellectual manner. Multi-carrier code division multiple access (MC-CDMA) is one of the best techniques to meet the requirements of next generation wireless mobile communication systems. MC-CDMA system combines the benefit of both orthogonal frequency division multiplexing (OFDM) technique and code division multiple access scheme (CDMA). It offers high spectral efficiency, high data rate, low transmit power, lower implementation complexity, large system capacity and narrowband interference rejection capability. Direct conversion receivers in multi-carrier systems are very sensitive to carrier frequency offset (CFO), gain and phase offsets called IQ imbalances. CFO leads to loss of orthogonality among the subcarriers resulting in intercarrier interference (ICI). IQ imbalance will cause severe degradation in the detection accuracy. To reduce the ICI and to improve the demodulation accuracy, a receiver phase rotated conjugate cancellation (RPRCC) using joint iterative CFO& IQ imbalance estimation and compensation algorithm is proposed in this work. Simulation results show that the proposed method provides better carrier to interference ratio (CIR) and bit error rate (BER) performance compared to phase rotated conjugate cancellation (PRCC) without CFO and IQ compensation and conventional conjugate cancellation (CC) techniques.
Keywords:	CFO, ICI, IQ imbalance, MC-CDMA, RPRCC
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	PREDICTION OF STOCK PRICE USING ARTIFICIAL NEURAL NETWORK: A CASE OF INDONESIA
Author:	TOGAR ALAM NAPITUPULU, YOHANES BUDIMAN WIJAYA
Abstract:	Artificial Neural Network (ANN) has been widely used in many application because of its ability to solve non-parametric problems. ANN is also recognized as a good and widely used tool in forecasting stock prices. Traditionally stock forecasting in Indonesia usually used time series analysis. This paper compared the stock forecasting result of ANTM (PT Aneka Tambang) using ANN and that of Autoregressive Integrated Moving Average (ARIMA). The results of the study showed that forecasting using ANN method has smaller error than ARIMA method. been developed for different hybrid power system configurations for tuning the proportional-integral controller for SVC. Transient responses of different autonomous configurations show that SVC controller with its gained tuned by the ANNs provide optimum system performance for a variety of loads.
Keywords:	Artificial Neural Network, ARIMA, time-series, stock forecasting
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	ENHANCED STRATEGY OF DEPLOYMENT FIREWALL POLICIES
Author:	F.Bezzazi, A.KARTIT, M. EL MARRAKI, D.ABOUTAJDINE
Abstract:	Firewall is one of the most widely utilized component on any network architecture, since that a deployment is a very important step to turn the initial policy to a target policy. This operation must be done without presenting any risks or flaws. Much research has already addressed the specification of policies, conflict detection and optimization, but in our paper we will focus on researches that talk about strategies for the security of policy deployment, some researchers have proposed a number of algorithms to solve this problem, we will discuss one of these algorithm then we propose an amelioration of this strategy. Our experimental results show that the new version of algorithm is very fast and can be used safely even for deploying very large policies.
Keywords:	Policy Deployment (PD), Firewall Policy (FP), Network Security (NS).
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	PERFORMANCE ANALYSIS OF GEOGRAPHIC ROUTING PROTOCOLS IN HIGHLY MOBILE AD HOC NETWORK
Author:	VARUN G MENON, JOE PRATHAP P M
Abstract:	Routing in Mobile Ad Hoc Networks (MANETs) has always remained a challenging task due to its dynamic topology and lack of centralized control. Several routing protocols have been proposed over these years starting with the traditional topology based protocols to the geographic routing protocols. The research over these years shows that the geographic routing protocols like Greedy Perimeter Stateless Routing (GPSR) obtains much better performance compared to all other previous routing protocols. The aim of this research paper is to survey and analyse the performance of various geographic routing protocols in highly mobile ad hoc networks and to perform a comparative analysis using their advantages and disadvantages.
Keywords:	Dynamic Topology, Geographic Routing, Location Information, MANET, Routing Protocols.
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	THE IMPLEMENTATION OF MULTI-ATTRIBUTE APPROACH IN DECISION MAKING FOR DEFENSE SEA REGION MODELS
Author:	PUDJI SANTOSO, KETUT BUDA A, MASROERI, M. ISA IRAWAN, AAB. DINARIYANA
Abstract:	This paper discusses the concept of decision-making on the model of territorial sea defense system to resolve cases of violations in Indonesia's marine territory by foreign vessels, illegal fishing and illegal logging. The violation also shows that Indonesia has not fully monitored its marine areas by the patrol ships. The lack of Navy patrol boats owned causes mutual-conflicst in decision-making. From the three zones of the qualitative attributes, relative weight is searched by the Analytical Hierarchy Process (AHP). Then, the value of the Relative weight is converted to normalize relative weight, basic probability assignment, and the total probability assignment, so the degree of preference is obtained from the qualitative attributes. Then, the preference degree of qualitative attributes is combined with the preference degree of the quantitative attributes with the entropy method resulting a rank that shows the optimal alternatives deployment of nine zones of base stations. The result of calculation using the entropy method shows that the highest entropy value is 0.89.
Keywords:	Zones Re-Evaluation, AHP, MADM, Mutual Conflict, Territorial Defense
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	ARCHITECTURE OF A TELEMEDICINE SYSTEM FOR MONITORING SICK HEART REMOTELY
Author:	BENSLIMANE MOHAMED, ANAS BOUAYAD, ABDELALI IBRIZ, HARTI MOSTAFA
Abstract:	The monitoring of the vital functions of human organism could be in the future facilitated by swallowing micro-sensors or implementing them under the skin. Multi-sensor capsules or micro-cameras that can be swallowed already exist, by which we can transmit images from inside the human body without surgery (with a battery life of 24 hours). This paper presents our first reflection on the development of an application based sensor networks in the field of telemedicine, especially the monitoring the status of cardiac patients remotely. The main objective is to identify constraints and adaptive algorithms for synchronization and sharing resources in applications based sensor networks.
Keywords:	Network Sensors, Telemedicine, electrocardiograph (ECG), ZigBee TinyOS, nesC, Wireless Personal Area Networks (WPANs).
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	DATABASE INTEGRATION: IMPORTANCE AND APPROACHES
Author:	IBRAHIM ALMAHY, NAOMIE SALIM
Abstract:	Database integration is a multistep process of finding similar entities in two or more databases to create a non-redundant, unified view of all databases. Database integration has become an active area for research due to increasing of information resources with the need of users and applications to integrate data from these different sources. This paper discusses the role of data integration and the fields that require it, problem of integration and the processes of integration. Finally it presents the current methods used in database integration in a form of graph that classified the approaches in clear manner.
Keywords:	Database integration; integration approaches; schema matching
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	AUTOMATED RETENTION SCHEDULES: THE IMPORTANCE OF ITS IMPLEMENTATION BY UNIVERSITIES IN MALAYSIA
Author:	YOUSEF I. ABUZAWAYDA, ZAWIYAH MOHD YUSOF, MOHD AB AZIZ
Abstract:	Records are a rich source of information often receive low priority and not properly addressed in preventing Organisations from risks. It is common that organisations do dispose off records unintentionally or before the records reach its maturity due to the absence of the retention schedule. As organisations with prevailing data and information, universities ought to practice retention schedules to minimize the problems of losing vital information, thus protecting universities from the risks of not being able to produce evident especially when involve in litigation. Automated records retention schedule (ARRS) is paramount as universities are now electronically operated. This study seeks to find out the implementation of automatic retention schedule in universities in Malaysia. The study uses a qualitative research approach with interview as technique to gather data. Findings reveal that lack of training, lack of policies which hinder universities in Malaysia to efficiently embark on electronic records management.
Keywords:	E-Records, Records Management, Records Retention, Retention Schedule
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	A FRAMEWORK BASED PROTOCOL FOR A BETTER INTEROPERABILITY AMONG SERVICES IN E-GOVERNMENT
Author:	ASSIA TEBIB, MAHMOUD BOUFAIDA
Abstract:	In order to improve the efficiency and quality of services provided to citizens (and/or businesses), Public Administrations (PAs) are constantly trying to turn their services into electronic-oriented ones (e-Government). Achieving interoperability and security in this area is a challenging task. In this paper, we define a middleware to ensure the interoperability of the information systems in the domain of e-government, while guaranteeing some security properties. We propose an applicative protocol integrated in the middleware. A case study was developed to validate the suggested framework.
Keywords:	E-Government, Interoperability, Services, Middleware, Protocol
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	SEMANTIC BASED INFORMATION RETRIEVAL FOR WEB PAGES
Author:	R.LENIN BABU, Dr.S.VIJAYAN
Abstract:	Content stored/shared on Web and document repositories has increased greatly leading to problems in locating required information from massive volumes. Progress in retrieving required information was achieved with search engine technology development that could collect, store and pre-process information globally, responding to users’ needs instantly. Use of text classification techniques ensures web page classification. Presently, semantics are the basis for content description and query processing techniques required for Information Retrieval (IR). This paper presents an approach for information retrieval from web pages, based on the proposed extraction methods. AdaBoost algorithm is used to obtain and classify features and BF tree with the proposed feature extraction ensures high classification accuracy.
Keywords:	Information Retrieval (IR), Semantics, Latent Semantic Analysis (LSA), AdaBoost
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text

Title:	MEMORABILITY FEATURES OF DRAW-BASED GRAPHICAL PASSWORDS
Author:	OBASAN ADEBOLA O., NORAFIDA ITHNIN, CHUA SIEW WENG
Abstract:	Password authentication has become a widely recognized element of computer security practices, where human users are proven or confirmed as legitimate users for access to secure systems. Every user needs to recall its password correctly before access can be granted to an intended system. Remembering the secure password chosen from mixture of random alphanumeric and non-alphanumeric characters is an everyday problem for all users because of individual memory limitation. In an effort to solve this problem, users tend to choose insecure passwords that are making most systems vulnerable to many attacks. Instead of using secure-but-difficult to remember or unsecure-but-easy to remember alphanumeric password, now graphical password which works just by clicking with a mouse or stylus could be used for user authentication. Graphical password is able to solve the problem of alphanumeric password being hard to remember. The main objective of this paper is to provide a comprehensive survey of array of draw-based graphical password schemes and capture the memorability of each scheme in a table. We highlight what makes images memorable and recommend that choice of background image in a scheme could affect how memorable it is because not all images are equal in memory.
Keywords:	Graphical Passwords, Password Space, Authentication, Images Memorability
Source:	Journal of Theoretical and Applied Information Technology August 2013 -- Vol. 54. No. 1 -- 2013
Full Text