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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 July 2012 | Vol. 41 No.1

Title:	AN IMAGE ENCRYPTION APPROACH USING STREAM CIPHERS BASED ON NONLINEAR FILTER GENERATOR
Author:	BELMEGUENAÏ AÏSSA, DEROUICHE NADIR, REDJIMI MOHAMED
Source:	Journal of Theoretical and Applied Information Technology pp 001 - 010 Vol. 41. No. 1 -- 2012
Abstract	In this work a novel image encryption scheme using stream cipher algorithm based on nonlinear filter generator is considered. In this work a novel image encryption scheme is proposed based on stream cipher algorithm using pseudorandom generator with filtering function. This algorithm makes it possible to cipher and decipher images by guaranteeing a maximum security. The proposed cryptosystem is based on the use the linear feedback shift register (LFSR) with large secret key filtered by resilient function whose resiliency order, algebraic degree and nonlinearity attain Siegenthaler’s and Sarkar, al.’s bounds. This proposed scheme is simple and highly efficient. In order to evaluate performance, the proposed algorithm was measured through a series of tests. Experimental results illustrate that the scheme is highly key sensitive, highly resistance to the noises and shows a good resistance against brute-force, statistical attacks, Berlekamp-Massey Attack, algebraic attack.
Keywords	Cryptosystem, Decryption, Image correlation, Image encryption, key Stream, Nonlinear Filter Generator, Stream Cipher
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Title:	USER ENGAGEMENT ATTRIBUTES AND LEVELS IN FACEBOOK
Author:	FIRDAUS BANHAWI, NAZLENA MOHAMAD ALI, HAIRULIZA MOHD JUDI
Source:	Journal of Theoretical and Applied Information Technology pp 011 - 019 Vol. 41. No. 1 -- 2012
Abstract	This paper describes our work in performing a Factor Analysis (FA) to measure engagement attributes in Facebook and performing a Discriminant Analysis (DA) to determine the relationship between engagement levels and Facebook activities. We adapted the measuring user engagement scales from previous works that were performed in an online shopping environment. By using factor analysis, we discovered four attributes of engagement while interacting with social network applications, namely Focus Attention, Novelty & Endurability, Perceived Usability, and Aesthetics. We also adapted social networking activity scales from other previous works, in order to connect with engagement levels (recoded from the four engagement attributes) using a discriminant analysis. Results indicated that Social Connection was the most engaging activity, followed by Photographs, Status Updates, Social Investigation, Social Network Surfing, and Contents. Over a two week period, 103 Facebook users responded to the administered questionnaires. The findings also showed that respondents preferred using full access devices, compared to limited access devices, to access and interact with social network applications.
Keywords	User Engagement, Social Networking Application, Factor Analysis, Discriminant Analysis
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Title:	AN OVERVIEW OF COGNITIVE RADIO ARCHITECTURE:A REVIEW
Author:	S.VENKATESWARI, R.MUTHAIAH
Source:	Journal of Theoretical and Applied Information Technology pp 020 - 025 Vol. 41. No. 1 -- 2012
Abstract	Cognitive Radio (CR) is a technique which is used to improve the utilization of the radio spectrum. It is a software controlled radio that senses the unused frequency spectrum at any time. The main problem in cognitive radio is spectrum sensing. In this paper, the comparison of different techniques for spectrum sensing and transceiver from different perspectives is presented and a new architecture is suggested, which can give a better hardware resources utilization and also spectrum sensing time can be reduced.
Keywords	Cognitive Radio, Spectrum Sensing, OFDM, Transciever
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Title:	SURVEY ON IMAGE PROCESSING IN THE FIELD OF DE-NOISING TECHNIQUES AND EDGE DETECTION TECHNIQUES ON RADIOGRAPHIC IMAGES
Author:	B.THAMOTHARAN, M.MENAKA, SANDHYA VAIDYANATHAN, SOWMYA RAVIKUMAR
Source:	Journal of Theoretical and Applied Information Technology pp 026 - 034 Vol. 41. No. 1 -- 2012
Abstract	Digital Image Processing is the processing on digital images by means of different algorithms. The important steps of image processing are de-noising and edge detection. Images captured by cameras /video cameras have noise due to the electromagnetic and other geographic ,atmospheric conditions, incorrect photo count. Hence removing noises from an image is a challenging task in image processing. Second, edge detection is one of the first steps of feature extraction. Edge detection characterizes the boundaries in the image and thus reduces the amount of data and also filters out the unnecessary information from the image and provides the structural properties of the image. There are many algorithms for both de-noising and edge detection on images. This paper discusses the mean and median filter for de-noising the radiographic images and the different edge detection techniques on radiographic de-noised images and compared them.
Keywords	Cold Trap, PSNR , MSE , Filters, De-noising Spatial and frequency domain,LoG Operator
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Title:	SOFTWARE ENGINEERING REQUIREMENTS PROBLEMS AN INVESTIGATION STUDY IN JORDANIAN CONTEXT
Author:	MOHAMMAD TARAWNEH
Source:	Journal of Theoretical and Applied Information Technology pp 035 - 044 Vol. 41. No. 1 -- 2012
Abstract	This paper presents an overview of the field of requirements engineering (RE). It describes the main areas of RE practice. When requirements practices is good this may lead to accelerate the development of software. The process of defining business requirements birds the stakeholders with shared goals, vision and expectations. In order to increase the accuracy of requirements you have to involve substantial user in establishing and managing the changes to agree upon requirement so emphasizing that the functionality built which enable users make the important business tasks.
Keywords	Requirements Engineering, Requirements analysis, Requirements Management
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Title:	PUZZLE FAST RANDOM BIT ENCRYPTION TECHNIQUE FOR JOINT VIDEO COMPRESSION AND ENCRYPTION
Author:	K. JOHN SINGH, R. MANIMEGALAI
Source:	Journal of Theoretical and Applied Information Technology pp 045 - 050 Vol. 41. No. 1 -- 2012
Abstract	Major issues in video data transfer over the internet are security and speed. For fast transmission over the network, the video data should be compressed before transmission. Joint compression and encryption algorithms employ compression before encryption for secured and fast data transfer over the internet. In this paper, a joint compression and encryption algorithm, Puzzle Fast Random Bit Encryption (PFRBE) algorithm, is proposed. As the proposed solution employs multi-level encryption along with key encryption, it is more secured than existing algorithms. Results obtained are compared with some popular joint compression and encryption algorithms such as Video Encryption Algorithm (VEA) and Real-time Video Encryption Algorithm (RVEA). Our analysis shows that the proposed solution, PFRBE, takes less CPU time and consumes less memory when compared to existing joint compression and encryption algorithms.
Keywords	Video Encryption Algorithm (VEA), Puzzle Fast Random Bit Encryption (PFRBE), Real-time Video Encryption Algorithm (RVEA), Bit Padding
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Title:	A COMPARATIVE STUDY ON ALGORITHMS FOR MOBILITY IN WIRELESS SENSOR NETWORK
Author:	V.VIOLET JULI, J.RAJA
Source:	Journal of Theoretical and Applied Information Technology pp 051 - 059 Vol. 41. No. 1 -- 2012
Abstract	The economical use of sensor network for its maximum coverage depended on the effective location of the sensors with respect to their desired locations. Normally adapted random deployment of the sensors would not result in achieving the objective. Some guided methodology should be incorporated to place the sensors at their intented locations. The algorithms namely Genetic Algorithm and Voronoi Vertex Averaging Algorithm for the above purpose were suggested by the authors which were, in this paper, being reviewed for the performance.
Keywords	Sensor, Network, Deployment, Algorithm, Coverage
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Title:	ANALYSIS OF RELIABILITY OF THE MATHEMATICAL MODEL OF THE SRM
Author:	A. BERDAI, V.VLASENKO , V.TITJUK. , A.EL MOUDDEN
Source:	Journal of Theoretical and Applied Information Technology pp 060 - 067 Vol. 41. No. 1 -- 2012
Abstract	Switched reluctance motors are of simple construction. Along with salient pole stator systems, they include a rotor without conductor or magnet and are therefore the simplest of all electric motor rotors. Its simplicity makes the SRM inexpensive and reliable, along with its capacity at high speed and high torque in relation to inertia. Mathematical modelling of SRMs still constitutes the only real means of studying them in the fields of scientific research and design. In this article, we propose the combined method, which brings together the field-theoretical method approach used for calculation of the magnetic systems of commutated reluctance motors (SRMs) and analysis of electromagnetic processes in electric drive systems using the electrical circuits theoretical method. We then present a few results of the experiment with a type 8/6 SRM in order to validate the simulation method developed.
Keywords	Switched Reluctance Motor, Powersys , Simulink , Combined Method, Experimental Study
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Title:	EMERGING TRENDS IN TRIPLE-PLAY ENABLED INTELLIGENT DSLAM
Author:	V.HARIHARAN, B.ELANGOVAN , M.HEMALATHA
Source:	Journal of Theoretical and Applied Information Technology pp 068 - 074 Vol. 41. No. 1 -- 2012
Abstract	The need for value added and differentiated services such as video-telephony, internet TV .etc in the broad-band access hardware continue to increase rapidly nowadays, so we need to analyze the capabilities of the broad band access network architecture whether it can meet the design challenges for providing triple –play services (e.g. video on demand, voice IP).these services generally consumes very high bandwidth, highly delay sensitive and requires efficient hardware. Most of the service provider based broad band access network has a DSLAM which is a high end network multiplexer; a DSLAM should be completely analyzed based on the following design challenges such as bandwidth scalability, packet scheduling with less complexity, quality of service (QoS) assurance and a good application support. Because implementing triple service in a network needs an intelligent access hardware which adopts itself to meet the requirements. So the ultimate aim of this paper is to focus on the design challenges and the emerging recent trends in triple-play service deployment and how Intelligent DSLAM facilitates itself to meet the challenges in terms of selecting appropriate network processor and aggregation network migration.
Keywords	DSLAM- Digital Subscriber Line Access Multiplexer, Triple-Play Service, Quality Of Service, Network Processors, Aggregation Network, Bandwidth Scalability
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Title:	COMPREHENSIVE ONTOLOGY COGNITIVE ASSISTED VISUALIZATION TOOLS—A SURVEY (2008–2011)
Author:	V. SWAMINATHAN, R. SIVAKUMAR
Source:	Journal of Theoretical and Applied Information Technology pp 075 - 081 Vol. 41. No. 1 -- 2012
Abstract	Comprehensive Ontology is used in different contexts with different authors. Ontology comprehension is a collection of techniques that facilitate the understanding of ontologies. These tools are being applied for further development in various disciplines for better understanding knowledge. These tools commonly use six methods, namely, Indented List, Node-link and tree, Zoomable Visualization, Space-filling, Focus + context or distortion and 3D Information landscapes. The purpose of the work is to present a study on application of these six methods in the development of different kinds of Comprehensive visualization Ontology tools and categorize their characteristics so that it assists in method selection and promotes further future research in the area of ontology visualization. This paper overviews different technology for ontology visualization. It is an attempt to summarize existing literature related to ontology visualization and provide comprehensive cataloguing of existing method characteristics as well as record their strong points and weaknesses in relation with user tasks.
Keywords	Comprehensive Ontology, Ontology Visualization Technique, Cognitive Support, Human Agents
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Title:	EXPERIMENTS OF ZERNIKE MOMENTS FOR LEAF IDENTIFICATION
Author:	ABDUL KADIR, LUKITO EDI NUGROHO, ADHI SUSANTO, P. INSAP SANTOSA
Source:	Journal of Theoretical and Applied Information Technology pp 082 - 093 Vol. 41. No. 1 -- 2012
Abstract	So far, plant identification has challenges for several researchers. Various methods and features have been proposed. However, there are still many approaches could be investigated to develop robust plant identification systems. This paper reports several experiments in using Zernike moments to build foliage plant identification systems. In this case, Zernike moments were combined with other features: geometric features, color moments and gray-level co-occurrence matrix (GLCM). To implement the identifications systems, two approaches has been investigated. First approach used a distance measure and the second used Probabilistic Neural Networks (PNN). The results show that Zernike Moments have a prospect as features in leaf identification systems when they are combined with other features.
Keywords	Zernike Moments, Leaf identification system, GLCM, PNN, City block
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Title:	DESIGN AND IMPLEMENTATION OF COMPUTER CONTROLLED AIRCRAFT (CCA) PROTOTYPE
Author:	JOHN B. OLADOSU AND SAMUEL AJIBOYE
Source:	Journal of Theoretical and Applied Information Technology pp 094 - 097 Vol. 41. No. 1 -- 2012
Abstract	A Computer Controlled Aircraft (CCA) is controlled from a microprocessor with its control and timing circuitry on a single integrated chip. Microprocessor control has been used virtually in all facets of human endeavour. This work builds a prototype CCA as a demonstration of how this type of system is designed and built. A unique feature of this work is the use of a remotely located Software system to control the aircraft, a deviation from the conventional hardwired circuitry in this type of design. The prototype was built from locally made materials. The control software was coded in a high level visual programming language in Windows platform. The unlicensed radio frequency spectrum was used in order to avoid the cost of licensing the operation of the prototype. Our prototype was constructed and subjected to series of test-runs in the presence of our University’s principal officers. The merit of this work is to serve in training
Keywords	Computer Controlled Aircraft, Microprocessor Controlled, Software Aircraft Control, Prototype of Aircraft System
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Title:	AN APPROACH TOWARDS REDEFINING GRANULARITY OF LEARNING OBJECTS FOR EFFECTIVE AND ADAPTIVE PERSONALIZATION
Author:	V.SREE DHARINYA, Dr.M.K.JAYANTHI
Source:	Journal of Theoretical and Applied Information Technology pp 098 - 102 Vol. 41. No. 1 -- 2012
Abstract	Learning Objects (LO) have been used for designing e-learning paradigms. Granularity of learning objects is related with the concept of reusability. The reused learning objects are henceforth used for effective personalization .Personalization based on the learner’s intuitiveness is preferred using preference based and correlation based algorithms. Based on the user preference and learning style with domain ontology, the effective personalization can be attained. The performance measures and evaluation aids in deciding the learner’s effective personalized experience of the system.
Keywords	Learning Objects, E-learning, Learning object repository, Ontology, Granularity, Personalization
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Title:	DESIGN AN OPTIMIZED FUZZY CLASSIFIER SYSTEM FOR URBAN TRAFFIC NETWORK
Author:	EHSAN AZIMIRAD, JAVAD HADDADNIA
Source:	Journal of Theoretical and Applied Information Technology pp 103 - 110 Vol. 41. No. 1 -- 2012
Abstract	Traffic control in large cities is a difficult and non-trivial optimization problem. This paper presents a optimized classifier system using fuzzy logic for recognize and traffic signal control in a single intersection. Also this paper presents preliminary work into designing an intelligent local controller primarily for distributed traffic control systems by fuzzy logic. The idea is to use a classifier system with a fuzzy rule representation to determine useful control rules within the dynamic environment. Results show that the performance of the proposed traffic controller is best and error is very low.
Keywords	Fuzzy Classifier; State-Space Equations; Traffic Signal; Fuzzy Controller
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Title:	FREQUENT ITEMSET MINING WITH BIT SEARCH
Author:	N. VENKATESAN, RAMARAJ
Source:	Journal of Theoretical and Applied Information Technology pp 111 - 121 Vol. 41. No. 1 -- 2012
Abstract	Computer systems are often used to store large amounts of data from which individual records must be retrieved according to some search criterion. Thus the efficient storage of data to facilitate fast searching is an important issue. Frequent pattern mining was first proposed by Agrawal et al. for market basket analysis in the form of association rule mining. It analyses customer buying behavior by finding associations between the different items that customers place in their shopping baskets. Researchers have proposed several algorithms for generating frequent itemsets. Frequent itemsets are found from the dataset through several searching algorithmic approaches. The novel bit search technique is implemented in the existing association rule mining algorithms. Frequent itemsets are generated with the help of apriori based bit search technique is known as Bit Stream Mask Search and eclat based bit search technique is branded as Sparse Bit Mask Search. These two algorithms are implemented in six datasets namely T10100K, T40I10100K, Pump, connect-4, mushroom and chess. These six datasets again run in AprioriTrie and FP-Growth algorithms. All the algorithms are executed in 5% to 25% support level and the results are compared. Efficiency is proved through performance analysis.
Keywords	Association Rules, Frequent Itemset Mining, Bit Search, Bit Stream Mask Search, Sparse Bit Mask Search
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