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International Review on Computers and Software - May  2010 - Papers

 

 

   

 

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International Review on Computers and Software - Papers

 

go to top   Classification Methods based on Pattern Recognition and on Neural Networks for Failure Detection
         by Jihane Ben Slimane Dhifallah, Kaouther Laabidi, Moufida Ksouri Lahmari

 

Abstract - In this article, we propose the use of classification methods for the detection of malfunctioning modes of complex systems. The problem of failure diagnosis is defined, in first place, as a pattern recognition problem, by means of "Support Vector Machines SVM" classifier. Our objective is to classify an observation among a definite number of classes characterizing each a situation either of normal work or of malfunctions. This diagnosis problem will subsequently be processed by probabilistic neural networks with supervised learning. A comparative study between these two methods will then be undertaken in order to prove the advantage of pattern recognition method's performance by SVM over the neural networks as far as failure detection is concerned, in terms of time and calculation.
Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Classification, Pattern Recognition, Neural Networks, Supervised learning, Multi class SVM, PNN, Failure diagnosis.

 


 

go to top   Comparative Study of Interest Point Detectors and Descriptors for Automatic Remote-sensing Image Registration
         by Bouchiha Rochdi, Besbes Kamel
 

Abstract - Automatic image registration is an important process in remote sensing applications. In this paper, we compare the performance of interest point detectors and local descriptors, and we put forward the application of these techniques in the field of remote sensing to readjust images captured by satellite sensors. Many techniques for the detection and description of images' local characteristics have been proposed to register a set of images without user intervention. However, it is unclear which descriptors are more appropriate. The descriptors should be distinctive and at the same time robust to changes in viewing conditions as well as to errors of the detector. In our evaluation, we have separated the detector from the descriptor as their performance depends on the interest point detector used. The detectors are compared according to the repeatability and computation time. Descriptors are compared according to their recall and runtime efficiency and this deals with several geometric and photometric changes. We also propose an extension of the SURF descriptor and show that it outperforms the original method. Furthermore, we observe that the FAST IP detector outperforms the others' detectors and the SURF descriptor outperforms the others' descriptors. Finally, based on these results, the proposed approach for automatic registration of remotely sensed images is presented.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Feature-based registration, Image processing, Remote sensing, Automatic registration.

 


 

go to top   LAT-MAC: A Latency Energy Aware MAC Protocol for Wireless Sensor Networks
         by  Ali Hassoune M., Mekkakia Z.

 

Abstract - The mobile nodes in Ad hoc networks move freely, but their batteries have limited energy. Reducing energy consumption in mobile ad hoc networks and sensors is a major challenge. Several protocols called Energy-aware protocols have been proposed. Another important parameter is the latency. It is a common attribute for most MAC protocols. Its importance depends on real applications. We studied the different Energy-aware protocols, and simulated SMAC protocol as one of the main protocols that save energy. However, SMAC has one main inconvenient which is the latency. We proposed a new Latency Energy Aware Protocol for Wireless Sensor Networks (LATMAC) which solves the problem of energy and latency at the same time. After comparison of LATMAC with SMAC, we can observe its importance and performance.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Energy, sensor, wireless, latency, LATMAC, SMAC.

 


 

go to top   A Case Study of Electrification of Information System in Vocational High School
         by Chien-Yuan Lai, Dong-Her Shih, Hsiu-Sen Chiang, Ching-Chiang Chen

 

Abstract - According to the Internet and the development of information technology. Recently, vocational high school establishes the relevant department of information, and put a large number of manpower and resources to improve the students’ study effects. Thus, the improvement of manpower quality and source of plentiful human resources is a key point and non-ignorant issue as to developing business, country and society. In this study, discusses the performance of electronization in vocational school. It is focus on the operation specialty of vocational school and its inner and outer environment to implement a case study. In order to find out the effects of electronization in vocational school, the author using the way of expert's interview and combined “the efficiency of information system assessment” to measure the efficiency and appraisal of information system function. The result of study reveals, affect electronization in the vocational school related with some key point factors, shown as “ the operation of school “, “ information system “, “ efficiency evaluation”, “ file management “, '”software and hardware facilities “, “external condition”, “human resources “ and “ information management”.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Information system, Electronization, vocational school, network effect diagram.

 


 

go to top   Web Page Mining for Enhancing the Convenience of Cross Group-buying

         by Hsin-Chieh Wu, Toly Chen

 

Abstract - It would be more flexible if every customer can initiate a group-buying project of his/her own for the item he/she personally needs in a convenient way. As a result, there will be multiple group-buying projects for multiple target items at the same time. To this end, several web page mining algorithms are proposed in this study to make every customer easily reach the web page he/she browses for a target item for group-buying. The data of the item will be automatically extracted and uploaded onto a website which then informs every registered user of the group-buying project of this item. Requests for the same item will be combined, and there are always multiple target items on the website for group-buying at the same time. As a result, cross group-buying becomes convenient.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Group-buying, Electronic commerce, Web page mining, Agent, Customer-driven.

 


 

go to top   New Distributed Methodology for Intrusion Detection Based on Multi-agents System at Two Levels

         by D. Raoui, S. Benhadou, H. Medromi

 

Abstract - The development and evolution of computer networks, in terms of number of users and services, are making them more complex and therefore vulnerable to new types of attacks. Given this complexity of attacks, intrusion detection systems, to monitor the activities of a network or a sensitive position and to detect abnormal usage of computer resources are expected to evolve and adapt to change user behavior and evolution of complex networks. To improve and strengthen the mechanism of intrusion detection, we propose in this paper a new distributed methodology, consisting of two levels of analysis based on multi-agent system benefiting both capacities reactive agents and rules and safety procedures to detect predefined complex attacks and their cognitive abilities to detect intrusions that can represented low threats.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Security, Intrusions Detection, MultiAgents System, Analyzer, AUML.

 


 

go to top   Bilingual Text-Based Image Retrieval Using PDA's (BTBIRUP)
         by Amer N. Abuali, Loai F. Al-Zoua'bi , Haifa Y. Abu-Addose, Shaima Y. Hamam

 

Abstract - The aim of this paper project is to provide a powerful combination of information retrieval approaches and the new technology advances (mobile technology). We examined the capabilities of mobile devices and PDA’s in retrieving images based on Text-based image retrieval approach (TBIR) by using their caption which written in Arabic and English languages. The results were promising in helping Arab community in Image Retrieval field.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: CBIR, TBIR, Bilingual Dictionary-based approach, CLIR.

 


 

go to top   A New Approach Based in Mean and Standard Deviation for Authentication System of Face
         by M. Fedias, D. Saigaa

 

Abstract - Face authentication is a significant problem in pattern recognition. The face is not rigid it can undergo a large variety of changes in illumination, facial expression and aging. Principal Component Analysis (PCA) is a typical and successful face based technique which considers face as global feature. In this paper, we developed a new simple method to extract the global feature vector based in the Mean and the Standard deviation (MS) of the image of face. Once the feature vector is extracted, the next stage consists of comparing it with the feature vector of face which is authenticated, and then we calculated the error rates in the two sets of evauation and test for the data base XM2VTS according to the protocol of Lausanne. The experimental results indicated that the extraction of image features is more efficient and faster using MS method than PCA.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Eigenfaces, Face Authentication, Statistical Pattern Recognition, Feature Extraction.

 


 

go to top   Simulation of a Crack in the Weld a Band Drawn from a Tube During the Bending
         by Hamid Djebaili, M. T. Hannachi, H. Zedira

 

Abstract - In this approach, we have tried to describe and apply the test of folding HF induction welded tubes, and its experimental implementation. The testing is carried out at ENTTPP TEBESSA (National Enterprise transformation tubes and flat products). Usually the final products (tubes) are a series of non-destructive (NES) online and offline welding, and of course mechanical destructive testing (CD) (strength, hardness, resilience, folding, flattening, flare, etc..) And metal (Chemical analysis of the material, macro and micrography). The quality and reliability of any final product is highly recommended by customers on the one hand, and continuing competition in the market and technology design another hand, not to mention the mechanical and metallurgical properties of the material used as a parameter that governs the Weldability tubes. For this and in order to hear the application of bend tests, Which applies to the processing of round tubes in other forms, it took four sections welded pipes draft (before drawing hot) and welded pipes finished (after hot drawing and annealing), we The report also found 'health' flared tubes that should not present or crack or tear. The test is modeled on the finite element code (EF) Castem2001.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Folding, Destructive Testing, Draft Tube, Finished Tube, Weld, Finite Element.

 


 

go to top   A Learning Algorithm Considering Derivative Information Into Neural Networks
         by Shuang Wu, Haibin Li

 

Abstract - In this paper, a learning algorithm considering derivative information is proposed for neural networks. Based on backpropagation (BP) algorithm, this algorithm takes the derivative information of the samples into account. Because the partial derivative of the output variable of neural networks to the input variable can be obtained from the weights of the networks, the error between the calculated value and the theoretical value of the partial derivative can be reduced by adjusting the weights of the networks. This algorithm can effectively avoid the over-fitting and improve the generalization capability for the networks. The neural networks considering derivative information has been shown by experimental results to have better generalization performance than BP networks.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Derivative Information, Generalization Capability, Learning Algorithm, Neural Networks.

 


 

go to top   Intelligent Decision Based on Multi Agent System - To Aid Breast Cancer Diagnosis
         by H. Boufera, F. Bendella

 

Abstract - Breast cancer represents one of main causes of death among women in the world. Mammography is the best method of screening for breast cancer because it can show lesions in their initial phases. In this paper, we propose a novel approach to classify breast lesions, despite their benignancy or malignancy. The proposed method is based on cognitive multi agent system to take advantage of decision making of cognitive agents, where each agent represents a particular sub-process of the whole of decision. So, we built an architecture based on cognitive decision theories to take human (radiologist) bounded rationality into account. We describe the use of blackboard to address the problem of control reasoning and the use of ontology that can be beneficial to bring the communication between various agents and to facilite the making decision process.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Diagnosis Aid, Interpretation, Cognitive Multi Agent System, Ontology, Blackboard, Mammography.

 


 

go to top   IP Address Lookup Algorithm using a Dynamic Content Binary Trie
         by Houassi Hichem, Bilami Azeddine

 

Abstract - Internet routers forward a data packet based on the packet destination IP address. To do this, the routers must find the longest matching prefix with a packet destination address in the routing tables. Increasing the size of the Internet network increases the size of the routing tables that complicate the longest matching prefix problem. Several new approaches have been proposed to accelerate this process. Most proposed algorithms based on binary search algorithms such as a binary trie or a binary search tree, however, the binary trie involves many empty internal nodes. In this paper, a new IP address lookup algorithm using a dynamic content binary trie (DCB-Trie) is proposed. The proposed algorithm is based on the principle of exploitation the empty nodes in the binary trie for storing copies of most recently used prefixes. The results of performance evaluation show that our algorithm is efficient in terms of the lookup speed since search can be immediately finished when the input IP address matches a copy of a leaf prefix in an internal node without arrives to a leaf node.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Internet Routers, IP Address Lookup, Binary Trie, Dynamic Content Binary Trie.

 


 

go to top   The Use of Web Services Technology for Mapping and Sharing Environmental Information in Virtual Globe Applications
         by Ebrahim Poorazizi, Ali A. Alesheikh, Mahsa Amini

 

Abstract - Distributing and sharing air pollution information through the Web provides flexible and real time data access, and assists people to discover and use such information. It can also assist authorities and decision makers to collaborate in preventing, controlling, and responding to air pollution and health related issues. Virtual globe software systems such as Google Earth are growing rapidly in popularity as a way to visualize and share environmental data. They are changing the way in which scientists and the general public interact with geospatial data in a virtual environment. The appeal of Google Earth provides unprecedented opportunities for public access to data and collaborative engagement over the Web. However, while Google Earth provides a number of features to facilitate geospatial data access and visualization, there are currently no readily available tools to support GIS (Geographic Information System) modeling and analysis. Web services provide ubiquitous discovery, access, processing, and visualizing spatial data. In this paper, based on Web services technology, a solution is presented to provide the possibility of performing arbitrary spatial analysis and enhance the functionality of Google Earth. Furthermore, the integration of information provided by such services into Google Earth increases the availability of information for most general users. In this research, we have developed an OGC (Open Geospatial Consortium) Web Processing Service to provide on-demand air pollution maps and disseminate real-time air quality information using Web services technology. We also investigate the technological requirements of virtual globes towards web based process integration and propose an approach to integrate processing tasks into such applications. The applicability of the approach is demonstrated by an environmental monitoring scenario. This paper explains that the using of Web services technology and OGC framework provide easy access to geospatial data and processing services over the Internet in interoperable manner. It is also concluded that coupling the geospatial Web services with virtual globe applications is an efficient solution to publish environmental data.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Environmental Monitoring, Web Services technology, WPS, Google Earth, GIS.

 


 

go to top   Hardware/Software Co-Design with MicroBlaze Soft-Core Processor for the Integer Transform Algorithm Used in the H.264 Encoder
         by K. Messaoudi, M. Touiza, E. B. Bourennane, S. Toumi, A. Guessoum

 

Abstract - This paper presents a real-time implementation of the integer transform algorithm, used in the H.264 encoder, using Virtex5 platforms with MicroBlaze soft core processor. The implementation is based on hardware/software co-design. The hardware part consists of the integer transform implementation based on data-parallelism principle. The software part consists of an embedded soft core processor for images acquisition and memory management. The processor ensures also the control functions. Results and performance measurements have been validated on two Xilinx platforms, Virtex5-ML501 and Virtex5-XUPV5. The proposed architecture occupies 39% of the FPGA’s resources using the first platform, and occupies 16% of the FPGA’s resources using the second platform, and operates at a maximum frequency of 161 MHz.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: Integer Transform, Microblaze Processor, Co-Design, FPGA, Memory Management.

 


 

go to top   Monitoring IMS Based eTOM-WSOA-BPEL
         by B. Raouyane, M. Bellafkih, M. Errais, M. Ramdani

 

Abstract - Dissimilarly to billing and fulfillment services, the IMS is less interesting to assurance service which monitors and manages QoS after supply, leaving these matters to the NGOSS system to manipulate via proposed verification scenarios related to SLA lifecycle. The eTOM descriptions offer several scenarios for Service Level Monitoring (SLM) after service provisioning, which ensure timely supply of products and monitor the quality with value added business properties, according to the contractual terms and negotiated resources as described in SLA. The IMS as new generation must exploit the experience of NGOSS, implement it for managing overall network layers (Access, Control, and Service), and monitoring real-time services sensitive to QoS metrics like multimedia. The monitoring system realize SLM must gather performance data from the network performance and map such data to the QoS parameters, indeed SLM monitor IMS operations based on eTOM processes and workflows. In this paper, we provide a design and implementation of SLM-based WSOA and BPEL in accordance with the architectural principles of eTOM and the performance evaluation of our proposed system by integrating new technologies in network management.

Copyright © 2010 Praise Worthy Prize S.r.l. - All rights reserved

 

Keywords: IP Multimedia Subsystem (IMS), Quality of Service (QoS), enhanced Telecom Operations Map (eTOM), Service Level Agreement (SLA), Business Process Execution Language (BPEL), Service Oriented Architecture (SOA), Web Services (WS).

 


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