008790   Yap C S;Loke T C;Saw W L;Wong C M;Wong C H (Accountancy Dep, Faculty of Accountancy and Management, Universiti Tunku Abdul Rahman, Lot PT 21144, Jalan Sungai Long, Bandar Sungai Long, 43000 Kajang, Selangor, Malaysia, Email: yapcs@utar.edu.my) : Determinants of online auction success in eBay malaysia. IUP J Inf Technol 2010, 6(2), 43-55.

This study aims to examine the determinants of auction success in eBay Malaysia. The sample of this study comprises the Internet bidders who bid for digital cameras on eBay Malaysia from June 1-June 30,2009. Digital camera is chosen as it is one of the top ten products Malaysians purchase on the Internet. Data are collected through observation of auction transactions on eBay Malaysia. Seven determinants of auction success-starting price, reserve price, shipping price, availability of payment via PayPal system, actual picture, 'new in box' and 'buy-it-now' option-are tested in this study. The results reveal that auction success in eBay Malaysia is dependent on lower starting price, reserve price, availability of payment via PayPal system and inclusion of the actual picture of the item being sold. Implications, limitations and recommendations for future studies are also presented.

3 table, 22 ref

008789   Vukirovic S;Erdeljan A;Lendak I;Capko D (Computer and Control Dep, Novi Sad Univ, Trg Dositeja Obradovica 6, Novi Sad, Serbia, Europe, Email: srdjanvu@uns.ac.rs) : Novel software architecture for smart metering systems. J scient ind Res 2010, 69(12), 937-41.

For smart metering systems (SMSs), this study presents a novel architecture, which allows simple, secure and fast integration of SMSs with other software products. Proposed architecture that combines better features of two models [Common Information Model (CIM) and OPC's Unified Architecture (UA)] has proven in practice as a good basis for a commercial Meter Data Management System. In a case study, created using data from a pilot project, 7 experiments determined memory usage of OPC UA and CIM servers, duration of exporting data out of CIM and importing them to OPC UA, and size of XML export file.

2 illus, 1 table, 25 ref

008788   Vikhar P A (Computer Engineering Dep, KCES's College of Engineering and IT, Jalgaon, Email: prodnyav123@gmail.com) : Content-based image retrieval (CBIR) state-of-the-art and future scope for research. IUP J Inf Technol 2010, 6(2), 64-84.

Content-Based Image Retrieval (CBIR) is an active area of research since the past decade. A lot of work is still being done in this area, which includes various applications such as security, medical imaging, audio and video retrieval. It shows the growing interest of many researchers in this field which results in new tools and techniques. This paper focuses on the key contributions of various researchers in the field of CBIR techniques. Then it discusses some literature gaps found in the adaptation of existing image retrieval techniques to build useful systems. It also includes the future scope of research in this field.

38 ref

008787   Srinivasan K;Porkumaran K;Sainarayanan G (EIE Dep, Sri Ramakrishna Engineering College, Coimbatore-22, Email: srineekvasan@gmail.com) : Intelligent human body modeling and human pose classification using neural networks. IUP J Inf Technol 2010, 6(2), 21-33.

With increased demand for security systems, video analysis plays an important role in surveillance systems. This paper describes an intelligent visual surveillance system that detects the presence of the human body parts and actions. The motion segmentation is achieved by background subtraction algorithm. The body parts such as head, torso and both-hands are detected individually from the segmented image. First, the head region is identified using the Vertical Projection Histogram (VPH) algorithm. K-means clustering can be used to segment the skin regions of the monocular video sequences. For the detected skin regions, 2D modeling has been implemented for pre-defined poses. The human pose classification can be done by Feed forward Back propagation neural networks algorithm. In pose classification, ten poses are considered. The proposed work is used to detect the skin regions even if the person wears half sleeved or full sleeved dress. Finally, the efficiency of pose classification is also analyzed.

7 illus, 1 table, 15 ref

008786   Saini J R;Desai A A (NO, Narmade College of Computer Application, Bharuch, Gujarat, Email: saini_expert@yahoo.com) : Textual analysis of digits used for designing yahoo-group indetifiers. IUP J Inf Technol 2010, 6(2), 34-42.

A tremendous increase in the use of the Internet for online communication is witnessed worldwide. Yahoo! Inc., provides one such service in the form of Yahoo! Groups. Each such group is identified and accessed using a unique group identifier. This paper presents digit-wise statistics and a detailed analysis of the usage of digits based on the study of nearly 1,400 unique Yahoo group identifiers containing digits. The results show that one-fourth of the total usage of digits is contributed by the digit 0, whereas the three digits 0, 1 and 2 collectively contribute more than 50% of the total digit usage. A number of areas that influence the selection of a digit or digits by the users in the design process have also been identified. To the best of our knowledge this is the first attempt to study online user behavior based on the usage of digits for designing a unique online identifier.

1 illus, 3 table, 11 ref

008785   Nayak A;Prem Kumar;Mahanta P C;Haldar R S; Saxana A K (NO, Directorate of Coldwater Fisheries Research (ICAR), Bhimtal-263 136) : Development of user-friendly database software for indian upland fishes. J Inld Fish Soc India 2009, 41(2), 1-5.

A database software for easy and effective exploration of highland fishes of India has been developed for the first time. The upland regions of the Himalaya and peninsular India are endowed with plentiful and varied fish wealth. More than 250 fishes belonging to Schizothoracinae, Cyprininae, Cobitidae, Sisoridae etc. are quite important from the commercial and biodiversity point of view as well. Though the magnitude of the hill fishery resource is small as compared to tropical, but it forms a subsistence fishery for the weaker sections of people in the hills. Though the pertinent information on the subject was available but remained scattered in different work. This has been scanned and compiled in a form of database software for future use to researchers, planners and other agencies presently engaged in coldwater fishery sector for further resource management. Based on the available information on various physical and biological characteristics of highland fishes including their photographs, several informative computerized modules/ formats have also been designed in the database and properly discussed in the present communication.

5 illus, 12 ref

008784   Kang A S;Sharma V (Electronics and Communication Engineering Dep, Institute of Engineering and Technology Univ, Panjab Univ, Chandigarh, Email: askang_85@yahoo.co.in) : Simulation of pulse-shaping FIR filter for WCDMA. IUP J Inf Technol 2010, 6(2), 56-63.

Due to increasing demand for video signal processing and transmission of high speed and higher order, Finite Impulse Response (FIR) filters have frequently been applied for performing adaptive pulse shaping and signal equalization of received data in real time. Pulse shaping for wireless communication over time as well as frequency selective channels is the need of the hour for 3G and 4G systems. Due to intensive use of digital filters in video and communication systems, high performance in speed, area and power consumption is demanded. With the recent exploding research interest in wireless communications, the application of signal processing to this area is becoming increasingly important. Indeed, the advances in signal processing technology make the most of today's wireless communications possible and hold the key to future services. The present paper deals with simulation model of square root raised cosine pulse shaping filter for Wideband Code Division Multiple Access (WCDMA) with different parameters of the filter at 5 MHz.

5 illus, 14 ref

008783   Geetha T;Arock M (Computer Applicatins Dep, National Institute of Technology, Tiruchirappalli-620 015, Email: gheesun@gmail.com) : Distance-based K-medoids clustering for gene expression data. IUP J Inf Technol 2010, 6(2), 7-20.

This paper proposes K-medoids algorithm for clustering gene expression data. It improves the selection of initial and updated medoids. Results of K-medoids clustering are mainly based on initial centroids; the proposed method helps find the best initial centroids. In this approach, distance matrix is found once which helps select the first k smallest objects as initial medoids. The main features of the algorithm are: (a) Distance matrix is calculated only once and used in the entire process. It avoids scanning of large database every time; and (b) No initial parameter requirement of k (number of clusters). Both these features help reduce execution time and the need for memory. The proposed algorithm is applied on synthetic, genome expression and medical datasets. The outcomes are validated using various measures like Rand index and FM index. Experiments show that the proposed algorithm runs faster and finds better results than the existing algorithms.

4 illus, 3 table, 13 ref

024572   Wu B;Dovey M;Ng M H;Tia K;Murdock S;Fangoh H;Johnsto S;Jeffrey P;Cox S;Essex J W;Sansom M S P (Dep of Biochem, e-Science Cent, University of Oxford, Email: bing@biop.ox.ac.uk) : A web/grid portal implementation of Bio Sim Grid: a biomolecular simulation database. J Digital Inf Mgmt 2004, 2(2), 74-8.

Overall aim of the BioSimGrid project (www.biosimgrid org) is to exploit the Grid infrastructure to enable comparative analysis of the distributed results of biomolecular simulations. In particular this paper presents the implementation of the current BioSimGrid Web Portal. The portal has a 5OA (Service Oriented Architecture) framework built on the layer of OGSA (Open Grid Services Architecture) and OGSA-DAI (Open Grid Services Architecture Data Access and Integration) middleware. The PortalLib has been developed to allow RAD (Rapid Application Development). of portal applications. The portal also integrates PKI (Public) Key Infrastructure) and supports two levels of distributed SSO (Single sign On): Grid cerficate for high security, and user/ password based SSO for maximum flexbity.

6 illus, 26 ref

024571   Wang M;Fox G;Pallickara S (Community Grid Computing Lab, Indiana Univ, 501 N Morton, Suite 224, Email: Bloomington, IN 47404, U.S.A.) : Demonstrations of collaborative web services and peer-to-peer grids. J Digital Inf Mgmt 2004, 2(2), 93-6.

Peer-to-Peer Grids is a new trend in scientific computing and collaboration. It is based on the Peer-to-Peer and Grids technologies and leverages the advantages of both. We develop our collaborative PowerPoint and IE (Internet Explorer) applications with a common Peer-to-Peer Grid architecture. We make NaradaBrokering as our dynamic messaging environment and systematic use of Web Services as one type of our building blocks. Making PowerPoint and Internet Explorer applications collaborative using there Event Metadata and Instant Messaging as Web. Services is useful in situations such as long distance education and web confrencing. This is also a good process of demonstrations of harnessing and leveraging of the power and richness of Web Services and Peer-to-Peer Grids computing.

5 illus, 25 ref

024570   Vijayakumar P (NO, Sri Venkateswara Coll of Engng, Siperumbudur-602 105, Email: vijai@svce.ac.in) : Implications of deploying proximity opertors in web content processing. J Digital Inf Mgmt 2004, 4(2), 183-5.

Web content processing is in crisis as it fails to consider concepts while extracting key words. Extracting phrases from the content is worth and significant. The context preservation of key terms in web information collection is addressed in this work. Proper employment of proximity operators could address the web content processing in a more meaningful way.

1 illus, 1 table, 10 ref

024569   Vijayakumar K P;Lali s L (Dep of Lib and Informaton Sci, Univ of Kerala, Thiruvananthapuram-695 034) : Kerala university library: a SWOT analysis and a proposal for the marketing of information services. Kelpro Bull 2004, 8(1-2), 63-70.

Study attempts an objective analysis of the strengths, weaknesses, opportunities and threats of the Kerala University Central Library and works out a strategy for the effective marketing of a host of information services and products that can be generated by the library without a structural re-engineering.

5 tables, 6 ref

024568   Vassiliou N;Psistakis J;Zafiris P; Papatheodorou T S (High Performance Systems Laboratory. Computer Engng and Informatics De, Univ of Patras, 26500 Patra-Rio, Greece, Email: {nxv,psistakis,paz,tsp}@hpclab.ceid.upatras.gr) : Normal mapping technology: Parthenon case study. J Digital Inf Mgmt 2004, 4(2), 179-82.

Our recent work on using normal mapping for the real-time visualization of 3D reconstructions have been described. Using this technology, now supported on low-cost graphics cards, we can radically reduce the high geometric complexity of reconstructed or laser-scanned 3D models by adding surface detail through normal map images. These images are generated by using the geometric detail of a high polygon model in a low resolution equivalent version. Thus, per pixel lighting can be achieved on higher frame rates, giving the bandwidth for other lighting effects, such as shadow volumes, with less depth and stencil artifacts, leading to superior image quality. We demonstrate and benchmark this technology on a high resolution 3D reconstruction of the Parthenon of Athens, using Open GL, showcasing the benefits of the normal mapping technology on similar cultural heritage projects.

6 illus, 7 ref

024567   Vassiliadis B;Giotopoulos K;Votis K; Likothanassis S;Bogonikolos N;Tsakalidis A (Digital Systems & Media Computing Lab, Hellenic Open Univ Patras, Greece) : The grid as an application service provision enabler: business and architectural issues. J Digital Inf Mgmt 2004, 2(2), 97-103.

Globalisation of trade has increased the number of competitors driving the need for federated and networked business models. In this work we argue that next generation Application Service Provision models could, benefit from the use of the Grid technology. We describe a Grid-enabled architecture for coordinated resource sharing and problem solving in dynamic, multi-institutional vendors. This solution is analysed from two perspectives: technology architecture and business ecology.

8 illus, 24 ref

024566   Syrus J (Dept. of Lib & Inf Sci, Univ of Kerala, Thiruvananthapuram) : Usage of electronic resources and its influence on high school students in Trivandrum district. Kelpro Bull 2004, 8(1-2), 39-42.

6 tables, 15 ref

024565   Sinha M K (NO, Assam Univ, Slichar-788 001, Email: dr mk sinha@yahoo.com) : Library and information professionals in 21st century. Kelpro Bull 2004, 8(1-2), 7-20.

The role of library and information professionals in 21st century has been highlighted. The changing concept of library and information profession in new millenniurn has been explained. The new dimension and new approach of user to information, and the availability of information resources on various forms both in print and electronic media. The role and responsibilities of library & information professionals in IT era have also been discussed along with the impact of new Information communication tech-nologies (ICT) related to information dissemination and retrieval, handling /knowledge managerment in library network & Internet era. It describes the changes in the type of Information reasources available for various categories of users/readers in different types of libraries espeically in academic & technical libraries. Besides this, some aspects of the impacts of new information communication technology (ICT) in library and Information sectors are also have been described in brief.

16 ref

024564   Silerstri F;Bragalia R;Palmereni P;Serrano M (Inf Sci and Technologies Inst (ISTI), Natn Res council, Pisa, Italy, Email: m.serrano@isti.cnr.it) : On-line generation of suggestions for web users. J Digital Inf Mgmt 2004, 2(2), 104-8.

Knowledge extracted from the analysis of historical information of a web server can be used to develop personalization or recommendation systems. Web Usage Mining (WUM) systems are specifically designed to carry out this task by analyzing the data representing usage data about a particular Web Site. Typically these systems are composed by two parts. One, executed offline, that analyze the server access logs in order to find a suitable categorization, and another executed online which is aimed at classifying the active requests, according to the previous offline analysis. In this paper we propose a WUM recommendation system, implemented as a module of the Apache web server, that is able to dynamic generate suggestions to pagesthat have not yet been visited by a user and might be or ins potential interest. Differently from previously proposed WUM systems, SUGGEST2.0 incrementally builds and maintain the historical information, without the need for an offline component, by means of a novel incremental graph partitioning algorithm. In the last part, we a/so analyze the quality of the suggestions generated and the performance of the module implemented. To this purpose we introduce also a new quality metric which try to estimate the effectiveness of a recommendation system as the capacity of anticipating users' requests that will be made farther in the future.

3 illus, 1 tables, 9 ref

024563   Shaji V (NO, Calicut Univ Lib, Malappuram, Kerala) : Internet cafes in Kerala: a user analysis. Kelpro Bull 2004, 8(1-2), 43-7.

4 tables, 7 ref

024562   Sasikala C (Dep of Lib & Inf Sci, Andhra Univ, Andhara Pradesh) : Collection development and electronic information sources. Kelpro Bull 2004, 8(1-2), 33-8.

13 ref

024561   Sanyal S (Sch of Technol and Computer Sci, Tata Inst of Fundamental Res, Mumbai, Email: sanyal@tifr.res.in) : Grid security and integration with minimal performance degradation. J Digital Inf Mgmt 2004, 2(3), 122-6.

Computational grids are believed to be the ultimate framework to meet the growing computational needs of the scientific community. Here, the processing power of geographically distributed resources working under different ownerships, having their own access policy, cost structure and the likes, is logically coupled to make them perform as a unified resource. The continuous increase of availability of high-bandwidth communication as well as powerful computers built of low-cost components further enhance chances of computational grids becoming 3 reality. However, the question of grid security remains one of the important open research issues. Here, Authors present some novel ideas about now to implement grid security, without appreciable performance degradation in grids. A suitable alternative to the Computationally expensive encryption is suggested, which uses a key for message authentication. Methods of secure transfer and exchange of the required key(s) are also discussed.

1 illus, 22 ref

024560   Rajalakshmi K;Jeppu Y V;Karunakar K (NO, Aeronaut Dev Ag, Bangalore-560 017) : Ensuring software quality-experiences of testing Tejas airdata software. Def Sci J 2006, 56(1), 13-19.

Two major safety-critical elements of the onboard software for the Tejas digital flight control, computer software are the control laws and the airdata algorithm. The airdata algorithm computes essential parameters like static and dynamic pressures, altitude, speed, angle of attack, etc. from the airdata sensor input. These parameters are used by the control laws to stabilise the aircraft and to provide the required uniform handling qualities over the complete flight envelope. The algorithm is provided by the Control Law Design Team and coded by the Software Design Group of Software House, ADA, Bangalore, in Ada language. The Independent Verification and Validation Group is responsible for ensuring that the software is bug-free and certifiable. A non-real time (NRT) test methodology has been developed in-house to stress test the onboard software. Overview of the methodology used to carry out the NRT test of the airdata algorithm and some of the testing experiences. has been given.

1 illus, 5 ref

024559   Psaila G;Brugali D (NO, Universita degli studi di Bergamo Facolta di Ingegneria Viale Marconi, I-24044 Dalmine (BG), Italy, Email: psaila@unibg.it) : Issues in virtual database support for decentralized knowledge discovery. J Digital Inf Mgmt 2004, 2(3), 127-31.

Knowledge discovery processes require powerful computational resources, and specific expertise to extract knowledge from large amounts of data. Data, resources, and expertise are now available on the Internet. Thus, decentralization of knowledge discovery processes seems a viable solution. However, effective use of the Internet calls for technologies which allow distributed resources to be flexibly combined, and their activities coordinated. Issues concerning the decentralized execution of knowledge discovery activities has been discussed. Data and computational resources can be assembled together through the Internet to build a virtual database for Decentralized Knowledge Discovery.

1 illus, 15 ref

024558   Pantelios M;Tsiknas L;Christodoulou S; Papatheodorou T (HPCLab, Computer Engng & Informatics Dep, University of Patras, Greece, Email: {pantelio.tsiknas,spc,tsp}@hpclab.ceid.upatras.gr) : Haptics technology in educational applications. J Digital Inf Mgmt 2004, 4(2), 171-8.

Technology influences the education in many ways. This paper addresses the application of Haptics technology to the educational field. Through this learning procedure, children comprehend ideas concerning several subjects of Science, such as the Newtonian Laws, Space Phenomena and Mechanics Assembly. Haptic Technology improves the level of perception for some areas of the Physic World due to the increased immersion it provides.

16 illus, 2 tables, 20 ref

024557   Pallickara S;Fox G (Community Grids Lab, Indiana Univ, IN. USA 47401, Email: {spallick,gcf}@indiana.edu) : Efficient matching of events in distributed middleware systems. J Digital Inf Mgmt 2004, 2(2), 79-86.

Increasingly interactions which entities have with each other are network bound. The entities, with which applications and services need to interact, span a wide spectrum that includes desktops, PDAs, appliances, and other networked resources. These events encapsulate information pertaining to transactions, data interchange, system conditions and finally the search, discovery and subsequent sharing of resources. Events have internal or external (system computed) destinations associated with them. In the case of search, discovery and publish/subscribe interactions 'the system has to efficiently calculate destinations from the corresponding events. This computing of destinations is referred to as matching and is, in itself, a distributed process, which operates on the distributed management of client interests (advertisements and subscriptions). The distributed nature of the underlying messaiging infrastructure also mandates an efficient routing engine. Inefficient approaches to either the calculation of, or routing to, destinations can result in unacceptable network degradations.

13 illus, 31 ref

024556   Pahlevi S M;Kojima I (Natn Inst of Advanred Industrial Sci and Technol (AIST), Grid Technol Res Cent, Tsukuba, Ibaraki 305-8568, Japans, Email: {mirza,kojima}@ni.aist.go.jp) : OGSA-WebDB: An OGSA -based system for bringing web databases into the grid. J Digital Inf Mgmt 2004, 2(2), 48-53.

OGSA-based system, OGSA-WebDB, is proposed, which enables grid applications to query web databases using a standard database query language (SQL). OGSA-WebDB consists of two main components: proxy databases and a mediator. Proxy databases represent the desired web databases while the mediator acts as an interface between the proxy databases and the web databases. The mediator accepts an SQL query from local applications and transforms the query into one or more Boolean conditions that are then sent to the target web databases. The mediator processes the SQL query in parallel, taking into account the characteristics of the web databases. Experimental results revealed that the query processing time is so small that it can be ignored for timing considerations. The system has been fully implemented on top of Globus Too/kit and OGSA-DAI software components.

9 illus, 36 ref

024555   Nygaard J O (SINTEF Appl Mathemtics, Forskningsveien 1, N-0314 Oslo, Norway, Email: Jens.O.Nygaard@sintef.no) : Semiautomatic reconstruction of 3D Buildings from map data and aerial laser scans. J Digital Inf Mgmt 2004, 4(2), 164-70.

Apporach for combining outlines of buildings (footprints) from map data, with aerial laser scans in the form of 3d point clouds to reconstruct 3d models of buildings and produce 3d-printer-ready STL files. An interactive and semiautomatic tool was developed.

11 illus, 5 ref

024554   Mohamed Haneefa K (Dep of Lib and Inf Sci, Univ of Calicut, Calicut, Email: haneefcalicut@yahoo.com) : Design and development of consortia special libraries in Kerala. Kelpro Bull 2004, 8(1-2), 58-62.

Libraries are now facing severe economic constraints. They are encountering budget-cut coupled with the escalating costs of resources and diverse information needs and growing expectations of users. Special libraries in Kerala are no exception to this phenomenon. Joining or forming consorita can solve many of the problems faced by these libraries. This paper evaluates the existing resources and infrastructure of special libraries in Kerala have been evaluated affirms the perceived need for consortia, has been affirmed and the requirements and benefits of consortia and propose plan for the establishment of consortia for special libraries in Kerala have been discussed.

2 illus, 2 ref

024553   Mathew R M (Dep of Lib & Inf Sci, Calicut Uniersity, Kerala) : Impacts of It revolution and globalisation on librarianship. Kelpro Bull 2004, 8(1-2), 77-8.

2 ref

024552   Marincioni F;Lightsom F L;Riall R L;Linck G A;Aldrich T C;Caruso M J (Dep of Earth and Envir Sci, Long Island Univ, C.W. Post Campus, 720 Northern Boulevard Brookville, New York 11548@fausto.maringioni@poste.it) : Integrating digital information for coastal and marine science. J Digital Inf Mgmt 2004, 2(3), 132-41.

Pilot distributed geolibrary, the Marine Reslms Information Bank (MRIB), was developed by the U.S. Geological Survey Coastal and Marine Geology Program and the Woods Hole Oceanographic Institution, to classify, integrate, and facilitate access to scientific information about oceans, coasts, and lakes. The MRIB is composed of a categorization schemes, metadata database, and a specialized software back-end, capable of drawing together information from remote sources without modifying their original format or content. Twelve facets are used to classify information: location, geologic time, feature type, biota, discipline, research method, hot topics, project, agency, author, content type, and file type. The MRIB approach allows easy and flexible organization of large or growing document collections for which centralized repositories would be impractical. Geographic searching based on the gazetteer and map interface is the centerpiece of the MRIB distributed geolibrary. The MRIB is one of a very few digital libraries that employ georeferencing-a fundamentally different way to structure information from the traditional author/title/subject/keyword approach employed by most digital libraries. Lessons learned in developing the MRIB will be useful as other digital libraries confront the challenges of georeferencing.

2 illus, 3 tables, 11 ref

024551   Manjusha M R (NO, Kerala Univ Lib, Trivandrum) : Studies on resources, organization and services of the agricultural college library, Vellayani: a survey of user views. Kelpro Bull 2004, 8(1-2), 71-6.

13 tables, 4 ref

024550   Kurkovsky S;Bhagyavati ;Ray A (Computer Sci Dep, Columbus St Univ, 4225 University Avenue Columbus, GA 31907 USA) : Modeling a grid-based problem-solving environment for mobile devices. J Digital Inf Mgmt 2004, 2(2), 109-14.

Paradigm of grid computing has been successfully applied in the domain of computationally-intensive applications supporting scientific research. Server-class computers interconnected by wired networks are typically used as computing devices in the grid. At the same time, the users of the existing and growing number of wireless mobile devices often demand more computational power than their devices can currently provide.we propose using the paradigm of the computational grid to build a problem-solving environment for wireless mobile devices. We address the challenges of distribution, coordination and assembly of a complex task, as well as such issues as network stability, access transparency and dependability in a grid-based system of mobile devices.

5 illus, 21 ref

024549   Khan L;Chen Q;Wang L (Computer Sci Dep, Univ of Texas at Dallas, Richardson, TX 75083-0688, Email: [lkhan, qingch, leiwang]utdallas.edu) : Change detection in XML documents for fixed structures using exclusive-Or (XOR). J Digital Inf Mgmt 2004, 2(3), 142-7.

XML is an emerging standard for the representation and exchange of Internet data. The characteristics of XML, tree-structured (i.e. the collection of nodes) and self-descriptive, facilitate the detection of changes in an XML document in minute detail and at a finer grain than obtainable at the document level. Furthermore, for a fixed schema (structure) changes may frequently happen in the content or data values of XML documents in the Web. We wish to propose a method that effectively detects this content or data value changes. Rather than inspecting all nodes between two versions of XML documents, we propose an effective algorithm, called top-down, which will detect changes in XML cocuments by exploring a subset of nodes in the tree. We would like to be certain that if a leaf node changes the algorithm will detect these changes, not only by inspecting the node itself, but also its parent node, grand parent node, and so on. For this, a signature for each node will be constructed which is basically an abstraction of the information stored in a node. There are several ways we can construct such a signature. We will choose exclusive or (XOR) to construct node signatures which will prevent a user from getting irrelevant information/change and make certain that the user does not miss relevant information. Note that for the web, along with being able to access huge quantities of information, the relevancy of information/change is more important than missing of relevant information/change. For this, in this paper we propose an autornatic change detetion algorithm which will identify changes between two versions of an XML document based on these signatures using XOR. Our proposed algorithm will traverse the least number of nodes necessary to detect these changes. We demonstrate that our algorithm outperforms the traditional algorithm which exhaustively searches the entire space We will also demonstrate analytically and empirically that the miss of relevant change is within tolerable range.

^ssc3 illus, 3 tables, 12 ref

024548   Jung C;Herdt E;Noll S (Fraunhofer Inst for Computer Graphics, Darmstadt, Germany, Email: cjung, eherdt, noll}@igd.fraunhofer.de) : The grid job buiider - visual modelling of grid jobs using petrj nets. J Digital Inf Mgmt 2004, 2(2), 61-6.

Grid computing technology has emerged from its origin in the scientific area with an increasing impact on the business world. Substantial work has been spend on improving the grid middleware but the gap between the high expectations and available real-life grid applications is still remarkable. There is a significant emerging risk of creating a new hype which may result in disillusion and disappointment. Therefore, this article emphasises the urgence of providing reliable grid-based solutions - regardless of their scientific or commercial domain - in order to get grid computing to a mature state with wide-spread acceptance. An application prototype for editing and modelling grid workflows for semi-professionals - as part of an approach for solving this problem - and a grid job example are described.

7 illus, 12 ref

024547   Gopikuttan A (Dep of Lib & Inf Sci, Univ of Kerala, Kerala) : Scholarly publication pattern in science: a case study of University of Kerala. Kelpro Bull 2004, 8(1-2), 21-4.

4 tables, 3 ref

024546   Gopalan P;Uma Sankari S S;Mohan Kumar D; Vikraman Nair R (NO, Vikram Sarabhai Space Cent, Thiruvananthapuram-695 022) : Software quality assurance-challenges in launch vehicle projects. Def Sci J 2006, 56(1), 31-8.

Launch vehicle projects now depend on software, more than ever before, to ensure safety and efficiency. Such critical software systems, which can lead to injury, destruction or loss of vital equipment, human lives, and damage to environment, must be developed and verified with high level of quality and reliability. An overview of current quality practices pursued in launch vehicle projects has been presented. These practices have played a vital role in the successful launch vehicle missions of Indian Space Research Organisation. As complexity of software increases, the activity that gets affected is nothing but, software quality assurance (SQA). The SQA team is facing a lot of challenges in current practices. Paper brings out such challenges in different phases of software life cycle. A set of key points to some techniques and tools, that could contribute to meet the software quality assurance challenges in launch vehicle projects, has been also discussed.

2 illus, 2 tables, 9 ref

024545   Florez G;Liu Z;Bridges S;Vaughn R;Skjellum A (The Cent for Computer Security Res, Mississippi St Univ, {gf24, zliu, bridges, vaughn}, Email: @cse.msstate.edu, tony@cis.uab.edu) : Detecting anomalies in high-performance parallel programs. J Digital Inf Mgmt 2004, 2(2), 44-7.

Message Passing Interface (MPI) is the defacto standard for implementing parallel programs for distributee computation. As MPI applications run, a number of different types of irregularities can occur including those that result from intrusions, user misbehavior, corrupted data, deadlocks or failure of cluster components. In this paper, we perform a comparison of different artificial intelligence (AI) techniques that can be used to implement a lightweight monitoring and detection system for parallel applications on a cluster of Linux workstations. We study the accuracy and performance of deterministic and stochastic algorithms when we observe the flow of function library and OS system calls of parallel programs written with MPI. We demonstrate that monitoring of MPI programs can be achived with high accuracy and in some cases with a 0% false positive rate in real-time, and we show that the added computational load on each node is small. Finally we demonstrate that simple deterministic methods perform poorly when the program flow grows in size ana variety, and that more complex methods are required.

2 illus, 2 tables, 17 ref

024544   Deepthy K;Varghese M (NO, Kerala Univ Lib, Thiruvananthapuram, Email: emvargis@teacher.com) : Cost escalation of scholarly periodicals in botany: a comparative study of British, American, Dutch and Indian publications. Kelpro Bull 2004, 8(1-2), 49-57.

Escalation of annual subscription to a sample of 50 scholarly periodicals in Botany, during the period 1976 to 2003 has been analysed. The sample includes titles of Indian, Brititsh, American and Dutch origin. The association between rate of cost escalation and factors like the country of origin of the journals, frequency of publication and type of sponsoring body has been examined. The effect of exchange rate of foreign currencies as experienced in Indian libraries has also been studied.

12 tables, 30 ref

024543   Chalhoub G;Saad S;Chbeir R;Yetongnon K (Computer Sci Dep, LE21-Bourgogne Univ, BP 47870 21078 Dijon CEDEX-FRANCE, Email: GChalhoub@bdl.gov.lb) : Towards fully functional distributed multimedia DBMS. J Digital Inf Mgmt 2004, 2(3), 116-21.

Address the issue of Distributed MultiMedia DBMS (DM²DBMS) where traditional meta-database used to describe the database schema is no longer appropriate. The meta-database is the kernel of the DBMS and we do believe that new generation of meta-database is required for DM²DBMS. For this, we provide a multimedia meta-database model M2 able to improve multimedia management in DM²DBMS in terms of distributed data storage and retrieval. The proposed multimedia meta-database model is independent (but compatible) of all current data format models (MEPG-4, MPEG-7, etc.). We show how M² can allow to DBMS to easily respond to new requirements imposed by distributed multimedia data.

3 illus, 9 ref

024542   Cannataro M;Guzzo A;Comottio C;Veltri P (Univ Magna Graecia of Catanzaro, Via T. Campanella 115, Catanzaro, Italy, Email: {cannataro,veltri}@unicz.it) : Ontology-based design of bioinformatics workflows on PROTEUS. J Digital Inf Mgmt 2004, 2(2), 87-92.

Bioinformatics is as a bridge between life science and computer science: computer algorithms are needed to face complexity of biological processes. Bioinformatics applications manage complex biological data accessing distributed heterogeneous databases, and require large computing power. After introducing bioinformatics requirements, we present the architecture of PROTEUS, a Grid-based Problem Solving Environment that integrates ontology and workflow approaches to enhance composition and execution of bioinformatics application on the Grid. A first distributed implementation of PROTEUS on Globus is also described.

4 illus, 37 ref

024541   Bocchi F (Centro "Gina Fasoli" per la storia delle citta Dipartimento di Discipl, Universita di Bologna Viale Berti Pichat, 10 I-40127 BOLOGNA, Italy) : The city in four dimensions: the Nu.M.E. Project. J Digital Inf Mgmt 2004, 4(2), 161-3.

New computer and communication technologies permit the transfer of research results in to new communication media. In this paper, the Nu. M.E project (New Electronic Museum) relative to visualization is presented that shows the reconstruction of the city of Bologna. The risk of virtual resonstruction is also presented.

3 illus

024540   B Mini Devi (NO, Kerala Univ Lib, Thiruvananthapuram,) : Bibliographic coupling:a case study based on articles in environmental pollution indexed in toxline during 1998-2003. Kelpro Bull 2004, 8(1-2), 25-9.

An overview of bibliographic coupling based on a case study conducted in the articles of Environmental Pollution indexed in TOXLINE during 1998 to 2003 has been given. It discusses various aspects like bibliographic coupling iIn different jJournals, year-wise analysis, and strength of coupling have been discussed. The study reveals that as one of the most alerting field of research all over the world environmental pollution marks out its transdisciplinary nature.

3 tables, 8 ref

024539   Andarood E;Andres F;Ono K;Lebigre P (Natn Inst of Informatics, Ecole d'Architecture Paris Val de Seine, Japan) : Developing a visual lexical model for semantic management of Architectural visual data design of spatial ontology for carvanserais of silk roads. J Digital Inf Mgmt 2004, 4(2), 151-60.

Visual model conceptualize and represent lexical knowledge of the historical architecture domain to improve the semantic management of visuai information and reduce the ambiguity problem of data access. This model -domain ontology- provides systematic lexical specification of the components and the relationships between them that reflects 3 dimensional characteristics of the architectural content for a typology of historical buildings, caravanserais of the Silk Roads. This paper discusses issues snout design and data input of the lexical model, specially the multilingual terminology. Further as the process of defining relationships is the main focus of developing a spatial ontology model, this paper will review the necessary background knowledge and the contribution of architectural domain for collecting and creating relationships in order to cover the attributes of architectural space and the constraints and properties that will influence defining pair of links for the corpus of this research. The initial design of prototype of this model with relationships using protege tool is also presented. Finally we conclude with a technical application of this knowledge model which purposes are to support the semantic of visual architectural information and to enhance data management for the users for internet based access.

11 illus, 27 ref

024538   Aloisio G;Cafaro M;Fiore S;Mirto M (Cente for Advd Computnl Technologies/ISUFI, Univ of Lecce, ltaly, Email: maria.mirto}@unile.it) : Early experiences with the GReIC library. J Digital Inf Mgmt 2004, 2(2), 54-60.

Today many Data Grid applications need to manage and process a very large amount of data distributed across multiple grid nodes and stored in relational databases. The Grid Relational Catalog Project (GReIC) developed at the CACT/ISUFI of the University of Lecce, represents an attempt to design and deploy a Grid-DBMS for the Globus Community. After defining the Grid-DBMS concept, we describe the GReIC library which is layered on top of the Globur, Toolkit. The user can build client applications on top of it which can easily get access to and interact with data resources.

6 illus, 2 tables, 22 ref

024537   Aloisio G;Cafaro M;Cesari R;Mangia C;Marra G P;Miglietta M;Mitro M;Rizza U;Schipa I;Tanzarella A (Gian Paolo Marra, Inst of Atmospheric Sci and Climate, C.N.R S.P. Lecce-Monteroni, km 1,200-73100 Lecce(Italy), Email: gp.marra@isac.le.cnr.it) : G-AQFS: grid computing exploitation for the management of air quality in presence of complex meteoroloqical circulations. J Digital Inf Mgmt 2004, 2(2), (NULL).

Leveraging Grid Computing technology, i.e. the virtualization of distributed computing and data resources such as processing, network bandwidth and storage capacity to create a single system image, we present a Grid Air Quality Forecast system (G AQFS). The Modeling system consists c.' meteorological and dispersion models coupled in cascade. The computational workflow of the Mode/ing system is defined by means of DAGs (Direct-Acyclic Graph). A simple system is presented to manage and schedule the computational Grid resources. In particular, the algorithm developed for the Work Flow Scheduler named Depth-First Search Job with Priority (DFSP) is illustrated. As case study the system has been applied over Salento area, in the Apulia region (South-eastern Italy), to simulate ground level ozone concentration. Model predictions have been compared with field measurements, with reasonable results.

7 illus, 2 tables, 21 ref

023585   Venkatesan R;Sivanandam S N (Dep of Computer Sci and Engng, PSG Coll of Technol, Coimbatore-641 004) : A novel delta-rule approach for the design of PID controllers to stabilize linear time invariant continuous systems. J Comput Sci 2005, 1(3), 277-86.

A systematic delta-rule approach for tuning the parameters of a PID controller during design phase has has been presented. A suitable second order approximant of the given higher order Linear Time Invariant Continuous system is considered for determining a possible set of the Proportional (K_p), Integral (K_i) and Derivative (K_d) factors of the required PID controller. For stabilization, Overshoot, Settling Time and Steady state error are taken as the design criterion in the Time domain to adjust the values of K_p, K_t and K_d. The controller designed for the Second order approximant is cascaded with the given higher order system to validate the stabilization process. The proposed design methodology is illustrated with transfer functions of selected plants taken from the literature.

14 ref

023584   Sudha Sadhasivam G (Dep of CSE, PSG Coll of Technol, Coimbatore-641 004, Email: sudhasadhasivam@yahoo.com) : APT -A novell symmetric key cryptographic algorithm for securing VPN's. J Comput Sci 2005, 1(3), 227-33.

A novel symmetric key cryptographic algorithm - Advanced Polynomial Transformation (APT) for securing the Virtual Private Networks (VPNs) has been proposed. VPNs allow users to communicate and access information over the public Internet and other IP-based networks. Secure virtual connections or 'tunnels' are established to overcome the security threats in VPN. Focuses on the Encryption 'tunnels' by proposing a novel 96-bit symmetric key cryptographic algorithm that uses APT (Advanced Polynomial Transformation). APT is a Block-Cipher that operates on 64-bit plain-text blocks. It makes use of algebraic polynomial functional mappings for the plaintext to cipher transformation by poly-alphabetic substitution. It transforms plain text to 64-bit ciphers achieving an input-output bit conversion ratio of 1:1.

17 illus, 11 ref

023583   Sivannarayana M V;Sebastian M P (Computer Engng Dep, Natn Inst of Technol Calicut, Calicut, Kerala-673 601, Email: muppalla999@rediffmail.com) : History-aware anticipated route maintenance in mobile ad hoc networks. J Comput Sci 2005, 1(3), 260-8.

In a mobile ad hoc network (MANET), for hosts that are not within each other's range, multi-hop routes must be established. Because of the node movement, the routes can fail randomly. A host that was part of a route may move away from its upstream and downstream partners, thus breaking the route. The Anticipated Route Maintenance (ARM) protocol decreases the link failures and enforces route maintenance. The major drawback of the ARM is its control overhead. Methods to reduce the control overhead of ARM without compromising on other performance metrics have been investigated. History-Aware Multi-path Routing (HAMR) algorithm has been used to enhance the ARM. The resulting protocol is called the History-Aware Anticipated Route Maintenance (HAARM) protocol. Its performance is compared with the other protocols and it has been observed that HAARM reduces the control overhead in ARM, keeping the other performance metrics intact.

7 illus, 17 ref

023582   Noushath S;Hemantha Kumar G;Shivakumara P (Dep of Stud in Computer Sci, Univ of Mysore, Mysore-570 006, Email: nawali_naushad@yahoo.co.in) : An efficient and robust face recognition system based on two-dimensional Fisher linear discriminant analysis : a new approach. J Comput Sci 2005, 1(3), 234-42.

Eye portion of humans contains most discriminative information than any other part of the face . A new scheme of face image feature extraction has been presented. A successful attempt has been made in obtaining good recognition rate by using only eye regions of a facial image. Initially, eye regions are segmented from the facial images. Segmented eye regions are then trained using two-dimensional fisher linear discriminant analysis (2DFLD) scheme. Based on experimentation it is observed that the proposed method requires fewer coefficients to represent an image and remained insensitive to noise as compared to existing methods. The proposed method has been tested on AT&T database and compared with existing methodologies. The obtained results are described qualitatively and discussed.

6 tables, 13 ref

023581   Nair M S (NO, Rajagiri Sch of Computer Sci, Kalamassery, Kochi-683 104, Email: madhu_s_nair2001@yahoo.com) : Security model for IEEE 802.11 wireless LAN using WPA. J Comput Sci 2005, 1(3), 214-20.

The increasing reliance on wireless networks for information exchange makes it critical to maintain reliable and secure communications. Much attention has been focused recently on security aspects of Wi-Fi (IEEE 802.11) wireless LAN systems. Discusses about two main wireless security protocols-WEP and WPA, used for secure transmission of data over wireless networks. These protocols strongly increase the level of data protection and access control for existing and future wireless LAN systems. The above-mentioned protocols will assure that only authorized network users can access the network. Wireless LANs must be secured to ensure protection of privacy and data integrity. The paper covers the native security issues in IEEE 802.11, and how WEP and WPA can be utilized to overcome the security problems.

4 illus, 12 ref

023580   Karthikeyan E;Balasubramaniam P (Computer Sci Dep, Gandhigram Rur Inst (Deemed University), Gandhigram, Dindigul, Tamil Nadu) : Improved algorithm for elliptic curve scalar multiplication using wMOF and Shamir method. J Comput Sci 2005, 1(3), 221-6.

Since the inception of elliptic curve based cryptosystems, numerous amount of research has been done to increase the efficiency. ECC is accepted widely as a next generation cryptosystem and is more suitable for limited environments like cellular phones, PDA etc. Scalar multiplication is the most time consuming operation in elliptic curve based protocols. A new canonical form called MOF (mutual opposite form) has been discussed and a new method, which is an extended version of Shamir's method has been proposed. It is found that our proposed method significantly improves the performance of the elliptic curve exponentiation.

2 tables, 10 ref