002046   Shi S;Li J;Wang C (Sch of Computer Sci and Technol, Harbin Inst of Technol, Harbin, Heilongjiang Province, China, Email: shengfei@hit.edu.cn) : Using in network modeling strategy to manage data in MANET database. J Digital Inf Mgmt 2005, 3(3), 166-72.

With the development of computer networks and wireless communication technologies, more interests have been taken in mobile wireless ad hoc networks (MANET) that are only constructed by wireless hosts. In MANET database system, research must take into consideration issues both on clients and servers which are all mobile and power limited. Wireless sensor networks can be seen as data source in many applications based on MANET, such as the command system in battlefields and the large-scale geography monitor system. In these applications, mobile clients query the data generated by wireless sensor networks through mobile servers. Up to now, few papers have discussed the methods of data management in such complicated systems which include mobile clients, mobile servers and wireless sensor networks. The data of sensor networks can be treated as time series, and in most cases these time-series can construct a probability model such as AR, ARMA. Moreover, the communication cost can be saved and the future data can be predicted beforehand by using the data models. Novel and complicated system architecture has been proposed. In order to deal with the data management problem, in-network modeling strategy, based on time-series analysis theory, is also proposed, which can significantly reduce the workload of communication and improve the performance of the system. By using in-network modeling methods, the traditional cache technology is endowed with new abilities, such as computable capability and stronger semantic representation faculty. The problem of mobile server's mobility and the frequent disconnection of mobile clients are resolved by using TS-Cache. The experiments results of the simulation confirm the good performance of the algorithms under different situations.

4 illus, 2 table, 22 ref

002045   Papel C L;Gancarski S;Valduriez P (LIP6, , Paris France, Email: Firstname.Lastname@lip6.fr) : Data quality management in a database cluster with lazy replication. J Digital Inf Mgmt 2005, 3(2), 82-7.

Considered the use of a database cluster with lazy replication. In this context, controlling the quality of replicated data based on users requirements is important to improve performance. However, existing approaches are limited to a particular aspect of data quality. Proposed a general model of data quality which makes the difference between "freshness" and "validity" of data. Data quality is expressed through divergence measures from the data with perfect quality. Users can thus specify the minimum level of quality for their queries. This information can be exploited to optimize query load balancing. Implemented the approach in the Refresco prototype. The results show that freshness control can help increase query throughput significantly. They also show significant improvement when freshness requirements are specified at the relation level rather than at the database level.

7 illus, 22 ref

002044   Norottam Chand;Joshi R C;Misra M (Dep of Electron & Computer Engineerig, Indian Inst of Technol, Roorkee-247 667, Email: narotdec@iitr.ernet.in) : Energy efficient cache invalidation in a mobile environment. J Digital Inf Mgmt 2005, 3(2), 119-25.

Caching in mobile computing environment has emerged as a potential technique to improve data access performance and availability by reducing the interaction between the client and server. A cache invalidation strategy ensures that cached item at a mobile client has same value as on the origin server. To maintain the cache consistency, the server periodically broadcasts an invalidation report (IR) so that each client can invalidate obsolete data items from its cache. The IR strategy suffers from long query latency, larger tuning time and poor utilization of wireless bandwidth. Using updated invalidation report (UIR), the long query latency can be reduced. A caching strategy that preserves the advantages of existing IR and UIR based strategies and improves on their disadvantages. Simulation results prove that the strategy yields better performance than IR and UIR based strategies.

10 illus, 25 ref

002043   Milano D;Scannapieco M;Catarci T (Universit'a di Roma "La Sapienza" Departimento di Informatica e Siste, , Italy, Email: milano@dis.uniroma1.it) : Peer-to-peer data quality improvement in the DaQuinCIS system. J Digital Inf Mgmt 2005, 3(3), 156-65.

Data quality improvement is becoming an increasingly important issue. In contexts where data are replicated among different sources, data quality improvement is possible through extensive data comparisons: whereas copies of same data are different because of data errors, comparisons help to reconcile such copies. Record matching algorithm can support the task of linking different copies of the same data in order to engage reconciliation activities; for instance, a periodical running of record matching algorithms can be performed in order to reconcile copies with different quality. Nevertheless, the extensive running of such algorithms is typically performed in fixed instants. This allows for periods in which the quality of data can deteriorate, while no quality improvement action is performed on data. Describes the DaQuinCIS (Data Quality in Cooperative Information Systems) approach for data quality improvement in contexts where data are replicated among heterogeneous and distributed sources. The DaQuinCIS strategy complements a periodical record matching activity with an "on-line" quality improvement, performed at query processing time. Experimentally shown the feasibility and effectiveness of the approach by applying it to real databases; also quantitatively evaluate the efficiency of the system.

14 illus, 28 ref

002042   Libsie M;Kosch H (Addis Ababa Univ P.O. Box 30312, , Addis Ababa, Ethiopia, Email: mlibsie@yahoo.com) : Content-aware segment-based video adaptation. J Digital Inf Mgmt 2005, 3(2), 88-94.

Video adaptation is an active research area aiming at delivering heterogeneous content to yet heterogeneous devices under different network conditions. It is an important component of multimedia data management to address the problem of delivering multimedia data in distributed heterogeneous environments. Presents a novel method of video adaptation called segment-based adaptation. It aims at applying different reduction methods on different segments based on physical content. The video is first partitioned into homogeneous segments based on physical characteristics. Then optimal reduction methods are selected and applied on each segment with the objective of minimizing quality loss and/or maximizing data size reduction during adaptation. In addition to this new method of variation creation, the commonly used reduction methods are also implemented. To realize variation creation, a unifying framework called the Variation Factory is developed. It is extended to the Multi-Step Variation Factory, which allows intermediary videos to serve as variations and-also as sources to further variations. The proposals are implemented as part of a server component, called the Variation Processing Unit (VaPU) that generates different versions of the source and an MPEG-7 metadata document.

8 illus, 3 tables, 14 ref

002041   Kim K H;Kim H S (Dep of Computer Sci Collaboration Technol Res Lab, Kyonggi Univ San 94-6 Yiuidong Youngtongku Suwonsi, Kyonggido-442 760, South Korea, Email: kwang@kyonggi.ac.kr) : A peer-to-peer workflow model for distributing large-scale workflow data onto grid/P2P. J Digital Inf Mgmt 2005, 3(2), 64-70.

In the workflow technology literature, so far, very-large scale workflow architectures, systems and applications have been looking for distributed computing infrastructures maximizing their performance and efficiency, but using minimal resources. Almost all conventional workflow systems are based upon the client-server and clustering computing environments. However, according to that Grid/P2P is hot-issued as a very feasible infrastructure for very-large scale information systems needed to explore some reasonable approaches for applying the Grid/P2P as an infrastructure of very-large scale workflow systems. The paper ought to be one of those trials for seeking the-how being fitted very well into the nature of the Grid/P2P. Proposes a scheme to generate a Grid/P2P configuration for implementing resource management and scheduling functionality for workflow procedures, which gives best distribution of workflow data in enacting a workflow process over Grid/P2P. The scheme's essential idea is on the peer-to-peer workflow model that is automatically generated from the workflow process (represented by ICN) by an algorithm conceived in the paper. Eventually, the peer-to-peer workflow model becomes a workflow data distribution model for enacting the workflow process on runtime over Grid/P2P. describes the peer-to-peer workflow model that provides a theoretical basis for peer-to-peer workflow distribution and enactment over Grid/P2P.

7 illus, 16 ref

002040   Hou W C;Wang C F;Su M (Dep of Computer Sci, Sth Illinois Univ at Carbondale, Carbondale IL, 62901, U.S.A, Email: mengsu@psu.edu) : Composing optimal invalidation reports for mobile databases. J Digital Inf Mgmt 2005, 3(2), 126-32.

Caching can reduce expensive data transfers and improve the performance of mobile computing. In order to reuse caches after short disconnections, invalidation reports are broadcast to clients to identify outdated items. Detailed reports may not be desirable because they can consume too much bandwidth. On the other hand, false invalidations may set in if accurate timing of updates is not provided. In this research, we aimed to reduce the false invalidation rates of cached items. From analysis, found that false invalidation rates are closely related to clients reconnection patterns (i.e., the distribution of the time spans between disconnections and reconnections). Showed that in theory for any given reconnection pattern, a report with a minimal false invalidation rate can be derived. Experimental results have confirmed that the method is indeed more effective in reducing the false invalidation rate than others.

3 illus, 2 tables, 22 ref

002039   Hopkins L;Vassileva J (Dep of Computer Sci, Univ of Saskatchewan 57 Campus Drive, Sasakatoon S7N 5A9, Canada, Email: ikh328@mail.usask.ca) : Beyond keywords and hierarchies. J Digital Inf Mgmt 2005, 3(2), 139-45.

As our ability to store information increases, the mechanisms employed to access that information become ever more important. Presented Archosum, a prototype of an organizational system that attempts to encapsulate the benefits of both hierarchical and keyword systems. By introducing abstract entities, Archosum provides a simple interface with which users can build and maintain powerful relationship-based organizations. Compared Archosum to two alternative systems in a user study. Through this study begin to exposed some of the advantages and disadvantages to each of these three approaches to designing an organizational system. Furthermore, begin to consider how organizational systems will work when distinct users create organizations for collections and how sharing might be facilitated using Archosum.

7 illus, 24 ref

002038   Haraty R A;Khatib S A (NO, Labanese American Univ, Beirut, Lebanon, Email: rharaty@lau.edu.lb) : T-stem-A superior stemmer and temporal extractor for Arabic texts. J Digital Inf Mgmt 2005, 3(3), 173-80.

Stemming has a large effect on Arabic information indexing and retrieval at least partially due to the highly infected nature of the language. Work demonstrates the process of improving other stemmers, mainly that of [1]. Reached a recall difference of 28% over the work of [1]. The main part of improvement was due to the addition of more grammatical rules that facilitate the process of stemming. Following this part, implemented a procedure that extracts the temporal references from the texts. This procedure is highly dependable on the stemming process. A list of all the temporal references is used. The type of the temporal word decides the procedure to treat this word and gives the importance of this temporal reference. These conditions, with the help of the stemmer, produced an excellent result of 95% precision rate and of 91% recall rate.

6 table, 31 ref

002037   Gross T;Tan D;Wirsam W (Fac of Media, Bauhaus-University Weimar, Bauhausstr. 11, 99423 Weimar, Germany) : CYCLADES: An environment for the cooperative management of digital information. J Digital Inf Mgmt 2005, 3(2), 146-52.

Knowledge management is often viewed as a structured process of eliciting knowledge, storing knowledge, and later retrieval by individuals. Argued that knowledge management should be seen as a dynamic process an interaction between experts. Therefore, environments should support the cooperative management of information in workgroups or online communities. Started with a motivation for this cooperative perspective of supporting knowledge management through support for the creation and exchange of knowledge in communities. Introduced the CYCLADES environment-an open cooperative virtual archive environment based on open archives. Reported in detail on the requirements analysis and functional design, on the specification, on the implementation, as well as on the evaluation of the environment. Finally, draw conclusions for the design and implementation of cooperative knowledge management.

12 illus, 21 ref

002036   Ding H;Solvberg I T (Inf Mgmt Grp, Norwegian Univ. of Sci & Technol Sem Saelands vei 7-9 No-7491, Trondheim, Norway, Email: hao.ding@idi.ntnu.no) : Semantic data integration framework in peer-to-peer based digital libraries. J Digital Inf Mgmt 2005, 3(2), 71-5.

Approaches in integrating heterogeneous metadata records in Peer-to-Peer (P2P) based digital libraries (DL). Advantages of adapting P2P network over other approaches are to be presented in searching information among moderate-sized digital libraries. Before presenting the semantic integration solution, described the P2P architecture built in JXTA protocol. By adopting JXTA protocol, peers can automatically discover the other candidates which can provide most appropriate answers. Such feature is realized by the advertising functionality which is introduced in the query process in the paper. As to the metadata integration, since resources may adopt distinct metadata, standardized or non-standardized, employed the most widely adopted Dublin Core [17] as the globally shared metadata to sponsor the interoperation. Also describes the mechanism of applying inference rules to convert heterogeneous metadata to local repository.

4 illus,31 ref

002035   Cruz C;Nicolle C (ACTIVE 3D-Lab, , 2 rue rene char, BP 66606, 21066 Dijon cedex France, Email: christophe.cruz@kholi.u-bourgogne.fr) : Ontology-based heterogeneous XML data integration. J Digital Inf Mgmt 2005, 3(2), 133-8.

Presented an ontology-based method for formalizing the implicit semantic and suggested mechanisms to semantically integrate XML schemas and documents as well. After a survey of database interoperability, present the semantic integration approach by explaining the nature of antology. The article then presents integration method for XML data and schemas using a generic ontology.

4 illus, 15 ref

002034   Chandra Sekharaiah K;Janaki Ram;Khan M A M (Dep of Computer Sci & Engng, JNTU Coll of Engng, Hyderabad 500-072, Email: shakes123@sify.com) : The peculiarities of software composition models. J Digital Inf Mgmt 2005, 3(3), 181-7.

Concerns are at the core of software engineering and composition. Concerns apply in terms of objects, methods, subjects, aspects, roles. Explores such various concerns from a comparison perspective. It concludes that none of the software composition techniques explored so far give adequate treatment in addressing the object schizophrenia problem for a complete solution. The work is related to HRI and robot motion controls based on software composition.

2 illus, 64 ref

002033   Berhe G;Brunie L;Pierson J M (Lyon Res Cent for Images and Inf System (LIRIS), Inst Natn des Sci, Appliquees de Lyon, France, Email: girma. berhe@liris.cnrs.fr) : Content adaptation in distributed multimedia systems. J Digital Inf Mgmt 2005, 3(2), 95-100.

New developments in computing and communication technology facilitate mobile data access multimedia application systems such as healthcare, tourism and emergency. In these applications, users can access information with variety of devices having heterogeneous capabilities. One of the requirements in these applications is to adapt the content to the user's preferences, device capabilities and network conditions. Presented a distributed content adaptation approach for distributed multimedia systems. In this approach content adaptation is performed in several steps and the adaptation tools are implemented by external services, called as adaptation services. In order to determine the type and sequence of the adaptation services, developed an adaptation graph based on client profile, network conditions, content profile (meta-data) and available adaptation services. Different quality criteria are used to optimize the adaptation graph.

6 illus, 17 ref

002032   Benasher Y;Berkovsky S;Gelzin E;Tammam A; Vilkhov M; (Computer Sci Dep, Haifa Univ, Haifa, Israel) : Using J2EE/.NET clusters for parallel computations of join queries in distributed databases. J Digital Inf Mgmt 2005, 3(2), 76-81.

Considered the problem of parallel execution of the Join operation by J2EE/.NET clusters. These clusters are basically intended for coarse-grain distributed processing of multiple queries/business transactions over the Web. Thus, the possibility of using J2EE/.NET clusters for fine-grain parallel computations (parallel joins in the case) is intriguing and of practical interest. Developed a new variant of the SFR algorithm for parallel Join operations and proved its optimality in terms of communication/execution-time tradeoffs via a simple lower bound. Two variants of SFR algorithm were implemented over J2EE and .NET platforms. The experimental results show that despite the fact that J2EE/.NET are considered to be platforms that use complex interfaces and software entities, J2EE/.NET clusters can be efficiently used to execute the join operation in parallel.

7 illus, 2 tables, 24 ref

002031   Arroyo S;Kook H S;Fensel D (NO, DERI Technikerstrasse 21a 6020 Innsbruck, Austria, Email: sinuhe.arroyo@deri.org) : Searching for semantic web services - a Google based approach. J Digital Inf Mgmt 2005, 3(3), 188-91.

Semantic web service discovery and selection are a very time and resources consuming task. They require reasoning support for the matchmaking of the capabilities of services against user defined goals arid constituent sub-goals, and for the mediation of the domain knowledge used to describe the different relevant aspects of services. Presents a performance study around the number of times the reasoner has to be used in nowadays initiatives. Such study lays the oasis for an innovative approach inspired in the popular search engine Google, which tries to improve the performance of the whole process. The main idea is to carry the reasoning as an off-line task, storing the output for later reuse. It also elaborates on the idea of making service descriptions and goals available independently of registries or repositories, i.e. Web pages. Such idea permits to profit, extend and further reuse, well established concepts developed by popular search engines, thus assimilating service discovery and selection to any other type of search engine task.

3 ref

002030   Anandhakumar P;Kannan A (Computer Sci and Engng Dep, Anna Univ, Chennai-600 025, Email: anandh@annauniv.edu) : Object tracking in a video sequence using tree structure. Indian J Math mathl Sci 2006, 2(1), 69-80.

A new approach is proposed for object tracking in video sequences. Two methods are proposed for object tracking based on tree structures of video frames. The first method identifies the moving object in a video sequence. A object can be of any size and moved anywhere in the frame but method will identify the object. Also the method can track multi objects in the video sequence with the condition of no camera movement. The second method track the user specified query image in the video frames with the camera movement. The method can track the query objects, which are present in the frames with slight change. The frame, which contains the query object, is displayed to the user. Both metods display the frame numbers and names to the user.

6 illus, 18 ref

001008   Tewari P;Pratibha Singh;Sunita Rani (Dep of Hom Sci Ext, Coll of Hom Sci G.B. Pant Univ of Agric and Technol, Pantnagar-263 145) : Media based utilization-focused evaluation of the technological package. Pantnagar J Res 2005, 3(2), 112-15.

Media wise utilisation focused evaluation of the technology kit was conducted to see the effectiveness of media in terms of gain in knowledge of the rural women as a result of the use of respective media. Pre and post experimental design was used to know the cognitive development of rural women. It was found that cent per cent women had low level of knowledge prior to conducting the experiment and after introduction of multimedia package their level of knowledge increased to medium level and electronic media was more efficient in imparting knowledge compared to lecture cum demonstration and print media. There was a marked difference in knowledge gain of the respondents before and after the exposure to different media therefore it is recommended of a to strengthen the learning.

1 illus, 3 tables, 4 ref

001007   Srivastava M;Singh A;Rai D;Rai A K (Dep of Pl Path Multimedia Lab, C.S. Azad Univ of Agric & Technol, Kanpur-208 002) : Multimedia efficacy in teaching learning process. Farm Sci J 2005, 14(2), 61-3.

Creating effective multimedia products on academic topics is a challenge for the students who make it in promoting their knowledge. It also enables them to a higher level of engagement on their learning, Multimedia interactivity of this type is more useful in some academic areas and computer enhanced or enchanted learning is clearly one area where interactive multimedia modules would be most effective. The learner's modules and reactions to the multimedia assignments are very positive. Multimedia projects need to be suitably clear in terms of the conceptual challenge learners faced. Learners would be provided in future with a more knowledge in computers, so that they can focus on multimedia storytelling. Learners certainly understood the need for visual and audio integration on a conceptual level.

4 ref

007520   Umadevi Chezhian V;Ramar K;Geetha S (Computer Science Dep, College of Business and Economics, Asmara, State of Eritrea, East-Africa) : Calculation of probabilistic worst-case response-time for message in bluetooth. Indian J Sci Technol 2010, 3(7), 770-3.

The response time is one of the main constraints in bluetooth synchronization and message transfer. This paper! provides a novel approach for calculating a probabilistic worst-case response-time for messages in the bluetooth. We are using frequency hopping mechanism in order to retrieve the useful distribution of pockets instead of the worst-easel scenario in bluetooth communication. Since the bluetooth systems are not synchronized, the number of bluetooth hops which it overlaps will depend not just on the 802.11 packet's length but also on the time offset between the packet andl the hops. The best option to avoid the overlap problem is the time period. This analysis was concerned only with the timing relationships between an 802.11 packet and the bluetooth hops.

3 illus, 6 ref

007519   Su Y (School of Information Technology and Engineeting, Yuxi Normal Univ, Yuxi, Yunnan, China-653 100, Email: yxshyyali@yahoo.com.cn) : Design of the management system of university projects based on UML sequence diagram. Indian J Sci Technol 2010, 3(8), 928-31.

Analysis and design of the management system of university projects is based on UML sequence diagram. It is user-centric. It describes the object from the dynamic point of view and illustrates the interaction process of the objects with the time change. This design can support all intermediate program language. At the same time, the correct use of it will reduce system complexity and improve software development efficiency and portability.

4 illus, 6 ref

006529   Vermani S (Computer Science and Application Dep, JMIT, Radaur, Yamunanagar) : Shared password key exchange. J Instn Engrs-Pt CP 2009, 90(May), 36-40.

Shared password key exchange (SPKE) is a verifier based key exchange scheme in which two parties sharing even a weak password can establish a secure session key using that password. SPKE is an improvement over the existing encrypted key exchange (EKE) and augmented encrypted key exchange (A-EKE) schemes given by Bellovin and Merritt. In this paper, limitations of the existing schemes and how these limitations can be overcome in SPKE is given.

10 ref

006528   Thomas T;Jaiswal R K;Galkate R;Singh S (National Institute of Hydrology, Regional Centre, Sagar-470 001) : Artificial neural networks based modeling of stream flows for Sindh basin in Madhya Pradesh. J Indian Wat Resour Soc 2009, 29(1), 8-16.

An artificial neural network with a feed forward back propagation algorithm has been employed for development of the model in the Sindh basin up to Madhikheda dam site. The daily rainfall and stream flow data for a period of 9 years from 1992 Co 2001 has been used for training and testing the model. It has been found that a feed forward neural network -with a at the dam site. The efficiency of the model varies between 70.36% and 94.57% with an overall efficiency of 85.14% during calibration and between 63.02% and 92.76% with an overall efficiency of 84.42% during validation. The percentage difference between the observed and computed peak flow during the calibration and validation period varies between 1.335% and 0.319% respectively. The correlation coefficient between the observed and computed flow series varies between 0.79 and 0.97. The ability of the three layer artificial neural network to relate the rainfall to the runoff response of the Sindh river basin up to Madhikheda dam site is demonstrated.

13 illus, 5 tables, 26 ref

006527   Srivastava R (Information Systems, Skhyline University College, University City of Sharjah, PO-1797, UAE, Email: rsrivastava@skylineuniversity.com) : Estimation of web proxy server cache size using G/G/1 queuing model. Int J appl Res Inf Technol Comput 2010, 1(1), 46-8.

Continuous boost in the number of Internet users has taken an exponential escalation over the years. It is becoming thorny to endow with services to all the Internet users because of infrastructural precincts of WWW. Caching web object at proxy servers has proven to be one of the preeminent alternatives for fast services. Caching web proxy server improves the performance of overall web access. Since the introduction of Web proxy servers, most of the evaluations studies are performed either on Web-replacement algorithms or methodologies of maintaining the data in cache. Only few of studies have been done assuring Web proxy server cache size. This paper describes the methodology of estimating the cache size under high busty traffic situation. An investigational evaluation study applying M/MJ1 Queuing Theory methodology is first appraised and then experimented. The study uses a trace-driven simulation framework, real traces containing approximately 10 ¹⁰ number of user's requests per unit time, and then evaluates the Optimal Cache Size (CS_optimal) using G/G/1 Queue Analysis.

2 illus, 3 tables, 17 ref

006526   Saidi W;Bouzid A;Ellouze N (NO, LSTS, ENIT- Tunis Le Belvedere B.P. 37, 1002 Tunis, Uunisie + 216 71 874 700, + 216 71 872 729) : MPM method and DYPSA algorithum evaluation for GCI detection in a noisy speech signal. Int J appl Res Inf Technol Comput 2010, 1(1), 93-105.

Deals with the evaluation and the comparison of two methods for determining glottal closure instants (GCIs) front the speech signal. These methods are the Multi-scale Product Method (MPM) and the Dynamic Programming Phase Slope Algorithm (DYPSA). The MPM consists of determining abscissa of peaks appeared on the product of wavelet transform coefficients at three adjacent dyadic scales. The wavelet used to compute the product is the quadratic spline function. However, the DYPSA algorithm is based on the group delay function to generate the GCI candidates and the dynamic programming technique to select the true GCIs. The comparison of the two algorithms is operated without noise and with additive Gaussian noise at various SNR levels. The evaluation is operated on the Keele University database. Results show that the MPM is more robust to noise than the DYPSA with a good detection rate nearby 90% at an SNR level of 0 dB and a small false alarm rate. Besides, the DYPSA is more sensitive to noise with a good detection rate of 20% at 0 dB and a high false alarm rate surpassing 70%.

12 illus, 22 ref

006525   Raninga N (M.Ed. Dep, T.N. Rao College of Teacher Education, Rajkot, Gujarat, Email: nisha.edu@gmail.com) : Effectiveness of CAI for teaching of mathematics of standard VII. J Adv dev Res 2010, 1(2), 186-7.

The importance of using computers in a mathematics class may not be limited to the ability of computer assisted instruction (CAI) to improve learning; rather, computer use adds another dimension to the teacher's repertoire of strategies, which may improve overall learning. To make the teaching of mathematics effective a number of teaching methods and technologies are being evolved, computer assisted instruction (CAI) is one of them. In present study an attempt has been made to compare effectiveness of CAI method and traditional method of teaching "Mean, Median and Mode" unit of mathematics of class VIIth standard. A total of 66 students from the VIIth class of a Gujarati medium higher secondary L.B.S school in Rajkot were chosen as a sample. Further they were divided into two equal competent groups' i.e. experimental and controlled group on the basis of performance in the score of mathematics test. After every experiment, achievement-test was administered and the results were evaluated and analyzed by considering appropriate statistical measures like mean, standard deviation (SD) and t-value. The analysis reveals that the t-value was significant in case of experimental group. So, the researcher has rejected the null hypothesis and concluded that CAI method was effective for teaching mathematics to the VIIth standard students as compared to the traditional method. This will beckon a step further towards quality secondary education.

2 tables, 4 ref

006524   Rahman M Z;Pathan A S K (NO, Grants Commission of Bangladesh Univ, Bangladesh, Email: ziaiut96@gmail.com) : Submarine cable in Bangaladesh-its prospects, present status, and challenges ahead. Int J appl Res Inf Technol Comput 2010, 1(2), 209-23.

Bangladesh has joined the submarine cable consortium in the recent past. It had been expected that the deployment of submarine cable connectivity would eliminate the digital divide and provide different e-services with an emphasis on multi services; such as data, voice, video, health care, etc. throughout the country. This work is an assessment of the current status, challenges that we are facing, and future expectations on the use of submarine cable in Bangladesh. We first briefly describe the enormous potential of submarine cable connectivity in Bangladesh. Then, we present the existing capacity of submarine cable deployed in Bangladesh and its present scenario in terms of its use. Then it goes on to compare the current prices for the different telecommunication services with that of the satellite system. To predict the demand for various telecommunication services, such as, voice, data, Internet etc., an empirical formula has been derived considering five major parameters. Though it is well-known that the economic benefits of having a reliable telecommunication infrastructure are numerous, at present Bangladesh is lacking in the deployment of appropriate telecom infrastructure. Hence, to analyze the current status, some very basic technical and socio-economic problems of submarine cable are discussed here; also the challenges of utilizing the full potential are highlighted. This study could be helpful for other developing countries that are in the similar status like Bangladesh.

^ccr11 illus, 6 tables, 8 ref

006523   Perkins A L;Yenduri S (NO, , 730 East Beach Blvd, Long Beach, MS 39560 Southern Mississippt Univ, Email: louise.perkins@usm.edu) : Three point smoothing interpolant. Int J appl Res Inf Technol Comput 2010, 1(2), 170-4.

Design an interpolation function with a built-in smoother. The function is a piecewise continuous interpolation, with separate knot and interpolation points. The combined interpolate avoids smoothing 'a posteriori', and hence the final functional approximation is still an interpolating function, lying within the originally designed approximation space. The method requires only classical numerical approximations.

13 ref

006522   Neogi M;Battacherjee V;Mahanti R (IM Dep, Xavier Institute of Social Service, Ranchi, Email: madhumitasingha@rediffmail.com) : Pair-programming and early testing skills of students. Int J appl Res Inf Technol Comput 2010, 1(2), 224-32.

Pair programming is a methodology in which two people work together and periodically switch between the roles of driver and navigator. Instead of partitioning a task into a number of activities, here each member performs a different activity alone; in pair work both partners perform each activity together. Pair programming concepts have been introduced in the classroom and students' reaction to the same has been presented. Further, this paper presents the results of a study conducted to assess the pair programmers' as well as individual programmers' ability and eagerness to begin with early testing while writing programs or developing semester projects.

1 illus, 1 table, 36 ref

006521   Nadin M (Institute of Research in Anticipatory Systems, Texas at Dallas Univ, AT-10, West Campbell Road Richardsan TX-750850 3021) : Anticipatory computing : froma high-level theory to hybrid computing implementations. Int J appl Res Inf Technol Comput 2010, 1(1), 1-27.

The perspective of natural phenomena as computational expression can help us find ways to carry out anticipatory computing. With this goal in mind, we can reach back to Feynman's attempt to define quantum computation. His understanding that space-time states can be defined not only in reference to the past and the present, but also to the future proves significant for showing how anticipatory processes can be computationally simulated. Anticipatory computing is embodied in adaptive, non-deterministic, and open-ended information processes. Given the realization that failure to acknowledge anticipation results in major breakdowns (such as the current global financial crisis), the need for anticipation-based computational applications is higher than ever. In this article, an anticipatory control mechanism implemented for the automotive industry is presented.

14 illus, 49 ref

006520   Mohamed Esmail S;Dhanavandan S;Saravanan T; Selvaraj S (DLIS, Annamalai Univ, Annamalai Nagar, Email: kdhana_kect@yahoo.com) : Use of internet by engineering college students in Tiruvannamalai district (TN)-a study. Indian J Inf Libr Soc 2010, 23(1-2), 69-84.

This study attempts to examine the characteristics and internet using behaviour of the respondents studying in the engineering colleges at Thiruvannamalai district. This study investigates the current state-of-the art of information through internet. The following methods were used to collect data for the investigation.(a) questionnaire method, (b) semi structured interviews with the librarians, (c) observational visits to the library. The data collected were analysed and inferences made which based on standard statistical methods. The finding of this study would assist the internet browsers to improve their level and help the institution to extend the level of services and facilities for user.

7 illus, 8 tables, 13 ref

006519   Mitra S (Computer Sciences and Technology Dep, Bengal Engineering and Science Univ, India, Email: sulata@cs.becs.ac.in) : Resource management using route selection and vertical handoff algorithm in next generation all-IP wireless network. Int J appl Res Inf Technol Comput 2010, 1(2), 193-208.

Theprefent work is a resource management scheme using route selection algorithm and vertical handoff algorithm for next generation all-IP wireless network. It considers two different variant for scheduling and resource management in next generation all-IP wireless network. The present work considers the integration of WLAN domain and cellular domain under the control of global mobility agent. A vertical handoff controller is maintained centrally at global mobility agent to trigger route selection algorithm and network initiated vertical handoff algorithm. When a mobile node wants to initiate a session or the remaining battery power life time of a mobile node becomes equal to a threshold, it sends a route request message to the vertical handoff controller. The vertical handoff controller triggers route selection algorithm to select the most appropriate route for the mobile node so that the transmission or reception of the data packets is completed within the remaining battery power life time of the mobile node. The proposed scheme considers two different variants for scheduling and resource management. The route selection algorithm selects a single route for all the sessions of a mobile node provided by the desired resource to maintain transmission or reception of all the sessions is available in variant 1. Otherwise all the sessions of a mobile node is considered as loss of sessions. The route selection algorithm selects route for each session of a mobile node independently if the desired resource to maintain transmission or reception of a session is available in variant. Otherwise only the corresponding session of the mobile node is considered as loss of session. The vertical handoff controller also triggers vertical handoff algorithm in case the power consumption of a domain crosses a threshold. This algorithm helps to achieve load balancing and also helps to maintain the packet loss probability, call block probability, average delay and average cost of the network almost constant. Results based on a detailed performance evaluation study are also presented to demonstrate the efficacy of the proposed scheme.

8 illus, 16 ref

006518   Koner C;Bhattacharjee P K;Bhunia C T;Maulik U (Bengal Institute of Technology and Management, Santiniketan India, Jadavpur Univ, Kolkata, Email: chandan_durgapur@yahoo.com) : Password authentication technique for 3-G mobile communications. Int J appl Res Inf Technol Comput 2010, 1(2), 186-92.

Authentication of mobile subscribers and network are a challenge of future researchers due to increasing security threats and attacks with the enhanced volume of wireless traffic. 3G mobile communication system has been developed to speed up the data communication. 3G mobile communication uses two different switching techniques: circuit switching for voice and low speed data communications, and packet switching mainly for data communication, but can afford voice communication like VoIP (Voice Over Internet Protocol), video telephony, multimedia service etc. Generally high speed data communication uses packet switching process through PDSN (Packet Data Serving Node) servers. In circuit switching (3G network), authentication is mutual where both MS and MSC or network authenticate each other, but in packet switching only network (servers in PDSN) examines the authenticity of MS. In this paper, we propose a mutual authentication technique that verifies the authenticity of the subscriber as well as the network by subscriber 's password. We focus on the advantages of our proposed technique, termed as password based mutual authentication technique.

7 ref

006517   Kanmani S;Rao P C;Venkateswarlu M;Mirshad M (Computer Science and Engineering Dep, Pondicherry Engineering College, Pondicherry-605 014) : Ensemble methods for data mining. J Instn Engrs-Pt CP 2009, 90(May), 15-9.

Ensemble learning refers to a collection of methods that learn the target functions by training a number of individual learners and combine their results. The goal is to use each method just in one sub-domain of the total domain (or use a weight proportion to its reliability) and thus to achieve overall results that can be considerably better than those of individual. In this paper two classification methods Naive Bayesian classifier, K-nearest neighbour classifier are analysed to build a generic classifier using three integration methods, namely, Static Majority Voting (SMV), Weighted Majority Voting (WMV) and Dynamic Weighted Majority Voting (DWMV). These methods are evaluated experimentally by a data set. The results show that all integration methods do better than the individual classifiers.

6 illus, 3 tables, 6 ref

006516   Juan Li (Computer Science Dep, North Dakota State Univ, Pargo, USA, Email: j.li@ndsu.edu) : Ontological directory and directory load-balancing for large-scale grids. Int J appl Res Inf Technol Comput 2010, 1(1), 28-45.

If not properly organized, searching an Internet-scale grid for quality resources is like looking for a needle in a haystack-we have too large a space to explore. Authors propose an ontology directory to organize the huge chaotic grid space to multiple semantics-based sub-spaces. Participants of the grid can browse search resources through this directory. Sharing and collaborating can then be performed on related directory only. This results in an efficient and scalable grid-based integration and interoperability infrastructure. However, the ability to guarantee that the system will not be overwhelmed due to load imbalance becomes much more significant, especially when factors such as item popularity and skewing are taken into consideration. To address this problem, we propose an effective load balancing solution, which takes the peer heterogeneity and access popularity into account to determine the load distribution. Our algorithm achieves load balancing by dynamically balancing the query routing load and query answering load respectively. Experimentations illustrate that our balancing algorithms effectively balance the system load and significantly improves performance.

10 illus, 27 ref

006515   Jawarkar N P;Ahmed V (Electronics Engineering Dep, Babasaheb Naik College of Engineering, Pusad-445 215) : Signature verification using DWT and neural network. J Instn Engrs-Pt CP 2009, 90(May), 41-6.

In this work, it is proposed to use person's signature as means of authentication for computer sent message or for accessing restricted database. It was decided to use mouse as means for entering signature because of its universal availability and low cost. In this scheme, person uses mouse movement to imitate/simulate normal finger movement rhythm to insert signature. This inserted signature is processed and filtered, and discrete wavelet transform (DWT), slope features are extracted and verification is carried out using feed-forward neural network. The results obtained are highly encouraging. The various applications where this scheme can be used are also discussed. This approach is expected to relieve users from remembering passwords in applications of moderate security level without additional cost.

4 illus, 39 ref

006514   Huang S;Mulcahy J J (Computer Science & Engineering, Florida Atlantic Univ, Florida, Email: shihong@cse.fau.edu) : Software reuse in the evolution of an E-commerce system: a case study. Int J appl Res Inf Technol Comput 2010, 1(1), 59-78.

The engineering and reengineering of software interfaces between dissimilar systems is a process that is constantly evolving with respect to the techniques applied and the lessons learned from their use. While many strategies and models for such development exist today, there are times that no single defined approach appropriately fits the requirement for all real-world situations. This is particularly true of the integration and sharing of data among modern e-commerce software systems and large, mature multi-channel legacy systems. This paper details the initial and subsequent evolutions of one such e-commerce software interface. Lessons learned from each evolution were used to improve upon the next, ultimately resulting in a highly maintainable and scalable product.

5 illus, 34 ref

006513   Capurro R;Takenouchi T;Kawasaki L M Tkach; Iitaka T (NO, Steinbis Hochschule, Berlin) : On the relevance of angeletics and hermeneutics for information technology. Int J appl Res Inf Technol Comput 2010, 1(2), 233-9.

Deals with the relevance of 'angeletics' (from Greek 'angelia' = message) or message theory and hermeneutics or theory of interpretation for information technology. In the first paragraph the difference between the concepts of 'information' and 'message' is explained. Different information concepts have given rise to the so-called "Capurro' s trilemma" which is briefly explained in the second paragraph. The power of selecting information from a message becomes a challenge for present democracies facing digital globalization. International regulations are needed no less than "technologies of the self (M. Foucault). Angeletics is the implicit foundation of hermeneutics as explained in the next paragraph. We live in message societies which means that the ethics of traditional mass media are not enough for dealing with the new technological and societal challenges. The last paragraph opens a dialogue with Regis Debray 's "mediologie " and envisages the future task of empirical angeletics.

18 ref

006512   Campbell C E A;Shah I A;Loo K K (School of Engineering and Design, Brunel Univ, West Londan, Uxbridge, UK. UB8 3PH) : Medium access control and transport protocol for wireless sensor networks: an overview. Int J appl Res Inf Technol Comput 2010, 1(1), 79-92.

Wireless Sensor Networks are an emerging technology, poised for rapid market growth and are being increasingly deployed for surveillance and monitoring applications. These networks suffer from severe congestion, packet loss, unfair utilization of bandwidth and unreliable data delivery to destination. Owing to the revolution of new technology, wireless sensor networks should be able to cope with multimedia traffic and delivery of data by a specific time. In this paper an overview of medium access control and transport layer protocols has presented and the recommendation of a cross layer design among the two layers has been discussed in order to alleviate the problems encountered and disunity by these two layers. Having an overall improvement with these two layers will conserve on energy consumption.

7 illus, 29 ref

006511   Bhosale V;Ingole J (Computer Engineering Dep, Atharva College of Engineering, Mumbai-400 095) : Mining gene expression data. J Instn Engrs-Pt CP 2009, 90(May), 20-6.

Describes the features of software developed to retrieve relevant data from clinical and genomic data warehouse applying mining techniques. Clinical and genomic data that has been populated from a variety of sources into a database schema provides efficient method for storing, retrieving and analysing data. This software provides facilities for querying the data warehouse through a query builder, performs analysis through regular OLAP(rol/-up, drill-down, slice, dice, and pivot) and statistical operations (t-test, ANOVA, correlation), and supports robustness, and knowledge discovery. The objectives of the software are to support regular and statistical OLAP operations, to provide extensibility and knowledge discovery.

9 illus, 4 ref

005454   Tyagi N K;Vyas A;Nair V S (Computer Science & Engineering Dep, Dronacharya College of Engineering, Gurgaon-123 506, Email: narendratyagi21@gmail.com) : New advanced internet mining techniques. Dronacharya Res J 2010, 2(1), 136-40.

Internet mining technique is the application of data mining techniques to discover patterns from the Internet. It is the process of mining internet access logs or other information using browsing and access patterns on web localities. Despite its critical role, the management of this data- from collection and transmission to storage and its use within applications-remains disconcertingly ad hoc. Internet measurement data provides the foundation for the operation and planning of the networks comprising the Internet which is a necessary component in research for analysis, simulation, and emulation. This paper examines several of the challenges faced in collection and archive large volumes of network measurement data. This paper also outlines architecture for Internet data repository - designed to create a framework for collaboratively addressing these challenges.

1 illus, 1 table, 12 ref

005453   Srivastav A;Srivastav N;Mathur S (Mechanical Engineering Dep, Dronacharya Engineering College, Gurgaon-123 506, Email: achin.srivastav@rediffmail.com) : Generative computer aided process planning for rotational parts. Dronacharya Res J 2010, 2(2), 85-94.

Computer-Aided Process Planning (CAPP) is the link between design and manufacturing in a Computer-Integrated Manufacturing (CIM) environment. CAPP has evolved to simplify and improve process planning and achieve more effective use of manufacturing resources. CAPP forms on imperative connection between design and manufacturing operations in the Computer Integrated Manufacturing (C.I.M.) environment plans so that functions, such as process selection, tool selection, featured sequencing, and machine tool selection can be performed without human intervention while the CAPP systems built using different approaches have been tackling process planning problems, they have achieved limited success towards performing as an intelligent process planning system. In the present work, a generative process planning system for machining of rotational parts is designed, developed and implemented. The system encompasses various process planning functions, sequencing of operations, selection of operations, machine tool selection, determination of cutting conditions and machine time calculations. An attempt has been made to develop CAPP system for rotational components.

5 illus, 4 tables, 20 ref

005452   Singla K;Gupta A;Prasad B M K (NO, Royal Bank of Scotland, Gurgaon-122 001) : Optimizing financial trading systems by integrating computer based modelling in virtual reality environment. Dronacharya Res J 2010, 2(1), 102-9.

The financial industry is witnessing major changes. The financial market is shifting from an old to a new trading model that introduces major structural changes to the market and new roles for market participants. In all these developments, there is a central role for human intelligence that can potentially influence the pattern of change and direct appropriate decisions in adapting to change. The principal aim of this paper is to introduce new principles for computer-based modelling - Empirical Modelling (EM) - that can potentially address these concerns. The key idea in EM is to establish a more intimate relationship between the computational activity and the human action and interpretation associated with each situation. This paper discusses the prospects for developing new environments for Virtual Trading that combine Virtual Reality (VR) modelling with a new approach to computer-based modelling that engages the participants with electronic components and the external world simultaneously, operating through interfaces that complement each other. It also addresses the problem of developing software that takes into account the human factor, the integration of the social and technical aspects, human insight, the experiential and situated aspects, and group social interaction. The aim is to complement the power of the computer to automate action by enabling participants to intervene intelligently when human interpretation and discretion is required as input, or singular conditions arise.

2 illus, 12 ref

005451   Sahu V (Electronics & Communication Engineering Dep, Dronacharya College of Engineering, Gurgaon-123 506, Email: vinitasahu@yahoo.co.in) : Neural network based character recognition. Dronacharya Res J 2009, 1(1), 126-30.

Presents an innovative approach for the recognition of typed characters. In this approach the character image is converted into a reduced matrix. The training used is supervised training and the learning rale used is Perceptron Learning rule. The input layer of network consists of 35 neurons and the output layer of network consists of 26 neurons. The recognition rate is found to be around 99% with different values of learning rates on the standard database.

2 tables, 13 ref

005450   Rahul Rishi;Khatri R (Computer Science & Engineering Dep, Technological Institute of Textile & Sciences, Bhiwani-127 021, Email: rahulrishi@rediffmail.com) : Cloud computing: the present and the road-map ahead. Dronacharya Res J 2010, 2(2), 146-51.

This describes cloud computing, a next generation technology that uses the Internet and central remote servers to maintain data and applications. The paper provides an overview of cloud, its architecture, characteristics and advantages. Some applications of this new computing paradigm are presented. The future prospects of cloud computing are also discussed in the paper.

3 illus, 8 ref

005449   Rahul Kumar;Kumar P (Computer Science & Engineering Dep, Dronacharya Engineering College, Gurgaon-123 506, Email: rahulmese@gmail.com) : Automation methodology for subsystem in component based software system. Dronacharya Res J 2010, 2(2), 116-21.

Subsystem test automation refers to the activities and efforts that intend to automate engineering tasks and operations in a software test process using well-defined strategies and systematic solutions. Subsystem test automations are speed up a component testing process, and to reduce component testing cost and time during a component life cycle. Subsystem test automation (STA) methodology describes the different steps that implement on any software to evaluate the reusability of component in component based software system. Automation of component testing elaborates the effective utilization of component in component based software system (CBSS). Systematic performance testing ensure the component to processing speed, throughput, reliability, availability, scalability, and system resource usage It free engineers from tedious and redundant manual testing operation. To increase the quality and effectiveness of a component test process by achieving predefined adequate test criteria in a limited schedule. In past years, many businesses and organizations spent much effort on automating component test processes.

2 illus, 12 ref

005448   Parvinder Singh;Jindal S (Computer Science & Engineering Dep, Deenbandhu Chhotu Ram Science & Technology Univ, Murthal-131 039, Email: parvinder23@rediffmail.com) : Utilizing client caching for web navigation system. Dronacharya Res J 2010, 2(2), 60-4.

Researchers work hard to find ways to design better Information Architecture for websites. Navigation system is a part of information architecture. Wide research is done to find parameters which can be added in a navigation system so that navigation for any type of user becomes easier and user never gets frustrated. But due years of research for web navigation system led to navigational burden. This burden is mainly on web server. So we must find ways to reduce this burden from server and try to make use of under utilized client resources. This paper is about finding an intermediate path that uses both client resources as well as server resources for implementation of web navigation system.

9 ref

005447   Panda S P;Bharadwaj K (Information Technology Dep, Dronacharya Engineering College, Gurgaon-123 506, Email: s.panda@dronacharya.info) : Computer aided S/W engineering (case) tool - a role in formal specification for critical system. Dronacharya Res J 2010, 2(2), 36-46.

The main benefits of formal methods stem from their use early in the software development lifecycle. So, we need to find ways of making them more accessible to end users. The uses of prototypes and of domain-specific notations are examples of how we might do this. In this paper we try to examine what industry really needs from formal specification techniques. Firstly, the background is portrayed to the use of formal techniques showing how formality is integrated into the process. We subsequently look at the role of formal specifications in critical development and analyze the important questions. Finally, conclude with some lessons learned about for formal specification techniques and the tools which support them in reducing risks, costs and helping to foster fruitful relations in situations which are often fraught with confrontation.

3 illus, 14 ref

005446   Nair S V;Dawar A;Sharma G (Computer Science & Engineering Dep, Dronacharya Engineering College, Gurgaon-123 506, Email: hodcse@dronacharya.info) : CLI: new evolution of next generation firewall. Dronacharya Res J 2010, 2(2), 152-4.

"FIREWALLS" are essential aspects of all networks. However they are complex and if not correctly configured and managed may result in security breaches. A Firewall is a combination of hardware and software used to implement a security policy governing the network traffic between two or more networks, some of which may be under your administrative control (e.g., your organization's networks) and some of which may be out of your control (e.g., the Internet). A firewall commonly serves as a primary line of defense against external threats to your organization's computer systems, networks, and critical information. Firewalls can also be used to partition your organization's internal networks, reducing your risk from insider attacks. These firewalls establish a security perimeter that aims to block (or heavily restrict) both incoming and outgoing network communication. The practices in this module will address Designing, Installing, Deploying firewalls. The traditional text-based Command Line Interface (CLI) is a powerful but difficult tool to use. It is inherently sequential requiring multiple commands. With features such as AutoSecure it is possible to automatically generate device configuration code. Furthermore firewall implementation is relatively simple with configuration code again being automatically generated. This project deals with the setting up of firewall, configuring it as per requirements along with STATE TABLE, NAT, RELAY, DHCP, PORT FORWARDING and RRD GRAPHS to secure various scenarios in order to implement the security of the network.

1 illus, 6 ref

005445   Mahajan A N (Electronics & Communication Dep, Dronacharya College of Engineering, Gurgaon-123 506, Email: aparnanmahajan@yahoo.co.in) : Cloud computing looms big on the horizon. Dronacharya Res J 2009, 1(1), 70-4.

"Cloud computing" is basically the latest incarnation of grid computing, utility computing, virtualization and clustering. It differs in that it provides the ability to connect to software and data living on the Internet (the cloud) instead of on a hard drive or local network. Since IT is always on the lookout for new and better ways to increase capacity or add capabilities on the fly without investing in new infrastructure, training new personnel, or licensing new software, cloud computing holds much promise. It is, however, still in a nascent stage.

3 illus, 5 ref