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Euler vector: a combinatorial signature for gray-tone images

Euler vector: a combinatorial signature for gray-tone images

引用

international conference on information technology: coding and computing (itcc)

作者： A. Bishnu B.B. Bhattacharya M.K. Kundu C.A. Murthy T. Acharya Indian Statistical Institute Kolkata India Intel Corporation Chandler AZ USA

A new combinatorial characterization of a gray-tone image, called an Euler vector, is proposed. The Euler number of a binary image is a well-known topological feature, which remains invariant under translation, rotation, scaling, and rubber-sheet transformations of the image. An Euler vector comprises of a 4-tuple, where each element is an integer representing the Euler number of the partial binary image formed by the four most significant bit planes of the gray-tone image. Experimental results demonstrate the robustness of the Euler vector under compression and inclusion of noise followed by filtering. The vector is topologically invariant and can be used for image indexing and retrieval.

关键词： Image coding Image retrieval Image databases Noise robustness Filtering Spatial databases Reflective binary codes Pixel Indexing Digital images

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Recruitment filtering with personality-job fit model

Recruitment filtering with personality-job fit model

引用

international conference on information technology: coding and computing (itcc)

作者： S. Supjarerndee Y. Temtanapat U. Phalavonk Faculty of Information Technology King Mongkut''s Institute of Technology North Bangkok Bangkok Thailand Computer and Info. Sci. Department Faculty of Applied Science KMITNB Bangkok Thailand Mathematics Department Faculty of Applied Science KMITNB Bangkok Thailand

Many job applications on the Web provide only simple Boolean comparison using only basic information requirements (i.e., degree, age) for searching and matching jobs to candidates. The net effect is too many 'hits'. We showed that personality is an important factor for the hiring process and satisfaction of employers and employees. In designing better filters for searching and matching a job application on the Web, we considered this factor with general job requirements and then combined it with our matching process. We have tested our model using data obtained from applicants who applied for jobs with a company in Thailand. The results show that we are able to give a better match than that achieved using basic qualifications only.

关键词： Recruitment Employment Internet information technology Mathematics Job design information filtering information filters Matched filters Testing

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Analysis of combining multiple query representations with varying lengths in a single engine

Analysis of combining multiple query representations with va...

引用

international conference on information technology: coding and computing (itcc)

作者： A. Chowdhury S. Beitzel E. Jensen America Online Inc. USA Information Retrieval Laboratory Department of Computer Science Illinois Institute of Technology USA

We examine the issues of combining multiple query representations in a single IR engine. Differing query representations are used to retrieve different documents. Thus, when combining their results, improvements are observed in effectiveness. We use multiple TREC query representations (title, description and narrative) as a basis for experimentation. We examine several combination approaches presented in the literature (vector addition, CombSUM and CombMNZ) and present a new combination approach using query vector length normalization. We examine two query representation combination approaches (title + description and title + narrative) for 150 queries from TREC 6, 7 and 8 topics. Our QLN (Query Length Normalization) technique outperformed vector addition and data fusion approaches by as much as 32% and was on average 24% better. Additionally, QLN always outperformed the single best query representation in terms of effectiveness.

关键词： Engines information retrieval information analysis Laboratories Computer science Statistics information technology Frequency

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Design and generation of adaptable Web information systems with KIWIS

Design and generation of adaptable Web information systems w...

引用

international conference on information technology: coding and computing (itcc)

作者： M. Villanova-Oliver M. Gensel H. Martin C. Erb Laboratoire LSR IMAG Saint Martin d'Heres France

Web-based information systems (WIS) are now widely used for diffusing and processing information over the network. Methodological guidelines which assist WIS developers in their task must take into account the specificities of WIS (hypermedia structured information, navigation features, etc.). This paper presents KIWIS, a generator of WIS, which addresses the issue of designing and automatically deploying such WIS. Using KIWIS, designers can specify, at a conceptual level, the features of the WIS to be generated. The features are made operational by KIWIS by instantiating different models dedicated to the description of the application domain, the expected functionalities, and some features concerning adaptability. Any WIS described and generated with KIWIS can be considered adaptable since users can progressively access the content of information while the presentation of information respects the graphical charters selected or defined by users.

关键词： information systems Navigation Management information systems Proposals Data models Guidelines Web pages Web page design information management Middleware

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Results processing in a heterogeneous word

Results processing in a heterogeneous word

引用

international conference on information technology: coding and computing (itcc)

作者： Guangkun Sun Jianzhong Li Department of Computer Science and Engineering Harbin Institute of Technology China

ISBN: (纸本)0769515061

Distributed digital libraries allow users to access data of different modalities, from different information sources, and ranked by different criteria. Most applications make too many assumptions, and need too much information. We assume that each information retrieval model is satisfactory in its own context. Based on this assumption, we propose two results processing methods: Ranking by Sources (RBS) and Simply Merging Results (SMR). In RBS, we define satisfied ranking, which is the ranking satisfying most source rankings, and satisfied distance, which indicates how a specific source ranking suits the satisfied ranking. RBS groups the results by the ranked sources, which is sorted by their satisfied distances. In SMR, for each result, we substitute the normalized score for its original scores, and then merge them using normalized scores. The experiment showed that our methods are very feasible in the rapid expanding distributed digital libraries.

关键词： information retrieval Software libraries Sun Computer science Data engineering Application software Context modeling Merging Internet Fuzzy neural networks

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An automatic cache cooperative environment using ICP

An automatic cache cooperative environment using ICP

引用

international conference on information technology: coding and computing (itcc)

作者： Hsing Mei Chun-Yu Lu Chi-Chen Lai Web Computing Laboratory Computer Science and Information Engineering Department Fu Jen Catholic University Taiwan

ISBN: (纸本)0769515061

Internet Cache Protocol (ICP) is useful for constructing a cooperative cache environment on the Internet. The proxy servers exchange ICP queries and replies in order to share the cached objects with others. However, the required bandwidth of the ICP procedure in the cooperative environment is fixed no matter how high or low the ICP hit rate is. We propose a querying filter mechanism to select proper ICP queries before sending them out. With the querying filter scheme, every proxy server builds a status table to store favorite Web hosts of its neighbors. When the original hosts are requesting, those objects will be delivered freely in order to keep the ICP hit rate stable. Other queries have to be filtered for decreasing additional traffic cost. By doing so the unqualified queries will be filtered and the network bandwidth can be saved; this eventually raises the utilization of the ICP mechanism.

关键词： Cache memory Internet Bandwidth information filtering information filters Protocols Cooperative caching Web server Telecommunication traffic Costs

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QoS control for Internet delivery of video data

QoS control for Internet delivery of video data

引用

international conference on information technology: coding and computing (itcc)

作者： G.Y. Hong B. Fong A.C.M. Fong Institute of Information and Mathematical Sciences North Shore Mail Centre Massey University Auckland New Zealand Asia-Pacific CTS Center Lucent Technologies Singapore

Although the emerging Internet Protocol version 6 (IPv6) includes provision for quality-of-service (QoS) control capabilities, there is much uncertainty surrounding its widespread acceptance. The Internet is becoming an increasingly popular communication medium due to its wide geographic coverage and continuous availability. However, it is also a harsh environment for transmission of high-bandwidth video data due to severe and time-varying network constraints. Since the best-effort nature of the current Internet does not offer any QoS guarantees, it is necessary to provide sender/receiver-based QoS control to provide adequate video play-out quality at the receiver. In this paper, we investigate current QoS control techniques and propose an integrated approach to this problem.

关键词： Quality of service Streaming media Video compression Communication system control Videoconference Web and internet services Web server Protocols Uncertainty Availability

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Strategic exploitation of ERP for e-business

Strategic exploitation of ERP for e-business

引用

international conference on information technology: coding and computing (itcc)

作者： B. Akhgar J. Siddiqi S. Al-Khayatt School of Computing and Management Sciences Sheffield Hallam University Sheffield UK

Modern organisations currently face a multitude of technologies that are seeking to climb on to the budgetary agenda of management boards. Two of the main contenders are enterprise resource planning (ERP) and e-business related technologies. There appears to be a misunderstanding, which has not been well-publicised, regarding the relationship between ERP and e-business, particularly the viewpoint that ERP is a platform for e-business. This paper, based on research from an ongoing information systems (IS) investigation project at a large multinational company, examines this relationship. The paper discusses different scenarios of ERP implementation status that organisations may find themselves part of. It examines the components of e-business success, namely the visibility of information, processes and technology that will be either enabled or restricted by ERP. What transpires from this research is that, for many start-ups, e-business becomes synonymous with business in general. We argue that e-business should form part of the corporate strategy and that an IS or IT strategy should form the basis for determining ERP implementation structures, thereby ensuring that e-business requirements become the platform for ERP.

关键词： Enterprise resource planning technology management Companies Internet Consumer electronics Financial management Industrial electronics Collaborative tools Business Books

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On a certain class of algorithms for noise removal in image processing: a comparative study

On a certain class of algorithms for noise removal in image ...

引用

international conference on information technology: coding and computing (itcc)

作者： C. Cocianu L. State V. Panayiotis Department of Computer Science University of Pitesti Pitesti Romania Department of Computer Science Academy of Economic Studies Bucharest Romania Hellenic Open University Greece

The effectiveness of restoration techniques mainly depends on the accuracy of the image modeling. One of the most popular degradation models is based on the assumption that the image blur can be modeled as a superposition with an impulse response H that may be space variant and its output is subject to an additive noise. Our research aimed at the use of statistical concepts and tools for developing a new class of image restoration algorithms. Several variants of a heuristic scatter matrix based algorithm (HSBA), the algorithm HBA that uses the Bhattacharyya coefficient for image restoration, the heuristic regression based algorithm for image restoration and new approaches of image restoration based on the innovation algorithm are reported. The LMS type algorithm AMVR is presented. A comparative study is performed and reported on the quality and efficiency of the presented noise removal algorithms.

关键词： Image processing Image restoration information filtering information filters Degradation Signal processing Computer science Signal restoration Additive noise Scattering

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Efficient key-frame extraction and video analysis

Efficient key-frame extraction and video analysis

引用

international conference on information technology: coding and computing (itcc)

作者： J. Calic E. Izuierdo Multimedia and Vision Research Lab University of London UK Multimedia & Vision Res. Lab Queen Mary Univ. of London UK

Content-based video indexing and retrieval has its foundations in the analyses of the prime video temporal structures. Consequently, technologies for video segmentation and key-frame extraction have become crucial for the development of advanced digital video systems. Conventional algorithms for video partitioning and key-frame extraction are mainly implemented autonomously. By focusing the analysis on compressed video features, this paper introduces a real-time algorithm for scene change detection and key-frame extraction that generates frame difference metrics by analysing the statistics of the macro-block features extracted from an MPEG compressed stream. The key-frame extraction method is implemented using difference metrics in curve simplification by means of a discrete contour evolution algorithm. This approach resulted in a fast and robust algorithm. Results of computer simulations are reported.

关键词： Video compression Change detection algorithms Partitioning algorithms Algorithm design and analysis Indexing Content based retrieval Layout Statistical analysis Feature extraction Transform coding

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