Proceedings 11th International Workshop on Database and Expert Systems Applications

4-8 Sept. 2000

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Displaying Results 1 - 25 of 177
  • Eleventh International Workshop on Database and Expert Systems Applications

    Publication Year: 2000, Page(s):iii - xxii
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    Freely Available from IEEE
  • POWER: programme for an ontology based working environment for modeling and use of regulations and legislation

    Publication Year: 2000, Page(s):327 - 334
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (682 KB)

    The Dutch Tax and Customs Administration (DCTA) conducted a research programme in which methods were developed that support a systematic translation of (new) legislation into the DTCA's processes. In the POWER programme, the knowledge capitalization/knowledge codification approach is combined with an organization dynamics approach in which the DTCA's knowledge processes are aligned. As a result, t... View full abstract»

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  • Copyright protection of cultural heritage multimedia data through digital watermarking techniques

    Publication Year: 2000, Page(s):935 - 939
    Cited by:  Papers (6)  |  Patents (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (541 KB)

    Digital watermarking has been revealed to be an efficient technique to cope with the problem of intellectual property rights (IPR) protection of multimedia data. This technology embeds into the data an unperceivable digital code, namely the watermark, carrying information about the copyright status of the work to be protected. In this paper, the practical feasibility of IPR protection of multimedi... View full abstract»

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  • Author index

    Publication Year: 2000, Page(s):1161 - 1164
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    Freely Available from IEEE
  • A comparative study of selected parallel video servers

    Publication Year: 2000, Page(s):669 - 673
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    This paper compares different selected and representative parallel video servers, including our server SESAME-KB, by the means of their architectural design, striping, scheduling, caching and admission policy. It is shown that these parallel video servers can support a high number of concurrent accesses, but will also reveal missing components, as bottlenecks. Finally we point to further developme... View full abstract»

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  • Optimizing the parSOM neural network implementation for data mining with distributed memory systems and cluster computing

    Publication Year: 2000, Page(s):661 - 665
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    The self-organizing map is a prominent unsupervised neural network model which lends itself to the analysis of high-dimensional input data and data mining applications. However, the high execution times required to train the map limit its application in many high-performance data analysis application domains. We discuss the parSOM implementation, a software-based parallel implementation... View full abstract»

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  • A semantic framework for the design of data distribution schemes

    Publication Year: 2000, Page(s):653 - 660
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    We propose a semantic framework (meta model and rules) supporting correctness and completeness of data distribution schemes for homogeneous databases. This framework supports model fragmentation, instance fragmentation and conditional fragmentation, based either on a single condition or a conjunction of two conditions. It also supports the allocation of fragments. We also present a solution for de... View full abstract»

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  • Combining strategy and deliberation in the requirements engineering process

    Publication Year: 2000, Page(s):949 - 953
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    Methods for requirements engineering are in abundance. They fall into two broad categories. Those that advocate a prescriptive stance and those that reject a methodical approach by adopting a descriptive stance. Of course no `silver bullet' has been found in the way of working within the discipline of requirements engineering. We argue that each of the two paradigms can make a significant contribu... View full abstract»

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  • Using section-semantic relation structures to enhance the performance of Web search

    Publication Year: 2000, Page(s):512 - 516
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    Along with the fast growth of the World Wide Web, search engine has become one of the most popular services on it. Improvements on the performance of search engines will bring about great economic profit. Aiming at promoting the effectiveness of Web search, a new approach established on the basis of the new concept of section-semantic relation structure is presented. “section” is defin... View full abstract»

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  • Query scrambling in distributed multidatabase systems

    Publication Year: 2000, Page(s):647 - 652
    Cited by:  Papers (4)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    This work addresses the problem of efficient query processing in multidatabase systems distributed over wide-area networks. The solution unifies the query scrambling and reduction approaches to dynamic optimization of query processing plans at the data integration stage. The paper presents a new data integration algorithm based on query scrambling and the extended reduction technique. The algorith... View full abstract»

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  • Interacting with spatiotemporal digital libraries

    Publication Year: 2000, Page(s):698 - 702
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    Spatiotemporal digital libraries have special characteristics that have to be taken into account when analysing user interaction requirements. By spatiotemporal libraries, we mean digital data repositories where the data as well as user queries and retrievals are focused predominantly on the space and time dimensions. The paper analyses the particular requirements for user interactions in this bro... View full abstract»

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  • Description and retrieval across multiple media formats

    Publication Year: 2000, Page(s):940 - 944
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    In a variety of contexts, as in multimedia distance learning systems, multimedia analysis systems or for general information purposes, the task of retrieving appropriate information from a large number of multimedia documents has gained increasing importance. This paper looks at approaches to add meta data or descriptions to multimedia documents, making the semantics contained in these documents a... View full abstract»

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  • Security issues in mobile ecommerce

    Publication Year: 2000, Page(s):412 - 425
    Cited by:  Papers (9)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (556 KB)

    Mobile e-commerce enables the mobile user to buy and pay for things, to pay his bill or to make a bet via his mobile phone when on the move, anywhere and at any time. It will bring conveniency and contribute to improve life quality of the users. However, in order to be successful, security measures must be strong enough to protect the user from illegal abuses and to get confidence from him. Unfort... View full abstract»

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  • Adaptive automatic classification on the Web

    Publication Year: 2000, Page(s):504 - 511
    Cited by:  Papers (2)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    The paper explores the motives and issues associated with automatic classification on the Web. Experimental software tools are introduced which enable the automatic generation of vocabularies, representing any given classification scheme, using pre-classified documents. An internal representation of the required classification hierarchy is automatically generated and subsequent documents are filte... View full abstract»

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  • PPS-a parallel partition sort algorithm for multiprocessor database systems

    Publication Year: 2000, Page(s):635 - 644
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    A new algorithm, parallel partition sort (PPS), is proposed which is an improved range partition sort algorithm to handle the problem of workload imbalance, especially partition imbalance and heterogeneous imbalance, in a shared-nothing multiprocessor database environment. The new algorithm partitions the key range into a number of range intervals, then a fast internal sorting method is applied on... View full abstract»

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  • A metadata-based approach to define a standard to visual queries in GIS

    Publication Year: 2000, Page(s):693 - 697
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    This article proposes a framework that creates a standard to formulate visual queries in geographical information systems (GIS). The queries use visual elements and visual spatial operators, where each element is represented according to a geographic data visual standard. This standard is proposed to be based on a digital geospatial metadata standard, and based on it we define a new geographic vis... View full abstract»

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  • Temperature equilibrium in multi-agent manufacturing systems

    Publication Year: 2000, Page(s):259 - 264
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    The paper explores some ideas on the maintenance of load equilibrium in a multi-agent manufacturing system, using concepts such as temperature, relative heat and latent heat. The material presented is based on work done as part of the international project on Holonic Manufacturing Systems. Furthermore, the paper investigates the nature of agent cooperation and examines whether a simple coordinatio... View full abstract»

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  • QoS management by mobile agents in multimedia communication

    Publication Year: 2000, Page(s):407 - 411
    Cited by:  Papers (6)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    We propose a mobile agent based QoS management system to satisfy the five functional principles of QoS architecture, i.e., integration, separation, transparency, asynchronous resource management and performance. The mobile agent paradigm is a unique paradigm in contrast to the traditional client/server paradigm in a problem inherently distributed and complex, such as QoS management. This paradigm ... View full abstract»

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  • Summarizing video datasets in the spatiotemporal domain

    Publication Year: 2000, Page(s):906 - 912
    Cited by:  Papers (14)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    We address the problem of analyzing and managing complex dynamic scenes captured in video. We present an approach to summarize video datasets by analyzing the trajectories of objects within them. Our work is based on the identification of nodes in these trajectories as critical points that describe the behavior of an object over a video segment. The time instances that correspond to these nodes ar... View full abstract»

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  • Agent managed multi database system design for the stock broking domain

    Publication Year: 2000, Page(s):471 - 476
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    Autonomous software agent technology and multi database systems (MDBS) are two highly interrelated fields of study. They are both studies on distributed systems with the former focusing on function and the latter on data. Autonomy is one of the main goals pursued. We provide an illustrative example of a MDBS design that works within an agent environment. The analysis of specific problems usually t... View full abstract»

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  • Interacting with geographic databases: a focus+context approach

    Publication Year: 2000, Page(s):869 - 875
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    We present results on the design of a visual interaction environment for geographic information systems. We envision an exploration of the database where, starting from an abstract view, more detailed information is disclosed on demand, and visualized in a fish-eye view fashion. The interaction process is a sequence of views on the database, each displayed by a map in which topological properties ... View full abstract»

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  • Quorum-based replication of objects

    Publication Year: 2000, Page(s):33 - 37
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    We discuss a novel object-based locking (OBL) protocol to lock replicated objects by extending the traditional quorum-based protocols to objects with abstract methods. If a pair of methods op1 and op2 are compatible, the summation of the quorum numbers of op1 and op2 is not larger than the number of replicas in the OBL protocol. We propose, for the first... View full abstract»

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  • One world under a groove-handling Internet mapping as music

    Publication Year: 2000, Page(s):499 - 503
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    A computer science research outcome from theoretical work on public transport information systems has led to the discovery of a novel technique for the handling of spatial co-ordinate data over the Internet. The approach handles many standard geographic systems functions such as mapping, routing and spatial searches but replaces the GIS server application with small “one-hit” CGI progr... View full abstract»

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  • Economic coordination mechanisms for holonic multi-agent systems

    Publication Year: 2000, Page(s):236 - 240
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    This paper discusses the importance of coordination mechanisms for holonic multi agent systems. Specifically the design of mechanisms for worth-oriented domains with transferable utility is discussed. The specific focus is on how to allocate a set of resources to a set of agents. Agents may express preferences for the complementary use of resources. Agents are assumed to be self-interested. An exa... View full abstract»

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  • An overview of parallel query optimization in relational systems

    Publication Year: 2000, Page(s):629 - 634
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    We try to describe synthetically the main problems which arise in the design of parallel relational database systems. Due to the breadth and the depth of the topic, it is obviously very hard to capture all relevant issues. The issues that are tackled include data placement, static and dynamic query optimization, resource allocation, statistics extraction, and cost estimation View full abstract»

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