Proceedings 2000 International Database Engineering and Applications Symposium (Cat. No.PR00789)

18-20 Sept. 2000

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  • 2000 International Database Engineering and Applications Symposium [front matter]

    Publication Year: 2000, Page(s):0_1 - viii
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    Freely Available from IEEE
  • Business-to-business connectivity and emerging protocols for E-biz

    Publication Year: 2000, Page(s):3 - 4
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (72 KB)

    Summary form only given. For many years ED1 served as the dominant protocol for e-biz over private networks. Due to the rapid spread of the Internet, several new Business-to-Business (B2B) interaction protocols have become popular, e.g., Open Buying on the Internet (OBI), RosettaNet, and Vendor-defined protocols such as Ariba??s Punchout process. We will describe these protocols, with an emphasis ... View full abstract»

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  • Open active services for data-intensive distributed applications

    Publication Year: 2000, Page(s):349 - 359
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1234 KB)

    Applications are now highly distributed, heterogeneous and scalable. They comprise autonomous, loosely coupled components, some of them being database management systems, Web servers, etc. Considering such a framework, database technology has to evolve towards cooperation and integration. We propose open and distributed active services that can be used for specifying and generating event and rule ... View full abstract»

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  • Author index

    Publication Year: 2000, Page(s):447 - 448
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    Freely Available from IEEE
  • Fuzzy and presentation algebras for web and multimedia data

    Publication Year: 2000, Page(s):134 - 142
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (632 KB)

    Web and multimedia data are becoming very important. A fundamental characteristic of these data is imprecision. Query languages for web and multimedia data must express imprecision in features matching, similarity queries and user preferences. In addition specific operators need to be introduced to organize the answers in a user friendly style. The aim of this work is to provide a formal framework... View full abstract»

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  • KhojYantra: an integrated MetaSearch engine with classification, clustering and ranking

    Publication Year: 2000, Page(s):122 - 133
    Cited by:  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (636 KB)

    Conventional search engines generally return a long ordered list of results which the users are forced to sift for getting relevant documents. It is envisaged that the search results can be greatly improved by integrating techniques, like ranking, classification and clustering. This paper explores how these three techniques can be integrated into search engine technology to achieve this goal. We i... View full abstract»

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  • Algorithms for cartogram animation

    Publication Year: 2000, Page(s):231 - 235
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (264 KB)

    We describe several value-by-area cartogram animation algorithms that can be used to visualize geographically distributed continuous spatiotemporal data that often occur in GIS systems. We implemented the algorithms as part of the graphical user interface of the MLPQ/GIS database system View full abstract»

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  • Metadata based Web mining for relevance

    Publication Year: 2000, Page(s):113 - 121
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (532 KB)

    This paper presents a relevant term discoverer, a system that discovers relevant topics of a given topic from the World Wide Web. The system mines hyperlink metadata on the basis of the association of terms in the metadata. It also applies various filtering techniques to detect false positives and false negatives. The applications of the system include: i) topic-specific information gathering syst... View full abstract»

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  • What can partitioning do for your data warehouses and data marts?

    Publication Year: 2000, Page(s):437 - 445
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (720 KB)

    Efficient query processing is a critical requirement for data warehousing systems as decision support applications often require minimum response times to answer complex, ad-hoc queries having aggregations, multi-ways joins over vast repositories of data. This can be achieved by fragmenting warehouse data. The data fragmentation concept in the context of distributed databases aims to reduce query ... View full abstract»

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  • Efficient maintenance of temporal data warehouses

    Publication Year: 2000, Page(s):188 - 196
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (648 KB)

    A temporal data warehouse can be defined as a set V of materialized views over non-temporal sources. We present a self-maintainable temporal data warehouse that, besides a set of temporal views V, has two kinds of auxiliary views: a set T of auxiliary relations containing only temporal information necessary to maintain the data warehouse and a set C of complements allowing the warehouse maintenanc... View full abstract»

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  • Architecture for the interaction and access on multimedia database systems in the context of mobile environments

    Publication Year: 2000, Page(s):224 - 230
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (492 KB)

    In mobile multimedia systems, the mobility of users, devices, and information produces new challenges for processing globally distributed information. We focus our attention on new strategies for the adaptation and integration of database techniques regarding the management of multimedia data types at the particular conditions of mobile infrastructures. We believe that object-relational database s... View full abstract»

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  • Enabling hypermedia videos in multimedia database systems coupled with realtime media servers

    Publication Year: 2000, Page(s):327 - 336
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (832 KB)

    The integrated management of standard structured data and time-dependent data is still too complex to be covered by a single system. So, there will be distinct systems such as multimedia DBMS and media servers for e.g., video data, each doing only what it can do best. However, some functions desired by users and applications necessarily involve both systems. A prime candidate for this is the use o... View full abstract»

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  • Data caching for telephony services

    Publication Year: 2000, Page(s):101 - 109
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (452 KB)

    We study client-server data caching, both with and without expiration timestamps, to assess its applicability to present and future telecommunications services such as local number portability, toll-free numbers, and mobile telephony. We perform simulation studies to evaluate the empirical performance of a variety of strategies for caching in a client-server setting. Data caching at client locatio... View full abstract»

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  • Modeling and querying XML-data

    Publication Year: 2000, Page(s):275 - 283
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (448 KB)

    The authors discuss data models and query languages for XML data. They propose a data model, called XDT, which takes care of the structural features of XML data. XDT represents XML data by means of labeled oriented graphs. With respect to other previously proposed models, XDT handles links definable in both XML and XLL. Queries are made through an SQL-like language which uses weighted path queries... View full abstract»

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  • Multimedia data access based on the sensitivity factors

    Publication Year: 2000, Page(s):319 - 326
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (504 KB)

    The paper clarifies that the main factors of sensitivity work well for accessing multimedia data. The main factors of sensitivity are the fundamental factors of human sensitivity. These are obtained by applying the factor analysis of the scores put to multimedia data for impression words. Five main factors are obtained for pictures, and four for sounds. Three main factors of sensitivity are in com... View full abstract»

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  • Bulk loading a data warehouse built upon a UB-Tree

    Publication Year: 2000, Page(s):179 - 187
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (564 KB)

    We consider the issue of bulk loading large data sets for the UB-Tree, a multidimensional index structure. Especially in data warehousing (DW), data mining and OLAP it is necessary to have efficient bulk loading techniques, because loading occurs not continuously, but only from time to time with usually large data sets. We propose two techniques, one for initial loading, which creates a new UB-Tre... View full abstract»

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  • StreamJoin: a generic database approach to support the class of stream-oriented applications

    Publication Year: 2000, Page(s):83 - 91
    Cited by:  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (620 KB)

    Today many applications routinely generate large quantities of data. The data often takes the form of (time) series, or more generally streams, i.e. an ordered sequence of records. Analysis of this data requires stream processing techniques which differ in significant ways from what current database analysis and query techniques have been optimized for. In this paper we present a new operator, cal... View full abstract»

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  • The hybrid technique for reference materialization in object query processing

    Publication Year: 2000, Page(s):37 - 46
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    Resolving object references, or reference materialization, is a fundamental operation in object query evaluation. Existing reference materialization techniques fall into two categories: pointer-based and value-based. We identify several drawbacks of existing techniques and propose a hybrid technique that combines the advantages of each category. This technique relaxes the limitations of value-base... View full abstract»

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  • Keeping Web pages up-to-date with SQL:1999

    Publication Year: 2000, Page(s):219 - 223
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (384 KB)

    From the beginnings of the World Wide Web (WWW or Web) and the definition of the Common Gateway Interface (CGI), Web site administrators have used dynamically generated HTML pages to provide up-to-date information. Due to the high resource consumption of dynamic page generation approaches, many sites have switched over to periodical updates of frequently visited pages, e.g., a headline index of an... View full abstract»

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  • Concurrency control for B-trees with differential indices

    Publication Year: 2000, Page(s):287 - 295
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (568 KB)

    We present an indexing system where a database index is divided into two parts: the main index located on disk and the differential index in the main memory. Both indices are implemented as B-trees. All updates performed by active transactions are written in the differential index. Periodically, writes of committed transactions are transferred from differential index to the main index as a batch-u... View full abstract»

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  • How to reuse former queries to facilitate the formulation of new ones

    Publication Year: 2000, Page(s):92 - 100
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (620 KB)

    Query formulation remains obstinately difficult for large classes of users. Indeed, in face of the growth in query complexity due to development of new kind of application manipulating great size of data, we notice the absence of models taking charge of the user through from specification of needs to formulation of queries. We think that users can be given effective help in query formulation by me... View full abstract»

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  • XML functionally

    Publication Year: 2000, Page(s):266 - 274
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (588 KB)

    The topic of the XML language is one of the most discussed in the IS/IT community today. The primary goal of XML is to provide marking text components and use such data for exchange among information sources. The goal of the paper is to present a database view on XML data. We formulate a type system powerful enough to describe XML data in a set- and function-oriented manner. A version of a typed &... View full abstract»

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  • An integration system of Web information sources for mobile users

    Publication Year: 2000, Page(s):250 - 253
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (264 KB)

    Today, there are many Web information sources (WISs) that are suitable for mobile users. How/when to integrate such Web contents (which may be location-dependent contents) into a new simpler WIS for mobile users will become a problem, because different mobile users need different integration. A possible solution is to allow each individual mobile user to directly define, on his PDA, which pair of ... View full abstract»

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  • Wrapping WWW information sources

    Publication Year: 2000, Page(s):431 - 436
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (572 KB)

    As information over the World-Wide Web (WWW) is proliferating rapidly and the demand to access it is also escalating, the need to efficiently and effectively make use of the various knowledge resources is highly imperative. Research to extract maximum benefit from the Internet is still in its infancy. Different research areas like data mining, information retrieval, machine learning and knowledge ... View full abstract»

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  • Time is the shadow of reactive behaviour

    Publication Year: 2000, Page(s):417 - 423
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (804 KB)

    Applications that rely on coordination of messages are frequently based on multi-agent systems or workflow systems. Both implementation platforms use a rule engine for the coordination of messages. Currently, classical production rules are used within multi-agent systems, and workflow systems tend to rely on active database solutions (i.e. triggers). It has been envisioned that subsequent applicat... View full abstract»

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