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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 (5)
    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
  • 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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  • 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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  • Dynamic performance optimization mechanism for parallel object-oriented database programming languages

    Publication Year: 2000, Page(s):405 - 409
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    Discusses dynamic performance optimization mechanisms for parallel object-oriented database programming languages. When a large number of objects are distributed on a distributed-memory parallel processor, referencing a remote object requires inter-processor communication. If those objects are not allocated properly, it may cause total performance degradation. When those objects are allocated with... View full abstract»

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  • Speculation based nested locking protocol to increase the concurrency of nested transactions

    Publication Year: 2000, Page(s):296 - 305
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    The authors propose an improved concurrency control protocol based on speculation for nested transactions and explain how it increases both intraand inter-transaction concurrency as compared to J.E.B. Moss's (1985) nested locking protocol. In the proposed speculative nested locking (SNL) protocol, whenever a sub-transaction finishes work with a data object (produces after-image), it's parent inher... 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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  • 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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  • Mediated information gain

    Publication Year: 2000, Page(s):360 - 370
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (860 KB)

    Deals with the problem of how to gain information from many heterogeneous data sources. As a solution, we propose a general framework for mediated information gain: it minimizes and supports the human burden, clearly identifies the algorithmically tractable subtasks and assures a well-understood level of quality. We identify a “mediation task” as an extended amalgamation of searching, ... 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 (2)
    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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  • SISQL: schema-independent database querying (on and off the Web)

    Publication Year: 2000, Page(s):55 - 64
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    Finding information in diverse sources, in particular on the World-Wide Web is highly relevant these days. As more and more Web sites are administered by database systems, and as information on and off the Web increasingly comes out of a database, it is crucial to be able to search databases when working with the Web. This paper introduces a novel query language which renders it possible to formul... View full abstract»

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  • Materializing a set of views: dynamic strategies and performance evaluation

    Publication Year: 2000, Page(s):424 - 428
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    The present paper focuses on a view selection method exploiting a central construct called Multi View Materialization Graph (MVMG) which provides a framework to support materialized, virtual and hybrid fragments of views. Furthermore, our approach is dynamic, i.e. materialized fragments can become virtual and vice versa. In the same way, attributes may change their status according to their update... 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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  • An XML-based architecture for adaptive Web hypermedia systems using a probabilistic user model

    Publication Year: 2000, Page(s):257 - 265
    Cited by:  Papers (5)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    Web based hypermedia systems are becoming increasingly popular as tools for user driven access to information and services. The paper presents an architecture for the development of Web based adaptive hypermedia systems. The architecture uses weighted graphs of XML documents to describe the application domain and a probabilistic model to adapt the Web site content generation and presentation to th... 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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  • A formal background to build constraint objects

    Publication Year: 2000, Page(s):7 - 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    Constraint databases exploit a fundamental duality: (i) a constraint (first-order formula) with free variables is interpreted as a set of database tuples that satisfy it; (ii) conversely, a database object can be viewed as a constraint. This enables us to use constraints as basic data types in the underlying DBMS and to enjoy the expressiveness of first-order logic and most of the advantages of co... View full abstract»

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  • Design of RapidBase-an active measurement database system

    Publication Year: 2000, Page(s):75 - 82
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    In data-intensive industrial on-line applications utilizing live process data, one faces an unusual set of database requirements. The process measurement data need to be acquired at great speed, organized in time series and made available for time-based retrieval. Active capabilities and functional extensibility are needed to implement a flexible data-driven processing paradigm. An efficient trans... 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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  • A study on the interaction between interscheme property extraction and type conflict resolution

    Publication Year: 2000, Page(s):25 - 33
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    Studies the interaction between the extraction of heterogeneous database inter-scheme properties, such as synonymies, homonymies and type conflicts (which are exploited for defining the semantics of the involved schemes for integration purposes), and the resolution of type conflicts. As a matter of fact, the transformations required by type conflict resolution could invalidate some of the detected... View full abstract»

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  • Fuzzy functional dependency and its application to approximate data querying

    Publication Year: 2000, Page(s):47 - 54
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    Reviews a new definition of fuzzy functional dependency based on conditional probability and its application to approximate data reduction related to the operation of projection in classical relational databases in order to construct fuzzy integrity constraints. We introduce the concept of partial fuzzy functional dependency, which expresses the fact that a given attribute X does not determine Y c... 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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  • 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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