Proceedings 13th International Conference on Data Engineering

7-11 April 1997

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  • Proceedings 13th International Conference on Data Engineering

    Publication Year: 1997
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    Freely Available from IEEE
  • Databases and the Web: What's in it for Databases?

    Publication Year: 1997, Page(s): 192
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    Freely Available from IEEE
  • Data Mining: Where Is It Heading? (Panel)

    Publication Year: 1997, Page(s): 508
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    Freely Available from IEEE
  • New And Forgotten Dreams In Database Research

    Publication Year: 1997, Page(s): 573
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (62 KB)

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  • The Constraint-Based Knowledge Broker system

    Publication Year: 1997
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (120 KB)

    Summary form only given. The amount of information available from electronic sources on the World Wide Web and other on-line information repositories is highly heterogeneous and increasing dramatically. Tools are needed to extract relevant information from these repositories. The Constraint-Based Knowledge Brokers project (CBKB) at RXRC Grenoble realizes sophisticated facilities for efficient info... View full abstract»

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  • The IDEA tool set

    Publication Year: 1997
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (103 KB)

    Summary form only given. The authors demonstrate the main results of the Esprit Project P6333 IDEA, which lasted from June 1992 to March 1997, whose main contributors are five industrial partners from five European countries: Bull, the main contractor (France), TXT-Informatica (Italy), Sema (Spain), Dutch PTT (Holland), and Bim (Belgium), and four research institutes: ECRC in Munich, INRIA in Pari... View full abstract»

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  • Developing and accessing scientific databases with the OPM data management tools

    Publication Year: 1997
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (116 KB)

    Summary form only given. The Object-Protocol Model (OPM) data management tools provide facilities for rapid development, documentation, and flexible exploration of scientific databases. The tools are based on OPM, an object-oriented data model which is similar to the ODMG standard, but also supports extensions for modeling scientific data. Databases designed using OPM can be implemented using a va... View full abstract»

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  • NAGS prototype-version 2.2

    Publication Year: 1997
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (108 KB)

    Summary form only given. The Native Active Object System (NAOS) incorporates an active behavior within the object-oriented database management system O/sub 2/. NAOS rules are event-condition-action (EGA) rules belonging to an O/sub 2/ database schema. The authors focus on user and temporal event detection as well as composite event detection. View full abstract»

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  • FLORID: a prototype for F-logic

    Publication Year: 1997
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (110 KB)

    Summary form only given. FLORID-F-LOgic Reasoning In Databases-is a deductive object oriented database system incorporating F-logic (M. Kifer et al., 1995) as a data definition and query language and combining the advantages of deductive databases with the rich modelling capabilities of object oriented concepts. F-logic provides complex objects, uniform handling of data and metadata, rule defined ... View full abstract»

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  • Improving the quality of technical data for developing case based reasoning diagnostic software for aircraft maintenance

    Publication Year: 1997
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (95 KB)

    Summary form only given. Time spent by airline maintenance operators to solve engine failures and the related costs (flight delays or cancellations) are a major concern to SNECMA which manufacture engines for civilian aircraft such as BOEING 737s and Airbus A340s. The use of an intelligent diagnostic software contributes to improving customer support and reduces the cost of ownership by improving ... View full abstract»

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  • W3QS-a system for WWW querying

    Publication Year: 1997
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (87 KB)

    Summary form only given. W3QL is a SQL like, high level language for accessing World-Wide Web (WWW) resident data and services, W3QL is declarative. A W3QL query specifies a graph to be matched with portions of the WWW (graph nodes corresponding to WWW pages, edges to hypertext links). A query can specify complex conditions on node contents and their relationships. A W3QL query may use existing se... View full abstract»

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  • Graphical tools for rule development in the active DBMS SAMOS

    Publication Year: 1997
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (109 KB)

    Summary form only given. Active database management systems (active DBMS) support the definition, management and execution of event/condition/action rules specifying reactive application behavior. Although the advantages of active mechanisms are nowadays well known, there is still no wide use in practice. One main problem is that especially for large rule sets, defined by different persons at diff... View full abstract»

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  • Data integration and interrogation

    Publication Year: 1997
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (97 KB)

    Summary form only given. One major concern of the Verso group at Inria is the development of technology for data integration and interrogation, especially for non traditional data formats such as structured text. The article describes aspects of Verso's technology as partly sponsored by the European Community (AQUARELLE project, Esprit IV projects OPAL and WIRE). View full abstract»

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  • The WHIPS prototype for data warehouse creation and maintenance

    Publication Year: 1997
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (106 KB)

    Summary form only given. The goal of the Whips project (WareHousing Information Project at Stanford) is to develop algorithms and tools for the creation and maintenance of a data warehouse (J. Wiener et al., 1996). In particular, we have developed an architecture and implemented a prototype for identifying data changes at distributed heterogeneous sources, transforming them and summarizing them in... View full abstract»

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  • Index of authors

    Publication Year: 1997, Page(s):591 - 592
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    Freely Available from IEEE
  • Subquery elimination: a complete unnesting algorithm for an extended relational algebra

    Publication Year: 1997
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (75 KB)

    Summary form only given, as follows. Research in the area of subquery unnesting algorithms has mostly focused on the problem of making queries more efficient at run-time by transforming subqueries into joins. Unnesting rules describe a transformation of a nested query tree or a nested SQL query into an equivalent tree or SQL query that is no longer nested. However, it is not possible to express al... View full abstract»

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  • An argument in favor of the presumed commit protocol

    Publication Year: 1997, Page(s):255 - 265
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1116 KB)

    The authors argue in favor of the presumed commit protocol by proposing two new presumed commit variants that significantly reduce the cost of logging activities associated with the original presumed commit protocol. Furthermore, for read-only transactions, they apply their unsolicited update-vote optimization and show that the cost associated with this type of transactions is the same in both pre... View full abstract»

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  • Modeling multidimensional databases

    Publication Year: 1997, Page(s):232 - 243
    Cited by:  Papers (83)  |  Patents (23)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (972 KB)

    The authors propose a data model and a few algebraic operations that provide semantic foundation to multidimensional databases. The distinguishing feature of the proposed model is the symmetric treatment not only of all dimensions but also measures. The model provides support for multiple hierarchies along each dimension and support for ad hoc aggregates. The proposed operators are composable, reo... View full abstract»

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  • Memory management for scalable Web data servers

    Publication Year: 1997, Page(s):510 - 519
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (968 KB)

    Popular Web sites are already experiencing very heavy loads, and these loads will only increase as the number of users accessing them grows. These loads create both CPU and I/O bottlenecks. One promising solution already being employed to eliminate the CPU bottleneck is to replace a single processor server with a cluster of servers. Our goal in this paper is to develop buffer management algorithms... View full abstract»

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  • Periodic retrieval of videos from disk arrays

    Publication Year: 1997, Page(s):333 - 343
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (992 KB)

    A growing number of applications need access to video data stored in digital form on secondary storage devices (e.g., video-on-demand, multimedia messaging). As a result, video servers that are responsible for the storage and retrieval, at fixed rates, of hundreds of videos from disks are becoming increasingly important. Since video data tends to be voluminous, several disks are usually used in or... View full abstract»

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  • Media asset management: managing complex data as a re-engineering exercise

    Publication Year: 1997, Page(s):139 - 148
    Cited by:  Papers (1)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (868 KB)

    Building a media asset management application involves the storing, searching, and retrieving of complex data. How this data is managed can be viewed from two perspectives-in terms of the internal representation required to allow for high-speed searching and transferring of these items between systems, but also from the end-user perspective. This paper focuses on the perspective that media asset m... View full abstract»

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  • ULIXES: building relational views over the Web

    Publication Year: 1997
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (84 KB)

    The authors consider structured Web sites, those sites in which structures are so tight and regular that one can assimilate the site, from the logical viewpoint, to a conventional database. They have argued that, with respect to structured Web servers, it is possible to apply ideas from traditional database techniques, specifically with respect to design, query, and update. They focus on the query... View full abstract»

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  • Partial video sequence caching scheme for VOD systems with heterogeneous clients

    Publication Year: 1997, Page(s):323 - 332
    Cited by:  Papers (4)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (732 KB)

    Video on Demand is one of the key application in the information era. An hinge factor to its wide booming is the huge bandwidth required to transmit digitized video to a large group of clients with widely varying requirements. This paper addresses issues due to heterogeneous clients by proposing a program caching scheme called Partial Video Sequence (PVS) Caching Scheme. PVS Caching Scheme decompo... View full abstract»

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  • Modeling business rules with situation/activation diagrams

    Publication Year: 1997, Page(s):455 - 464
    Cited by:  Papers (8)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1148 KB)

    Business rules are statements about business policies and can be formulated according to the event-condition-action (ECA) structure of rules in active database systems. However, modeling business rules at the conceptual level from an external user's perspective requires a different set of concepts than currently provided by active database systems. This paper identifies requirements on the event l... View full abstract»

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  • Scalable versioning in distributed databases with commuting updates

    Publication Year: 1997, Page(s):520 - 531
    Cited by:  Papers (2)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1080 KB)

    Presents a multiversioning scheme for a distributed system with the workload consisting of read-only transactions and update transactions, (most of) which commute on individual nodes. The scheme introduces a version advancement protocol that is completely asynchronous with user transactions, thus allowing the system to scale to very high transaction rates and frequent version advancements. Moreove... View full abstract»

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