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)

    First Page of the Article
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  • The Constraint-Based Knowledge Broker system

    Publication Year: 1997
    Cited by:  Papers (1)
    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 (7)
    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:  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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  • Object Relater Plus: a practical tool for developing enhanced object databases

    Publication Year: 1997, Page(s):412 - 421
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (868 KB)

    Object Relater Plus is a practical tool currently being used for research and development of enhanced object databases (ODBs). The tool, which is a prototype object database management system (ODBMS), provides two languages that are compatible with the ODMG-93 ODBMS standard yet enhance it in some significant ways. The Object Database Definition Language (ODDL) allows object relationships to be be... View full abstract»

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  • Titan: a high-performance remote-sensing database

    Publication Year: 1997, Page(s):375 - 384
    Cited by:  Papers (50)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (896 KB)

    There are two major challenges for a high performance remote sensing database. First, it must provide low latency retrieval of very large volumes of spatio temporal data. This requires effective declustering and placement of a multidimensional dataset onto a large disk farm. Second, the order of magnitude reduction in data size due to post processing makes it imperative, from a performance perspec... View full abstract»

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  • Modeling multidimensional databases

    Publication Year: 1997, Page(s):232 - 243
    Cited by:  Papers (73)  |  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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  • Adding full text indexing to the operating system

    Publication Year: 1997, Page(s):386 - 390
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    Many challenges must be faced when incorporating full text retrieval into the operating system. The search engine must be a nearly invisible, natural extension to the operating system, just like the file system and the network. The search engine must meet user expectations of an operating system, specifically in areas such as performance, fault tolerance, and security. It must handle a very hetero... View full abstract»

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  • Semantic query optimization for object databases

    Publication Year: 1997, Page(s):444 - 453
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    Presents a technique for semantic query optimization (SQO) for object databases. We use the ODMG-93 (Object Data Management Group) standard ODL (Object Database Language) and OQL (Object Query Language) languages. The ODL object schema and the OQL object query are translated into a DATALOG representation. Semantic knowledge about the object model and the particular application is expressed as inte... View full abstract»

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  • Physical database design for data warehouses

    Publication Year: 1997, Page(s):277 - 288
    Cited by:  Papers (21)  |  Patents (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (956 KB)

    Data warehouses collect copies of information from remote sources into a single database. Since the remote data is cached at the warehouse, it appears as local relations to the users of the warehouse. To improve query response time, the warehouse administrator will often materialize views defined on the local relations to support common or complicated queries. Unfortunately, the requirement to kee... View full abstract»

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  • On incremental cache coherency schemes in mobile computing environments

    Publication Year: 1997, Page(s):114 - 123
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1104 KB)

    Re-examines the cache coherency problem in a mobile computing environment in the context of relational operations (i.e. selection, projection and join). We propose a taxonomy of cache coherency schemes, and as case studies, we pick several schemes for further study. These schemes are novel in several ways. First, they are incremental. Second, they are an integration of (and built on) techniques in... View full abstract»

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  • High-dimensional similarity joins

    Publication Year: 1997, Page(s):301 - 311
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB)

    Many emerging data mining applications require a similarity join between points in a high-dimensional domain. We present a new algorithm that utilizes a new index structure, called the ε-kdB tree, for fast spatial similarity joins on high-dimensional points. This index structure reduces the number of neighboring leaf nodes that are considered for the join test, as well as the traversal cost o... View full abstract»

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  • Quantifying complexity and performance gains of distributed caching in a wireless network environment

    Publication Year: 1997, Page(s):104 - 113
    Cited by:  Papers (8)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1120 KB)

    In a mobile computing system, the wireless communication bandwidth is a scarce resource that needs to be managed carefully. In this paper, we investigate the use of distributed caching as an approach to reduce the wireless bandwidth consumption for data access. We find that conventional caching techniques cannot fully utilize the dissemination feature of the wireless channel. We thus propose a nov... View full abstract»

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