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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
    Request permission for commercial reuse | PDF file iconPDF (323 KB)
    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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  • 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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  • 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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  • STR: a simple and efficient algorithm for R-tree packing

    Publication Year: 1997, Page(s):497 - 506
    Cited by:  Papers (81)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    Presents the results from an extensive comparison study of three R-tree packing algorithms: the Hilbert and nearest-X packing algorithms, and an algorithm which is very simple to implement, called the STR (Sort-Tile-Recursive) algorithm. The algorithms are evaluated using both synthetic and actual data from various application domains including VLSI design, GIS (Tiger files), and computational flu... View full abstract»

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  • Delegation: efficiently rewriting history

    Publication Year: 1997, Page(s):266 - 275
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (956 KB)

    Transaction delegation, as introduced in ACTA, allows a transaction to transfer responsibility for the operations that it has performed on an object to another transaction. Delegation can be used to broaden the visibility of the delegatee, and to tailor the recovery properties of a transaction model. Delegation has been shown to be useful in synthesizing advanced transaction models. With an effici... View full abstract»

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  • Active customization of GIS user interfaces

    Publication Year: 1997, Page(s):487 - 496
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (932 KB)

    Presents a new approach to user interface customization in geographic information systems (GIS). This approach is based on the integration of three main components: a GIS user interface architecture; an active database mechanism; and a generic interface builder. The GIS interface architecture provides the default interface behavior, while the active system allows customization of interfaces accord... View full abstract»

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  • Index selection for OLAP

    Publication Year: 1997, Page(s):208 - 219
    Cited by:  Papers (78)  |  Patents (60)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (992 KB)

    On-line analytical processing (OLAP) is a recent and important application of database systems. Typically, OLAP data is presented as a multidimensional “data cube.” OLAP queries are complex and can take many hours or even days to run, if executed directly on the raw data. The most common method of reducing execution time is to precompute some of the queries into summary tables (subcube... 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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  • Buffer and I/O resource pre-allocation for implementing batching and buffering techniques for Video-on-Demand systems

    Publication Year: 1997, Page(s):344 - 353
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (988 KB)

    To design a cost effective VOD server, it is important to carefully manage the system resources so that the number of concurrent viewers can be maximized. Previous research results use data sharing techniques, such as batching, buffering, and piggybacking, to reduce the demand for I/O resources In a VOD system. However, these techniques still suffer from the problem that additional I/O resources a... 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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