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Database Engineering and Applications Symposium, 1998. Proceedings. IDEAS'98. International

Date 10-10 July 1998

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  • Proceedings. IDEAS'98. International Database Engineering and Applications Symposium (Cat. No.98EX156)

    Publication Year: 1998
    Request permission for commercial reuse | PDF file iconPDF (223 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 1998, Page(s):303 - 304
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    Freely Available from IEEE
  • Temporal database support for cooperative creative work

    Publication Year: 1998, Page(s):266 - 275
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (64 KB)

    A data modeling perspective on computer support for collaborative writing is given. In particular, the problem is identified as a temporal database application. The solution proposed is based upon a design system architecture, the repository of which uses the GENREG historical data model. GENREG uses event graphs to provide a group memory. The nodes represent the design objects (documents, referen... View full abstract»

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  • Technologies and techniques for rapid CASE tool development

    Publication Year: 1998, Page(s):188 - 201
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (104 KB)

    This paper proposes a new approach to the construction of CASE tools. The aim of this research is the rapid production of platform-independent CASE tools customised to various software engineering methods. The approach incorporates established database technologies and meta-CASE concepts with formal specification techniques, and uses the CDIF standard for inter-tool data interchange. The research ... View full abstract»

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  • Semi-automatic, semantic discovery of properties from database schemes

    Publication Year: 1998, Page(s):244 - 253
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    An important tool for the integration of large federated database systems is a global dictionary describing all the involved schemes into an unified framework. The first step in the construction of such a dictionary is the discovery of the properties holding among objects in different schemes. This paper presents novel algorithms to discover possible synonyms, homonyms and inclusions. In addition,... View full abstract»

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  • Evolvable intelligent user interface for WWW knowledge-based systems

    Publication Year: 1998, Page(s):224 - 233
    Cited by:  Papers (1)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    The immense size of the distributed WWW knowledge-base and the dramatic rapid increase in the volume of data on the Internet, requires techniques and tools that reduce users' information overload and improve the effectiveness of on-line information access. Despite the potential benefits of existing indexing, retrieving and searching techniques in assisting users in the browsing process, little has... View full abstract»

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  • Storage sub-systems to support large functional databases

    Publication Year: 1998, Page(s):52 - 53
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (12 KB)

    Earlier work by Maller and King (1996) evaluated the suitability of a functional database language (FDL) being used to support large applications in the field of investigative systems. This is a growing generic application area covering criminal and military intelligence and characterised by: significant data complexity; large data sets; and the need for high performance, interactive use. The eval... View full abstract»

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  • Parallel collection-equi join algorithms for object-oriented databases

    Publication Year: 1998, Page(s):159 - 168
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (80 KB)

    One of the differences between relational and object-oriented databases (OODB) is that attributes in OODB can be of a collection type (e.g. sets, lists, arrays, bags) as well as a simple type (e.g., integer, string). Consequently, explicit join queries in OODB may be based on collection attributes. One form of collection join queries in OODB is “collection-equi join queries”, where the... View full abstract»

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  • A transaction model for mobile computing

    Publication Year: 1998, Page(s):92 - 102
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (156 KB)

    We introduce a prewrite operation before a write operation in a mobile transaction to improve data availability. A prewrite operation does not update the state of a data object but only makes visible the value that the data object will have after the commit of the transaction. Once the transaction has read all the values and declares all the prewrites, it can precommit at a mobile host. The remain... View full abstract»

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  • WWW in DSM: collaborative caching on the Web

    Publication Year: 1998, Page(s):46 - 47
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (20 KB)

    The World Wide Web (WWW) is a large distributed system consisting of multiple servers and clients. The paper briefly describes a model called WWW in DSM that provides a collaborative cache through an underlying distributed shared memory (DSM) paradigm. The model allows sharing of retrieved documents among browsers using the DSM. The authors have implemented a prototype system that shares documents... View full abstract»

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  • A model-forest based horizontal fragmentation approach for disjunctive deductive databases

    Publication Year: 1998, Page(s):202 - 211
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB)

    Disjunctive deductive databases (DDDBs) can capture indefinite information, i.e., imprecise or partial knowledge, of the real world. In this paper we present a method for horizontally fragmenting a DDDB based on the minimal-model forest approach. A minimal-model forest of a DDDB D is a collection of minimal-model trees of D such that each tree represents a set of facts that is disjoint from the se... View full abstract»

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  • Stratum approaches to temporal DBMS implementation

    Publication Year: 1998, Page(s):4 - 13
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    Previous approaches to implementing temporal DBMSs have assumed that a temporal DBMS must be built from scratch, employing an integrated architecture and using new temporal implementation techniques such as temporal indexes and join algorithms. However, this is a very large and time-consuming task. The paper explores approaches to implementing a temporal DBMS as a stratum on top of an existing non... View full abstract»

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  • Database system support for spatio-temporal aspects in scientific applications

    Publication Year: 1998, Page(s):48 - 49
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (32 KB)

    Spatio-temporal data analysis plays an important role in many scientific applications like environmental epidemiology and public health. The authors' approach, STARS (Spatio-Temporal dAtabase system Realized with Shore), integrates spatio-temporal aspects in the persistent object system SHORE. STARS provides an object oriented query language to formulate spatio-temporal queries which can be proces... View full abstract»

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  • Interactive query for image contents by semantic descriptors and multi-agent

    Publication Year: 1998, Page(s):50 - 51
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (20 KB)

    Retrieving huge collections of images from the World Wide Web (WWW) based on image content is a challenging field which is receiving a lot of attention from researchers. Most investigations focus on feature extraction and feature matching motivated by image processing and computer vision. We propose a distributed content-based image query system (DCBIQ) based on the WWW. The system architecture in... View full abstract»

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  • Definition of derived classes in OODBs

    Publication Year: 1998, Page(s):150 - 158
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    According to the ANSI/SPARC architecture, external schemas are derived from the database conceptual schema. In object-oriented databases (OODBs), an external schema map include classes defined in the conceptual schema just as it may also contain derived classes which are directly or indirectly defined on the basis of conceptual schema classes. In the definition of derived classes in OODBs three ma... View full abstract»

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  • Transitive dependencies in transaction closures

    Publication Year: 1998, Page(s):34 - 43
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (124 KB)

    Complex applications consist of a large set of transactions which are interrelated. There are different kinds of dependencies among transactions of a complex application, e.g. termination or execution dependencies which are constraints on the occurrence of significant transaction events. The authors analyze a set of (orthogonal) transaction dependencies. They do not follow traditional approaches w... View full abstract»

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  • The design and implementation of an infrastructure for multimedia digital libraries

    Publication Year: 1998, Page(s):103 - 110
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    We develop an infrastructure for managing, indexing and serving multimedia content in digital libraries. This infrastructure follows the model of the Web, and thereby is distributed in nature. We discuss the design of the Librarian, the component that manages meta data about the content. The management of meta data has been separated from the media servers that manage the content itself. Also, the... View full abstract»

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  • Mining association rules with weighted items

    Publication Year: 1998, Page(s):68 - 77
    Cited by:  Papers (92)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    Discovery of association rules has been found useful in many applications. In previous work, all items in a basket database are treated uniformly. We generalize this to the case where items are given weights to reflect their importance to the user. The weights may correspond to special promotions on some products, or the profitability of different items. We can mine the weighted association rules ... View full abstract»

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  • Foundations of a methodology of DBMS decoupling for evolutionary component DBMS design

    Publication Year: 1998, Page(s):178 - 187
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    DBMS decoupling is an important part of component DBMS design in which the architects must identify and factor out appropriate DBMS components. Unfortunately, we do not yet have clear understanding of the objectives and pitfalls of DBMS decoupling, least of all the formal methods that can guide the process. This paper lays out the foundations of a methodology of DBMS decoupling which reflects the ... View full abstract»

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  • Data compression in database systems

    Publication Year: 1998, Page(s):111 - 120
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    This paper addresses the question of how information-theoretically-derived compact representations can be applied in practice to improve storage and processing efficiency in DBMS. Compact data representation has the potential for savings in storage, access and processing costs throughout the systems architecture and may alter the balance of usage between disk and solid state storage. To realise th... View full abstract»

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  • Implementation of object-oriented association relationships in relational databases

    Publication Year: 1998, Page(s):254 - 263
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (64 KB)

    With the increasing popularity of object-relational technology, it is becoming important to have a methodology which allows designers to exploit the great modelling power of object-oriented conceptual models (OOCMs) and yet which still facilitates implementation on relational database systems. This paper presents a practical solution for the implementation of different types of object-oriented ass... View full abstract»

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  • The implementation of DESCRIBE

    Publication Year: 1998, Page(s):54 - 55
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (24 KB)

    Design engineers frequently re-use or adapt old designs. Currently, this process is undertaken manually, albeit with the assistance of CAD and analysis software. Using object-oriented databases, the DESCRIBE (DEsign System to support Concurrent Re-use of data In Building and Engineering Design) project concerns the creation of a system that allows the storage of design artefacts as discrete object... View full abstract»

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  • Logical data modeling of spatiotemporal applications: definitions and a model

    Publication Year: 1998, Page(s):14 - 23
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    Dealing with spatiotemporal applications at the logical phase of database design reveals a set of data peculiarities which the already existing models cannot serve satisfactorily. The ontologies of a spatiotemporal environment-namely the basic concepts of objects, attributes and relationships with spatial and temporal extent, as well as operations on them-are defined. Based on these, specification... View full abstract»

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  • A promising retrieval algorithm for systems based on the conceptual graphs formalism

    Publication Year: 1998, Page(s):121 - 130
    Cited by:  Papers (2)  |  Patents (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Conceptual graphs can be used as a simple and expressive language for indexing and retrieving non-textual documents. In this knowledge representation formalism, the implementation of the matching function between a query and a document is obtained by the so-called projection operator between two conceptual graphs. A good implementation of the projection algorithm is therefore crucial for managing ... View full abstract»

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  • The integration of product data and workflow management systems in a large scale engineering database application

    Publication Year: 1998, Page(s):296 - 302
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (60 KB)

    At a time when many companies are embracing business process re-engineering and are under pressure to reduce “time-to-market”, the management of product information from creative design through to manufacture has become increasingly important. Traditionally, design engineers have employed product data management systems to coordinate and control access to documented versions of product... View full abstract»

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