Conceptual Modeling and Querying in Multimedia Databases

Chitta Baral, Graciela Gonzalez, Tran Son

    Research output: Contribution to journalArticlepeer-review

    9 Scopus citations

    Abstract

    In this paper, we discuss some design principles that will aid in the design and querying of multimedia databases. We use an object-relational data model and argue that multimedia objects should normally have a special attribute called 'core' which stores the real object itself in contrast to the abstraction which is reflected in the rest of the attributes. We present an extension to the ER Diagram that takes advantage of the 'core' notion to facilitate design of multimedia databases. We discuss some desirable features in a query language for multimedia databases: simplifications like the use of path expressions and implicit use of functions (methods) as attributes, and explicit specification of the display layout and format either at the data definition level or query specification level. To materialize this last feature, we propose a display specification extension to SQL (SQL+D) that we have implemented.

    Original languageEnglish (US)
    Pages (from-to)37-66
    Number of pages30
    JournalMultimedia Tools and Applications
    Volume23
    Issue number4
    DOIs
    StatePublished - Jan 1 1998

    Keywords

    • ER diagram
    • Modeling the WWW
    • Multimedia database
    • Object relational data model

    ASJC Scopus subject areas

    • Software
    • Media Technology
    • Hardware and Architecture
    • Computer Networks and Communications

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