Accession Number : ADA294798

Title :   Composite Event Specification and Detection for Supporting Active Capability in an OODBMS: Semantics Architecture and Implementation.

Descriptive Note : Final rept. Jun 93-Sep 94,

Corporate Author : FLORIDA UNIV GAINESVILLE COLL OF ENGINEERING

Personal Author(s) : Chakravarthy, S. ; Krishnaprasad, V. ; Tamizuddin, Z. ; Kim, S-K

PDF Url : ADA294798

Report Date : MAR 1995

Pagination or Media Count : 73

Abstract : This effort is a result of a jointly-funded agreement between NAVY/NCCOSC and USAF/Rome Laboratory in the area of intelligent knowledge base systems. During the last decade, database management systems (DBMSs) have evolved considerably to meet the requirements of emerging applications. One of those requirements is to represent real world situations as part of the database, and to monitor and react to them automatically without use of application intervention. Making a database system active entails not only developing an expressive event specification language with well-defined semantics and algorithms for the detection of composite events, but also an architecture for an event detector along with its implementation. This report extends earlier work on event specification language and provides the semantics of composite events over a global event-history (or a global event-log).

Descriptors :   *DATA BASES, *REQUIREMENTS, *SEMANTICS, *COMPUTER ARCHITECTURE, *KNOWLEDGE BASED SYSTEMS, ALGORITHMS, DETECTION, DATA MANAGEMENT, SPECIFICATIONS, PROGRAMMING LANGUAGES, SEISMIC WAVES, ARTIFICIAL INTELLIGENCE, INTERVENTION.

Subject Categories : Computer Programming and Software
      Computer Systems
      Linguistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE