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Composite events in NAOS

  • Christine Collet
  • Thierry Coupaye
Active and Temporal Aspects 2
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1134)

Abstract

This paper deals with composite events in active databases. It describes the syntax and semantics of NAOS composite event expressions. This semantics is based on the semantics of the proposed operators and on the notions of context of detection and validity interval These notions are central especially for event types containing negations and strict disjunctions. The paper also describes the event detection process with is modelized by event graphs.

Keywords

Event Type Composite Event Large Data Base Process Stop Event Expression 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    S. Chakravarthy, V. Krishnaprasad, E. Anwar, and S-K. Kim. Composite Events for Active Databases: Semantics, Contexts and Detection. In M. Jarke J. Bocca and C. Zaniolo, editors, Proc. of the 20th Int. Conf. on Very Large Data Bases, pages 606–617, Santiago-Chile, September 1994. Morgan Kaufmann.Google Scholar
  2. 2.
    S. Chakravarthy and D. Mishra. Snoop: An Expressive Event Specification Language For Active Databases. Technical Report UF-CIS-TR-93-007, University of Florida, Gainesville, USA, March 1993.Google Scholar
  3. 3.
    C. Collet and T. Coupaye. Primitive and Composite Events in NAOS. In Actes des 11ièmes Journées Bases de Données Avancées, Cassis-France, September 1996.Google Scholar
  4. 4.
    C. Collet, T. Coupaye, and T. Svensen. NAOS Efficient and Modular Reactive Capabilities in an Object-Oriented Database System. In Proc. of the 20th Int. Conf. on Very Large Data Bases, pages 132–143, Santiago-Chile, September 12–15 1994.Google Scholar
  5. 5.
    C. Collet, P. Habraken, T. Coupaye, and M. Adiba. Active Rules for the GOOD-STEP Software Engineering Platform. In Proc. of the 2ndInt. Workshop on Database and Software engineering — 16th Int. Conference on Software Engineering, Sorrento-Italy, May 16–17 1994.Google Scholar
  6. 6.
    T. Coupaye and C. Collet. Denotationnal Semantics for an Active Rule Execution Model. In T. Sellis, editor, Proc. of the 2nd Int. Workshop on Rules in Database Systems, RIDS'95 Lecture Notes in computer Science 985, pages 36–50. Springer Verlag, Athens, Greece, September 1995.Google Scholar
  7. 7.
    S. Gatziu and K. Dittrich. Detecting Composite Events in Active Database Systems using Petri Nets. In Proc. of the 4th Int. Workshop on Research Issues in Data Engineering: Active Database Systems. IEEE, Houston, February 1994.Google Scholar
  8. 8.
    S. Gatziu, A. Geppert, and K.R. Dittrich. Events in an Active Object-Oriented Database System. In Proc. of the 1st Int. Workshop on Rules in Database Systems, Edinburg-Scotland, August 1993.Google Scholar
  9. 9.
    N. Gehani, H.V. Jagadish, and O. Shmueli. Event Specification in an Active Object-Oriented Database. In Proc. of the 1992 ACM SIGMOD Int. Conf. on Management of Data, pages 81–90, San Diego, California, 1992.Google Scholar
  10. 10.
    R. Meo, G. Psaila, and S. Ceri. Composite Events in Chimera. In P. Apers, M. Bouzeghoub, and G. Gardarin, editors, Proc. of the 5th International Conference on Extending Database Technology, EDBT'96Lecture Notes in Computer Science 1057, pages 56–78. Springer Verlag, Avignon, France, march 1996.Google Scholar
  11. 11.
    I. Motakis and C. Zaniolo. Composite Temporal Events in Active Database Rules: A Logic-Oriented Approach. In ? st Int. Conf. Deductive and Object-Oriented Databases, December 1995.Google Scholar
  12. 12.
    O. Shmueli N.H. Gehani, H.V. Jagadish. Composite Event Specification in Active Databases: Model & Implementation. In Proc. of the 18th Int. Conf. on Very Large Data Bases, September 1992.Google Scholar
  13. 13.
    J. Widom and S. Ceri. Active Database systems — Triggers and Rules for Advanced Database Processing. Morgan Kaufmann Publishers, San Francisco, California, 1995.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • Christine Collet
    • 1
  • Thierry Coupaye
    • 1
  1. 1.LSR-IMAGUniversity of GrenobleGrenoble cedex 9France

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