C. Collet and T. Coupaye. Primitive and Composite Events in NAOS. In Actes des 12i`emes Journ'ees Bases de Donn'ees Avanc'ees, Cassis - France, September 1996. Home/Search Document Details and Download
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Handling Temporal Grouping and Pattern-Matching Queries in .. - Dumas, Fauvet, Scholl (1998) (6 citations) (Correct)
....recognizing the language defined by a timed regular expression. In the context of video databases, 15] describes an implementation of a pattern matching language based on regular expressions. Furthermore, in active databases, many languages for defining patterns of events have been proposed [5] which integrate regular expression operators too. An issue closely related to temporal pattern matching queries is that of finding approximate matches of a sequence in a collection of time series. Such operation may be used to answer queries such as find companies whose stock prices move ....
C. Collet and T. Coupaye. Primitive and Composite Events in NAOS. In actes des 12e Journees Bases de Donneees Avancees, Cassis (France), aout 1996. pages 331--349.
Toward a Semantic Event Service for Distributed.. - Collet.. (1998) (3 citations) Self-citation (Collet) (Correct)
....and allows the definition and execution of distributed active rules. Rules may be triggered by inter transaction and interapplicative events. Also, the event service introduces the interaction of (non) O 2 applications running on different (same) O 2 server. The NAOS event type definition [CC96] is supported by the event definition language of QUETZAL. Further, the NAOS event detection process is based on two principles: i) as primitive event detection must be efficient and fine grained, it is therefore placed inside the database it is supposed to monitor ii) detection is based on a ....
....and transaction operations, and time are detected using the pull communication protocol via the event detector (i) On the other hand, abstract events have to be signaled by their producers under the push protocol. NAOS introduces detection contexts that allow computation of validity intervals [CC96] The intervals are not given explicitly and depend on the unit of Toward a Semantic Event Service 9 Event Detector previous event handling communication with the DBMS network communication O2C O2API Execution Engine O2Engine notifies events notifies events connection connection ....
C. Collet and T. Coupaye. Primitive and Composite Events in NAOS. In Actes des 12i`emes Journ'ees Bases de Donn'ees Avanc'ees, Cassis - France, September 1996.
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