H. V. Jagadish and O. Shmueli. Composite events in a distributed object-oriented database. In Proceedings of the International Workshop on Distributed Object Management, 1992.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....A TOPSS) Event centered systems use Boolean combinations of predicates on attribute values. Additionally, several of these systems carry the notion of composite events that are temporal combinations of events, such as a sequence. Composite events have been extensively studied in active databases [11, 16, 36]. Only few sophisticated profile definition languages using 4 composite events have been implemented [19, 14] A combination of concepts from active databases and event notification systems are Event Action Systems (EAS) In such systems (e.g. in Yeast [17] the user profile defines an action ....

H. V. Jagadish and O. Shmueli. Composite events in a distributed object-oriented database. In Proceedings of the International Workshop on Distributed Object Management, 1992.

....databases, temporal or deductive databases, temporal data mining, time series analysis, and distributed systems. In the area of active database systems, the problem of event rule specification has been evaluated for several years (see, e.g. 8] also with special focus on composite events [15, 16, 19, 14, 31, 30] and temporal conditions (e.g. 14, 11, 12] Active database systems can rely on the transactional context for the composition of events. Trigger conditions can be defined based on the old and new state of the database, thus using the concept of states rather than describing the event itself. ....

H. V. Jagadish and O. Shmueli. Composite events in a distributed object-oriented database. IWDOM, pages 248--268, 1992.

....do not rely on a particular computational model beyond that implied by minimal assumptions about message passing in open systems. PSL specifications contain sets of constraints on behavior that may be implemented by any kind of component meeting the constraints. History based Frameworks (e.g. [43, 47, 32, 13, 22]) specify actions that occur under given patterns of event histories. These patterns are most often described in terms of regular expressions or variants thereof. Because PSL deals with roles in potentially distributed systems, events as seen by a given instance are not necessarily totally ....

Jagadish, H., & O. Shmueli, "Composite Events in a Distributed Object-Oriented Database" Distributed Object Management, Morgan Kaufmann, 1994.

....Snoop [8] introduced a formal definition of primitive and composite events based on a global history log, and four event consumption policies: recent, chronicle, continuous and cumulative. Reach [6] provided mechanisms for efficient detection and composition based on the SAMOS [16] algebra. Ode [22] proposed complex event composition but used timestamps for event identification and required a total ordering. Recent efforts have concentrated on unbundling database functionality to provide, among others, active functionality services through configurable components [17,25] None of the ....

H. Jagadish and O. Shmueli. Composite Events in a Distributed Object-Oriented Database. In M. Tamer zsu, U. Dayal and P. Valduriez (editors), Distributed Object Management, Morgan Kaufmann, San Mateo, California, 1994.

....They do not rely on a particular computational model beyond that implied by minimal assumptions about message passing in open systems. PSL specifications contain sets of constraints on behavior that may be implemented by any kind of component meeting the constraints. History based Frameworks [45, 50, 33, 14, 23] specify actions that occur under given patterns of event histories. These patterns are most often described in terms of regular expressions or variants thereof. Because PSL deals with roles in potentially distributed systems, events as seen by a given instance are not necessarily totally ....

Jagadish, H., & O. Shmueli, "Composite Events in a Distributed Object-Oriented Database" Distributed Object Management, Morgan Kaufmann, 1994.

....workflow execution based on reactive components. 5 Related Work The semantics of composite events in non distributed active DBMS have been described in [2, 4, 5, 12] The semantics of composite events in distributed systems in general and distributed DBMS in particular have been discussed in [9]. 13] proposes a general application independent framework for the detection of composite events in distributed systems. Event histories have also been used to specify the semantics of advanced transaction models. In [11] dependencies between events are specified using the precedence ....

H.V. Jagadish, O. Shmueli. Composite Events in a Distributed Object-Oriented Database. In M.T. Oezsu, U. Dayal, P. Valduriez (eds.). Distributed Object Management. Morgan Kaufmann, 1994.

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H. V. Jagadish and O. Shmueli. Composite events in a distributed object-oriented database. In Proceedings of the International Workshop on Distributed Object Management, 1992.

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