Principles and Practice of Semantic Web Reasoning: Second by François Bry, Włodzimierz Drabent (auth.), Hans Jürgen

By François Bry, Włodzimierz Drabent (auth.), Hans Jürgen Ohlbach, Sebastian Schaffert (eds.)

The top casual de?nition of the Semantic net is perhaps present in the might 2001Scienti?cAmericanarticle“TheSemanticWeb”(Berners-Leeetal. ),which says“TheSemanticWebisanextensionofthecurrentWebinwhichinformation is given well-de?ned which means, larger permitting pcs and other people to paintings in cooperation. ” those who paintings at the Semantic internet normally base their paintings at the well-known “semantic internet tower”, a fabricated from Tim Berners-Lee’s inspiring drawing on whiteboards. the bottom point is the extent of personality illustration (Unicode) and the identi?cation of assets on the net (URIs). the top point matters the matter of trusting details on the internet. someplace in the midst of the tower is the good judgment point. It addresses the matter of represe- ing info on the internet in a manner in order that inference ideas can derive implicit info from explicitly said info. The workshop “Principles and Practices of Semantic net Reasoning” (PPSWR 2004) addressed difficulties in this point. It came about in September 2004 as a satellite tv for pc occasion of the twentieth Int- nationwide convention on common sense Programming (ICLP) in St. Malo, France. After PPSWR 2003 in Mumbai, India, it was once the second one workshop during this sequence. This booklet includes the articles awarded on the workshop.

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Additional info for Principles and Practice of Semantic Web Reasoning: Second International Workshop, PPSWR 2004, St. Malo, France, September 6-10, 2004. Proceedings

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Furche, the (semantic) web: A deductive approach. Technical Report PMS-FB-2004-13, University of Munich, May 2004. 7. P. Buneman, S. Davidson, G. Hillebrandt, and D. Suciu. A query language and optimization techniques for unstructured data. In ACM Intl. Conference on Management of Data (SIGMOD), pages 505–516, Montreal, Canada, 1996. 8. S. Chakravarthy, V. Krishnaprasad, E. -K. Kim. Composite events for active databases: Semantics, contexts and detection. In VLDB, 1994. 9. S. Cluet, C. Delobel, J.

Reservation systems) that they update. For including general reactivity of Web services into the intended reasoning on the Semantic Web, a formal specification of their behavior is required. Here, we distinguish two types of Web services, according to the possibilities of reasoning about their behavior (and updating it): Web services where a formal specification of their behavoir exists –either directly rule-based or by any formal method– can be subject to reasoning, whereas other Web services will be considered as black boxes.

Events. g. raising time, recipient(s)) and thus the execution of actions in a user-defined synchronised manner. Example 5. Assume that a train has 30 minutes delay. com: 42 F. Bry et al. g. com in Example 5) process the incoming events in order to execute (trans)actions or to raise other events. g. the time stamps may be used to decide whether the events are too old or not). The processing of events is specified in XChange by means of event-raising rules, event-driven update rules, and event-driven transaction rules.

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