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Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The promise of the Semantic Web is to move from a Web of data to a Web of meaning and distributed services. This vision of the Web has attracted - searchersfromdi erent horizonswith the aims of de ning newarchitecturesand languages necessary to make it possible, and of developing the rst applications of these concepts. This book contains the articles selected for publication and presentation at the workshop Principles and Practice of Semantic Web Reasoning PPSWR 2005, together with three invited talks. Three major aspects of Semantic Web research are represented in this selection: architecture issues, language issues, and reasoning methods. These advances are investigated in the context of new design principles and challenging applications. ThePPSWR2005workshopwaspartoftheDagstuhlseminarontheSem- tic Web organizedby F. Bry (Univ. Munchen, Germany),F. Fages (INRIA Roc- quencourt, France), M. Marchiori (MIT, Cambridge, USA) and H.-J. Ohlbach (Univ. Munchen, Germany),held in Dagstuhl, Germany,11 16September 2005. It was supported by the European Network of Excellence REWERSE (Reas- ing on the Web with Rules and Semantics, This four-year project includes 27 European research and development organizations, and is intended to bolster Europe s expertise in Web reasoning systems and appli- tions.Itconsistsofeightmainworkinggroups: RuleMarkupLanguage , Policy Language, Enforcement, Composition , Composition and Typing , Reasoning- Aware Querying , Evolution , Time and Location , Adding Semantics to the Bioinformatics Web , and Personalized Information Systems . The papers in this volume re ect most of the topics investigated in REWERSE; one third of them come from outside REWERSE.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The best informal de nition of the Semantic Web is maybe found in the May 2001Scienti cAmericanarticle'TheSemanticWeb'(Berners-Leeetal. ),which says'TheSemanticWebisanextensionofthecurrentWebinwhichinformation is given well-de ned meaning, better enabling computers and people to work in cooperation. ' People who work on the Semantic Web quite often base their work on the famous 'semantic web tower', a product of Tim Berners-Lee's inspiring drawing on whiteboards. The lowest level is the level of character representation (Unicode) and the identi cation of resources on the Web (URIs). The highest level concerns the problem of trusting information on the Web. Somewhere in the middle of the tower is the logic level. It addresses the problem of represe- ing information on the Web in a way so that inference rules can derive implicit information from explicitly stated information. The workshop 'Principles and Practices of Semantic Web Reasoning' (PPSWR 2004) addressed problems on this level. It took place in September 2004 as a satellite event of the 20th Int- national Conference on Logic Programming (ICLP) in St. Malo, France. After PPSWR 2003 in Mumbai, India, it was the second workshop in this series. This book contains the articles presented at the workshop.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The Semantic Web is a major endeavor aimed at enriching the existing Web withmetadataandprocessingmethodssoastoprovideWeb-basedsystemswith advanced(so-calledintelligent)capabilities,inparticularwithcontext-awareness and decision support. The advanced capabilities striven for in most Semantic Web application s- narios primarily call for reasoning. Reasoning capabilities are o ered by exi- ing Semantic Web languages, such as BPEL4WS, BPML, ConsVISor, DAML-S, JTP, TRIPLE, and others. These languages, however, were developed mostly from functionality-centered (e.g., ontology reasoning or access validation) or application-centered (e.g., Web service retrieval and composition) perspectives. A perspective centered on the reasoning techniques (e.g., forward or backward chaining, tableau-like methods, constraint reasoning, etc.) complementing the above-mentioned activities appears desirable for Semantic Web systems and - plications. The workshop on Principles and Practice of Semantic Web Reas- ing, which took place on December 8, 2003, in Mumbai, India, was the rst of a series of scienti c meetings devoted to such a perspective. JustasthecurrentWebisinherentlyheterogeneousindataformatsanddata semantics, the Semantic Web will be inherently heterogeneous in its reasoning forms.Indeed,anysingleformof reasoningturnsouttobeirrealin theSemantic Web. For example, ontology reasoning in general relies on monotonic negation (for the metadata often can be fully speci ed), while databases, Web databases, and Web-based information systems call for non-monotonic reasoning (for one would not specify non-existing trains in a railway timetable); constraint reas- ing is needed when dealing with time (for time intervals have to be dealt with), while(forwardand/orbackward)chainingisthereasoningofchoicewhe ncoping with database-like views (for views, i.e., virtual data, can be derived from actual data using operations such as join and projections).

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Here are the proceedings of the 4th International Workshop on Principles and Practice of Semantic Web Reasoning, PPSWR 2006. The book presents 14 revised full papers together with 1 invited talk and 6 system demonstrations, addressing major aspects of semantic Web research, namely forms of reasoning with a strong interest in rule-based languages and methods. Coverage includes theoretical work on reasoning methods, concrete reasoning methods and query languages, and practical applications.

Taschenbuch. Zustand: Neu. Principles and Practice of Semantic Web Reasoning | International Workshop, PPSWR 2003, Mumbai, India, December 8, 2003, Proceedings | Francois Bry (u. a.) | Taschenbuch | Einband - flex.(Paperback) | Englisch | 2003 | Springer | EAN 9783540205821 | Verantwortliche Person für die EU: Springer Nature Customer Service Center GmbH, Europaplatz 3, 69115 Heidelberg, productsafety[at]springernature[dot]com | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Principles and Practice of Semantic Web Reasoning | 4th International Workshop, PPSWR 2006, Budva, Montenegro, June 10-11, 2006, Revised Selected Papers | José Júlio Alferes (u. a.) | Taschenbuch | xii | Englisch | 2006 | Springer | EAN 9783540395867 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Principles and Practice of Semantic Web Reasoning | Third International Workshop, PPSWR 2005, Dagstuhl Castle, Germany, September 11-16, 2005, Proceedings | Francois Fages (u. a.) | Taschenbuch | x | Englisch | 2005 | Springer | EAN 9783540287933 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Principles and Practice of Semantic Web Reasoning | Second International Workshop, PPSWR 2004, St. Malo, France, September 6-10, 2004, Proceedings | Hans J. Ohlbach (u. a.) | Taschenbuch | viii | Englisch | 2004 | Springer | EAN 9783540229612 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.

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