Principles practice semantic web (31 Ergebnisse)

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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)chainingisthereasoningofchoicewhencoping with database-like views (for views, i.e., virtual data, can be derived from actual data using operations such as join and projections).…

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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 - 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.…

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Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -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)chainingisthereasoningofchoicewhencoping with database-like views (for views, i.e., virtual data, can be derived from actual data using operations such as join and projections). 224 pp. Englisch.…

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -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. 180 pp. Englisch.…

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -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. 180 pp. Englisch.…

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -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. 296 pp. Englisch.…

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Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Foundations of Semantic Web Reasoning.- Composing Frameworks and Components for Families of Semantic Web Applications.- Semantic Web Logic Programming Tools.- Web Rules Need Two Kinds of Negation.- Reasoning in Practice.- Towards the Adaptive Semantic Web.-.…

Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Architectures.- SomeWhere in the Semantic Web.- A Framework for Aligning Ontologies.- A Revised Architecture for Semantic Web Reasoning.- Semantic Web Architecture: Stack or Two Towers.- Languages.- Ten Theses on Logic Languages for the Semantic Web.- Sema. …

Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Proceedings of the 4th International Workshop on Principles and Practice of Semantic Web Reasoning, PPSWR 2006Presents 14 revised full papers together with 1 invited talk and 6 system demonstrationsCoverage includes theoretical work on reas.…

Taschenbuch. Zustand: Neu. This item is printed on demand - Print on Demand Titel. Neuware -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.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 180 pp. Englisch.…

Taschenbuch. Zustand: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Architectures.- SomeWhere in the Semantic Web.- A Framework for Aligning Ontologies.- A Revised Architecture for Semantic Web Reasoning.- Semantic Web Architecture: Stack or Two Towers .- Languages.- Ten Theses on Logic Languages for the Semantic Web.- Semantic and Computational Advantages of the Safe Integration of Ontologies and Rules.- Logical Reconstruction of RDF and Ontology Languages.- Marriages of Convenience: Triples and Graphs, RDF and XML in Web Querying.- Descriptive Typing Rules for Xcerpt.- A General Language for Evolution and Reactivity in the Semantic Web.- Reasoning.- Use Cases for Reasoning with Metadata or What Have Web Services to Do with Integrity Constraints .- Principles of Inductive Reasoning on the Semantic Web: A Framework for Learning in -Log.- Computational Treatment of Temporal Notions: The CTTN-System.- A Geospatial World Model for the Semantic Web.- Generating Contexts for Expression Data Using Pathway Queries.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 180 pp. Englisch.…

Taschenbuch. Zustand: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Session 1. Invited Talk.- The RuleML Family of Web Rule Languages.- Session 2. Reasoning I.- Automated Reasoning Support for First-Order Ontologies.- Combining Safe Rules and Ontologies by Interfacing of Reasoners.- Session 3. Applications.- Realizing Business Processes with ECA Rules: Benefits, Challenges, Limits.- Interaction Protocols and Capabilities: A Preliminary Report.- Semantic Web Reasoning for Analyzing Gene Expression Profiles.- Session 4. Querying.- Data Model and Query Constructs for Versatile Web Query Languages: State-of-the-Art and Challenges for Xcerpt.- AMa oS-Abstract Machine for Xcerpt: Architecture and Principles.- Towards More Precise Typing Rules for Xcerpt.- Session 5. Reasoning II.- Extending an OWL Web Node with Reactive Behavior.- Supporting Open and Closed World Reasoning on the Web.- Reasoning with Temporal Constraints in RDF.- Session 6. Reasoning III.- Bidirectional Mapping Between OWL DL and Attempto Controlled English.- XML Querying Using Ontological Information.- Semantic Web Reasoning Using a Blackboard System.- Systems Session.- Effective and Efficient Data Access in the Versatile Web Query Language Xcerpt.- Web Queries with Style: Rendering Xcerpt Programs with CSSNG.- Information Gathering in a Dynamic World.- Practice of Inductive Reasoning on the Semantic Web: A System for Semantic Web Mining.- Fuzzy Time Intervals System Description of the FuTI-Library.- A Prototype of a Descriptive Type System for Xcerpt.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 296 pp. Englisch.…

Taschenbuch. Zustand: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Foundations of Semantic Web Reasoning.- Composing Frameworks and Components for Families of Semantic Web Applications.- Semantic Web Logic Programming Tools.- Web Rules Need Two Kinds of Negation.- Reasoning in Practice.- Towards the Adaptive Semantic Web.- On Reasoning on Time and Location on the Web.- Reasoning about Communicating Agents in the Semantic Web.- Query and Rule-Languages.- A Visual Language for Web Querying and Reasoning.- XML Document Adaptation Queries (XDAQ): An Approach to Adaptation Reasoning Using Web Query Languages.- On Types for XML Query Language Xcerpt.- Integrating Description Logics and Answer Set Programming.- Semantics and Knowledge Representation.- Extracting Mathematical Semantics from Documents.- Reasoning in Attempto Controlled English.- Systematics and Architecture for a Resource Representing Knowledge about Named Entities.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 224 pp. Englisch.…