Semantics databases (33 Ergebnisse)

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Paperback or Softback. Zustand: New. Semantics in Databases: Second International Workshop, Dagstuhl Castle, Germany, January 7-12, 2001, Revised Papers. Book.

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Softcover. Zustand: neu. 1. Auflage. Forschungsergebnisse zur Informatik, Band 13 140 pages. Joining ideas from database theory and logic programming leads to the theory of deductive databases. In addition to the data stored in a database (extensional facts), a deductive database stores rule based knowledge concerning parts of the real world which are modeled by the system. A deductive database management system (DDBMS) consists of two parts: 1) An arbitrary database management system and 2) a deduction mechanism that uses extensional as well as intensional facts and rules for deducing new data (intensional facts). Since rules can be seen as a declarative (programming, query) language, one of the main serious problems arising from logic programming and deductive databases is to find a (constructive) semantics which coincides with the user's intuitive meaning of the rules. The aim of this work is to introduce a Petri net semantics for logic programs and deductive databases which is more constructive than any currently known semantics. Logic programs and deductive databases are transformed into a Petri net class whose elements are called, according to their dynamical behaviour, fixpoint nets. The problems of non-monotonic reasoning are expressed by means of generalized conflict situations in fixpoint nets. The semantics of a logic program or a deductive database is defined by means of logical consequences of a set of (possibly three-valued) models, which can be generated from the saturated marking of the program's Petri net representation. It is shown that for stratified normal programs and for positive disjunctive programs the Petri net semantics coincides with the perfect model semantics and the Minker/Rajasekar semantics respectively.…

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Paperback. Zustand: New. 2003 ed. This book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Semantics in Databases, held in Dagstuhl Castle, Germany, in January 2001.The 10 revised full papers presented together with an introduction by the volume editors were carefully selected during two rounds of reviewing. Among the aspects of database semantics discussed are semantic constraints, paraconsistency, logic foundations of databases, ER modeling, type hierarchies, null values, consistency enforcement, logic-based pattern languages, and semantic classification of queries. Among the classes of databases dealt with are deductive databases, relational databases, distributed information systems, and tree-structured data.…

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Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book presents a coherent suvey on exciting developments in database semantics. The origins of the volume date back to a workshop held in Prague, Czech Republic, in 1995. The nine revised full papers and surveys presented were carefully reviewed for inclusion in the book. They address more traditional aspects like dealing with integrity constraints and conceptual modeling as well as new areas of databases; object-orientation, incomplete information, database transformations and other issues are investigated by applying formal semantics, e.g. the evolving algebra semantics.…

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Invited Talks.- Databases and the Grid: JDBC in WSDL, or Something Altogether Different .- Emergent Semantics Systems.- Integration.- User-Specific Semantic Integration of Heterogeneous Data: The SIRUP Approach.- Towards a Mediation System Framework for Transparent Access to Largely Distributed Sources.- Null Values Revisited in Prospect of Data Integration.- Peer to Peer.- Semantic-Based Query Routing and Heterogeneous Data Integration in Peer-to-Peer Semantic Link Networks.- Peer Selection in Peer-to-Peer Networks with Semantic Topologies.- Autonomous Gossiping: A Self-Organizing Epidemic Algorithm for Selective Information Dissemination in Wireless Mobile Ad-Hoc Networks.- Hyper: A Framework for Peer-to-Peer Data Integration on Grids.- Semantics for Scientific Applications.- Semantically Linking and Browsing Provenance Logs for E-science.- Emergent Semantics: Towards Self-Organizing Scientific Metadata.- Semantic Visualization of Biochemical Databases.- Interoperability and Mediation.- Semantic Information Interoperability in Open Networked Systems.- A New Mechanism for the Interoperability of Data Systems.- An Architecture for Recommendation Based Service Mediation.- Global Services and Schemas.- Static-Dynamic Integration of External Services into Generic Business Processes.- Knowledge Sifter: Agent-Based Ontology-Driven Search over Heterogeneous Databases Using Semantic Web Services.- Managing Grid Schemas Globally.- Posters.- Relational Graphical Models of Computational Workflows for Data Mining.- InfoGrid: Information Resource Integration.- Semantic Annotation of Classification Data for KDD Support Services.- Role of the Ontologies in the Context of Grid Computing and Application for the Human Disease Studies.- Cluster Entries for Semantic Organization ofPeer-to-Peer Network.- A Peer-to-Peer Service Supporting Data Quality: Design and Implementation Issues.- Analysis Patterns for the Geographic Database Conceptual Schema: An Ontology Aided Approach.…

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Semantics in Databases, held in Dagstuhl Castle, Germany, in January 2001.The 10 revised full papers presented together with an introduction by the volume editors were carefully selected during two rounds of reviewing. Among the aspects of database semantics discussed are semantic constraints, paraconsistency, logic foundations of databases, ER modeling, type hierarchies, null values, consistency enforcement, logic-based pattern languages, andsemantic classification of queries. Among the classes of databases dealt with are deductive databases, relational databases, distributed information systems, and tree-structured data.…

Softcover. Zustand: Gut. Gebraucht - Gut Zustand: Gut, IX, 229 p. Also available online. About this book This book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Semantics in Databases, held in Dagstuhl Castle, Germany, in January 2001. The 10 revised full papers presented together with an introduction by the volume editors were carefully selected during two rounds of reviewing. Among the aspects of database semantics discussed are semantic constraints, paraconsistency, logic foundations of databases, ER modeling, type hierarchies, null values, consistency enforcement, logic-based pattern languages, and semantic classification of queries. Among the classes of databases dealt with are deductive databases, relational databases, distributed information systems, and tree-structured data. Written for researchers and professionals.…

Paperback. Zustand: New. 2003 ed. This book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Semantics in Databases, held in Dagstuhl Castle, Germany, in January 2001.The 10 revised full papers presented together with an introduction by the volume editors were carefully selected during two rounds of reviewing. Among the aspects of database semantics discussed are semantic constraints, paraconsistency, logic foundations of databases, ER modeling, type hierarchies, null values, consistency enforcement, logic-based pattern languages, and semantic classification of queries. Among the classes of databases dealt with are deductive databases, relational databases, distributed information systems, and tree-structured data.…

PF. Zustand: New. This item is printed on demand. Brand new book, sourced directly from publisher. Dispatch time is 6-7 days from our warehouse. Book will be sent in robust, secure packaging to ensure it reaches you securely.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book presents a coherent suvey on exciting developments in database semantics. The origins of the volume date back to a workshop held in Prague, Czech Republic, in 1995. The nine revised full papers and surveys presented were carefully reviewed for inclusion in the book. They address more traditional aspects like dealing with integrity constraints and conceptual modeling as well as new areas of databases; object-orientation, incomplete information, database transformations and other issues are investigated by applying formal semantics, e.g. the evolving algebra semantics. 284 pp. Englisch.…

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Semantics in Databases, held in Dagstuhl Castle, Germany, in January 2001.The 10 revised full papers presented together with an introduction by the volume editors were carefully selected during two rounds of reviewing. Among the aspects of database semantics discussed are semantic constraints, paraconsistency, logic foundations of databases, ER modeling, type hierarchies, null values, consistency enforcement, logic-based pattern languages, andsemantic classification of queries. Among the classes of databases dealt with are deductive databases, relational databases, distributed information systems, and tree-structured data. 244 pp. Englisch.…

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The explosion in data exchange fostered by the success of the Web has restated semantics as a kernel issue in the development of services providing data and - formationtousersandapplicationsworldwide.Thisnewlydesignatedconference serieson SemanticsfortheNetworkedWorld uni esintoasingleframework the previous series on Database Semantics and Visual Database Systems that the IFIP WG 2.6 has been o ering since 1985. Whereas the intent of the conferenceseriesistoexploreinterestingresearchissuesrelatedtosemantics,the themeforthe2004editionis SemanticsforGridDatabases .Gridcomputing,a new eld concentrating on exible, secure, coordinated resource sharing among dynamic collections of individuals, institutions, and resources (also referred to as virtual organizations) , has gathered momentum in the context of providing shared infrastructures for large-scale scienti c computations and data analysis. Similarly, P2P computing has attracted substantial attention. Currently, attention is devoted to the provision of middleware services to makecomputationalresourcesinteroperableatthetechnicallevelandtoincrease the e ciency of use of physical resources. However, as Grid and P2P computing infrastructures are being increasingly adopted, they are likely to have typical problems of information overload that manifest themselves in any large-scale infrastructure for information and application sharing (e.g., the WWW). The need for resource discovery, application and service interoperability, integration and composition manifest themselves in these infrastructures. The ability to interoperate at the semantic level will largely determine the continued success and utilization of these infrastructures. 348 pp. Englisch. …

Kartoniert / Broschiert. Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. This book presents a coherent suvey on exciting developments in database semantics. The origins of the volume date back to a workshop held in Prague, Czech Republic, in 1995. The nine revised full papers and surveys presented were carefully reviewed for inc.…

Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Includes supplementary material: sn.pub/extrasInvited Talks.- Databases and the Grid: JDBC in WSDL, or Something Altogether Different.- Emergent Semantics Systems.- Integration.- User-Specific Semantic Integration of Heterogeneous Data: The SIRU. …

Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. &nbspThis book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Semantics in Databases, held in Dagstuhl Castle, Germany, in January 2001.The 10 revised full papers presented together with an int.…