Seller: Phatpocket Limited, Waltham Abbey, HERTS, United Kingdom
US$ 17.58
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Add to basketCondition: Good. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library, so some stamps and wear, but in good overall condition. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.
Published by Springer Berlin / Heidelberg, 1998
ISBN 10: 3540641998 ISBN 13: 9783540641995
Language: English
Seller: Better World Books, Mishawaka, IN, U.S.A.
Condition: Good. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages.
Seller: Anybook.com, Lincoln, United Kingdom
US$ 16.99
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Add to basketCondition: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. In good all round condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,450grams, ISBN:9783540641995.
Seller: Phatpocket Limited, Waltham Abbey, HERTS, United Kingdom
US$ 41.73
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Add to basketCondition: Acceptable. Used - Acceptable. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library with wear and barcode page may have been removed. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.
Seller: GuthrieBooks, Spring Branch, TX, U.S.A.
Paperback. Condition: Very Good. Ex-library paperback in very nice condition with the usual markings and attachments.
Seller: GuthrieBooks, Spring Branch, TX, U.S.A.
Paperback. Condition: Very Good. Ex-library paperback in very nice condition with the usual markings and attachments.
Seller: GreatBookPrices, Columbia, MD, U.S.A.
US$ 60.50
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Seller: Lucky's Textbooks, Dallas, TX, U.S.A.
US$ 59.16
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Seller: GreatBookPrices, Columbia, MD, U.S.A.
US$ 60.88
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Seller: Lucky's Textbooks, Dallas, TX, U.S.A.
US$ 59.54
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US$ 61.34
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Seller: Lucky's Textbooks, Dallas, TX, U.S.A.
US$ 60.00
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Published by Verlag Dr. Kovac, Hamburg, 1994
ISBN 10: 3860641506 ISBN 13: 9783860641507
Language: English
Seller: Verlag Dr. Kovac GmbH, Hamburg, Germany
First Edition
US$ 55.27
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Add to basketSoftcover. Condition: 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.
Seller: GreatBookPrices, Columbia, MD, U.S.A.
US$ 69.31
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Add to basketCondition: As New. Unread book in perfect condition.
Published by New York, NY, U.S.A. Springer-Verlag New York, Incorporated, 2003
ISBN 10: 3540009574 ISBN 13: 9783540009573
Language: English
Seller: CSG Onlinebuch GMBH, Darmstadt, Germany
US$ 37.82
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Add to basketSoftcover. Condition: 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.
Seller: Ria Christie Collections, Uxbridge, United Kingdom
US$ 68.33
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Seller: Ria Christie Collections, Uxbridge, United Kingdom
US$ 68.33
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Seller: Ria Christie Collections, Uxbridge, United Kingdom
US$ 70.68
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Seller: Chiron Media, Wallingford, United Kingdom
US$ 66.44
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Seller: GreatBookPricesUK, Woodford Green, United Kingdom
US$ 68.32
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US$ 68.32
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Seller: GreatBookPricesUK, Woodford Green, United Kingdom
US$ 70.67
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US$ 77.46
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Seller: GreatBookPricesUK, Woodford Green, United Kingdom
US$ 77.47
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US$ 17.44
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Add to basketCondition: As New. 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.
US$ 99.55
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Published by Springer Berlin Heidelberg, Springer Berlin Heidelberg Okt 2004, 2004
ISBN 10: 3540236090 ISBN 13: 9783540236092
Language: English
Seller: buchversandmimpf2000, Emtmannsberg, BAYE, Germany
US$ 64.41
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Add to basketTaschenbuch. Condition: Neu. 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.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 348 pp. Englisch.
Published by Springer Berlin Heidelberg, Springer Berlin Heidelberg Apr 2003, 2003
ISBN 10: 3540009574 ISBN 13: 9783540009573
Language: English
Seller: buchversandmimpf2000, Emtmannsberg, BAYE, Germany
US$ 64.41
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Add to basketTaschenbuch. Condition: Neu. 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, and semantic classification of queries. Among the classes of databases dealt with are deductive databases, relational databases, distributed information systems, and tree-structured data.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 244 pp. Englisch.
Published by Springer Berlin Heidelberg, 2003
ISBN 10: 3540009574 ISBN 13: 9783540009573
Language: English
Seller: AHA-BUCH GmbH, Einbeck, Germany
US$ 64.41
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Add to basketTaschenbuch. Condition: 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.