Titlebook: Semantics in Databases; Second International Leopoldo Bertossi,Gyula O. H. Katona,Bernhard Thal Conference proceedings 2003 Springer-Verlag

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Conference proceedings 2003s, 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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Cardinality Constraints in Disjunctive Deductive Databases, with sets of exactly-cardinality constraints (i.e., where θ is “=”). Reasoning with . . is very efficient, and it can be used for performance reasons before . . is evaluated. For obtaining ., however, . . is necessary, since we show the theoretical result that a sound and complete calculus for exactly- cardinality constraints does not exist.

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José María Turull Torrestrol (ILC) is well-recognized as an e?cient method that o?ers signi?cant p- formance improvement for systems that operate in an iterative or repetitive fashion (e. g. , robot arms in manufacturing or batch processes in an industrial setting). Though the fundamentals of ILC design have been well-addr

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