Titlebook: Logic Programming and Nonmonotonic Reasoning; Third International V. Wiktor Marek,Anil Nerode,M. Truszczyński Conference proceedings 1995

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Li Yan Yuan,Jia Huai You for academics, students and practitioners in mechanical engineering, design, researchers in the field and teaching staff. This book is can also be used in the final year of the studies of MSc students or in the beginning of the studies of PhD students in mechanics and computation sciences..

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Complexity results for abductive logic programming, from the area of knowledge representation and reasoning. The main part of the paper addresses the issue of the computational complexity of the principal decisional problems in abductive reasoning, which are: Given an instance of an abduction problem (i) does the problem have solution (i.e., an expl

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A terminological interpretation of (abductive) logic programming,s a terminological logic. A terminological logic is designed to represent two different forms of knowledge. A TBox represents definitions for a set of concepts. An ABox represents the . of the expert. In our interpretation, a logic program is a TBox providing definitions for all predicates; this int

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An operator for composing deductive data bases with theories of constraints, database. The operation is given an abstract semantics in terms of the immediate consequence operator. A transformational implementation is given and its correctness is proved with respect to the abstract semantics.

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Characterizations of the stable semantics by partial evaluation,tified programs) and STABLE (defined for the whole class of all disjunctive programs). While there are various competitors based on 3-valued models, notably WFS and its disjunctive counterparts, there are no other semantics consisting of 2-valued models. We argue that the reason for this is the .-pr

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Game characterizations of logic program properties,layers in order to avoid losing. The players are representable as interacting almost independent logic programs. A correspondence between winning strategies, well-founded dependencies, constructive ordinals and hyperarithmetic sets is presented. Complexity results can be obtained for logic program p