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题名:
a default approach to semantics of logic programs with constraint atoms
作者: Shen Yi-Dong ; You Jia-Huai
会议文集: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
会议名称: 10th International Conference on Logic Programming and Nonmonotonic Reasoning
会议日期: SEP 14-18,
出版日期: 2009
会议地点: Potsdam, GERMANY
关键词: Atoms ; Logic programming
出版者: LOGIC PROGRAMMING AND NONMONOTONIC REASONING, PROCEEDINGS
出版地: HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
ISSN: 0302-9743
ISBN: 978-3-642-04237-9
部门归属: Shen, Yi-Dong Chinese Acad Sci, Inst Software, State Key Lab Comp Sci, Beijing 100190, Peoples R China.
英文摘要: We define the semantics of logic programs with (abstract) constraint atoms in a way closely tied to default logic. Like default logic formulas in rules are evaluated using the classical entailment relation, so a constraint atom can be represented by an equivalent propositional formula. Therefore, answer sets are defined in a way closely related to default extensions. The semantics defined this way enjoys two properties generally considered desirable for answer set programming - minimality and derivability. The derivability property is very important because it guarantees free of self-supporting, loops in answer sets. We show that a when restricted to basic logic programs, this semantics agrees with the conditional-satisfaction based semantics. Furthermore, answer sets by the minimal-model based semantics can be recast in our approach. Consequently, the default, approach gives a unifying account of the major existing semantics for logic programs with constraint atoms. This also makes it possible to characterize, in terms of the, minimality mid derivability properties, the precise relationship between them and contrast with others.
内容类型: 会议论文
URI标识: http://ir.iscas.ac.cn/handle/311060/8326
Appears in Collections:计算机科学国家重点实验室 _会议论文

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Recommended Citation:
Shen Yi-Dong,You Jia-Huai. a default approach to semantics of logic programs with constraint atoms[C]. 见:10th International Conference on Logic Programming and Nonmonotonic Reasoning. Potsdam, GERMANY. SEP 14-18,.
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