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arXiv cs/0107028cs.AIcs.LO
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答案集程序设计中的命题可满足性

Propositional satisfiability in answer-set programming

Deborah East, Miroslaw Truszczynski

摘要:

我们表明,命题逻辑及其扩展可以支持答案集编程的方式一样,稳定的逻辑编程和析取逻辑编程。为此,我们介绍了一个逻辑的基础上的逻辑命题图式和封闭世界假设的一个版本。我们称之为CWA(PS+,符号)命题图式的扩展逻辑。这种逻辑的一个重要特征是它支持对集合基数的约束进行显式建模。在本文中,我们刻画了一类问题,可以解决的有限PS+理论。我们实现了一个基于PS+逻辑的编程系统,并在PS+中设计和实现了一个处理理论的求解器。我们提出了令人鼓舞的性能结果,我们的方法-我们表明,它是有竞争力的模型,一个国家的最先进的答案集编程系统的基础上稳定的逻辑编程。

英文摘要:

We show that propositional logic and its extensions can support answer-set programming in the same way stable logic programming and disjunctive logic programming do. To this end, we introduce a logic based on the logic of propositional schemata and on a version of the Closed World Assumption. We call it the extended logic of propositional schemata with CWA (PS+, in symbols). An important feature of this logic is that it supports explicit modeling of constraints on cardinalities of sets. In the paper, we characterize the class of problems that can be solved by finite PS+ theories. We implement a programming system based on the logic PS+ and design and implement a solver for processing theories in PS+. We present encouraging performance results for our approach --- we show it to be competitive with smodels, a state-of-the-art answer-set programming system based on stable logic programming.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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