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arXiv 0711.1016cs.LO
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PDL可满足性的动态表基决策方法

An On-the-fly Tableau-based Decision Procedure for PDL-Satisfiability

Pietro Abate, Rajeev Goré, Florian Widmann

摘要:

提出了一种基于表格的命题动态逻辑可满足性判定算法,该算法建立一个具有祖先循环的有限根树,并在回溯过程中将子循环的额外信息传递给父循环,以区分好循环和坏循环.它很容易实现,具有并行化的潜力,因为它通过独立地探索每个tableau分支来构建一个伪模型。但它的最坏情况行为是2EXPTIME而不是EXPTIME。TWB(http://www.example.com)中的原型实现是可用的。twb.rsise.anu.edu.au

英文摘要:

We present a tableau-based algorithm for deciding satisfiability for propositional dynamic logic (PDL) which builds a finite rooted tree with ancestor loops and passes extra information from children to parents to separate good loops from bad loops during backtracking. It is easy to implement, with potential for parallelisation, because it constructs a pseudo-model ``on the fly'' by exploring each tableau branch independently. But its worst-case behaviour is 2EXPTIME rather than EXPTIME. A prototype implementation in the TWB (http://twb.rsise.anu.edu.au) is available.

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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