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arXiv 1502.07628cs.AI
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描述逻辑中基于松弛的修正算子

Relaxation-based revision operators in description logics

Centrale Supélec(中央理工-高等电力学院);PSL, Université Paris-Dauphine(巴黎文理研究大学巴黎多菲纳大学);Institut Mines-Telecom, Telecom ParisTech(矿业电信联盟巴黎高等电信学院)

Marc Aiguier, Jamal Atif, Isabelle Bloch, Céline Hudelot

摘要:

随着本体和描述逻辑(DL)接触到更广泛的受众,在此背景下开发了几种推理服务。信念修正就是其中之一,当知识容易变化和不一致时,信念修正是最重要的。在本文中,我们解决了众所周知的AGM假设的推广,并在不同的DL家庭的具体和良好的基础修订运营商的定义。我们介绍了一个模型理论版本的AGM假设的一般定义的不一致,从而扩大其范围广泛的家庭的非经典逻辑,特别是负自由DL家庭。我们提出了一个一般的框架,定义修订运营商的基础上放松的概念,最近推出的定义DL概念之间的相异性措施。在这个框架中的一个修正算子相当于放松旧信念的模型集,直到它到达新知识的模型集。我们证明了这样一个基于松弛的修正算子定义了一个忠实的分配,并满足广义AGM假设。另一个重要的贡献涉及几个具体的松弛算子的定义适合于一些DL的语法(ALC及其片段EL和ELU)。

英文摘要:

As ontologies and description logics (DLs) reach out to a broader audience, several reasoning services are developed in this context. Belief revision is one of them, of prime importance when knowledge is prone to change and inconsistency. In this paper we address both the generalization of the well-known AGM postulates, and the definition of concrete and well-founded revision operators in different DL families. We introduce a model-theoretic version of the AGM postulates with a general definition of inconsistency, hence enlarging their scope to a wide family of non-classical logics, in particular negation-free DL families. We propose a general framework for defining revision operators based on the notion of relaxation, introduced recently for defining dissimilarity measures between DL concepts. A revision operator in this framework amounts to relax the set of models of the old belief until it reaches the sets of models of the new piece of knowledge. We demonstrate that such a relaxation-based revision operator defines a faithful assignment and satisfies the generalized AGM postulates. Another important contribution concerns the definition of several concrete relaxation operators suited to the syntax of some DLs (ALC and its fragments EL and ELU).

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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