A Preliminary Logic-based Approach for Explanation Generation
A Preliminary Logic-based Approach for Explanation Generation
复制标题
一种基于逻辑的初步解释生成方法
DOI:
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发表时间:
2019
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通讯作者:
S. Vasileiou
中科院分区:
文献类型:
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作者:
S. Vasileiou
In an explanation generation problem, an agent needs to identify and explain the reasons for its decisions to another agent. Existing work in this area is mostly confined to planning-based systems that use automated planning approaches to solve the problem. In this paper, we approach this problem from a new perspective, where we propose a general logic-based framework for explanation generation. In particular, given a knowledge base KB1 that entails a formula φ and a second knowledge base KB2 that does not entail φ, we seek to identify an explanation that is a subset ofKB1 such that the union ofKB2 and entails φ. We define two types of explanations, modeland proof-theoretic explanations, and use cost functions to reflect preferences between explanations. Further, we present our algorithm implemented for propositional logic that compute such explanations and empirically evaluate it in random knowledge bases and