论文标题
随时加强知识图完成的自下而上的规则学习
Reinforced Anytime Bottom Up Rule Learning for Knowledge Graph Completion
论文作者
论文摘要
当今的大多数关于知识图完成的工作都涉及子符号的方法,该方法的重点是将给定图嵌入低维矢量空间的概念。在这种趋势上,我们提出了一种植根于符号空间的方法。它的核心算法基于采样路径,该路径被推广到角规则中。先前发表的结果表明,Anyburl的预测质量与当前最新水平的水平相同,具有为预测事实提供解释的其他好处。在本文中,我们关注Anyburl的两个扩展。首先,我们将对规则的任何解释从$θ$ -subspottion更改为对象身份下的$θ$ -Subsumption。其次,我们介绍了增强学习,以更好地指导抽样过程。我们发现,强化学习有助于在搜索过程中早些时候找到更多有价值的规则。我们衡量扩展的影响,并将结果方法与当前的艺术方法进行比较。我们的结果表明,Anyburl的表现优于大多数亚符号方法。
Most of todays work on knowledge graph completion is concerned with sub-symbolic approaches that focus on the concept of embedding a given graph in a low dimensional vector space. Against this trend, we propose an approach called AnyBURL that is rooted in the symbolic space. Its core algorithm is based on sampling paths, which are generalized into Horn rules. Previously published results show that the prediction quality of AnyBURL is on the same level as current state of the art with the additional benefit of offering an explanation for the predicted fact. In this paper, we are concerned with two extensions of AnyBURL. Firstly, we change AnyBURLs interpretation of rules from $Θ$-subsumption into $Θ$-subsumption under Object Identity. Secondly, we introduce reinforcement learning to better guide the sampling process. We found out that reinforcement learning helps finding more valuable rules earlier in the search process. We measure the impact of both extensions and compare the resulting approach with current state of the art approaches. Our results show that AnyBURL outperforms most sub-symbolic methods.