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arXiv 2010.02602cs.AIcs.CL
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知识图谱推理的联合语义和数据驱动路径表示

Joint Semantics and Data-Driven Path Representation for Knowledge Graph Inference

Beihang University(北京航空航天大学);Pengcheng Laboratory(鹏城实验室);Chongqing University(重庆大学);Beijing University of Posts and Telecommunications(北京邮电大学);Hikvision Research Institute(海康威视研究院)

Guanglin Niu, Bo Li, Yongfei Zhang, Yongpan Sheng, Chuan Shi, Jingyang Li, Shiliang Pu

摘要:

大规模知识图谱(KG)上的推理对于像问答这样的KG应用是非常重要的。基于路径的推理模型可以利用KG中除纯三元组以外的其他路径信息,但现有的基于路径的方法都是数据驱动的,缺乏对路径表示的可解释性。此外,一些方法要么只考虑关系路径,要么忽略路径中实体和关系之间的异构性,不能很好地捕捉路径的丰富语义。为了解决上述挑战,在这项工作中,我们提出了一种新的联合语义和数据驱动的路径表示,平衡可解释性和泛化的框架KG嵌入。更具体地说,我们注入喇叭规则,以获得凝聚路径的透明和可解释的路径组合过程。实体转换器将路径上的实体转换为语义级的关系表示,以减少实体和关系之间的异构性,其中考虑了具有类型信息和不具有类型信息的KG。我们提出的模型进行评估两类任务:链接预测和路径查询应答任务。实验结果表明,它有一个显着的性能增益超过几个不同的国家的最先进的基线。

英文摘要:

Inference on a large-scale knowledge graph (KG) is of great importance for KG applications like question answering. The path-based reasoning models can leverage much information over paths other than pure triples in the KG, which face several challenges: all the existing path-based methods are data-driven, lacking explainability for path representation. Besides, some methods either consider only relational paths or ignore the heterogeneity between entities and relations both contained in paths, which cannot capture the rich semantics of paths well. To address the above challenges, in this work, we propose a novel joint semantics and data-driven path representation that balances explainability and generalization in the framework of KG embedding. More specifically, we inject horn rules to obtain the condensed paths by the transparent and explainable path composition procedure. The entity converter is designed to transform the entities along paths into the representations in the semantic level similar to relations for reducing the heterogeneity between entities and relations, in which the KGs both with and without type information are considered. Our proposed model is evaluated on two classes of tasks: link prediction and path query answering task. The experimental results show that it has a significant performance gain over several different state-of-the-art baselines.

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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