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arXiv 2403.04782cs.CLcs.AI
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时序知识图谱综述:表示学习与应用

A Survey on Temporal Knowledge Graph: Representation Learning and Applications

College of Computer Science and Technology, Guizhou University(贵州大学计算机科学与技术学院);Department of Industrial Engineering, Tsinghua University(清华大学工业工程系)

Li Cai, Xin Mao, Yuhao Zhou, Zhaoguang Long, Changxu Wu, Man Lan

AI总结:

本文针对现有研究多聚焦静态知识图谱、忽略其动态演化的问题,全面综述时序知识图谱表示学习及应用,介绍相关基础定义与指标,提出方法分类体系并深入分析,梳理下游应用并展望未来研究方向。

摘要:

知识图谱已获得大量研究关注,并被广泛用于增强下游应用。然而,当前大多数研究主要聚焦于事实不随时间变化的静态知识图谱,忽略了其随时间的动态演化。因此,由于大量结构化知识仅在特定时间段内存在,时序知识图谱受到了更多关注。知识图谱表示学习旨在为知识图谱中的实体和关系学习低维向量嵌入。时序知识图谱的表示学习将时间信息纳入标准知识图谱框架,能够建模实体和关系随时间变化的动态性。本文对时序知识图谱表示学习及其应用开展了全面综述。我们首先介绍了时序知识图谱表示学习的定义、数据集与评估指标。接着,我们基于时序知识图谱表示学习方法的核心技术提出了一种分类体系,并对每一类中的不同方法进行了深入分析。最后,我们介绍了与时序知识图谱相关的各类下游应用。文末对本文进行了总结,并对该领域未来的研究方向作出了展望。

英文摘要:

Knowledge graphs have garnered significant research attention and are widely used to enhance downstream applications. However, most current studies mainly focus on static knowledge graphs, whose facts do not change with time, and disregard their dynamic evolution over time. As a result, temporal knowledge graphs have attracted more attention because a large amount of structured knowledge exists only within a specific period. Knowledge graph representation learning aims to learn low-dimensional vector embeddings for entities and relations in a knowledge graph. The representation learning of temporal knowledge graphs incorporates time information into the standard knowledge graph framework and can model the dynamics of entities and relations over time. In this paper, we conduct a comprehensive survey of temporal knowledge graph representation learning and its applications. We begin with an introduction to the definitions, datasets, and evaluation metrics for temporal knowledge graph representation learning. Next, we propose a taxonomy based on the core technologies of temporal knowledge graph representation learning methods, and provide an in-depth analysis of different methods in each category. Finally, we present various downstream applications related to the temporal knowledge graphs. In the end, we conclude the paper and have an outlook on the future research directions in this area.

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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