arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2012.11957cs.AI
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基于语义相关感知的广义关系学习链接预测

Generalized Relation Learning with Semantic Correlation Awareness for Link Prediction

Nankai University(南开大学);Ludong University(鲁东大学);National University of Singapore(新加坡国立大学);RIKEN(日本理化学研究所);University of Innsbruck(因斯布鲁克大学)

Yao Zhang, Xu Zhang, Jun Wang, Hongru Liang, Wenqiang Lei, Zhe Sun, Adam Jatowt, Zhenglu Yang

摘要:

开发链接预测模型以自动完成知识图谱近来已成为重要研究兴趣的焦点。现有的链接预测方法存在两个问题:1)KG中的关系分布通常是不平衡的; 2)在实际应用中存在许多不可见的关系。这两个问题限制了现有链接预测模型的训练效果和实际应用。我们主张从整体上理解KG,并在这项工作中提出了一个统一的广义关系学习框架GRL来解决上述两个问题,它可以插入到现有的链接预测模型。GRL进行广义关系学习,它意识到关系之间的语义相关性,作为连接语义相似关系的桥梁。经过GRL训练后,向量空间中语义相似关系的贴近度和不相似关系的区分度都得到了提高。我们在六个基准测试上进行了全面的实验,以证明GRL在链接预测任务中的优越能力。特别是,GRL被发现,以提高现有的链接预测模型,使他们不敏感的不平衡的关系分布,并能够学习看不见的关系。

英文摘要:

Developing link prediction models to automatically complete knowledge graphs has recently been the focus of significant research interest. The current methods for the link prediction taskhavetwonaturalproblems:1)the relation distributions in KGs are usually unbalanced, and 2) there are many unseen relations that occur in practical situations. These two problems limit the training effectiveness and practical applications of the existing link prediction models. We advocate a holistic understanding of KGs and we propose in this work a unified Generalized Relation Learning framework GRL to address the above two problems, which can be plugged into existing link prediction models. GRL conducts a generalized relation learning, which is aware of semantic correlations between relations that serve as a bridge to connect semantically similar relations. After training with GRL, the closeness of semantically similar relations in vector space and the discrimination of dissimilar relations are improved. We perform comprehensive experiments on six benchmarks to demonstrate the superior capability of GRL in the link prediction task. In particular, GRL is found to enhance the existing link prediction models making them insensitive to unbalanced relation distributions and capable of learning unseen relations.

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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