《计算机应用》唯一官方网站 ›› 2022, Vol. 42 ›› Issue (7): 1985-1992.DOI: 10.11772/j.issn.1001-9081.2021050764

• 人工智能 • 上一篇    

基于关系记忆的胶囊网络知识图谱嵌入模型

陈恒1,2(), 王思懿1, 李正光1, 李冠宇2, 刘鑫1   

  1. 1.大连外国语大学 语言智能研究中心,辽宁 大连 116044
    2.大连海事大学 信息科学技术学院,辽宁 大连 116026
  • 收稿日期:2021-05-12 修回日期:2021-09-15 接受日期:2021-09-22 发布日期:2021-09-15 出版日期:2022-07-10
  • 通讯作者: 陈恒
  • 作者简介:王思懿(1998—),女(满),辽宁瓦房店人,硕士研究生,主要研究方向:机器学习、知识图谱
    李正光(1980—),男,四川资阳人,讲师,博士,主要研究方向:机器学习、自然语言处理
    李冠宇(1963—),男,辽宁丹东人,教授,博士,主要研究方向:机器学习、智能信息处理
    刘鑫(1982—),男,辽宁大连人,讲师,硕士,主要研究方向:机器学习、自然语言处理。
  • 基金资助:
    国家自然科学基金资助项目(61976032);辽宁省教育厅科学研究经费资助项目(2020JYT03)

Capsule network knowledge graph embedding model based on relational memory

Heng CHEN1,2(), Siyi WANG1, Zhengguang LI1, Guanyu LI2, Xin LIU1   

  1. 1.Research Center for Language Intelligence,Dalian University of Foreign Languages,Dalian Liaoning 116044,China
    2.Information Science and Technology College,Dalian Maritime University,Dalian Liaoning 116026,China
  • Received:2021-05-12 Revised:2021-09-15 Accepted:2021-09-22 Online:2021-09-15 Published:2022-07-10
  • Contact: Heng CHEN
  • About author:CHEN Heng, born in 1982, Ph. D. candidate, associate professor. His research interests include machine learning, knowledge completion.
    WANG Siyi, born in 1998, M. S. candidate. Her research interests include machine learning, knowledge graph.
    LI Zhengguang, born in 1980, Ph. D., lecturer. His research interests include machine learning, natural language processing.
    LI Guanyu, born in 1963, Ph. D., professor. His research interests include machine learning, intelligent information processing.
    LIU Xin, born in 1982, M. S., lecturer. His research interests include machine learning, natural language processing.
  • Supported by:
    National Natural Science Foundation of China(61976032);Scientific Research Funding Project of Educational Department of Liaoning Province(2020JYT03)

摘要:

作为一种语义知识库,知识图谱(KG)使用结构化三元组的形式存储真实世界的实体及其内在关系。为了推理知识图谱中缺失的真实三元组,考虑关系记忆网络较强的三元组表征能力和胶囊网络强大的特征处理能力,提出一种基于关系记忆的胶囊网络知识图谱嵌入模型。首先,通过编码实体和关系之间的潜在依赖关系和部分重要信息形成编码嵌入向量;然后,把嵌入向量与过滤器卷积以生成不同的特征图,再重组为对应的胶囊;最后,通过压缩函数和动态路由指定从父胶囊到子胶囊的连接,并根据子胶囊与权重内积的得分判断当前三元组的可信度。链接预测实验的结果表明,与CapsE模型相比,在倒数平均排名(MRR)和Hit@10评价指标上,所提模型在WN18RR数据集上分别提高了7.95%和2.2个百分点,在FB15K-237数据集上分别提高了3.82%和2个百分点。实验结果表明,所提模型可以更准确地推断出头实体和尾实体之间的关系。

关键词: 知识图谱, 关系记忆网络, 胶囊网络, 知识图谱嵌入, 动态路由

Abstract:

As a semantic knowledge base, Knowledge Graph (KG) uses structured triples to store real-world entities and their internal relationships. In order to infer the missing real triples in the knowledge graph, considering the strong triple representation ability of relational memory network and the powerful feature processing ability of capsule network, a knowledge graph embedding model of capsule network based on relational memory was proposed. First, the encoding embedding vectors were formed through the potential dependencies between encoding entities and relationships and some important information. Then, the embedding vectors were convolved with the filter to generate different feature maps, and the corresponding capsules were recombined. Finally, the connections from the parent capsule to the child capsule was specified through the compression function and dynamic routing, and the confidence coefficient of the current triple was estimated by the inner product score between the child capsule and the weight. Link prediction experimental results show that compared with CapsE model, on the Mean Reciprocal Rank (MRR) and Hit@10 evaluation indicators, the proposed model has the increase of 7.95% and 2.2 percentage points respectively on WN18RR dataset, and on FB15K-237 dataset, the proposed model has the increase of 3.82% and 2 percentage points respectively. Experiments results show that the proposed model can more accurately infer the relationship between the head entity and the tail entity.

Key words: Knowledge Graph (KG), relational memory network, capsule network, knowledge graph embedding, dynamic routing

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