《计算机应用》唯一官方网站 ›› 2025, Vol. 45 ›› Issue (6): 1817-1826.DOI: 10.11772/j.issn.1001-9081.2024060792

• 人工智能 • 上一篇    

融合噪声过滤的超关系知识图谱补全方法

刘爽(), 刘大庆, 孟佳娜, 赵迪   

  1. 大连民族大学 计算机科学与工程学院,辽宁 大连 116600
  • 收稿日期:2024-06-14 修回日期:2024-08-30 接受日期:2024-09-05 发布日期:2024-09-25 出版日期:2025-06-10
  • 通讯作者: 刘爽
  • 作者简介:刘爽(1977—),女,辽宁锦州人,教授,博士,CCF会员,主要研究方向:知识图谱、深度学习 dlnuliushuang@qq.com
    刘大庆(1999—),男,河北张家口人,硕士研究生,主要研究方向:知识图谱补全、链接预测
    孟佳娜(1972—),女,吉林四平人,教授,博士,CCF会员,主要研究方向:机器学习、文本挖掘
    赵迪(1991—),男,吉林四平人,讲师,博士,主要研究方向:数据挖掘、自然语言处理。
  • 基金资助:
    2023年度教育部人文社会科学研究规划基金资助项目(23YJA860010)

Hyper-relational knowledge graph completion method fusing noise filtering

Shuang LIU(), Daqing LIU, Jiana MENG, Di ZHAO   

  1. Computer Science and Engineering College,Dalian Minzu University,Dalian Liaoning 116600,China
  • Received:2024-06-14 Revised:2024-08-30 Accepted:2024-09-05 Online:2024-09-25 Published:2025-06-10
  • Contact: Shuang LIU
  • About author:LIU Shuang, born in 1977, Ph. D., professor. Her research interests include knowledge graph, deep learning.
    LIU Daqing, born in 1999, M. S. candidate. His research interests include knowledge graph completion, link prediction.
    MENG Jiana, born in 1972, Ph. D., professor. Her research interests include machine learning, text mining.
    ZHAO Di, born in 1991, Ph. D., lecturer. His research interests include data mining, natural language processing.
  • Supported by:
    2023 Humanities and Social Sciences Research and Planning Fund of Ministry of Education(23YJA860010)

摘要:

针对超关系知识图谱中限定符会为主三元组引入无关噪声的问题,提出一种融合噪声过滤的超关系知识图谱补全方法(HRNF)。首先,为了有效增强超关系事实,构建特征增强模块;同时,利用卷积神经网络(CNN)提取普通三元组特征,并通过异构图神经网络(HGNN)捕获超关系事实中的复杂关系特征;其次,融合这2种特征,利用普通三元组的稳定性与可靠性增强超关系事实中主三元组的信息,减少限定符引入噪声的影响;再次,为了更准确地融合特征表示,构建相关性感知模块;同时,利用图注意力网络(GATv2),通过动态学习不同节点间的权重更新增强后的特征表示;继次,为了捕获复杂的语义信息,构建语义增强模块;最后利用Transformer模型,通过自注意力机制捕获序列中任意2个元素之间的依赖关系,从而生成最终的预测序列。为了验证HRNF的有效性,在2个常用的数据集Wikipeople和JF17K上进行广泛的实验。结果表明,相较于基线方法中较优的GRAN(GRAph-based N-ary relational learning),在预测主三元组实体时,HRNF在Wikipeople数据集上的平均倒数排名(MRR)、Hits@1和Hits@10分别提升了0.6、1.1和1.8个百分点,在JF17K数据集上的MRR、Hits@1和Hits@10分别提升了0.5、0.7和2.9个百分点。以上这些显著提升证明了HRNF在处理超关系知识图谱补全任务中可以有效地缓解限定符带来的噪声问题。

关键词: 噪声过滤, 限定符, 超关系事实, 超关系知识图谱补全, 普通三元组

Abstract:

Aiming at the problem that qualifiers in the hyper-relational knowledge graph will introduce irrelevant noise into the main triple, a Hyper-Relational knowledge graph completion method fusing Noise Filtering (HRNF) was proposed. Firstly, a feature enhancement module was constructed in order to enhance the hyper-relational facts effectively. At the same time, Convolutional Neural Network (CNN) was utilized to extract the ordinary triple features, and complex relational features in the hyper-relational fact were captured by Heterogeneous Graph Neural Network (HGNN). Secondly, these two features were fused to enhance information of the main triple in the hyper-relational fact by utilizing stability and reliability of the ordinary triple, so as to reduce the effect of noise introduced by qualifiers. Thirdly, a relevance-aware module was constructed to fuse the feature representations more accurately. At the same time, Graph ATtention network version Two(GATv2) was utilized to update the enhanced feature representation by learning weights among different nodes dynamically. Fourthly, a semantic enhancement module was constructed to capture complex semantic information. Finally, Transformer model was utilized to generate the final predicted sequence by capturing the dependency between any two elements in the sequence through self-attention mechanism. To validate the effectiveness of HRNF, extensive experiments were conducted on two commonly used datasets, Wikipeople and JF17K. The results show that when predicting main triple entities, compared to the optimal GRAN (GRAph-based N-ary relational learning) of the baseline methods, the Mean Reciprocal Rank (MRR), Hits@1, and Hits@10 of HRNF are improved by 0.6, 1.1, and 1.8 percentage points, respectively, on Wikipeople dataset, and the MRR, Hits@1, and Hits@10 of HRNF are improved by 0.5, 0.7, and 2.9 percentage points, respectively, on JF17K dataset. The above significant improvements prove that in dealing with task of hyper-relational knowledge graph completion, HRNF can reduce the noise problem brought by qualifiers effectively.

Key words: noise filtering, qualifier, hyper-relational fact, hyper-relational knowledge graph completion, ordinary triple

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