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    注意力增强的语义融合知识图谱表示学习框架

    Attention-Enhanced Semantic Fusion Knowledge Graph Representation Learning Framework

    • 摘要: 当前知识图谱通常存在不完整性的挑战,可以通过链接预测任务对缺失信息进行补全来缓解这一问题. 然而,大部分知识图谱补全方法过度关注对嵌入特征的提取,没有充分考虑预测节点邻域信息、全局特征信息和方向特征信息中所包含的复杂语义,难以准确预测出缺失的信息. 提出一种通用的表示学习语义增强框架ASFR,利用注意力机制提取知识图谱局部关联信息、知识图谱结构特征,结合位置信息对现有的知识图谱表示学习模型进行增强. 将3种知识图谱附加信息嵌入到知识图谱的实体向量中,提高知识图谱表示向量的质量. 我们在5种不同类别的经典方法中进行对比实验,结果显示ASFR框架在3个公开数据集上性能的提升幅度为6.89%,能够有效增强模型的预测能力.

       

      Abstract: Knowledge graphs often face the challenge of incompleteness, which can be alleviated by completing missing information through link prediction tasks. However, most knowledge graph completion works overly focus on extracting embedding features without sufficiently considering the complex semantics contained in the predicted node neighborhood information, global feature information, and directional feature information, making it difficult to accurately predict the missing information. This paper proposes a general representation learning semantic enhancement framework, ASFR, which utilizes an attention mechanism to extract local association information of the knowledge graph and structural features of the knowledge graph, and enhances existing knowledge graph representation learning models by incorporating positional information. By embedding these three types of additional knowledge graph information into the entity vectors of the knowledge graph, the quality of the knowledge graph representation vectors is improved. Comparative experiments are conducted using five different categories of classical methods, and the results indicate that this framework can effectively enhance the predictive capability of models, achieving an improvement of 6.89% on three public datasets.

       

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