让知识图谱补全同时考虑常识,提升推理合理性。
A Pluggable Common Sense-Enhanced Framework for Knowledge Graph Completion
- 通过可插拔框架融合事实与隐含常识进行补全
- 在多个数据集上优于现有模型,尤其适合概念丰富的图谱
- 支持自动生成常识,适配不同复杂度的知识图谱
知识图谱补全(KGC)旨在为知识图谱推断缺失事实,服务于多种知识密集型应用。现有基于嵌入的KGC方法主要依赖事实三元组,可能导致结果与常识矛盾。此外,显式构建常识通常不切实际或成本高昂。为此,我们提出一种可插拔的常识增强型KGC框架,同时利用事实和常识信息进行补全。该框架可根据实体概念丰富程度自适应调整,并能从事实三元组中自动生成显式或隐式常识。针对概念丰富的图谱,引入常识引导的负采样和粗到细推理策略;对于缺乏概念的图谱,设计了结合关系感知概念嵌入的双评分机制。重要的是,该方法可作为模块化组件集成至多种知识图谱嵌入(KGE)模型中,支持常识与事实联合训练与推理。实验表明,本框架具有良好的可扩展性,在多个KGC任务中表现优于现有模型。
原文摘要 · Abstract (English)
Knowledge graph completion (KGC) tasks aim to infer missing facts in a knowledge graph (KG) for many knowledge-intensive applications. However, existing embedding-based KGC approaches primarily rely on factual triples, potentially leading to outcomes inconsistent with common sense. Besides, generating explicit common sense is often impractical or costly for a KG. To address these challenges, we propose a pluggable common sense-enhanced KGC framework that incorporates both fact and common sense for KGC. This framework is adaptable to different KGs based on their entity concept richness and has the capability to automatically generate explicit or implicit common sense from factual triples. Furthermore, we introduce common sense-guided negative sampling and a coarse-to-fine inference approach for KGs with rich entity concepts. For KGs without concepts, we propose a dual scoring scheme involving a relation-aware concept embedding mechanism. Importantly, our approach can be integrated as a pluggable module for many knowledge graph embedding (KGE) models, facilitating joint common sense and fact-driven training and inference. The experiments illustrate that our framework exhibits good scalability and outperforms existing models across various KGC tasks.
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