arXiv:2601.21978cs.LG2026-01

融合图结构与知识引导编辑,提升时序知识图谱推理的可解释性。

Bridging Graph Structure and Knowledge-Guided Editing for Interpretable Temporal Knowledge Graph Reasoning

  • 用时序GNN提取可靠子图路径,确保推理基于真实结构数据。
  • 通过LLM引导编辑修复逻辑与语义不一致,提升路径合理性。
  • 在ICEWS数据集上相对基线提升5.6% Hits@1,适合需要可解释性的场景。

时序知识图谱推理(TKGR)旨在通过动态知识结构推断缺失实体以预测未来事件。现有基于大语言模型(LLM)的方法更关注上下文而非结构关系,难以从动态图中提取相关子图,导致对结构信息理解不足,推理结果杂乱且易产生幻觉,尤其在存在时间矛盾时。为此,本文提出IGETR(图与编辑增强型时序推理)框架,结合图神经网络(GNN)的结构建模能力与大语言模型(LLM)的上下文理解优势。IGETR采用三阶段流程:第一阶段利用时序GNN识别结构与时间上一致的候选路径,确保推理基于可信图证据;第二阶段引入LLM引导路径编辑,借助外部知识修正逻辑与语义不一致;第三阶段整合优化后的路径生成准确且可解释的预测。在标准TKG基准测试中,IGETR达到领先性能,在挑战性数据集ICEWS上,Hits@1相对提升最高达5.6%,Hits@3提升8.1%。消融实验与额外分析验证了各组件的有效性。

原文摘要 · Abstract (English)

Temporal knowledge graph reasoning (TKGR) aims to predict future events by inferring missing entities with dynamic knowledge structures. Existing LLM-based reasoning methods prioritize contextual over structural relations, struggling to extract relevant subgraphs from dynamic graphs. This limits structural information understanding, leading to unstructured, hallucination-prone inferences especially with temporal inconsistencies. To address this problem, we propose IGETR (Integration of Graph and Editing-enhanced Temporal Reasoning), a hybrid reasoning framework that combines the structured temporal modeling capabilities of Graph Neural Networks (GNNs) with the contextual understanding of LLMs. IGETR operates through a three-stage pipeline. The first stage aims to ground the reasoning process in the actual data by identifying structurally and temporally coherent candidate paths through a temporal GNN, ensuring that inference starts from reliable graph-based evidence. The second stage introduces LLM-guided path editing to address logical and semantic inconsistencies, leveraging external knowledge to refine and enhance the initial paths. The final stage focuses on integrating the refined reasoning paths to produce predictions that are both accurate and interpretable. Experiments on standard TKG benchmarks show that IGETR achieves state-of-the-art performance, outperforming strong baselines with relative improvements of up to 5.6% on Hits@1 and 8.1% on Hits@3 on the challenging ICEWS datasets. Additionally, we execute ablation studies and additional analyses confirm the effectiveness of each component.

时序知识图谱可解释推理图神经网络LLM融合

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