桥梁图形结构和以知识为导向的编辑,以实现可解释的时间知识图形推理
Shiqi Fan1, Quanming Yao2, Hongyi Nie3
1School of Cybersecurity, Northwestern Polytechnical University, Xi'an, 710072, Shaanxi, China; Department of Data Science and Artificial Intelligence, The Hong Kong Polytechnic University, Hong Kong, 999077, China.
概括
我们介绍了IGETR,这是一个用于时间知识图推理 (TKGR) 的新框架. 它集成了图形神经网络 (GNN) 和大型语言模型 (LLM),以提高预测准确性和减少动态知识结构中的幻觉.
科学领域:
- 人工智能的人工智能
- 数据科学数据科学数据科学
- 知识表示 知识表示
背景情况:
- 现有的基于时间知识图推理 (TKGR) 的基于大型语言模型 (LLM) 的方法与动态图结构扎,优先考虑上下文而不是结构关系.
- 这导致提取相关子图的困难,导致非结构化和易于幻觉的推断,特别是具有时间不一致的推断.
研究的目的:
- 提出IGETR (图形集成和编辑增强的时间推理),一个混合框架,将图形神经网络 (GNN) 和LLM结合起来,以实现强大的TKGR.
- 增强动态图中的结构信息的理解,提高未来事件预测的准确性和可解释性.
主要方法:
- IGETR采用三阶段管道:时间GNN用于识别连贯路径,LLM指导编辑用于改进路径,以及最终预测的集成.
- 该框架通过由时间GNN识别的结构和时间连贯路径对数据进行推理.
- 通过LLM引导的路径编辑利用外部知识来纠正初始路径中的逻辑和语义不一致.
主要成果:
- 在标准的TKGR基准指标上,IGETR实现了最先进的性能,包括具有挑战性的ICEWS数据集.
- 与强大的基线相比,在Hits@1上观察到高达5.6%的相对改善,在Hits@3上观察到8.1%.
- 废弃性研究和额外的分析证实了IGETR框架内的每个组件的有效性.
结论:
- 拟议的IGETR框架通过整合GNN和LLMs,有效地解决了现有的基于LLM的TKGR方法的局限性.
- 通过动态知识图,IGETR在预测未来事件方面表现出卓越的表现,提供准确和可解释的结果.
- 混合方法增强了结构信息的理解,并减少了时间推理中的推理相关的幻觉.
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