Towards Better Evolution Modeling for Temporal Knowledge Graphs

• URL: http://arxiv.org/abs/2602.08353v1
• Date: Mon, 09 Feb 2026 07:37:40 GMT
• Title: Towards Better Evolution Modeling for Temporal Knowledge Graphs
• Authors: Zhang Jiasheng, Li Zhangpin, Wang Mingzhe, Shao Jie, Cui Jiangtao, Li Hui,
• Abstract summary: Temporal knowledge graphs (TKGs) preserve evolving human knowledge.<n>Recent research has focused on designing models to learn the evolutionary nature of TKGs to predict future facts.<n>We find that existing benchmarks inadvertently introduce a shortcut.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Temporal knowledge graphs (TKGs) structurally preserve evolving human knowledge. Recent research has focused on designing models to learn the evolutionary nature of TKGs to predict future facts, achieving impressive results. For instance, Hits@10 scores over 0.9 on YAGO dataset. However, we find that existing benchmarks inadvertently introduce a shortcut. Near state-of-the-art performance can be simply achieved by counting co-occurrences, without using any temporal information. In this work, we examine the root cause of this issue, identifying inherent biases in current datasets and over simplified form of evaluation task that can be exploited by these biases. Through this analysis, we further uncover additional limitations of existing benchmarks, including unreasonable formatting of time-interval knowledge, ignorance of learning knowledge obsolescence, and insufficient information for precise evolution understanding, all of which can amplify the shortcut and hinder a fair assessment. Therefore, we introduce the TKG evolution benchmark. It includes four bias-corrected datasets and two novel tasks closely aligned with the evolution process, promoting a more accurate understanding of the challenges in TKG evolution modeling. Benchmark is available at: https://github.com/zjs123/TKG-Benchmark.

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