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Learning Dynamic and Static Representations for Extrapolation-Based Temporal Knowledge Graph Reasoning
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DOI：10.1109/TASLP.2024.3485500.png)
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摘要
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Temporal knowledge graph reasoning aims to predict the missing links (facts) in the future timestamps. However, most existing methods have a common limitation: they focus on learning dynamic representations of temporal knowledge graphs and rarely consider static characteristics that remain unchanged over time. To address the above issues, we propose to learn the dynamic and static representations for temporal knowledge graph reasoning (DSTKG), which introduces two latent variables to capture the dynamic and static characteristics of entities in temporal knowledge graphs. First, we use a Bi-GRU-based inference network to learn the static latent representation of historical facts and a nonlinear discrete-time transition-based inference network to learn the dynamic latent representation. Then, we sample the latent variables multiple times using re-parameterization tricks to obtain high-quality embeddings and make predictions in the future timestamps. The empirical results on four benchmark datasets show that our model is more effective than state-of-the-art approaches. Compared with the strong baseline model DBKGE (RotatE), the proposed model achieves performance improvements of 2.69%, 1.59%, 1.18% and 1.22% on Yago11k, Wikidata12k, ICEWS14 and ICEWS05-15 respectively, regarding the evaluation metric MRR.
Keyword:
Cognition
Knowledge graphs
Predictive models
Semantics
Computational modeling
Adaptation models
Speech processing
Interpolation
Gaussian distribution
Extrapolation
Knowledge graph embedding
latent variables
link prediction
temporal knowledge graph
期刊
I
IF:
5.1
论文数:
2.6K
被引数:
1.1W
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