AI RESEARCH
OntoTKGE: Ontology-Enhanced Temporal Knowledge Graph Extrapolation
arXiv CS.AI
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ArXi:2604.05468v1 Announce Type: new Temporal knowledge graph (TKG) extrapolation is an important task that aims to predict future facts through historical interaction information within KG snapshots. A key challenge for most existing TKG extrapolation models is handling entities with sparse historical interaction. The ontological knowledge is beneficial for alleviating this sparsity issue by enabling these entities to inherit behavioral patterns from other entities with the same concept, which is ignored by previous studies.