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This paper introduces PEARL, a novel framework for inductive knowledge graph completion that leverages context-specific subgraphs to enhance the predictive accuracy of relational paths. By integrating a large language model-guided retriever for semantic path retrieval and employing a dual-view contrastive objective, PEARL effectively adapts path embeddings to both local and global structural contexts. Experimental results demonstrate that PEARL outperforms existing methods on standard benchmarks, achieving the highest average Hits@10 across WN18RR, FB15k-237, and NELL-995.
PEARL achieves state-of-the-art performance in inductive knowledge graph completion by intelligently aligning relational paths with their contextual subgraphs.
Inductive knowledge graph completion (IKGC) aims to predict missing links involving entities unseen during training, requiring models to learn transferable relational and structural patterns. Existing subgraph- and path-based approaches often encode relational paths independently of their surrounding query subgraphs, although the predictive relevance of a path may vary across structural contexts. We propose PEARL, a Path-Entity Aligned Relational Learning framework that models paths as context-conditioned reasoning signals. PEARL constructs a query-specific contextual subgraph from the union of the query entities'neighborhoods and uses a large language model (LLM)-guided retriever to distill semantically relevant paths. It then builds a bipartite interaction graph over paths, contextual entities, and a global subgraph representation, allowing path embeddings to adapt to local and global structural evidence. To suppress noise introduced by the enlarged context, PEARL employs a dual-view contrastive objective that promotes representation consistency under stochastic contextual perturbations. Experiments on WN18RR, FB15k-237, and NELL-995 show that PEARL obtains the best average Hits@10 among the compared IKGC methods on all three benchmarks. Ablation studies, efficiency analyses, and case studies further validate the contributions of contextual subgraph modeling, semantic path retrieval, path-entity interaction, and contrastive regularization.
