BioELX: Cross-lingual Biomedical Entity Linking via Alias-based Retrieval and LLM Ranking

In three linesBioELX is a two-stage cross-lingual biomedical entity linking system requiring no annotated training data. It enriches SapBERT with Wikidata-derived multilingual aliases and uses an LLM for context-aware disambiguation. On five benchmarks, it achieves +19.2 Recall@1 on XL-BEL, with major gains for low-resource languages (Turkish +21.6, Korean +22.1, Thai +30.8).

Summary generated by Claude — human-verified