A hybrid BM25 plus fine-tuned dense retrieval plus LLM cross-encoder pipeline achieves 66.43% MRR@5 on the CLEF CheckThat! 2025 subtask 4b test set, ranking 3rd of 31 teams.
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Deep Retrieval at CheckThat! 2025: Identifying Scientific Papers from Implicit Social Media Mentions via Hybrid Retrieval and Re-Ranking
A hybrid BM25 plus fine-tuned dense retrieval plus LLM cross-encoder pipeline achieves 66.43% MRR@5 on the CLEF CheckThat! 2025 subtask 4b test set, ranking 3rd of 31 teams.