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Ben J. Nathanson

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Book Open access Oct 2026

Frozen Embeddings, LLM Retrieval Lanes, Critic-Guided Replies: Conversational Music Recommendation at an Information-Limited Ceiling

Team volart’s submission to the RecSys 2026 Music-CRS challenge is a three-stage pipeline that needs no local GPU (every learned component trains on CPU or calls a hosted API): multi-lane retrieval fused by Reciprocal Rank Fusion, a LambdaMART reranker, and a critic-guided response stage. It placed 2nd overall and 1st...

Artem Volgin, Ben J. Nathanson, Daniele Dal Grande et al. · 1 citation · ⚡1

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