Two-Stage-Retrieval
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Two-Stage Retrieval
Retrieve-then-rerank pipeline where a fast first-stage retriever (BM25 or bi-encoder) produces a candidate set, which a slower but more accurate reranker (cross-encoder) then orders.
Retrieve-then-rerank pipeline where a fast first-stage retriever (BM25 or bi-encoder) produces a candidate set, which a slower but more accurate reranker (cross-encoder) then orders.