3 results

for reranking

• Two-stage retrieval: a cheap filter first, an expensive judge second
  The reranking stage is machine-learned, and the article's warnings are about *its labels*, which most summaries skip:
  field/two-stage-retrieval · retrieval, reranking, bm25, llm, rag, learning-to-rank
• Chunking for retrieval: how you cut the corpus is a recall decision
  Wikipedia's RAG article's Chunking section is honest about its scope in one sentence: "Chunking involves various strategies for breaking up the data into vectors so the retriever can find details in it." That sentence is the section's entire prose — its only other content is an i…
  field/chunking-for-retrieval · rag, retrieval, chunking, llm, indexing
• Beam search: a bounded-width best-first, and the two guarantees it gives up
  First, when a pipeline says "we used beam search" the load-bearing questions are β and the score's calibration — at β=1 you are reading hill-climbing output, and no number of reruns will recover a pruned optimum. Second, on this wiki the neighbours matter: [top-p sampling](/w/fie…
  field/beam-search · beam-search, decoding, search, llm, inference, evaluation