Pattern
Classical IR techniques in the LLM era
Cover the classical information retrieval techniques — query parsing, synonym expansion, learned-to-rank reranking, faceted filtering, intent classification — that predate LLM-driven retrieval and remain valuable in domains where structured queries and curated synonyms outperform LLM transformations.
Classification — Pre-LLM query understanding techniques still useful where domain structure is known.
Full entry
The complete treatment — problem, how it works, when to use it, sources, and examples — lives in the volume below.
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