Tag
query-rewriting
- Oct 6, 2026 Synonym Expansion at Index Time Versus Query Time Why expanding a thesaurus into the index and expanding it into the query produce the same postings but different costs, and how each choice changes scoring and phrase matching. information retrieval
- Nov 19, 2025 Edit-Distance Candidate Generation for Query Spelling Correction How a corrector enumerates candidate terms within a bounded edit distance, why the noisy-channel ranking decides the winner, and when a correction should be suppressed entirely. information retrieval
- Jun 28, 2025 Query Segmentation into Phrases for Ranked Retrieval Why a query without quotes still contains phrase structure, how segmentation models recover it, and what changes when segments are scored as units instead of loose terms. information retrieval