Fix Bad RAG Queries Without Re-Indexing

Users ask vague questions, but technical documents use specific vocabulary. That semantic gap is why retrieval misses the right chunks. This video shows three ways to fix that without re-indexing: query rewriting (+43% score improvement), decomposition (surfaces docs direct search misses), and HyDE. 📚 This is Module 3 of a 10-part RAG course. New modules dropping regularly. ⏳ Chapters: 00:00 The Semantic Gap 00:52 Three Techniques 01:51 Code Setup 02:29 Query Rewriting 04:18 Query Decomposition 05:54 Automatic Routing 06:45 HyDE (Bonus) 08:29 Recap & What's Next 🔗 Links: Playlist: https:/…