Short essays and practice notes — lighter than tutorials, still meant to be useful.

• Why Your RAG System Fails: Common Retrieval Issues and Fixes

  3 min read
  

  GUANHUA CHEN

  Aug 25, 2026

  Your RAG system returns irrelevant chunks and hallucinates answers? The problem isn't your LLM or embeddings; it's how you're doing retrieval. Three fixes that actually worked.

  #RAG#Large Language Models#AI Engineering#Vector Database#NLP