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What is re-ranking, and how does it improve RAG retrieval quality?
原题What is ColBERT, and how does late interaction retrieval work?
原题Compare reranker architectures: cross-encoder, ColBERT, and LLM-based rerankers.
原题How do you handle multi-document and multi-hop questions in RAG?
原题What is the "lost in the middle" problem in RAG systems?
原题How do you evaluate a RAG system? Explain faithfulness, relevance, and context precision/recall.
原题Explain Self-RAG. How does the model decide when to retrieve?
原题What is GraphRAG, and when would you use it over traditional RAG?
原题Vectorless RAG
原题How do you handle structured data (tables, SQL databases) in a RAG pipeline?
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