Interview Q&A / AI & Generative AI
AI & Generative AI interview questions
LLMs, tokens, embeddings, RAG and prompt engineering, the questions every AI role now asks.
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- What is reranking in RAG, and why add it after retrieval?
Reranking takes the top candidates from fast retrieval, say 50, and rescores each with a more accurate but slower model that reads the query and passage together. You then send only the best few to the LLM, improving relevance.
IntermediateQuick answer1 min read