Data/ML/AIHigh signalEmergingAround since 2022
Reranking
Also written as Cross-Encoder, Reranker
A second pass that reorders search results by relevance using a slower, more accurate model — you retrieve fifty candidates cheaply, then carefully rank the top few.
Think of it like
A recruiter skimming a hundred CVs to a shortlist of ten, then reading those ten properly.
Junior or senior?
A real RAG-depth signal. Anyone who has genuinely tuned retrieval quality reaches for reranking; people who have only built a demo haven't.
Ask them
“What did you do when retrieval was returning relevant-looking but unhelpful chunks?”