Reranker
Represent a secondary ranking stage for retrieved candidates.
Category: Query. Registry label: Reranker. Registry subtitle: Cross-encoder re-scoring.
Purpose #
A reranker re-evaluates candidate results after initial retrieval and produces an ordering better aligned with a query. A cross-encoder-based reranker is one way to score query-and-passage pairs.
Position in the graph #
Hybrid Retriever → Reranker → LLM
Design guidance #
Place the Reranker after the Hybrid Retriever in the provided Hybrid Search template. Distinguish reranking from the initial retrieval stage when explaining a graph to collaborators.
Current limitation #
No candidates are scored by a cross-encoder or other runtime model in this frontend preview.