A reranker is a second-stage model that evaluates a small candidate set more deeply and reorders it for relevance after a fast initial retrieval. This guide explains the mechanism, trade-offs, evaluation, and controls that matter in practice.
A reranker is a second-stage model that evaluates a small candidate set more deeply and reorders it for relevance after a fast initial retrieval. This guide explains the mechanism, trade-offs, evaluation, and controls that matter in practice.