AI Glossary Term

What does “Reranker” mean?

Definition

A model that reorders an initial set of retrieved results to put the most relevant items at the top.

Related terms

Retrieval Precision
The proportion of retrieved items that are relevant to the user's query.
Top-k Sampling
A decoding strategy that samples only from the k most likely next tokens.
Top-p (Nucleus) Sampling
A decoding strategy that samples from the smallest token set whose probabilities sum to p.
Retrieval
Finding relevant documents or records from a knowledge source for a query.
RAG-Fusion
A retrieval method that generates multiple query variants, retrieves results for each, and fuses the rankings.
AGI (Artificial General Intelligence)
A hypothetical AI system that can perform most intellectual tasks at a human level across many domains.

See also

HNSWHybrid SearchANN (Approximate Nearest Neighbor)Cross-EncoderSentencePieceBi-EncoderBPE (Byte Pair Encoding)LLM-as-Judge
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