Retriever
Definition
A retriever selects suitable candidates from a data set.
A component that selects relevant candidates from a data set for a query.
Simply explained
The first search stage collects content that might match the query.
Why it matters in practice
The term improves reliable access to data and knowledge as well as their usable linkage in digital systems.
Example from business
A hybrid retriever combines BM25 and vector search for internal documents.
Limits and pitfalls
- Avoid confusing retriever with generator or reranker and do not measure recall, latency, and permissions together.
Origin & history
Retrievers originate from information retrieval and today form the first stage of many search, recommendation, and RAG systems.
Use in mid-sized companies
- Possible application: A hybrid retriever combines BM25 and vector search for internal documents.
Frequently asked questions
What does retrieval component (retriever) mean?
A component that selects relevant candidates from a data set for a query. What mistakes should be avoided? Avoid confusing retriever with generator or reranker and do not measure recall, latency, and permissions together.
Sources
Source checked on 10.10.2026. Editorial application examples are hypothetical; no evidence of real customer results.
Editorially reviewed on: