Vocabulary

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A practical dictionary of 512 AI, machine learning, mathematics, and programming terms from HerbDev’s AI Vocabulary app. Start with a definition, explore an example, then follow the concepts behind it.

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Query Expansion

RAG / Retrieval · Level 2 of 5

Query Expansion

Adding or generating query terms or variants to broaden retrieval.

Expansion can improve coverage but also introduce irrelevant matches.

Example

A search for heart attack also searches myocardial infarction.

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Audio transcript

Query Expansion. Adding or generating query terms or variants to broaden retrieval. Expansion can improve coverage but also introduce irrelevant matches. For example: A search for heart attack also searches myocardial infarction.

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