Case & CodeA FIELD GUIDE TO AI
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Intermediate

Hybrid search

In plain words

Using keyword search and meaning search together.

The fuller definition

Hybrid search combines retrieval approaches, commonly lexical and vector search, to improve coverage across exact wording and related meaning.

Similarity as a map: a deliberately invented two-dimensional example
delivery postponedshipment delayedweather forecast

Related phrasing can be nearby in an embedding space. Real embeddings have many dimensions, and the model determines similarity. Nearby does not mean legally relevant or factually correct.

A concrete example

A system combines hits for a contract ID with passages semantically related to cancellation.

The distinction that matters

Combining methods does not guarantee complete recall; ranking and filtering still need evaluation.

Related terms

Where it is taught

How document-grounded AI answers work

Source and further reading

Sentence Transformers · Semantic search

The definition and example are written for this library. The link gives background, official documentation or legal authority as labelled. Legal scope depends on the jurisdiction and current text; product features depend on release and settings.

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