Glossary

Query Expansion

Query Expansion adds additional terms or meanings to a search query in a controlled manner, so that relevant products are not missed by word choice alone.

Possible expansion

Synonyms, brand variants, category concepts and semantically related terms can be part of expansion.

Purpose

Help customers when their language doesn’t exactly match product titles or catalog fields.

Risk

Too wide expansion can add irrelevant products and dilute strong exact matches.

Management

Use search data and regression tests to add expansion-oriented and reassess later.