Information retrieval query language
- Information retrieval query language
An information retrieval query language is a query language used to make queries into database, where the semantics of the query are defined not by a precise rendering of a formal syntax, but by an interpretation of the most suitable results of the query.
Of importance in IR query languages is weighting and ranking, "relevance-orientation", semantic relativism and logic-based probabilism.
An example of an IR query language is Common Query Language (CQL), a formal language for representing queries to Information Retrieval systems such as web indexes, bibliographic catalogs and museum collection information.
ee also
*Controlled vocabulary
*Free text searching
*Information retrieval
*SQL
*Text retrieval
*Database query language
External links
* [http://zing.z3950.org/cql/ CQL: Common Query Language]
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