language-icon Old Web
English
Sign In

Query expansion

Query expansion (QE) is the process of reformulating a given query to improve retrieval performance in information retrieval operations, particularly in the context of query understanding.In the context of search engines, query expansion involves evaluating a user's input (what words were typed into the search query area, and sometimes other types of data) and expanding the search query to match additional documents. Query expansion involves techniques such as: Query expansion (QE) is the process of reformulating a given query to improve retrieval performance in information retrieval operations, particularly in the context of query understanding.In the context of search engines, query expansion involves evaluating a user's input (what words were typed into the search query area, and sometimes other types of data) and expanding the search query to match additional documents. Query expansion involves techniques such as: Query expansion is a methodology studied in the field of computer science, particularly within the realm of natural language processing and information retrieval.

[ "Information retrieval", "Database", "Data mining", "World Wide Web", "Cross-language information retrieval", "Query likelihood model", "TREC Genomics", "query formulation", "Vocabulary mismatch" ]
Parent Topic
Child Topic
    No Parent Topic