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information retrieval
Sign in to saveAlso known as IR, information storage and retrieval, info retrieval
activity of obtaining information resources relevant to an information need from a collection of information resources
Research
259,771 papersvia PubMed
Wikidata facts
Show 4 more facts
- short name
- IR
- P13411
- Tonndorf
- Stack Exchange tag
- stackoverflow.com/tags/information-retrieval
- Commons category
- Information retrieval
Sources (9)
via Wikidata · CC0
~27 min read
Article
Information retrieval (IR) in computing and information science is the task of identifying and retrieving information system resources that are relevant to an information need. The information need can be specified in the form of a search query. In the case of document retrieval, queries can be based on full-text or other content-based indexing. Information retrieval is the science of searching for information in a document, searching for documents themselves, and also searching for the metadata that describes data, and for databases of texts, images, or sounds. Cross-modal retrieval implies retrieval across modalities.
Automated information retrieval systems are used to reduce what has been called information overload. An IR system is a software system that provides access to books, journals, and other documents, as well as storing and managing those documents. Web search engines are the most visible IR applications.