Information retrieval

Information retrieval (IR) is the art and science of searching for information in documents, searching for documents themselves, searching for metadata which describe documents, or searching within databases, whether relational stand alone databases or hypertext networked databases such as the Internet or intranets, for text, sound, images or data. There is a common confusion, however, between data retrieval, document retrieval, information retrieval, and text retrieval, and each of these have their own bodies of literature, theory, praxis and technologies.

Major information retrieval research groups

• Glasgow Information Retrieval Group
• Center for Intelligent Information Retrieval
• IIT Information Retrieval Lab
• CIR Centre for Information Retrieval