Document retrieval; Text retrieval
Information retrieval (IR) deals with the construction of automatic systems that allow users to inquire about textual data of any kind through natural language queries. The retrieved information from IR systems may vary from a ranked list of relevant textual items of any kind, such as full documents or their excerpts, or can be distilled into more elaborated forms, such as document summaries or answers to questions. Information retrieval is an empirical science that studies representation, storage, and access to information and covers a large number of interdisciplinary topics of theoretical computer science including information theory, machine learning, coding theory, probability theory, programming theory, computational semantics, natural language processing, logics, and algebra. From a practical perspective, research on IR includes data representation; storage and retrieval, such as indexing, data encoding, and text...
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