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In information retrieval, a thesaurus can be used as a form of controlled vocabulary to aid in the indexing of appropriate metadata for information bearing entities. A thesaurus helps with expressing the manifestations of a concept in a prescribed way, to aid in improving precision and recall. This means that the semantic conceptual expressions ...
Information overload (also known as infobesity, [1] [2] infoxication, [3] or information anxiety [4]) is the difficulty in understanding an issue and effectively making decisions when one has too much information (TMI) about that issue, [5] and is generally associated with the excessive quantity of daily information. [6]
A thesaurus (pl.: thesauri or thesauruses), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms, sometimes simply as lists of synonyms and antonyms.
Spreading false information can also seriously impede the effective and efficient use of the information available on social media. [124] An emerging trend in the online information environment is "a shift away from public discourse to private, more ephemeral, messaging ", which is a challenge to counter misinformation.
A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [2] For example, in the English language, the words begin, start, commence, and initiate are all synonyms of one another: they are synonymous. The standard test for synonymy is substitution: one form can be ...
Information can be defined exactly by set theory: "Information is a selection from the domain of information". The "domain of information" is a set that the sender and receiver of information must know before exchanging information. Digital information, for example, consists of building blocks that are all number sequences.
The Library of Congress Subject Headings (LCSH) comprise a thesaurus (in the information science sense, a controlled vocabulary) of subject headings, maintained by the United States Library of Congress, for use in bibliographic records.
The infosphere is the whole system of services and documents, encoded in any semiotic and physical media, whose contents include any sort of data, information and knowledge...with no limitations either in size, typology, or logical structure. Hence it ranges from alphanumeric texts (i.e., texts, including letters, numbers, and diacritic symbols ...