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Definition
There are a number of definitions of 'thesaurus' provided by different experts and organisations. The most comprehensive one has been provided by the International Standards Organisation (ISO) as the basis of structure and functions of a thesaurus. In terms of functions, it states "a thesaurus is a terminological control device used in translating from the natural language of documents, indexers or users into a more constrained 'system language' (documentation language, information language)". In terms of structure, the Standard says, "a thesaurus is a controlled and dynamic vocabulary of semantically and generically related terms which covers a specific domain of knowledge".
In short, a thesaurus may be defined as a compilation of descriptors for use in an information retrieval system arranged in an alphabetical order and manifesting the various types of relationships existing between the descriptors. An information retrieval thesaurus is a kind of semantic networking of concepts.
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Global Change-Issues and Impacts: This change refers to planetary-scale modifications in the Earth system. The systems comprise the oceans, land, poles, atmosphere, life, the natur
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#question.idenrify how history hás contributed to thé current state of human resource mãnagement. .
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Tracing Tracing is a separate paragraph. This is the last paragraph in the Main Entry of a Dictionary Catalogue., This part traces the additional entries that are provided fo
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