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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.
Audio-Visual Media Sometimes information cannot be conveyed by words alone. Librarian:, hive extensively made use of the audio and visual form the new technology to their a
BODY OF THE ENTRY Body of the Main Entry consists of several parts or units. This constitutes the first paragraph of the Main Entry. There is a sequence prescribed for the un
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Cataloguing-in-Publication The cataloguing-in-Source given up by the LC in 1959 was revived in July 1971. The entries were prepared from galley proofs and data returned to pu
explain the importance of listening Oral Communication
Statistical Handbooks Statistical handbooks cover information regarding various aspects in numerical form. They are also produced by the Governments of different countries. T
The social arrangements of the Old South were also associated with the prevalent code of ‘honour' (Wyatt-Brown 1984), and questions of honour were commonly settled by the du
Parts of a Main Entry In that entry information is given in units as separate paragraphs. We observe that the first and second indention in fact help us write the paragraphs
Library Records A number of records are created in a library for its collections to serve different purposes. Some of these records are accession register, shelf list, period
Comprehensive Services Centralised agencies in countries such as the former USSR, France, Japan and China have been attempting comprehensive I & A services to cover all types
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