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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.
THE INDEXING PROCESS Subject indexing is a crucial operation in the creation and maintenance of index files as retrieval of information depends to a large extent on the qua
Commercial Cataloguing When centralised processing like preparation and sale of catalogue entries on-cards is undertaken by an agency as commerical proposition we may call it
Free Indexing Language It is the nature of free indexing that any word or term-that suits the subject may be assigned as a subject heading in catalogue or as an indexing term
Economic and Resource Geography- We study in economic geography the locational, behavioral and organizational principles and processes related along with the spatial allocation of
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Mass Media Mass media here means communication through a number of physical transmission modes such as print, visual, audio, audio-visual and electronic forms to a general mas
I need some help with my paper. I cannot find the RIGHT WORDS!
Make no mistake: the bene?ts would be enormous if the usa (or anyone else, for that matter) were to succeed in its declared ambition of achieving the inter-nal paci?cation of the w
ROLE OF COMPUTERS As you are aware, the introduction of computers in the libraries has brought about sea-change in the various services provided by modern libraries. The use
SUBJECT AUTHORITY FILE Meaning Most libraries maintain a subject authority file consisting of subject authority records in order to ensure uniformity and consistency
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