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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.
Systematic or Enumerative This kind of bibliography deals with the enumeration and classification of books. It also takes care of the assembling of bibliographical entries int
Institutional Resource In many cases information not published in regular publications can be sought directly from research organizations in public, private or government se
the prinicple goal of jesuit educational system was to?
NOTES AREA The Notes area gives any additional useful information about the document. Observe the words additional useful information. The information given in the note area
Objectives The objectives of centralised cataloguing are to: avoid duplication of work; achieve uniform and standard cataloguing practices; minimize the cost of
Anti-Social Personality disorder
CATALOGUING AND CLASSIFICATION Cataloguing and classification are two interrelated processes that are performed in a library. The basic purpose of these two operations is to
POST-COORDINATE INDEXING MODEL All the pre-coordinate indexing models discussed so far are of unidimensional in nature based on the order of significance. The significance or
Pre-Coordinate Indexing Systems Pre-coordinate indexing systems are conventional systems mostly found in printed indexes. In this type of system, a document is represented in
Bibliographical Control If for any distinctive body of printed literature of subject, or a physical or literary form - we can easily find complete and accurate information on
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