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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.
Indexing and Abstracting Periodicals/Sources The indexing and abstracting sources of information are referred to as the secondary sources of information as they provide access
Special features Some general and subject dictionaries include some encyclopaedic features in dictionary. They add to the value of a dictionary as it becomes a convenient rea
facts about civil rights
I''m having trouble filling out this worksheet. I just do not understand how to do this. I''ve let the Professor know by email getting no help from her.
Homeostasis- It is the process by that the body remains in a state of stable physiological balance. The body requires maintaining homeostasis in order to stay living. If you receiv
DATA ELEMENTS IN A DICTIONARY CATALOGUE We shall discuss the parts of main entry in a dictionary catalogue according to ISBD and AACR-2R with their purpose, and they are iden
Scope and Purpose Editors usually state the scope and purpose of the encyclopaedia in the preface and introduction. After proper scanning, the buyers must check a few items in
Special Subject Encyclopaedia It is rather common for the reference librarian to receive queries regarding specific subjects. The answer of such queries can be searched from t
General Encyclopaedias The popular general encyclopedias are most impressive by their size and number of volumes. The famous adult encyclopaedia are remembered as the ABC's
Thesauri and Subject Headings List Both thesauri and subject headings lists are vocabulary control devices, but they are used in different situations. The essential character
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