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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.
Mass Media As we are all aware, the various communication media for the masses; that is, broadcasting and telecasting or a combination of the two are more effective than any p
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
How to Use a Thesaurus The final process of indexing involves translating the relevant subject concepts of the document into the indexing language or the descriptor language
INDEXING SYSTEMS The preparation of a series of entries for inclusion in a subject catalogue or in a printed index is known as indexing. An entry is a basic unit of a subj
Directories In this section, we will introduce you to directories. A directory is one more category of ready reference tool possessing rich information needed by the library
Three Levels of Description The three levels of description are detailed thus: First Level of Description: For the first level of description the following elements are
Authority The authority of a dictionary can be determined by the reputation of its compiler(s)/editor(s), associates and publishers. Generally, a linguist et a philologist he
I need some help with the book I am reading.
FUNCTIONS In the last two decades there have been tremendous developments in production of documents. The volume of published literature has enormously increased. Bibliograp
ENTRY FORMAT A library catalogue card is of a standard size 12.5cm * 7.5cm.It may be a white blank card or a card with lines printed on it. See the illustrations given below
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