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Indexing languages (2)
 

Indexing languages (2)

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Indexing languages (2) Indexing languages (2) Presentation Transcript

  • INDEXING LANGUAGES
  • Any vocabulary, controlled or uncontrolled used for indexing ,along with the rules of usage.Is much more than a list of index terms that are acceptable to users.
  •  Helps users discriminate between terms and reduces an ambiguity in the language. To assist both indexers and searchers in using and manipulating the system.
  •  Assigned term Derived term
  •  An indexer must assign terms or descriptors on the basis of subjective interpretation of the concepts implied in the documents. The indexer determine the subject matter of the document at hand. Assigned descriptors from a controlled vocabulary, which identifies concepts expressed by the documents author.
  •  All the descriptors are taken from the text itself. Sometimes called natural language or free text indexing.
  •  Is a related group of words or phrases adopted by a particular group of people to be used in an indexing activity. Formal lists of the words in the controlled vocabulary.
  •  Evolutionary vocabulary- consists of raw material supplied by indexers.- Which is edited or planned after the fact. Enumerated vocabulary- Is generated as the result of a special study or inquiry and a consensus of experts who predetermine what the vocabulary should be for an area of knowledge.
  •  Show vertical arrangements of words within classes. Indicate synonymous relationships, near synonymous relationships and related word groups.
  •  Specific language, with words, relationships of words and its own grammatical rules for usage. It is a controlled , collected subset of natural language.
  •  Consistency in indexing and searching. The control of synonyms, although it has many other functions such as related words, more specific words and broader words.