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A comparison of the relevance of key‐word‐in‐context versus descriptor indexing terms

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  • Kenyon C. Rosenberg
  • Charles L. M. Blocher

Abstract

This report describes a technique for measuring the relevance of indexing terms per se to the subject of their source document. It is then postulated that the average relevance value of indexing terms and their distribution provides a basis for the evaluation of the relative merits of two indexing systems; for example, System A is better than System B if the average relevance value of its indexing terms is higher than that of System B. To demonstrate the method, 100 randomly selected DDC (Defense Documentation Center) technical documents (representative of the literature) previously indexed by the methods of KWIC (i.e., Key Word in Context) and of DII (i.e., Descriptor Indexing) are used. The relevance values of the index terms derived by each method are compared, analyzed, and reported.

Suggested Citation

  • Kenyon C. Rosenberg & Charles L. M. Blocher, 1968. "A comparison of the relevance of key‐word‐in‐context versus descriptor indexing terms," American Documentation, Wiley Blackwell, vol. 19(1), pages 27-29, January.
    • Handle: RePEc:bla:amedoc:v:19:y:1968:i:1:p:27-29
    DOI: 10.1002/asi.5090190107
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