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New Technology of Library and Information Service  1995, Vol. 11 Issue (6): 24-28    DOI: 10.11925/infotech.1003-3513.1995.06.05
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Tang Zhaokui
(Institute of Sci.and Tech Informaton of China)
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The paper describes mathematical expression of documentation Languages, discusses mainly mathematical expression of terms Concrete content includes:(1)recall rate,precision rate,omission factor,noise factor,rational reject rate and discrete factor ,(2)Boolean retrieval;(3)related evaluation;(4 )bibliographic information structure,(5)index table structure;(6)coordination indexing;(7)weighted function etc. It has research importance and practical valueto the guantitative analysis for the documentation and information as well as communication and transmission of information, especially to the information retrieval services.

Received: 13 March 1995      Published: 25 December 1995
Corresponding Authors: Tang Zhaokui   
About author:: Tang Zhaokui

Cite this article:

Tang Zhaokui. MATHEMATICAL EXPRESSION OF DOCUMENTA-TION LANGUAGES. New Technology of Library and Information Service, 1995, 11(6): 24-28.

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