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.
收稿日期: 1995-03-13
出版日期: 1995-12-25
通讯作者:
汤兆魁
作者简介: 汤兆魁
引用本文:
汤兆魁. 论文献语言的数学表达式[J]. 现代图书情报技术, 1995, 11(6): 24-28.
Tang Zhaokui. MATHEMATICAL EXPRESSION OF DOCUMENTA-TION LANGUAGES. New Technology of Library and Information Service, 1995, 11(6): 24-28.
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