| 论文献语言的数学表达式 |
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| 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. |
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| 作者姓名： | 汤兆魁 |
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| 作者单位： | (中国科学技术信息研究所 北京 100038) |
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| 摘 要： | 本文叙述了文献语言的数学表达式, 重点讨论了叙词的数学表达式, 具体内容包括; (1) 检全率、检准率、误检率、漏检率、离散率和正确拒绝率; (2) 布尔检索; (3) 相关评论; (4) 书目情报结构; (5) 索引表结构; (6) 组配标引; (7) 权重功能等。它对文献情报的定量分析和情报信息的交流和传递, 尤其对信息检索服务既有研究意义, 又有实用价值。
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| 关 键 词： | 情报检索语言 数学表达式 主题检索 |
| 收稿时间： | 1995-03-13 |
MATHEMATICAL EXPRESSION OF DOCUMENTA-TION LANGUAGES |
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| Tang Zhaokui.MATHEMATICAL EXPRESSION OF DOCUMENTA-TION LANGUAGES[J].New Technology of Library and Information Service,1995,11(6):24-28. |
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| Authors: | Tang Zhaokui |
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| Institution: | (Institute of Sci.and Tech Informaton of China) |
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| Abstract: | 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. |
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