| 期刊文献分布特征的分析 |
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| 引用本文： | 何荣利,何萌.期刊文献分布特征的分析[J].图书情报工作,2005,49(2):109-111. |
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| 作者姓名： | 何荣利 何萌 |
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| 作者单位： | 沈阳农业大学图书馆 大连理工大学电子信息工程学院 沈阳 110161 大连 116023 |
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| 摘 要： | 以1999-2003年生物技术学科期刊文献分布曲线为依据,利用知识密度梯度graduR(n)的概念,对知识场中文献分布特征进行分析。结果表明,在任何一个学科的知识场中,集中区文献分布呈间断性变化,离散区文献分布呈连续性变化,从而构成期刊文献分布的基本特征。基于此,指出期刊文献分布特征研究是对文献分布规律的进一步描述。
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| 关 键 词： | 期刊文献分布 知识场 知识密度梯度 间断性 连续性 |
| 收稿时间： | 2004-05-17 |
Analysis of the Distribution Features of Periodical Documents |
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| He Rongli Library of Shenyang Agricultural Univeisity,Shenyang He Meng EE School of Dalian University of Technology,Dalian.Analysis of the Distribution Features of Periodical Documents[J].Library and Information Service,2005,49(2):109-111. |
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| Authors: | He Rongli Library of Shenyang Agricultural Univeisity Shenyang He Meng EE School of Dalian University of Technology Dalian |
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| Institution: | 1. Library of Shenyang Agricultural Univeisity, Shenyang 110161;
2. EE School of Dalian University of Technology, Dalian 116023 |
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| Abstract: | According to the documents on biotechnology, the paper analyzes the distribution features of the periodical documents in the knowledge field in terms of the knowledge density gradient graduR(n). The result reveals that in the knowledge field of any subjects, the distribution of documents in the concentrated region emerges in a discontinuous way, while that in the dispersed region appear in a continuous way. |
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| Keywords: | distribution of periodical documents knowledge field knowledge density gradient discontinuity continuity |
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