科学信息离散分布规律的研究——从文献单元到内容单元的实证分析(Ⅴ):知识单元离散分布的图形模拟

Study on the Law of Scattering Distribution of Scientific Information ——Demonstration Analysis from Document Level to Content Level (Ⅴ): the Graphical Description of Scattering Distribution of Knowledge Unit

本文系国家自然科学基金项目：“科学信息离散分布的机理与模型研究”的第五部分（ 知识单元离散分布的图形模拟） 。文章以主题词或关键词表征知识单元，运用Ｌｏｇｉｓｔｉｃ 函数模拟关键词或主题词的分布图像，包括词总数、个数和核心词，得到关键词或主题词总数、个数和核心词的离散分布方程。

This is the fifth part of National Natural Science Foundation Project——Research on Mechanism and Model of Scattering Distribution of Scientific Information(The Graphical Description of Scattering Distribution of Knowledge Unit).By using Logistic function and taking theor descriptors as the representatives of knowledge unit,this article studies the graphs of scattering distribution of keywords or descriptors,including total quantities of words,species of words and core words,also provides the scattering distribution function of all of the three ones and tests these functions by using K—S method.