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软件下载中的Zipf定律

发表时间:2009-02-15  浏览量:1750  下载量:902
全部作者: 张义丰,张栋
作者单位: 河海大学海洋学院
摘 要: 在语言学及其他众多的社会科学和自然科学领域都存在Zpif定律,而如今网络作为获取信息的媒介已经越来越重要,为了提高网络信息应用效率,对软件下载中的一些统计数据进行分析,寻找其一般性的规律是必要的,收集了各门户网站软件下载排行的数据资料,并对数据进行了整理分析,得出其统计规律,发现软件下载频率分布基本符合Zipf定律,同时也分析了参数存在的误差及其产生的原因,并在对数坐标系下对数据采用直线拟合得到软件下载频率分布中Zipf指数一般在0.6~1.3范围之间, 软件下载中大小周期排名分布均满足Zipf定律。
关 键 词: 应用物理学;网络信息;下载频率分布;Zipf定律
Title: Zipf’s Law in software download on World Wide Web
Author: ZHANG Yifeng, ZHANG Dong
Organization: College of Ocean, Hohai University
Abstract: The Zipf’s Law has been studied in philology and some other social and physical science fields. And now it’s important to get useful information from the network. To increase the efficiency of the network information using, it’s necessary to analyze the statistical data of the software download and find its general law. In this paper, the data of the software download ranking of some software website was collected and analyzed. It was discovered that the software download frequency distribution is tally with Zipf’s Law. At the same time, the error of the parameter was obtained and the reason of its producing was analyzed. It was discovered that the Zipf’s exponent of software download frequency distribution always moves in 0.6 to 1.3 generally. The distributions of the software download with various periods agree the Zipf’s Law.
Key words: applied physics; information on internet; download frequency distribution; Zipf’s Law
发表期数: 2009年2月第3期
引用格式: 张义丰,张栋. 软件下载中的Zipf定律[J]. 中国科技论文在线精品论文,2009,2(3):268-271.
 
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