网络环境下布拉德福定律的有效性研究  

Study on the Validity of Bradford Law in the Networked Environment

作　　者：杨磊[1] 

机构地区：[1]曲阜师范大学,山东日照276826

出　　处：《科技情报开发与经济》2015年第24期115-118,135,共5页Sci-Tech Information Development & Economy

摘　　要：布拉德福定律是经典信息计量学的著名定律。为了检验这一古老定律在网络技术环境下是否依然有学术价值,对网络环境下布拉德福定律的有效性进行了实证研究。以网络环境下信息资源被引频次为指标,应用区域分析法、图像分析法探寻了信息资源的分布规律,并建立了两种多项式回归模型进行最佳数据拟合,得到的网络环境下学术论文被引频次分布曲线具有布拉德福定律特征,从而证实了布拉德福定律在网络环境下的有效性成立。Bradford Law is a famous law in classic has the academic value under the environment of the Bradford Law in the network environment, and taking information metrology. In order to test whether this ancient law still network technology environment,this paper studies the validity of the citation frequency of the information resources in the network environment as the evaluating indicator,and by using the area analysis method and image analysis method, explores the distribution regularities of the information resources ,and establishes two polynomial regression models to make the best data fitting, finding that the distribution curve of academic papers＇ citation frequency has the characteristics of Bradford Law, and thus confirming that the validity of Bradford Law is established in the network environment.

关 键 词：布拉德福定律 有效性研究 网络信息计量学 

分 类 号：G250.252[文化科学—图书馆学]