摘要
文章采用z指数实证评价29个城市外宣类政务微博,发现z指数不适合进行微博传播力评价。为提升z指数对微博传播力评价的适用性,对z指数进行了改进,并将其命名为z_(new)指数。具体改进方法为在引入发文—引文分布曲线的基础上,通过将高被转发区和低被转发区的篇被转发次数分开计算来修正篇均被转发次数,并将零被转发与被转发比替代被引集中度。通过描述性统计、相关性分析等方法,验证了z_(new)指数的评价效果。研究发现,z_(new)指数是对z指数应用于微博传播力评价的有效修正,相对于h指数、p指数具有更高的区分性、灵敏度和有效性。
Based on the empirical evaluation of 29 external publicity government micro-blogs through z index,the study finds that the z index is not suitable for evaluating the propagation power of the micro-blog.In order to improve the applicability of the z-index to the evaluation of Weibo's dissemination power,the article has improved the z index and named it the z_(new) index.The improvement method is based on the introduction of the post-citation curve,to calculate the number of reposts of articles in the high-reposted area and the low-reposted area separately to correct the number of reposts per article,and replace the citation concentration with the ratio of zero reposted and reposted.This paper verifies the evaluation effect of z_(new) index through descriptive statistics and correlation analysis.The results show that the z_(new) i ndex is an effective correction for the z index in the evaluation of micro-blog propagation,and it has higher discrimination,sensitivity and effectiveness than the h index and p index.
出处
《图书馆研究与工作》
2022年第8期34-40,共7页
Library Science Research & Work
基金
全国地方党校(行政学院)重点调研课题“全媒体时代政务新媒体主流思想传播效能研究”(项目编号:2020dfdxzddykt116)的阶段性研究成果。
