摘要
科研人员的主题偏好分析有助于洞悉科学知识发展的动力机制,引导学科领域科技创新方向。本文采用LDA主题模型进行主题划分,对不同类型科研人员主要研究方向的精专程度和主题迁移进行分析。研究结果表明,高发文科研人员的研究主题相对集中,且在主要研究方向上的精专程度更高,高被引科研人员研究主题的迁移性更突出。
The topic preference analysis of scientific researchers helps to understand the dynamic mechanism of the development of scientific knowledge and guide the direction of scientific and technological innovation in domain.This article uses the LDA topic model for topic division,and analyzes the degree of concentration and topic transfer of the main research directions of different type scientific researchers.The research results show that the research topics of high output researchers are relatively centralized,and the degree of concentration in the main research direction is higher,and the transitivity of the research topics of highly cited researchers is more prominent.
作者
陈立雪
郭思月
滕广青
庹锐
CHEN LiXue;GUO SiYue;TENG GuangQing;TUO Rui(School of Information Science and Technology,Northeast Normal University,Changchun 130117,China)
出处
《数字图书馆论坛》
CSSCI
2019年第12期9-17,共9页
Digital Library Forum
基金
国家社会科学基金项目“基于复合数据的科技信息跨维度挖掘与推荐研究”（编号：19BTQ063）资助
关键词
高发文
高被引
LDA
主题强度
研究方向
主题迁移
High Output
High Cited
LDA
Topic Strength
Research Orientation
Topic Transfer
