关键词: 聚类分析, Salton矩阵, 粘合度, 战略坐标图

Abstract:

We took CNKI as the data source, extracted the key words from doctoral and master’s papers collected by CNKI during 2006 and 2016, and analysed them. Firstly, we found the high frequency keywords by using EXCEL, and constructed the high frequency keywords matrix and Salton matrix. We then put the Salton matrix to SPSS to do cluster analysis by calculating the adhesiveness value to determine each group's core research topic. Finally, we constructed the strategy coordinate diagram, and analysed the current situation of information science’s hot topics in China for the specified decade. We found that,
among the eight hot topics, the “Competitive Intelligence Analysis”, “Knowledge Management”, “Social Network Analysis” and “Information Service under the Network Environment” are the key research topics and that information science research in this decade is following closely the development of the information age.

Key words: Cluster analysis, Salton matrix, Adhesiveness value, Strategy coordinate diagram