情报学报  2021, Vol. 40 Issue (8): 806-816    DOI: 10.3772/j.issn.1000-0135.2021.08.002
  情报分析方法与技术 本期目录 | 过刊浏览 | 高级检索 |
基于文本挖掘的中美技术差距分析——以空间技术领域为例
郭世杰1,2, 陈芳2, 韩涛1,2, 王学昭1,2, 王燕鹏2, 吕璐成1,2, 董璐2
1.中国科学院大学经济与管理学院图书情报与档案管理系,北京 100049
2.中国科学院文献情报中心,北京 100190
Analysis on Technology Gaps between China and US Based on Text Mining—Taking Space Technology as an Example
Guo Shijie1,2, Chen Fang2, Han Tao1,2, Wang Xuezhao1,2, Wang Yanpeng2, Lyu Lucheng1,2, Dong Lu2
1.Department of Library, Information and Archives Management, School of Economics and Management, University of Chinese Academy of Sciences, Beijing 100049
2.National Science Library, Chinese Academy of Sciences, Beijing 100190