基于LDA模型的国家间知识流动分析  

International Knowledge Flow Analysis Based on LDA Model

作　　者：宋凯[1] 李秀霞[1] 赵思喆 史盛楠[1] 高丹[1] 

机构地区：[1]曲阜师范大学传媒学院,日照276826

出　　处：《情报杂志》2017年第6期55-60,共6页Journal of Intelligence

基　　金：国家社会科学基金项目"文献内容分析与引文分析融合的知识挖掘与发现研究"(编号:16BTQ074)阶段性研究成果之一

摘　　要：[目的/意义]知识流动能推动一个国家的知识创新,通过中国与其他国家间的知识流动模式与流动过程中主题演变的研究,对深入理解国家间的知识流动过程具有重要意义。[方法/过程]将国家间知识转移和知识转化的过程作为国家间知识流动的完整过程,以Web of Science为数据来源,依据其学科类别划分标准,以Information Science&Library Science(以下简称为ISLS)为例,利用LDA模型进行主题提取,分析中国对其他国家的知识转移和知识转化,以及知识转移和知识转化后的主题分布。[结果/结论]中国对其他国家的知识转移主要集中在7个主题;对美国的知识转移主要集中在5个主题;对韩国的知识转移主要集中在4个主题;美国和韩国的知识转化分别集中在3个主题,美国的研究主题更侧重个人隐私保护、文献计量、知识共享与企业创新,而韩国的研究主题更侧重信息鸿沟、网络计量、情报技术融合与创新。[ Purpose/Significance] Knowledge flow can promote the knowledge innovation of a country. It is very important to understand the knowledge flow among countries through the study of knowledge flow patterns and the topics evolution among China and other countries. [ Method/Process] The process of knowledge transfer and conversion is regarded as the complete process of knowledge flow a- mong different countries. Web of Science is used as the data source. According to its classification standard, choosing the Information Sci- ence ＆ Library Science as an example, using the LDA model to extract the subject, knowledge transfer and knowledge conversion of China to other countries, and the distribution of topics after knowledge transfer and knowledge conversion are analyzed. [ Result/Conclusion ] The knowledge transfer from China to other countries mainly concentrates in 7 topics ; the knowledge transfer to the US mainly concentrates in 5 topics; and the knowledge transfer to South Korea mainly concentrates in 4 topics. The knowledge conversion in the US and South Korea focuses on 3 topics respectively： the US research topics focus more on personal privacy protection, bibliometrics, knowledge sharing and business innovation, and South Korea research topics focus more on information gap, network measurement, information technology integration and innovation.

关 键 词：知识转移 知识转化 知识流动 LDA模型 主题演变 

分 类 号：G350[文化科学—情报学]