基于扩展关键词指标分析的学术虚拟社区知识交流效率研究  

Evaluation of the Knowledge Exchange Efficiency in Academic Virtual Community Based on Expanded Keyword Metrics Analysis

作　　者：李树青[1] 严梓豪 张志旺 马丹丹 LI Shuqing;YAN Zihao;ZHANG Zhiwang;MA Dandan(Nanjing University of Finance and Economics,Nanjing 210023)

机构地区：[1]南京财经大学信息工程学院,南京210023

出　　处：《科技情报研究》2022年第4期12-25,共14页Scientific Information Research

基　　金：国家社会科学基金项目“学术虚拟社区知识交流效率研究”(编号:17BTQ028)。

摘　　要：[目的/意义]随着互联网用户的交互行为日益增多,学术虚拟社区的知识交流对于丰富学者专业知识、优化学术交流生态起到重要的辅助作用。如何有效测度学术虚拟社区知识交流效率,对发展和改进现有学术虚拟社区意义明显。[方法/过程]文章利用推荐模型提出一种有效关键词扩展方案,并利用学术文献关键词作为投入指标,以浏览量、回帖数、推荐数作为产出指标,结合熵权法、版块比较等多种分析手段,对关键词投入指标的有效性和不同学术虚拟社区版块的知识交流效率,进行完整的分析研究和比较说明。[结果/结论]文章以科学网博文为实证,研究发现,扩展学术文献关键词能够较好地体现出科学网博文的知识交流;科学网不同版块的知识交流效率存在着明显差异;有些版块内部博文之间的知识交流效率也存在着较大差异。这些结果可以为知识交流效率提升、版块优化和用户留存等学术虚拟社区的改进和发展提出策略支持。[Purpose/significance]With the increasing interaction of Internet users,knowledge exchange in acade mic virtual communities plays an important auxiliary role in enriching scholars'professional knowledge and optimizing the academic exchange ecology.Therefore,how to effectively measure the efficiency of knowledge exchange in academic virtual communities is of obvious significance to the development and improvement of existing academic virtual communities.[Method/process]This paper proposes an effective keyword expansion scheme using recommendation model.The measurement method proposed in this paper uses academic literature keywords as input indicators,views,replies and recommendations as output indicators,and combined with various analysis means including entropy weight method and academic virtual community section comparison,makes a complete analysis,research and comparison on the effectiveness of keyword input indicators and the knowledge exchange efficiency of different academic virtual community sections.[Result/conclusion]Expanded academic literature keywords can better reflect the knowledge exchange of academic virtual community.Meanwhile,the efficiency of knowledge exchange in different sections of academic virtual community is still different,and there are great differences in the efficiency of knowledge exchange between community posts in some sections.These results can provide strategic support for the development and improvement of academic virtual community,such as the improvement of knowledge exchange efficiency,forum optimization and user retention.

关 键 词：学术虚拟社区 关键词 关键词扩展 社区版块 知识交流 投入产出 效率研究 

分 类 号：G202[文化科学—传播学]