Purpose:We attempt to find out whether OA or TA really affects the dissemination of scientific discoveries.Design/methodology/approach:We design the indicators,hot-degree,and R-index to indicate a topic OA or TA advan...Purpose:We attempt to find out whether OA or TA really affects the dissemination of scientific discoveries.Design/methodology/approach:We design the indicators,hot-degree,and R-index to indicate a topic OA or TA advantages.First,according to the OA classification of the Web of Science(WoS),we collect data from the WoS by downloading OA and TA articles,letters,and reviews published in Nature and Science during 2010–2019.These papers are divided into three broad disciplines,namely biomedicine,physics,and others.Then,taking a discipline in a journal and using the classical Latent Dirichlet Allocation(LDA)to cluster 100 topics of OA and TA papers respectively,we apply the Pearson correlation coefficient to match the topics of OA and TA,and calculate the hot-degree and R-index of every OA-TA topic pair.Finally,characteristics of the discipline can be presented.In qualitative comparison,we choose some high-quality papers which belong to Nature remarkable papers or Science breakthroughs,and analyze the relations between OA/TA and citation numbers.Findings:The result shows that OA hot-degree in biomedicine is significantly greater than that of TA,but significantly less than that of TA in physics.Based on the R-index,it is found that OA advantages exist in biomedicine and TA advantages do in physics.Therefore,the dissemination of average scientific discoveries in all fields is not necessarily affected by OA or TA.However,OA promotes the spread of important scientific discoveries in high-quality papers.Research limitations:We lost some citations by ignoring other open sources such as arXiv and bioArxiv.Another limitation came from that Nature employs some strong measures for access-promoting subscription-based articles,on which the boundary between OA and TA became fuzzy.Practical implications:It is useful to select hot topics in a set of publications by the hotdegree index.The finding comprehensively reflects the differences of OA and TA in different disciplines,which is a useful reference when researchers choose the publishing way as OA or TA.Originality/value:We propose a new method,including two indicators,to explore and measure OA or TA advantages.展开更多
Starting from the perspective of the student users’ knowledge needs in Chinese universities,based on questionnaire survey data,combining conventional statistics and formal concept analysis method,a comprehensive anal...Starting from the perspective of the student users’ knowledge needs in Chinese universities,based on questionnaire survey data,combining conventional statistics and formal concept analysis method,a comprehensive analysis of knowledge needs of university students about open access is executed.The results show that the retrieval efficiency of open access is the core focus of the common concern of university student users;a few university students still prefer the traditional methods during the process of obtaining knowledge;the awareness of economic cost is not obvious among the university student users;the academic level and research level are primary causes of the differences in knowledge needs in university student users.By disclosing characters of knowledge needs of university student users about open access,the paper provides reference for theoretical study and practical application of open access in Chinese universities with the view of users’ knowledge needs.展开更多
以同被期刊引用报告(Journal Citation Reports)和Scimago期刊排名(Scimago Journal Rank)收录的,来源于开放存取期刊目录(Directory of Open Access Journals)的医学开放存取期刊为数据源,构建84种医学开放存取期刊引文矩阵,利用社会...以同被期刊引用报告(Journal Citation Reports)和Scimago期刊排名(Scimago Journal Rank)收录的,来源于开放存取期刊目录(Directory of Open Access Journals)的医学开放存取期刊为数据源,构建84种医学开放存取期刊引文矩阵,利用社会网络分析法中的核心—边缘结构理论对84种医学开放存取期刊进行分析。使用Ucinet软件计算各期刊的核心度,并构建其核心—边缘结构模型以划分出核心、半核心和非核心期刊。研究结果表明,核心度不可单独用于评价开放存取期刊,但是,核心—边缘结构分析对开放存取核心期刊选取具有一定的参考价值。展开更多
文摘Purpose:We attempt to find out whether OA or TA really affects the dissemination of scientific discoveries.Design/methodology/approach:We design the indicators,hot-degree,and R-index to indicate a topic OA or TA advantages.First,according to the OA classification of the Web of Science(WoS),we collect data from the WoS by downloading OA and TA articles,letters,and reviews published in Nature and Science during 2010–2019.These papers are divided into three broad disciplines,namely biomedicine,physics,and others.Then,taking a discipline in a journal and using the classical Latent Dirichlet Allocation(LDA)to cluster 100 topics of OA and TA papers respectively,we apply the Pearson correlation coefficient to match the topics of OA and TA,and calculate the hot-degree and R-index of every OA-TA topic pair.Finally,characteristics of the discipline can be presented.In qualitative comparison,we choose some high-quality papers which belong to Nature remarkable papers or Science breakthroughs,and analyze the relations between OA/TA and citation numbers.Findings:The result shows that OA hot-degree in biomedicine is significantly greater than that of TA,but significantly less than that of TA in physics.Based on the R-index,it is found that OA advantages exist in biomedicine and TA advantages do in physics.Therefore,the dissemination of average scientific discoveries in all fields is not necessarily affected by OA or TA.However,OA promotes the spread of important scientific discoveries in high-quality papers.Research limitations:We lost some citations by ignoring other open sources such as arXiv and bioArxiv.Another limitation came from that Nature employs some strong measures for access-promoting subscription-based articles,on which the boundary between OA and TA became fuzzy.Practical implications:It is useful to select hot topics in a set of publications by the hotdegree index.The finding comprehensively reflects the differences of OA and TA in different disciplines,which is a useful reference when researchers choose the publishing way as OA or TA.Originality/value:We propose a new method,including two indicators,to explore and measure OA or TA advantages.
基金the research achievements of "Research on Open Access Resource and Knowledge Service System Establishment of University Libraries Based on Concept Lattice"(Serial No.10YJC870035)from the Youth Fund Project of Humanistic and Social Science Research"Research on Online Integrated Service Portal of Open Access Resource Based on Domain Ontology"from the special scientific research fund project of the higher education doctorial subjects of the Ministry of Education"Project 985"of Jilin University
文摘Starting from the perspective of the student users’ knowledge needs in Chinese universities,based on questionnaire survey data,combining conventional statistics and formal concept analysis method,a comprehensive analysis of knowledge needs of university students about open access is executed.The results show that the retrieval efficiency of open access is the core focus of the common concern of university student users;a few university students still prefer the traditional methods during the process of obtaining knowledge;the awareness of economic cost is not obvious among the university student users;the academic level and research level are primary causes of the differences in knowledge needs in university student users.By disclosing characters of knowledge needs of university student users about open access,the paper provides reference for theoretical study and practical application of open access in Chinese universities with the view of users’ knowledge needs.
文摘以同被期刊引用报告(Journal Citation Reports)和Scimago期刊排名(Scimago Journal Rank)收录的,来源于开放存取期刊目录(Directory of Open Access Journals)的医学开放存取期刊为数据源,构建84种医学开放存取期刊引文矩阵,利用社会网络分析法中的核心—边缘结构理论对84种医学开放存取期刊进行分析。使用Ucinet软件计算各期刊的核心度,并构建其核心—边缘结构模型以划分出核心、半核心和非核心期刊。研究结果表明,核心度不可单独用于评价开放存取期刊,但是,核心—边缘结构分析对开放存取核心期刊选取具有一定的参考价值。
