We discuss what document types account for the calculation of the journal impact factor （JIF） as published in the Journal Citation Reports （JCR）. Based on a brief review of articles discussing how to predict JIFs ...We discuss what document types account for the calculation of the journal impact factor （JIF） as published in the Journal Citation Reports （JCR）. Based on a brief review of articles discussing how to predict JIFs and taking data differences between the Web of Science （WoS） and the JCR into account, we make our own predictions. Using data by cited-reference searching for Thomson Scientific＇s WoS, we predict 2007 impact factors （1Fs） for several journals, such as Nature, Science, Learned Publishing and some Library and Information Sciences journals. Based on our colleagues＇ experiences we expect our predictions to be lower bounds for the official journal impact factors. We explain why it is useful to derive one＇s own journal impact factor.展开更多
文章运用文献计量方法,以美国科学情报研究所开发的Web of Science数据库为数据源基础,检索了有关研究影响因子的文献,并从文献量、著者、机构、核心期刊、引文等角度进行了统计和分析,以定量数据从侧面反映了影响因子这一评价期刊质量...文章运用文献计量方法,以美国科学情报研究所开发的Web of Science数据库为数据源基础,检索了有关研究影响因子的文献,并从文献量、著者、机构、核心期刊、引文等角度进行了统计和分析,以定量数据从侧面反映了影响因子这一评价期刊质量的指标在其被提出之后30余年内的发展情况。展开更多
The Clarivate Analytics Journal Citation Reports(JCR)and Web of Science(WoS)platforms are arguably the most influential journal citation/metric databases worldwide.Journals must first be indexed in the WoS Core Collec...The Clarivate Analytics Journal Citation Reports(JCR)and Web of Science(WoS)platforms are arguably the most influential journal citation/metric databases worldwide.Journals must first be indexed in the WoS Core Collection(CC)before being indexed in the JCR.The JCR and WoS platform are separate Clarivate Analytics products,but the JCR is included in the WoS platform for organizations that purchase both databases.The analysis for this study focused on citation data reported in the 2017 JCR(based on 2016 citation data)and other data reported in the WoS CC up to 2016.A total of 14 journals are indexed in the 2017 JCR agricultural engineering category;however,only 13 journals are analyzed in this because one journal was listed by mistake.Six of the 13 journals are published by large for-profit publishers(i.e.,Elsevier B.V.or Springer Verlag)and the other seven are published by respective professional societies.The journals were analyzed as a function of type(specialty versus comprehensive),type of publisher and publication frequency,metrics such as the Journal Impact Factor(JIF),volumes of articles published by year and journal,and the source institutions and countries of published articles.Bioenergy-and industrial crop-focused journals included in the 2017 JCR agricultural engineering category manifest the strongest overall metrics,as evidenced by relatively high JIF scores:Bioresource Technology(4.917),Biomass and Bioenergy(3.219)and Industrial Crops and Products(3.181).In contrast,the highest JIF reported in the 2017 JCR for a comprehensive agricultural engineering journal was 2.044 for Biosystems Engineering.During 2006 to 2016,the number of articles indexed in the Core Collection for the JCR agricultural engineering category rose from 1,124 to 4,078,an increase of 263%.Over 70% of the total articles published in 2016 were published in the three bioenergy-or industrial-crop focused journals.The top three countries that published the highest levels of WoS Core Collection agricultural engineering articles in 2016 were China(1132),United States(669)and Brazil(474).The similar top publishing institutions were the United States Department of Agriculture(USDA;136),Chinese Academy of Sciences(CAS;136)and Indian Council for Scientific and Industrial Research(CSIR;79).The results of the study also show that publishing by Chinese scientists in the 13 journals indexed in the JCR Agricultural Engineering(AE)category is rapidly increasing,with seven research institutions ranked in the global top 20 in 2016,based on studies published in journals indexed in the JCR agricultural engineering category.The analysis also reveals that the specialty journals(e.g.,the three bioenergy-focused journals)are not directly comparable with the comprehensive agricultural engineering journals and should potentially be excluded from future versions of the JCR and WoS CC AE categories.展开更多
【目的】研究中国科技期刊国际影响力提升计划D类项目2013-2018年资助期刊被Web of Science(Wo S)数据库收录情况,考察D类项目资助期刊的发展成效,为世界一流期刊的建设提供参考。【方法】利用Wo S数据库,统计分析SCIE/SSCI收录D类项目...【目的】研究中国科技期刊国际影响力提升计划D类项目2013-2018年资助期刊被Web of Science(Wo S)数据库收录情况,考察D类项目资助期刊的发展成效,为世界一流期刊的建设提供参考。【方法】利用Wo S数据库,统计分析SCIE/SSCI收录D类项目资助期刊的学科分布和文献计量指标,评价D类项目资助期刊对SCI空白学科和优势学科的填补作用。【结果】D类项目资助期刊中有21种期刊被SCIE/SSCI收录,47.6%的收录期刊进入Q1区,5种期刊填补了SCI学科空白,16种期刊有效增补了优势/前沿学科。【结论】D类项目资助培育了一批优质期刊,成果显著,21种已被SCIE/SSCI收录的期刊代表了优势/前沿学科,或填补了学科空白,对世界一流期刊建设起到了推动作用。展开更多
目的分析2011~2015年卫生保健与服务研究态势,为我国该学科发展提供参考。方法基于Web of Science数据库,以SCI收录的18种5年影响因子排名最高的卫生保健与服务学科期刊在时间跨度为2011年1月1日~2015年5月21日内刊载的文章为研究对象,...目的分析2011~2015年卫生保健与服务研究态势,为我国该学科发展提供参考。方法基于Web of Science数据库,以SCI收录的18种5年影响因子排名最高的卫生保健与服务学科期刊在时间跨度为2011年1月1日~2015年5月21日内刊载的文章为研究对象,利用Microsoft Excel、Cite Space等软件分析检索结果。结果 2011年以来卫生保健服务研究文献发表数量呈上升趋势,加拿大、德国和瑞士在该领域的研究比较突出,最新研究热点主要是生命质量、卫生保健等。结论卫生保健与服务研究内容涵盖范围宽泛,生命质量一直是热点内容,初级医疗、医学教育的相关研究明显增加;我国在该领域的研究有所提升,但应注重质与量的同步发展。展开更多
文摘We discuss what document types account for the calculation of the journal impact factor （JIF） as published in the Journal Citation Reports （JCR）. Based on a brief review of articles discussing how to predict JIFs and taking data differences between the Web of Science （WoS） and the JCR into account, we make our own predictions. Using data by cited-reference searching for Thomson Scientific＇s WoS, we predict 2007 impact factors （1Fs） for several journals, such as Nature, Science, Learned Publishing and some Library and Information Sciences journals. Based on our colleagues＇ experiences we expect our predictions to be lower bounds for the official journal impact factors. We explain why it is useful to derive one＇s own journal impact factor.
文摘The Clarivate Analytics Journal Citation Reports(JCR)and Web of Science(WoS)platforms are arguably the most influential journal citation/metric databases worldwide.Journals must first be indexed in the WoS Core Collection(CC)before being indexed in the JCR.The JCR and WoS platform are separate Clarivate Analytics products,but the JCR is included in the WoS platform for organizations that purchase both databases.The analysis for this study focused on citation data reported in the 2017 JCR(based on 2016 citation data)and other data reported in the WoS CC up to 2016.A total of 14 journals are indexed in the 2017 JCR agricultural engineering category;however,only 13 journals are analyzed in this because one journal was listed by mistake.Six of the 13 journals are published by large for-profit publishers(i.e.,Elsevier B.V.or Springer Verlag)and the other seven are published by respective professional societies.The journals were analyzed as a function of type(specialty versus comprehensive),type of publisher and publication frequency,metrics such as the Journal Impact Factor(JIF),volumes of articles published by year and journal,and the source institutions and countries of published articles.Bioenergy-and industrial crop-focused journals included in the 2017 JCR agricultural engineering category manifest the strongest overall metrics,as evidenced by relatively high JIF scores:Bioresource Technology(4.917),Biomass and Bioenergy(3.219)and Industrial Crops and Products(3.181).In contrast,the highest JIF reported in the 2017 JCR for a comprehensive agricultural engineering journal was 2.044 for Biosystems Engineering.During 2006 to 2016,the number of articles indexed in the Core Collection for the JCR agricultural engineering category rose from 1,124 to 4,078,an increase of 263%.Over 70% of the total articles published in 2016 were published in the three bioenergy-or industrial-crop focused journals.The top three countries that published the highest levels of WoS Core Collection agricultural engineering articles in 2016 were China(1132),United States(669)and Brazil(474).The similar top publishing institutions were the United States Department of Agriculture(USDA;136),Chinese Academy of Sciences(CAS;136)and Indian Council for Scientific and Industrial Research(CSIR;79).The results of the study also show that publishing by Chinese scientists in the 13 journals indexed in the JCR Agricultural Engineering(AE)category is rapidly increasing,with seven research institutions ranked in the global top 20 in 2016,based on studies published in journals indexed in the JCR agricultural engineering category.The analysis also reveals that the specialty journals(e.g.,the three bioenergy-focused journals)are not directly comparable with the comprehensive agricultural engineering journals and should potentially be excluded from future versions of the JCR and WoS CC AE categories.
文摘【目的】研究中国科技期刊国际影响力提升计划D类项目2013-2018年资助期刊被Web of Science(Wo S)数据库收录情况,考察D类项目资助期刊的发展成效,为世界一流期刊的建设提供参考。【方法】利用Wo S数据库,统计分析SCIE/SSCI收录D类项目资助期刊的学科分布和文献计量指标,评价D类项目资助期刊对SCI空白学科和优势学科的填补作用。【结果】D类项目资助期刊中有21种期刊被SCIE/SSCI收录,47.6%的收录期刊进入Q1区,5种期刊填补了SCI学科空白,16种期刊有效增补了优势/前沿学科。【结论】D类项目资助培育了一批优质期刊,成果显著,21种已被SCIE/SSCI收录的期刊代表了优势/前沿学科,或填补了学科空白,对世界一流期刊建设起到了推动作用。
