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【目的】分析四种网络数据源在期刊影响力评价方面的异同,为期刊综合评价提供理论指导。【方法】以2014年JCR、Pubmed数据库均收录的影响因子排名前50的开放存取期刊为研究对象,通过相关分析、因子分析提取各数据源平台在期刊评价中的主要影响因子,作为期刊评价中重点考察的代表性数据指标。【结果】JCR的期刊影响力主要来源于被引频次、可引用项目;Google scholar扩大了期刊信息的传播范围;Altmetrics.com注重网络传播指标、获取指标和利用指标,其主要影响因素来源于网络传播指标。【结论】JCR反映的是期刊在学界的影响力;Google scholar前置了期刊评价;应用搜索引擎获取期刊网站的链接数、IP访问量、PV浏览量等描述了期刊传播阶段的影响力。Altmetric.com将期刊评价延伸到传播、获取和利用的全过程。
【Objective】 The purpose of this paper is to analyze the similarities and differences between the four kinds of network data sources in periodical impact assessment and to provide theoretical guidance for the comprehensive evaluation of periodicals. 【Method】 Taking the top 50 open access journals with influence factors included in JCR and Pubmed databases as the research objects in 2014, the main influence factors of each data source platform in journals evaluation were extracted through correlation analysis and factor analysis, The key data in the study of the indicators. 【Result】 JCR’s journals mainly come from citation frequency and can cite projects. Google scholar expanded the scope of journal information dissemination. Altmetrics.com focused on indicators of network communication and utilization of indicators, and the main influencing factors were network Dissemination indicators. 【Conclusion】 JCR reflects the influence of journals in academia; Google scholar leads the evaluation of journals; the use of search engines to get the number of links of journals, IP traffic, PV views and so on describes the impact of journals dissemination phase. Altmetric.com extends journal evaluation to the entire process of communication, access and utilization.