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作 者:方志超 郑尔特 FANG Zhichao;ZHENG Er-Te(School of Information Resource Management of Renmin University of China,Beijing,100872;Centre for Science and Technology Studies of Leiden University,Leiden(The Netherlands),2300 AX;Information School of the University of Sheffield,Sheffield(The UK),S102AH)
机构地区:[1]中国人民大学信息资源管理学院,北京100872 [2]莱顿大学科学与技术研究中心,莱顿(荷兰)2300 AX [3]谢菲尔德大学信息学院,谢菲尔德(英国)S102AH
出 处:《图书情报知识》2025年第1期18-28,共11页Documentation,Information & Knowledge
基 金:国家自然科学基金青年科学基金项目“基于社交媒体用户画像的科学论文传播模式与影响力性质研究”(72304274)的研究成果之一。
摘 要:[目的/意义]各类政策引文数据库因索引范围的差异,可能导致围绕科学论文的政策计量分析结果的不同。需要通过比较研究来理解不同数据库所能提供的数据基础的差异,以更好地支持科研成果的政策影响力计量与评价。[研究设计/方法]比较了同时期内Altmetric和Overton两大主流政策引文数据库收录的政策文件范围的异同。并面向约1,700万篇科学论文,比较了Altmetric和Overton数据库提供的政策引文数据在覆盖范围、数据体量、学科分布等方面的差异。[结论/发现]相比于Altmetric,Overton提供了范围更广、数量更多的政策文件和政策引文,表现出显著的数据优势。但Altmetric与Overton收录的政策文件仅有小部分重合,二者代表了不同决策主体不同的政策观点和科学证据使用行为,难以相互替代,可以互为补充。[创新/价值]在科研成果的政策影响力定量评价中,应注意和警示政策引文数据库选择对结果可能造成的影响,制定合理的数据获取策略,以实现更负责任的评价。[Purpose/Significance]Differences in the scope of indexing among various policy citation databases may lead to different results in the policy metric analyses of scientific papers.In order to better support the measurement and evaluation of the policy impact of scientific research outcomes,a comparative study is needed to understand the differences in the data foundations provided by different databases.[Design/Methodology]This study compared the similarities and differences in the range of policy documents included in Altmetric and Overton,two mainstream policy citation databases,during the same period.It also compared the policy citation data provided by Altmetric and Overton for approximately 17 million scientific papers,focusing on aspects such as data coverage,data volume,and disciplinary distribution.[Findings/Conclusion]Compared to Altmetric,Overton provides a broader range and greater number of policy documents and policy citations,demonstrating a significant data advantage.However,only a small portion of the policy documents included in Altmetric and Overton overlap,representing different policy viewpoints and behaviors of different policymakers regarding the use of scientific evidence.Therefore,these databases are difficult to substitute for one another and can be complementary.[Originality/Value]In the quantitative evaluation of the policy impact of scientific research achievements,we should pay attention to and warn the potential impact of the choice of policy citation database on the results,and develop reasonable data acquisition strategies to achieve more responsible evaluations.
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