在Web of Science,Scopus和Google Scholar中引用的比较,用于在一般医学期刊上发表的文章
Abhaya V Kulkarni1, Brittany Aziz, Iffat Shams
1Hospital for Sick Children, Room 1503, 555 University Ave, Toronto, ON, Canada M5G 1X8. abhaya.kulkarni@sickkids.ca
JAMA
|September 10, 2009
概括
谷歌学者和Scopus为医学文章提供比Web of Science更高的引用数量. 这些数据库在引用的文章类型上也有质量差异,这影响了引用分析.
科学领域:
- 图书统计学 图书统计学
- 医疗信息学 医疗信息学
- 科学出版 科研出版
背景情况:
- 网络科学是主要的引用跟踪数据库.
- 像Scopus和Google Scholar这样的新兴数据库提供了替代的引用跟踪.
- 这些引用数据库的比较性能仍然未确立.
研究的目的:
- 为了比较科学网,Scopus和谷歌学者中的引用数量概况.
- 分析引用数据中的定量和定性差异.
- 评估一般医学期刊文章的数据库性能.
主要方法:
- 这是一项对来自JAMA,Lancet和NEJM (1999-2000) 的328篇文章的队列研究.
- 引用数量是从科学网,Scopus和谷歌学者中提取到2008年6月的.
- 线性回归模型分析了文章特征与数据库的相互作用.
主要成果:
- 谷歌学者 (中位数160) 和Scopus (中位数149) 获取的引用数量超过了Web of Science (中位数122).
- 与Web of Science相比,Scopus捕获了更多的非英语和评论引用,更少的文章/编辑/信件引用.
- 与Web of Science相比,谷歌学者对行业资助,药物/设备研究和小组撰写的文章的引用较少.
结论:
- 科学网,Scopus和谷歌学者提供了不同的定量和定性引用数量.
- 数据库的选择影响引用指标和文献计量分析.
- 了解这些差异对于准确的研究评估至关重要.
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