Web of Science,Scopus,Google Scholarの引用を比較して,一般医学雑誌に掲載された論文を比較した
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
まとめ
Google ScholarとScopusは,Web of Scienceよりも高い引用数を医療記事に提供しています. これらのデータベースは,引用する記事の種類においても質的に異なっており,引用分析に影響を与えています.
科学分野:
- ビビロメトリクス (Bibliometrics) とは
- 医療情報工学 医療情報工学
- 科学的出版物 科学的出版物
背景:
- Web of Scienceは,引用トラッキングの主要なデータベースでした.
- ScopusやGoogle Scholarのような新興データベースは,代替的な引用トラッキングを提供している.
- これらの引用データベースの比較性能は,まだ確立されていない.
研究 の 目的:
- Web of Science,Scopus,Google Scholarの引用数プロフィールを比較するために
- 引用データにおける定量的,質的差異を分析する.
- 一般医学雑誌の記事のデータベースのパフォーマンスを評価する.
主な方法:
- JAMA,Lancet,NEJM (1999-2000) の328件の論文をコホート研究した.
- 引用数は,2008年6月までWeb of Science,Scopus,Google Scholarから抽出されました.
- 線形回帰モデルは,記事特性のデータベースとの相互作用を分析した.
主要な成果:
- Google Scholar (中位160) とScopus (中位149) は,Web of Science (中位122) よりも多くの引用を回収しました.
- Scopusは,Web of Scienceと比較して,英語以外の記事やレビューの引用を多く,記事/編集部/手紙の引用を少なく捉えました.
- Google Scholarは,Web of Scienceと比較して,業界が資金提供した,薬物/デバイスの研究,およびグループが執筆した記事の引用数が少ないことを示しました.
結論:
- Web of Science,Scopus,Google Scholarは,定量と質的に異なる引用数値を示しています.
- データベースの選択は,引用メトリックと文献測定分析に影響します.
- これらの違いを理解することは,正確な研究評価に不可欠です.
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