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| ジャーナルインパクトファクター× | Scopusデータベース× | |
|---|---|---|
| 分野 | 計量書誌学 | 計量書誌学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1955 | 2004 |
| 提唱者≠ | Eugene Garfield, Institute for Scientific Information (ISI) | Elsevier |
| 種類≠ | Metric | Database |
| 原典≠ | Garfield, E. (1972). Citation analysis as a tool in journal evaluation. Science, 178(4060), 471-479. DOI ↗ | Elsevier. (2024). Scopus: The largest abstract and citation database of peer-reviewed literature. Retrieved from https://www.elsevier.com/products/scopus link ↗ |
| 別名≠ | IF, JIF, Impact Factor, 2-year Impact Factor | Scopus, Elsevier Scopus |
| 関連 | 5 | 5 |
| 概要≠ | Journal Impact Factor (JIF) is a metric developed by Eugene Garfield in 1955 and published annually by Clarivate Analytics through Journal Citation Reports (JCR). It measures the average citation frequency of articles published in a journal over a two-year window, serving as a proxy for journal prestige and influence. A journal's Impact Factor equals the number of citations received in year Y to articles published in Y-1 and Y-2, divided by the number of citable items published in that same window. Despite widespread adoption in research evaluation, Impact Factor has significant limitations and critics argue it conflates journal prestige with article quality. | Scopus, owned by Elsevier, is the world's largest abstract and citation database covering peer-reviewed journals, conference proceedings, and book chapters across all scientific disciplines. Launched in 2004, Scopus now indexes over 37 million documents from more than 6,500 journals, with expanded coverage of open-access publications and emerging regional journals. Scopus provides researchers and institutions with comprehensive citation tracking, field-normalized impact metrics (CiteScore, SJR, SNIP), and analytical tools for literature discovery, research evaluation, and institutional benchmarking. |
| ScholarGateデータセット ↗ |
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