手法を比較

	共起語分析	共引用分析
分野	科学計量学	計量書誌学
系統	Process / pipeline	Process / pipeline
提唱年	1983	1973
提唱者	Michel Callon, Jean-Pierre Courtial, and colleagues	Henry Small
種類	Scientometric network analysis technique	Method
原典	Callon, M., Courtial, J. P., Turner, W. A., & Bauin, S. (1983). From translations to problematic networks: An introduction to co-word analysis. Social Science Information, 22(2), 191–235.	Small, H. (1973). Co-citation in the scientific literature: A new measure of the relationship between two documents. Journal of the American Society for Information Science, 24(4), 265–269.
別名	keyword co-occurrence analysis, co-word mapping, keyword co-word network, CWA	co-citation mapping, historiograph, direct citation, citation pair analysis
関連	6	5
概要	Co-word analysis is a scientometric technique that quantifies how often pairs of keywords, subject terms, or title words appear together across a corpus of publications. By treating simultaneous occurrence as a proxy for conceptual relatedness, it constructs networks and clusters that reveal the intellectual structure, dominant themes, and emerging sub-fields of a research domain.	Co-citation analysis is a method that identifies the intellectual structure of a research domain by examining how frequently pairs of documents are cited together in other publications. When two papers are frequently cited together in the literature, they are considered co-cited, indicating they are conceptually related or influential within the same research community. Developed by Henry Small in 1973, co-citation analysis maps the 'invisible colleges' of science—networks of researchers working on related problems—and reveals how knowledge domains evolve over time.