手法を比較

	ネットワークベース共引用分析	書誌計量分析
分野	科学計量学	科学計量学
系統	Process / pipeline	Process / pipeline
提唱年	1973 (co-citation); network-analytic extension widely adopted 2000s–2010s	1969 (term coined); practice dates to 1920s–1930s
提唱者	Henry Small (co-citation foundation); network visualization extended by Chaomei Chen and others	Alan Pritchard (coined term); earlier quantitative work by Paul Otlet (1934) and S. C. Bradford (1934)
種類	Bibliometric network analysis	Quantitative literature analysis
原典	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.	Pritchard, A. (1969). Statistical bibliography or bibliometrics? Journal of Documentation, 25(4), 348–349.
別名	co-citation network analysis, bibliometric network co-citation, co-citation mapping, CCA network approach	bibliometrics, bibliometric study, bibliometric mapping, publication analysis
関連	6	6
概要	Network-based co-citation analysis is a bibliometric technique that measures how often pairs of documents are cited together by later works, then models those relationships as a weighted network. Nodes represent documents (or authors or journals), edges represent co-citation frequency, and network algorithms identify clusters of intellectually related literature. It is widely used in systematic and scoping reviews to map the intellectual structure of a research field.	Bibliometric analysis applies statistical and mathematical methods to bibliographic records — publications, citations, authors, journals, and keywords — to measure and map the structure, output, and intellectual evolution of a research field. It is widely used to identify influential works, prolific authors, productive journals, collaboration networks, and emerging research themes across any academic discipline.