手法を比較

	ネットワークベース共引用分析	書誌カップリング分析
分野	科学計量学	計量書誌学
系統	Process / pipeline	Process / pipeline
提唱年	1973 (co-citation); network-analytic extension widely adopted 2000s–2010s	1963
提唱者	Henry Small (co-citation foundation); network visualization extended by Chaomei Chen and others	Melvin M. Kessler
種類	Bibliometric network analysis	Method
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.	Kessler, M. M. (1963). Bibliographic coupling between scientific papers. American Documentation, 14(3), 123–131.
別名	co-citation network analysis, bibliometric network co-citation, co-citation mapping, CCA network approach	document coupling, bibliographic similarity
関連	6	5
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.	Bibliographic coupling is a method that identifies intellectual relationships between documents by measuring their shared references. Two papers are considered 'coupled' when they cite the same sources, indicating they address related research questions or draw from the same conceptual foundations. Introduced by Kessler in 1963, this approach enables researchers to map knowledge domains and discover thematically similar publications without relying on subject cataloging or keywords.