So sánh phương pháp

	Phân tích đồng trích dẫn (Co-Citation Analysis)	Phân tích đồng xuất hiện từ khóa
Lĩnh vực	Trắc lượng thư mục	Trắc lượng thư mục
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1973	2000s
Người khởi xướng	Henry Small	Bibliometric research community
Loại	Method	Method
Công trình gốc	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.	Cobo, M. J., López-Herrera, A. G., Herrera-Viedma, E., & Herrera, F. (2011). An approach for detecting, quantifying, and visualizing the evolution of a research field: A practical application to the fuzzy sets theory field. Journal of Informetrics, 5(1), 146–166.
Tên gọi khác	co-citation mapping, historiograph, direct citation, citation pair analysis	term co-occurrence, keyword network analysis, thematic analysis, term clustering
Liên quan	5	4
Tóm tắt	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.	Keyword co-occurrence analysis is a text mining and bibliometric method that identifies research themes and their relationships by analyzing how frequently terms or keywords appear together in abstracts, titles, or indexed keywords of scientific publications. When two keywords appear together frequently, they are considered co-occurring, indicating a shared thematic or conceptual relationship. This method rapidly reveals the topical structure of a research field without relying on formal classifications, making it particularly useful for detecting emerging research areas and understanding disciplinary boundaries.