So sánh phương pháp

	Chiến lược tìm kiếm có hệ thống	Phân tích trích dẫn
Lĩnh vực	Kỹ năng nghiên cứu	Kỹ năng nghiên cứu
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1990s (formalized in Cochrane methodology)	1955 (citation indexes); 1975 (Impact Factor); 2005 (H-index)
Người khởi xướng	Cochrane Collaboration and systematic review methodologists	Eugene Garfield (Citation Indexes, 1955); Jorge Hirsch (H-index, 2005)
Loại	Framework	Tool
Công trình gốc	Moher, D., Liberati, A., Tetzlaff, J., & Altman, D. G. (2009). Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA statement. PLoS Medicine, 6(7), e1000097.	Hirsch, J. E. (2005). An index to quantify an individual's scientific research output. Proceedings of the National Academy of Sciences, 102(46), 16569–16572.
Tên gọi khác	search protocol, systematic search, comprehensive search strategy	citation metrics, bibliometric analysis, citation tracking
Liên quan	3	4
Tóm tắt	A systematic search strategy is a comprehensive, transparent protocol for retrieving all relevant literature addressing a well-defined research question. Developed by the Cochrane Collaboration and formalized in guidelines like PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses), systematic search strategies are essential for conducting unbiased literature reviews, systematic reviews, and meta-analyses. Unlike ad hoc searches (searching Google Scholar or PubMed without a protocol), systematic searches document every step—which databases were searched, what search terms were used, how many results were retrieved, and what inclusion/exclusion criteria were applied—enabling other researchers to reproduce the search and verify that no relevant studies were missed.	Citation analysis is the systematic study of how scholarly works are cited by subsequent research, used as a proxy for research impact and influence. Founded formally by Eugene Garfield in 1955 (introducing citation indexes), the field encompasses metrics ranging from simple citation counts to sophisticated indices like the H-index (Hirsch, 2005) and field-normalized indicators. Citation analysis is used to evaluate researcher productivity, track influence of ideas, assess journal quality, and detect research trends. While citation counts are not perfect measures of quality (high citation does not equal high quality; time lag in citation accumulation), they provide valuable quantitative data for research evaluation alongside peer review and expert assessment.