Porovnat metody

	Databáze Scopus	Adresář časopisů s otevřeným přístupem	SCImago Journal Rank
Obor	Bibliometrie	Bibliometrie	Bibliometrie
Rodina	Process / pipeline	Process / pipeline	Process / pipeline
Rok vzniku	2004	2003	2010
Tvůrce	Elsevier	DOAJ Community (Swedish library consortium, later expanded to international consortium)	SCImago Group (Spanish research consortium)
Typ	Database	Database	Metric
Původní zdroj	Elsevier. (2024). Scopus: The largest abstract and citation database of peer-reviewed literature. Retrieved from https://www.elsevier.com/products/scopus	Directory of Open Access Journals. (2024). About DOAJ. Retrieved from https://doaj.org/	González-Pereira, B., Guerrero-Bote, V. P., & Moya-Anegón, F. (2010). The SJR indicator: A new indicator of journals' scientific prestige. Scientometrics, 82(2), 391-400.
Další názvy	Scopus, Elsevier Scopus	DOAJ, Directory of Open Access	SJR, SCImago Journal Rank, Prestige-weighted impact
Příbuzné	5	5	5
Shrnutí	Scopus, owned by Elsevier, is the world's largest abstract and citation database covering peer-reviewed journals, conference proceedings, and book chapters across all scientific disciplines. Launched in 2004, Scopus now indexes over 37 million documents from more than 6,500 journals, with expanded coverage of open-access publications and emerging regional journals. Scopus provides researchers and institutions with comprehensive citation tracking, field-normalized impact metrics (CiteScore, SJR, SNIP), and analytical tools for literature discovery, research evaluation, and institutional benchmarking.	The Directory of Open Access Journals (DOAJ) is a community-maintained, freely accessible directory of high-quality, peer-reviewed open-access journals and articles established in 2003. DOAJ indexes over 20,000 open-access journals across all disciplines (sciences, social sciences, humanities, arts) from diverse geographic regions. The directory serves researchers, librarians, and administrators as the authoritative curated list of legitimate open-access journals—differentiating quality open-access publications from predatory journals that lack genuine peer review. DOAJ quality seal, awarded to journals meeting stricter governance and transparency criteria, enables identification of the highest-caliber open-access publications.	SCImago Journal Rank (SJR) is a prestige-weighted metric measuring journal citation impact based on Scopus data, developed by SCImago Group (a Spanish research consortium) in 2010. Unlike raw citation counts, SJR values citations from high-prestige journals more heavily than those from lower-prestige journals, similar to Google's PageRank algorithm. This prestige weighting approach accounts for field-specific citation cultures and provides fairer cross-discipline comparisons than raw impact factor. SJR is widely used for journal ranking, quality assessment, and publication targeting, complementing traditional Impact Factor with a prestige dimension.