Focus: Research-intensive universities Scope: 1,411 institutions (2023) Timing: Annually (June) Stated goal: The Leiden Ranking stands for a multidimensional perspective on university performance, providing indicators of scientific impact, collaboration, open access publishing & gender diversity. Data sources: Web of Science data from the Science Citation Index Expanded, the Social Sciences Citation Index, & the Arts & Humanities Citation Index, enriched by CWTS. OpenAlex for open access indicators Methodology: Based on publications in a 3-year period classified as core publications (publications in international scientific journals in fields suitable for citation analysis & satisfy a particular criteria). See: www.leidenranking.com/information/indicators Typically, a university is characterized by a combination of education and research tasks in conjunction with a doctorate-granting authority. These characteristics do not mean that universities are particularly homogeneous entities that allow for international comparison on every aspect. As a result of its focus on scientific research, the Leiden Ranking presents a list of institutions with a high degree of research intensity in common. Indicators include: Publications, Open access indicators, Size-dependent vs. size-independent indicators, Gender indicators, Scientific impact indicators, Counting methods, Collaboration indicators, Trend analysis, Stability intervals Source: Accessed August 21, 2023: www.leidenranking.com