The CWTS Leiden Ranking methodology
relies purely on bibliometric data from Web of Science (Traditional) or OpenAlex (Open Edition), focusing on publication volume and citation impact, not self-reported data. It uses indicators like total publications, mean normalized citation score (MNCS), and proportion of top 10% cited papers, while accounting for discipline, language, and institutional size, presenting multiple views rather than a single score, making it a detailed, data-driven assessment of research performance
