Data Sources and Ranking Methodology
The 3rd edition of the Research.com Best Universities in the World Ranking is built upon a robust set of bibliometric data, with primary sources including OpenAlex and CrossRef, among several other reputable data providers. The bibliometric data employed for the citation-based metrics central to the ranking were collected on 2024-11-27.
A university's position within the ranking is determined by the aggregated sum of D-indexes (Discipline H-index) of all ranking scholars affiliated with that institution. It is important to note that the D-index is discipline-specific, encompassing only publications and citation data pertinent to the respective research field. Nevertheless, the ranking takes into consideration scientists from all major areas of research, ensuring a comprehensive and multidimensional assessment of institutional research output.
Scope of Research
The scope of this ranking is both broad and inclusive. A total of 279,971 scientist profiles were systematically identified and reviewed, drawing from a variety of authoritative bibliometric data sources. All leading scientific disciplines are represented in this assessment. To ensure a high standard of scholarly achievement, each scientist considered for inclusion was required to have a D-index of at least 20. Additionally, individual awards and significant academic achievements were factored in, providing further insight into each scientist’s impact in their field.
Verification and Data Quality Procedures
The researchers behind the ranking recognize that raw data alone cannot fully or adequately evaluate scholarly output. Therefore, all scientist profiles were subject to manual verification and extensive cross-correlation with publications from a wide array of trustworthy sources. While the number of papers published in prominent journals and conference proceedings does not directly influence a researcher's position in the Research.com ranking, it does serve as a valuable secondary indicator of their research contributions within specific disciplines.
A researcher's position in the ranking is established using their H-index, derived from information collected from OpenAlex and CrossRef—both considered the most comprehensive and esteemed bibliometric databases available to the academic community. For a comprehensive description of the methodology used, please visit our methodology page.
Research.com’s Mission
The primary agenda behind the Research.com Best Universities in the World Ranking is to inspire scientists, business leaders, and policymakers globally by illuminating the trajectory of top experts in every field. Our mission is to provide clarity and transparency for the entire research community, enabling them to identify leading experts across disciplines, countries, and research institutions. Through meticulous data gathering and rigorous verification practices, we aim to foster greater understanding and connectivity within the worldwide scientific ecosystem.
