Best Universities in China 2026 Ranking

The D-index is a specialized metric that considers exclusively the publications and citation data within a given discipline, ensuring that discipline-specific research contributions are accurately reflected. Importantly, scholars from all major research domains were incorporated to provide a balanced and inclusive assessment of institutional research performance.

Scope of Research

The ranking evaluates a broad scope of research activities by examining 279,971 scientist profiles identified from a variety of bibliometric data repositories, encompassing all major scientific disciplines. To qualify for inclusion, each scientist must meet a D-index threshold of at least 20, which ensures that only those with significant scholarly impact are considered.

Alongside bibliometric criteria, scientists' recognized awards and achievements within their respective fields were also factored into the evaluation process. This approach safeguards the inclusion of distinguished researchers whose contributions extend beyond citation metrics alone.

Verification Practices and Data Integrity

The researchers behind this ranking are deeply aware that raw bibliometric data should not be used as an absolute instrument to evaluate a scholar’s output. Accordingly, all scientist profiles included in the ranking were manually verified and rigorously cross-correlated against publications in a diverse array of trustworthy and authoritative sources.

Although the quantity of papers published in prominent journals and conference proceedings does not directly impact a researcher's position in the Research.com ranking, it is recognized as a valuable secondary signal reflecting a scientist’s contributions in specific scientific areas.

The final ranking positions are established using each researcher's H-index derived from data obtained through OpenAlex and CrossRef—two of the most prominent and reliable bibliometric databases available to the research community today.

For a detailed explanation of the methodology applied in compiling this ranking, readers are encouraged to visit our methodology page.

Research.com’s Mission and Vision

At Research.com, our mission is to motivate scientists, business leaders, and policymakers worldwide to explore emerging trends and trajectories of top experts. We aim to provide the global research community with accessible, authoritative insights into who the leading experts are across specific disciplines, countries, and research institutions.

This ranking embodies our commitment to fostering transparency, excellence, and informed decision-making in academic and scientific research environments by delivering meticulously researched, data-driven evaluations with the utmost integrity and credibility.