A scientist’s position within the ranking is determined by their D-index (Discipline H-index), a refined metric that considers only papers and citation counts strictly relevant to the examined discipline. This ensures that the ranking reflects impact and productivity specifically within the scope of Engineering and Technology, rather than general scholarly influence.
Scope of Research and Qualification Criteria
Our analysis began with 279,971 scientist profiles identified from a diverse set of bibliometric sources, spanning all academic disciplines. From this extensive dataset, 15 scientists whose main focus is Engineering and Technology were examined in detail. To qualify for inclusion in the ranking, a researcher’s D-index had to be at least 30, ensuring demonstrated impact within the discipline.
Moreover, a majority of the researcher’s tier publications needed to be in the domain of Engineering and Technology, reinforcing the specificity of the ranking. Awards and significant achievements recognized within this field were also considered as supplementary indicators of distinction.
The threshold D-index for top researchers is adjusted in increments of 10 based on the estimated total number of scholars in each discipline, while also guaranteeing inclusion of the top 1% of leading experts. Additionally, to ensure disciplinary relevance, there is a strict proximity requirement whereby the difference between a scientist’s general H-index and their D-index does not exceed 30%.
Additional Verification Practices
Recognizing that raw bibliometric data alone cannot serve as an absolute measure of scholarly output or quality, the Research.com team undertook rigorous manual verification of all scientist profiles. Profiles were cross-correlated against publications indexed in a broad array of trusted sources to validate accuracy and authenticity.
While not a direct factor influencing ranking positions, the number of papers published in prominent journals and conference proceedings is acknowledged as an important secondary signal of a scientist’s contributions within their research field.
Ultimately, positions in the ranking are established using each researcher’s D-index derived from data sourced primarily from OpenAlex and CrossRef. For those interested in a deeper understanding of the methodologies underpinning this work, further details are provided on our methodology page.
Research.com’s Agenda
At Research.com, our mission is to motivate researchers, companies, and policymakers worldwide to closely examine trends and directions in expert scientific activity. This ranking serves as a critical tool enabling the global scientific community to identify and engage with leading experts in specific areas of study, across countries and within academic and research institutions.
Through transparent, meticulous, and methodologically sound processes, we aim to build credibility and foster informed decision-making in academia, industry, and government. Our commitment is to provide actionable insights that elevate scientific excellence and collaboration worldwide.
