A scientist’s position within the ranking is determined by their D-index (Discipline H-index), a metric that exclusively considers papers and citation data pertinent to the examined discipline, Engineering and Technology. This allows for a focused and discipline-specific assessment of research impact that reflects expertise within the specific scientific domain.
Scope of the Research
The ranking encompasses an examination of 279,971 scientist profiles identified through a broad spectrum of bibliometric data sources spanning all academic disciplines, of which 1,234 profiles belong specifically to the field of Engineering and Technology.
To qualify for inclusion in the ranking, a scientist must have a D-index of at least 30, with the majority of their tier publications concentrated in Engineering and Technology. Additionally, consideration is given to scientists’ awards and notable achievements within the field. The D-index threshold for top researchers is adaptively set in increments of 10 relative to the estimated total number of scholars per discipline. This stratified system ensures that the top 1% of leading experts are systematically incorporated into the list.
Moreover, there is a stringent requirement that the disparity between a scientist's general H-index and their D-index does not exceed 30%, ensuring the selected candidates have a considerable focus and impact in Engineering and Technology specifically, rather than a broadly diffused scholarly profile.
Additional Verification Practices
At Research.com, we recognize that raw bibliometric data alone cannot fully capture the qualitative aspects of scholarly output. For this reason, all scientist profiles included in the ranking underwent rigorous manual verification and cross-correlation against publications in an extensive array of trustworthy sources to ensure accuracy and relevance.
Although the number of papers published in high-impact journals and conference proceedings does not directly influence a researcher's position in this ranking, it remains an important complementary indicator of a scientist's contribution to their area of expertise. The primary criterion for ranking is the D-index calculated from data gathered through OpenAlex and CrossRef — two of the most authoritative and widely acknowledged bibliometric databases available to the research community.
We invite interested readers to review detailed explanations and technical aspects of our ranking methodology on our methodology page.
Research.com’s Agenda Behind the Ranking
Our mission at Research.com is to inspire and empower researchers, academic institutions, companies, and policymakers worldwide by providing transparent, data-driven insights into who the leading experts are in various scientific disciplines, countries, and research organizations. This ranking serves as a vital resource that helps illuminate where top researchers in Engineering and Technology are making significant advances and fosters awareness and collaboration within the global scientific community.
Through careful, meticulous data collection, verification, and analysis, we aim to uphold the highest standards of credibility and reliability in our rankings, ultimately contributing to the advancement of science and technology on both national and international stages.
