A scientist’s position within the ranking is determined by their D-index (Discipline H-index). This metric exclusively takes into account papers and citations pertinent to the specific discipline under examination, in this case, Engineering and Technology. By focusing solely on discipline-specific outputs, the D-index provides a more accurate reflection of a researcher’s impact within their specialized field than general bibliometric measures.
Scope of Research and Inclusion Criteria
This ranking evaluates a wide scope of research activities, beginning with an initial examination of 279,971 scientist profiles assembled from a variety of bibliometric sources across all academic disciplines. Within this broader population, 111 scientists were specifically identified and assessed within the Engineering and Technology domain.
To qualify for inclusion in the ranking, a scientist must have a D-index of at least 30, ensuring that only researchers with substantial disciplinary impact are considered. Additionally, the majority of a qualifier’s tier publications must fall within the Engineering and Technology field. Consideration is also given to the scientist’s awards and recognized achievements within this discipline, reflecting excellence beyond citation metrics.
The D-index thresholds are calibrated as increments of 10 relative to the estimated number of scholars in each discipline, thereby guaranteeing inclusion of the top 1% of leading researchers. Furthermore, to maintain disciplinary relevance and avoid distortion by cross-disciplinary work, a maximum proximity of 30% is set between a scientist’s general H-index and their D-index.
Verification and Validation Procedures
Recognizing that raw bibliometric data alone cannot serve as an absolute measure of scholarly output, the Research.com team performed meticulous manual verification of all scientist profiles. This process involved cross-correlation against publications from a wide range of trusted sources to ensure accuracy and completeness.
While the number of publications in prominent journals and conference proceedings does not directly influence ranking position, it is considered a valuable secondary indicator of a scientist’s contribution within their area of expertise. The ranking itself is established based on the D-index derived from comprehensive data gathered through OpenAlex and CrossRef, two of the most respected bibliometric databases available to the research community.
For those interested in further details about the data collection and ranking methodology, please consult our methodology page.
Research.com’s Mission and Vision
The creation of this ranking aligns with Research.com’s broader mission to inspire researchers, industry leaders, and policymakers worldwide to engage with the trajectories of leading scientific experts. By providing a transparent and rigorously developed ranking, we aim to facilitate awareness of key contributors within specific fields, across different countries, and within particular research institutions.
Our goal is to enhance the visibility of top-tier scientific talent and foster collaboration, strategic investment, and informed decision-making in the global research ecosystem. The careful and meticulous processes embedded in the development of this ranking underscore our commitment to credibility and meaningful recognition of scholarly excellence.
