A scientist’s position in the ranking is determined by their D-index (Discipline H-index), a refined metric that only considers papers and citation metrics within the researcher’s examined discipline. This discipline-focused approach offers a more precise reflection of a scientist’s research impact within their primary area of expertise.
Scope of Research and Qualification Criteria
The ranking’s scope spans an extensive evaluation of 279,971 scientist profiles identified from diverse bibliometric data sources across all fields of study. Within the field of Engineering and Technology, 39 scientists were specifically examined based on relevant bibliometric indicators. To qualify for inclusion in this ranking, a scientist must meet two primary criteria:
- Possess a D-index of at least 30.
- Have the majority of their tier publications categorized under Engineering and Technology.
In addition to quantitative metrics, scientists’ awards and achievements in the field of Engineering and Technology were also factored into the evaluation process. The D-index threshold for considering top researchers is dynamically set as increments of 10, calibrated by the estimated total number of scholars within each discipline, while ensuring that the top 1% of leading scholars are included in the final list. Furthermore, there is a requirement that the proximity between a scientist’s general H-index and their D-index should be 30% or less, to guarantee consistency and relevance within their specialized field.
Verification Practices and Additional Considerations
Recognizing the inherent limitations of raw bibliometric data as an absolute evaluative tool, the Research.com team has undertaken meticulous manual verification of all scientist profiles included in the ranking. This verification process involved cross-correlating publication records against a broad spectrum of trustworthy sources to affirm the accuracy and completeness of the data.
Although not a direct factor influencing a researcher’s ranking position, the number of publications in prominent journals and conference proceedings is considered a valuable secondary signal of scientific contribution within a specific research area. The ranking positions are, however, firmly established using the D-index computed from data sourced chiefly from OpenAlex and CrossRef.
Researchers and institutional representatives interested in a detailed understanding of the ranking’s methodology are encouraged to visit our methodology page.
Research.com’s Mission and Vision Behind the Ranking
The overarching mission of Research.com in creating this ranking is to inspire and motivate researchers, companies, and policymakers worldwide to monitor the trajectories of leading experts in various disciplines. By providing a transparent and methodologically sound platform, our goal is to facilitate the scientific community’s awareness of who the foremost experts are in specific fields, within different countries, and across research institutions.
This initiative underscores our commitment to supporting evidence-based decision-making in academic collaborations, funding allocations, and policy formation by illuminating the forefront of scientific excellence.
