Data Sources and Citation Metrics
The 5th edition of the Research.com Best Engineering and Technology Scientists in Saudi Arabia Ranking is primarily based on comprehensive bibliometric data sourced from OpenAlex and CrossRef, complemented by multiple additional trusted databases. These sources provide extensive and up-to-date records of scholarly publications, citations, and related metadata. The bibliometric data utilized to devise the citation-based metrics for this ranking were collected on January 12, 2026.
A scientist’s position in the ranking is determined by their D-index (Discipline H-index), a refined metric that exclusively includes papers and citation metrics relevant to the specific examined discipline. This focus ensures that the ranking accurately reflects a researcher’s impact within Engineering and Technology.
Scope of Research and Inclusion Criteria
A total of 279,971 scientist profiles were analyzed across all disciplines using a variety of bibliometric data sources. Specifically, 59 scientists specializing in Engineering and Technology were evaluated in this edition. To qualify for inclusion in the ranking, a scientist must have a D-index of at least 30, with a majority of their tier publications directly related to Engineering and Technology.
In addition to bibliometric performance, scientists’ awards and professional achievements within the field were taken into consideration as supplementary qualitative factors. The D-index threshold is dynamically set in increments of 10, calibrated to the estimated total number of scholars per discipline. This approach ensures that the ranking incorporates the top 1% of leading researchers while maintaining rigor.
Further, there is a constraint that the proximity gap between a scientist’s general H-index and their D-index should not exceed 30%, providing additional assurance that high disciplinary relevance is maintained.
Verification and Validation Practices
Research.com recognizes that raw bibliometric data alone cannot serve as an absolute measure of scholarly output or impact. To address this, all scientist profiles were manually verified and cross-correlated with publications in a broad range of trustworthy academic sources and repositories, ensuring accuracy and reliability of the data presented.
Although the number of papers published in prominent journals and conference proceedings does not directly alter a researcher’s position in the ranking, it serves as a valuable secondary indicator of their contribution to the field.
The ranking positions are ultimately established using each researcher’s D-index, derived from information gathered primarily from OpenAlex and CrossRef — the most prominent and widely respected bibliometric databases accessible to the global research community. Readers are encouraged to review detailed information on the methodology involved at our methodology page.
Research.com’s Mission and Vision
Research.com’s objective in creating this ranking is to inspire researchers, policy makers, and industry leaders worldwide to track the trajectories of leading experts across disciplines and geographical regions. By offering a transparent and rigorous way to identify top scientists in specific fields such as Engineering and Technology, in various countries, and within academic institutions, we aim to foster collaboration, innovation, and recognition within the global scientific community.
The meticulous and careful methodology behind this ranking underscores our commitment to providing a credible and authoritative resource that supports informed decision-making and promotes excellence in research.
