Data Sources and Citation Metrics
The 5th edition of the Research.com Best Materials Science Scientists in Saudi Arabia Ranking was developed using a comprehensive collection of bibliometric data sourced primarily from OpenAlex and CrossRef, complemented by multiple other reputable databases. The citation-based metrics employed in the ranking were derived from data collected on January 12, 2026. A key metric used to determine each scientist’s position is the D-index, or Discipline H-index, which evaluates citation impact exclusively within the specified discipline, Materials Science in this case. This targeted approach ensures that only papers and citations relevant to the discipline contribute to the ranking, enabling a precise measurement of scholarly influence in the field.
Scope of Research and Inclusion Criteria
The ranking examines a broad set of profiles—279,971 scientists identified across a variety of bibliometric data sources encompassing all scientific disciplines. Within this population, 72 scientists were specifically identified in the field of Materials Science. To qualify for the ranking, a researcher was required to have a D-index of at least 40 and to have a majority of their tier publications concentrated within Materials Science. Additionally, consideration was given to scientists’ awards and notable achievements related to the discipline.
The threshold for the D-index is carefully calibrated and incremented by 10 according to the estimated total number of scholars within each discipline, ensuring that the top 1% of leading researchers are incorporated into the list. Another important inclusion criterion is the proximity between a scientist’s overall H-index and their D-index being maintained within 30% or less, promoting consistency between general and discipline-specific impact measures.
Verification and Validation Practices
Recognizing that raw bibliometric data alone cannot serve as an absolute tool for evaluating scholarly output, the Research.com team undertakes extensive manual verification of all scientist profiles considered for the ranking. This process involves cross-correlating publication records with a wide array of authoritative and trustworthy sources. While not a direct factor influencing position in the ranking, the number of publications in prestigious journals and conference proceedings is regarded as a valuable secondary indicator of a scientist’s contribution to Materials Science research.
The final ranking positions are assigned based on the D-index calculated from the data aggregated primarily from OpenAlex and CrossRef, two of the most prominent and widely used bibliometric databases accessible to the global research community. For full transparency and detailed information about the methodology, readers are encouraged to visit our methodology page.
Research.com’s Mission and Vision
Research.com’s mission in creating this ranking is to inspire researchers, policymakers, and organizations worldwide to recognize the trajectory of leading scientific experts. Our goal is to provide a transparent, data-driven framework that highlights who the foremost authorities are within specialized disciplines such as Materials Science, across various countries, and within distinct research institutions. By doing so, we aim to foster greater collaboration, informed decision-making, and strategic investment in scientific research and innovation globally.
