Data Sources and Bibliometric Metrics
The 5th edition of the Research.com Best Materials Science Scientists in Malaysia Ranking is founded on robust and comprehensive bibliometric data. Primary data sources include OpenAlex and CrossRef, complemented by multiple additional scholarly databases to ensure wide coverage and accuracy. The citation-based metrics utilized for this ranking were meticulously collected on January 12, 2026, providing a current and precise snapshot of scholarly performance.
A scientist's position within the ranking is determined by their D-index (Discipline H-index), a specialized metric that captures citation impact exclusively within the examined discipline — in this instance, Materials Science. This focus allows for a more tailored evaluation of scholarly influence relative to the specific area of expertise.
Scope of Research and Inclusion Criteria
Our analysis encompassed a total of 279,971 scientist profiles identified from a broad spectrum of bibliometric data sources across all disciplines, with 45 scientists specifically recognized in Materials Science. To qualify for inclusion in the ranking, candidates were required to have a D-index of at least 40. Additionally, the majority of their tier publications had to be distinctly aligned with the Materials Science domain.
Further consideration was given to scientists’ awards and notable achievements within the field, providing qualitative depth beyond bibliometric measures. The threshold for the D-index was set dynamically, increasing in increments of 10 relative to the estimated total number of scholars per discipline, thereby ensuring that the top 1% of leading experts are systematically incorporated. A proximity condition was also applied, whereby a scientist’s general H-index and their D-index must not differ by more than 30%, reinforcing the disciplinary relevance of the evaluation.
Verification and Validation Practices
Recognizing that raw bibliometric data alone cannot fully capture a researcher’s impact, we employed rigorous manual verification procedures. Each scientist’s profile was cross-correlated against publications indexed in a multitude of trustworthy sources to confirm accuracy and legitimacy.
While not a direct factor influencing the ranking placement, the volume of papers published in recognized journals and conference proceedings serves as an important secondary indicator of a scientist’s substantive contributions within Materials Science.
The final ranking positions were established using the D-index metric derived from data hosted on OpenAlex and CrossRef — two of the most prominent and widely respected bibliometric databases accessible to the global research community. We invite interested parties to explore the detailed methodological framework and underlying processes on our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to inspire researchers, industry leaders, and policymakers globally to discern emerging trends and areas of excellence by identifying who the leading experts are within specific scientific fields, countries, and institutions. This ranking initiative is intended to provide an authoritative and transparent resource that fosters deeper engagement and collaboration across the scientific ecosystem.
Through meticulous data curation, advanced bibliometric analysis, and careful validation, we strive to uphold the highest standards of credibility and trust in recognizing scholarly excellence in Materials Science and beyond.
