Data Sources Utilized for the Ranking
The 5th edition of the Research.com Best Chemistry Scientists in Lebanon Ranking is primarily based on comprehensive bibliometric data harvested from OpenAlex and CrossRef, supplemented by multiple other reputable data sources. These sources collectively provide extensive coverage of scholarly publications and citation metrics, enabling the construction of robust citation-based indicators. The bibliometric data used to devise these metrics was collected on January 12, 2026. A researcher’s position within the ranking is determined by their D-index (Discipline H-index), which specifically accounts for papers and citations strictly within the discipline under examination, ensuring that contributions in Chemistry are accurately measured and contextualized.
Scope and Criteria of the Ranking
The ranking was compiled after examining 279,971 scientist profiles identified from a variety of bibliometric data sources across all academic disciplines. Within this comprehensive pool, profiles of 2,000 scientists from the Chemistry discipline specifically were analyzed. To qualify for inclusion in the ranking, a scientist must have a D-index of at least 40, with the majority of their tier publications belonging to the field of Chemistry. Additionally, a scientist’s awards and notable achievements in Chemistry were factored into the evaluation.
The D-index threshold for distinguishing top researchers is set incrementally by 10 according to the estimated total number of scholars in each discipline, while ensuring that the top 1% of leading scholars are represented within the list. Furthermore, to affirm disciplinary consistency, there is a requirement that the disparity between a scientist’s general H-index and their D-index remain at 30% or less, thereby reinforcing a focus on genuine expertise within Chemistry.
Verification and Quality Assurance
Recognizing that raw bibliometric data alone cannot capture the full scope of a researcher’s contributions, the Research.com team has implemented rigorous additional verification practices to bolster the accuracy and credibility of the ranking. Each scientist’s profile was manually verified and cross-correlated against publications indexed in a wide range of trustworthy academic sources.
While not directly influencing a researcher's position in the ranking, the number of papers published in prominent journals and conference proceedings is considered an important secondary indicator of a scientist’s impact within the Chemistry community. The core ranking metric—the D-index—is derived strictly from the data collected from OpenAlex and CrossRef, which are widely regarded as the most prominent and reliable bibliometric databases accessible to the research community today.
For a detailed explanation of the methodology and the processes employed in assembling this ranking, please consult our methodology page.
Research.com’s Mission and Purpose Behind the Ranking
At Research.com, our mission is to inspire researchers, companies, and policy makers worldwide to monitor and understand where leading scientific experts are advancing their fields. This ranking serves as a transparent, authoritative resource for the entire scientific community to identify and recognize the foremost experts in specific areas of study, whether by country, discipline, or within academic institutions. Through careful and meticulous analysis combined with comprehensive validation, we aim to foster greater awareness of scholarly excellence and to support informed decisions in research collaborations, funding, and policy formulation.
