Sources of Data and Metrics
The 5th edition of the Research.com Best Engineering and Technology Scientists in Iraq Ranking is primarily based on bibliometric data gathered from OpenAlex and CrossRef, along with multiple other reputable data sources. These platforms are among the most prominent and well-established databases available to the research community, providing comprehensive publication and citation records essential for robust scientometric analyses. The data used to devise the citation-based metrics, including the D-index, were collected on January 12, 2026. A researcher’s position in the ranking is determined by their Discipline H-index (D-index), a refined metric that considers only the publications and citations relevant to the specific discipline under examination, ensuring a focused and discipline-specific assessment of scientific influence.
Scope of Research and Qualification Criteria
The ranking evaluates 279,971 scientist profiles identified through an extensive aggregation of bibliometric data sources across all scientific disciplines. Within this vast cohort, six scientists specializing in Engineering and Technology in Iraq were specifically examined for inclusion in the ranking. To qualify, a researcher must have a D-index of at least 30, with the majority of their tier publications concentrated in the Engineering and Technology field. Additionally, significant awards and achievements within this domain were incorporated as supplementary factors in the evaluation process.
The threshold for the D-index is adjusted in increments of 10 depending on the estimated population of scholars within each discipline, ensuring that the ranking includes the top 1% of leading researchers. Furthermore, to maintain a meaningful measure of a scientist's disciplinary focus, there is a requirement that the proximity between their general H-index and their D-index be 30% or less. This criterion safeguards that the selected scientists demonstrate consistent and substantial impact within Engineering and Technology specifically.
Verification and Validation Procedures
Recognizing that raw bibliometric data alone cannot serve as an absolute measure of a researcher’s scholarly output, every scientist profile included in the ranking was manually verified. This process involved cross-referencing publication records across a broad array of trustworthy sources to ascertain the authenticity and relevance of the data. While the number of papers published in premier journals and reputable conference proceedings does not directly affect the ranking position, it provides a valuable secondary indicator of a scientist’s contribution to research within the specified area of study.
The ranking position ultimately is established using each researcher’s D-index, rigorously calculated from information harvested via OpenAlex, CrossRef, and other authoritative bibliometric databases. These practices collectively reinforce the reliability and validity of the ranking results. For a comprehensive overview of the detailed methodological framework underpinning this ranking, please visit our methodology page.
Research.com’s Mission and Vision
Research.com is dedicated to inspiring researchers, corporations, and policymakers worldwide to recognize emerging trends and leadership in scientific expertise. By providing transparent and meticulously curated rankings, our mission is to facilitate a clearer understanding of who the leading experts are across specific disciplines, countries, or institutional environments. We aspire to foster connectivity and knowledge exchange across the global scientific community, empowering decision-makers and stakeholders to make informed strategic choices based on rigorously established evidence of scholarly excellence.
