Data Sources and Citation Metrics
The 5th edition of the Research.com Best Engineering and Technology Scientists in Liberia Ranking is primarily based on bibliometric data sourced from OpenAlex and CrossRef, complemented by multiple other reputable data repositories. The citation-based metrics used to construct the ranking were collected on January 12, 2026, ensuring a current and comprehensive dataset. Each scientist’s position in the ranking is determined by their D-index (Discipline H-index), a metric designed to assess impact strictly within the boundaries of the examined discipline, considering only the papers and citations related to Engineering and Technology.
Scope of Research and Qualification Criteria
For this edition, an initial pool of 279,971 scientist profiles across all disciplines was analyzed, including 1 scientist specifically identified in the field of Engineering and Technology in Liberia. To qualify for the ranking, a researcher must have a D-index of at least 30, with the majority of their tier publications concentrated in Engineering and Technology. Additionally, the evaluation factored in scientists’ awards and professional achievements within the discipline.
The threshold for the D-index is strategically set as increments of 10, aligned with the estimated total number of scholars in each discipline. This method ensures that the top 1% of leading experts are incorporated into the list. Furthermore, to maintain discipline-specific relevance, candidates are required to have a difference of no more than 30% between their overall H-index and their D-index, underscoring a strong focus on their scholarly contributions within Engineering and Technology.
Additional Verification Practices
Recognizing the limitations of raw bibliometric data as a sole evaluative tool, the team behind this ranking has conducted meticulous manual verifications of all scientist profiles. This included cross-correlation against publications indexed in a wide range of trusted and authoritative sources to verify accuracy, authenticity, and relevance. While not directly impacting the ranking position, the number of publications in prominent journals and conference proceedings serves as a valuable secondary indicator of a scientist’s contribution to their specific field.
The ranking positions are ultimately established using the researchers’ D-index, derived from data gathered through OpenAlex and CrossRef — the most prominent and established bibliometric databases accessible to the research community today. For a detailed overview of the methodology, we invite readers to visit our methodology page.
The Research.com Agenda
Research.com is committed to motivating researchers, academic institutions, companies, and policymakers worldwide to observe and understand the trajectories of leading experts in various scientific domains. This ranking aims to facilitate a transparent and accessible means for the global scientific community to identify and engage with top-tier researchers in specific areas of study, across different countries, and within individual research organizations. Through this, we seek to promote collaboration, innovation, and informed decision-making based on a clear understanding of research leadership.
