Our methodology

Research.com adheres to high standards and transparent procedures based on well-established metrics in order to produce a wide range of rankings for the research community in a variety of disciplines.

Our methodology

Research.com depends on various sources of data which are cross-correlated followed by rigorous inspection and verification in order to ensure the validity and reliability of our rankings. The main objective is to promote high quality venues of research as well as establish a place for young scholars to be inspired by leading scientists.

Best Conferences Ranking Methodology

Research.com indexes major conferences in the area of computer science and electronics. The ranking of the best conferences is based primarily on the H5-index indicator provided by Google Scholar [4] in tandem with other valuable indicators including the indexing of proceedings, sponsoring bodies, number of editions, and the profiles of its steering committees.

What is H5-index?

The H5-index h for a conference series is computed based on the articles published in one of the conference editions during the last 5 years as the largest number h of conference articles having at least h citations.

Sponsorship and indexing requirements

For the technical sponsor and indexing of conference proceedings, the majority of the best conferences indexed by Research.com are sponsored or indexed by leading and well-respected publishers and academic organizations including IEEE, ACL, Springer, AAAI, USENIX, Elsevier, ACM and LIPIcs

Scope of topics

Based on the topics and scope of research areas accepted within conferences, rankings of the best conferences are provided for major categories in computer science and electronics. This includes, for instance, machine learning, software engineering, computer vision, and signal processing.

Best Scientists Ranking Methodology

For the ranking of top scientists (launched initially in 2014), the inclusion criteria for scholars to be considered into the ranking are based on their Discipline H-index (D-index), proportion of their contributions made within a given discipline as well as the awards and achievements of a scientist in specific areas. The D-Index is used to rank scholars in descending order combined with the total number of citations.

What is D-index?

The H-Index is an indicative measure which reflects the number of influential documents authored by scientists. It is computed as the number h of papers receiving at least h citations [3]. The H-index and citation data we use is obtained from Microsoft Academics which is the largest open bibliometric database.

The Discipline H-index (D-index) is calculated by considering only the publications and their citation values deemed to belong to an examined discipline.

Publications in Discipline-Ranked Journals & Conferences

To ensure fair ranking in all disciplines in addition to D-index, we also consider the number of publications in journals and conferences ranked and classified in an examined discipline. Scientists should have a consistent ratio of publications in discipline-ranked venues against their D-index. The bibliometric ratio gives an indication of contributions pertinent to a given discipline.

Awards and Academic Achievements

Besides the use of citation-based metrics, we also conduct rigorous searches for each scientist to inspect and include the awards, fellowships and academic recognitions they have received from leading research institutions and government agencies.

Inclusion Metrics and Approval Threshold

The D-index threshold for accepting a scientist to be listed is set as an increment of 10 depending on the total number of scientists estimated for each discipline. The D-index threshold ensures that the top 1% of leading scientists are considered into the ranking among all scholars and researchers belonging to the discipline. There should be a proximity of 30% or less between the scientist global H-index and their D-index.

Without doubt, numbers are never meant to be an obsolete measure to quantify the precious contributions of scientists, but a threshold value of 40 is a recommendation reported by J. E. Hirsch in his h-index paper where he suggests that a h-index of 40 characterizes outstanding scientists [1].

Universities Ranking Methodology

Due to the need to establish a transparent framework for ranking universities based on objective and well-established metrics for different disciplines, Research.com is the only ranking platform that capitalizes the human as a valuable asset to research and educational institutions offering its data and procedures publicly in a completely transparent way.

How university reputation metric is calculated

  • The position in the ranking of universities within a given discipline is based on the sum of Discipline H-index (D-index) for all leading scholars affiliated with a university.
  • A leading scientist is a scholar with a D-index higher than a threshold value for an examined discipline. This value can be different for each discipline and is based on the volume of scientists examined within a given area of study.
  • We also provide the number of documents published by leading scientists affiliated with a given university and deemed to be pertinent to the examined academic discipline.
  • The sum of citations for all leading scientists within a particular research institution is also available.
  • Only active scientists are considered. We exclude scientists who passed away or scholars who have not made a research publication during the last five years.

Why we use scholar reputation metrics

The ranking provided for universities by Research.com is based purely on the reputation of its scholars. We highly believe that companies should be valued based on the talents and reputation of its staff.

Because the ranking problem is compound by subjectivity between different experts on defining and perceiving the quality and impact of educational institutions, major companies providing mainstream rankings do not fully elaborate their ranking procedures nor do they offer their raw data. Besides, existing university rankings rely mostly on declarative and subjective analysis of data.

The first edition of the Research.com university ranking was released in 2020 covering over 591 research institutions and was limited to the area of computer science. In 2022 university rankings for all major scientific disciplines were released. The ranking of universities across research disciplines is based on simple metrics highly related to the reputation of academic staff in addition to research outputs as elaborated above.

Correlation with other mainstream university rankings

Based on cross-matching analysis, the ranking of universities provided by Research.com correlates consistently for the case of top universities with mainstream rankings maintained by leading companies with decades of experience in the field. This includes QS, USNews and TimesHigherEducation (THE).

Ranking Methodology for Academic Journals

Research.com offers a list of the best journals for various disciplines that are selectively reviewed annually based on a number of indicators related to the quality of accepted papers and reputation of the journal.

As there is no panacea in finding the magical metric or the analytical tool to produce a consensual score to please all experts from different disciplines, Research.com adopted a strict policy for indexing journals based on the following metrics.

Impact Score:

is a novel bibliometric indicator that quantifies the endorsement level of the best and well-respected scientists for a given journal. The score is estimated using two factors for data published during the last four years using the Microsoft Academic data:

H-IndexValue: Estimated h-index from publications made solely by the best scientists.

NumberTopScientists : Number of scientists who have published in the journal and have contributed to the H-indexValue.

Equation

Impact Factor:

is a measure that reflects the average number of citations an article in a particular journal would receive per year. It is computed as the sum of citations for all journal documents published during the two preceding years divided by the total number of articles published during the same period. This is elaborated in the following equation:

Equation

The impact factor is computed by the Web of Science and updated annually [5].

SJR:

is a metric developed by SCIMAGO research laboratory using Scopus data [6]. The measure indicates the scientific influence or prestige of an academic journal based on two factors which are the number of citations in tandem with the source of where the citations come from.

Article Processing Charges (APC):

Journals from a publishing house that requires an APC to be paid by authors to publish their research, are reviewed on a case by case basis to ensure that they are not predatory publishers or vanity press whose main goal is to make a profit at the expense of quality and research contributions [7].

Editorial board:

The editor-in-chief and members of the editorial board for the journal are also inspected against different bibliometric sources to ensure that the journal is led by experts in the area of research related to the journal.

Best Conferences Ranking Methodology

Research.com indexes major conferences in various disciplines of research. The ranking of the best conferences is based primarily on the Impact Score indicator computed using the number of endorsements by leading scientists. Further valuable indicators are considered whilst assessing conferences including the indexing, sponsoring bodies, number of editions and the profiles of its steering committees.

Impact Score:

A novel metric called Impact Score is devised to rank conferences based on the number of contributing the best scientists in addition to the h-index estimated from the scientific papers published by the best scientists. The score is estimated using two factors for data published during the last four years using the Microsoft Academic data:

H-IndexValue: Estimated h-index from publications made solely by the best scientists.

NumberTopScientists : Number of scientists who have published in the journal and have contributed to the H-indexValue.

Equation

Sponsorship and indexing requirements

For the technical sponsor and indexing of conference proceedings, the majority of the best conferences indexed by Research.com are sponsored or indexed by leading and well-respected publishers and academic organizations including IEEE, ACL, Springer, AAAI, USENIX, Elsevier, ACM, OSA and LIPIcs

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