Explore Rankings
Cambodia · Research intelligence

Royal University of Phnom Penh

Research output, impact, five-year growth, topic strengths and transparent benchmarking from open scholarly metadata.

ITS Research Score50.8
Global research rank#6,556
Country rank#5
Momentum rank#4,644
Impact Score33.6

Research performance overview

Royal University of Phnom Penh is an education institution in Cambodia represented in the ITS Research Intelligence database through OpenAlex and ROR-linked identity data. Over the most recent five-year window available locally, the institution is associated with 625 research works and 2,729 citations. Its current h-index is 52, while the five-year trend shows strong expansion in publication activity. It currently places #6,556 in the ITS global research-performance ranking. Within Cambodia, its current research-performance position is #5.

Five-year research output and impact

Research works, 5 years625
Citations, 5 years2,729
H-index52
i10-index467
Publication growth78.0%
Citation impact trend-6%

Recent citation volume is approximately 4.4 citations per five-year work when the two aggregate windows are divided. This is a descriptive ratio rather than a field-normalized citation indicator, because disciplines have very different citation practices. The h-index and i10-index add longer-run visibility context, while the growth metrics show direction of travel rather than historical accumulation alone.

Research trend by year

YearWorksCitations to that year’s papersOpen-access works
2010142384
2011173256
2012213605
2013194606
20143780516
20153560023
20165754048
2017196829169
2018711,26246
2019721,16155
20208468868
20218989369
20229760761
202310853784
2024173492147
2025158200134
202617034145

The yearly series runs from 2010 to 2026 in the current local snapshot. Annual research counts should be read as a pattern rather than as an audited financial-style total: scholarly metadata is continually corrected, affiliations can be re-resolved, and citations continue to accumulate after publication, so recent years always show fewer citations than older ones.

Research strengths and leading topics

Cambodian History and SocietyBryophyte Studies and RecordsPlant Diversity and EvolutionSoutheast Asian Sociopolitical StudiesAsian Geopolitics and EthnographyConservation, Biodiversity, and Resource ManagementLichen and fungal ecologyChild Nutrition and Water AccessSpecies Distribution and Climate ChangeFish Ecology and Management Studies

The strongest topic signals currently associated with Royal University of Phnom Penh include Cambodian History and Society, Bryophyte Studies and Records and Plant Diversity and Evolution. Topic lists are useful for understanding where an institution is visibly active, but they are not equivalent to a complete departmental census because OpenAlex topics are inferred from the institution’s works rather than from its administrative structure.

National benchmark

Among the 17 index-ready universities currently available for Cambodia, the average five-year output is about 1,179 works and the average five-year citation count is about 3,889. Royal University of Phnom Penh is currently below that research-output average and below the citation average. Its own growth signal is 78.0%, compared with a country-set average of 252.5%.

Deep research intelligence

Research Impact Score34
Open-access share80.0%
International collaboration62.3%
Research diversity signal86.4/100
Global percentile50.5th
Country percentile75.0th

Deep metrics extend the institution profile with compact work-level aggregates. International collaboration is the share of recent works with authors from more than one country. Open-access share comes from the five-year OpenAlex yearly series. The diversity signal summarizes the distribution of leading topic signals and should not be interpreted as an administrative measure of how many departments the institution operates.

Leading international research partner countries

United States · 67 worksSweden · 47 worksThailand · 44 worksSouth Korea · 32 worksJapan · 31 worksUnited Kingdom · 29 worksSingapore · 26 worksIndonesia · 25 worksVietnam · 21 worksAustralia · 19 worksChina · 19 worksFrance · 17 works

How to interpret this university profile

ITS Research Solution treats this page as research intelligence rather than a prestige label. The score (ITS Research Score v3) summarizes measurable research activity over the five most recent complete calendar years: research output, citations, h-index and i10-index, citation impact per work, publication growth and international collaboration. Size still matters, so the score should be interpreted together with the trend table and topic profile. The citation impact trend compares citations per paper with the world average for papers of the same years, 2024-2025 vs 2021-2022; +10% means the newer papers are cited 10% more, relative to the world, than the older ones, and it is shown only when each period has at least 50 papers. A smaller institution with strong momentum can therefore look different from a large institution with a much longer publication history.

Rankings are recalculated from the local analytical database after OpenAlex synchronization. The public page is indexable only when the institution has enough recent research activity, at least five active years in the available trend window, and multiple topic signals. This quality gate prevents empty or minimally populated institution records from becoming search-engine pages.

Data sources and verification

The institution identity is linked to the Research Organization Registry (ROR) through the ROR identifier supplied by OpenAlex. Research counts, citation totals, yearly activity, h-index, i10-index and topic signals come from OpenAlex. OpenAlex institution records are themselves grounded in ROR for canonical institution identity. Data can change as scholarly records, affiliations and citation links are corrected, so the page records the latest local synchronization time rather than presenting the figures as permanent.

  • OpenAlex institution ID: I86346663
  • ROR ID: 05rtvan68
  • Last synchronized: 2026-09-09 17:07:05

Frequently asked questions

What is the research score for Royal University of Phnom Penh?

The current ITS Research Performance Score is 50.8 out of 100 (ITS Research Score v3). It combines five complete years of research output and citations, h-index, i10-index, citation impact per work, publication growth and international collaboration.

How many research works are associated with Royal University of Phnom Penh?

The current local five-year window contains 625 works associated with the institution in OpenAlex.

Is this an official university ranking?

No. This is an independent ITS Research Solution research-performance analysis built from open scholarly metadata. It does not represent an official government or accreditation ranking.