# Dimensions (database)

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{{short description|Bibliographic database}}
{{Use dmy dates|date=October 2021}}
{{infobox bibliographic database
| title = Dimensions
| image = File:Logo of Dimensions database.png
| producer = [Digital Science](/source/Digital_Science)
| country = international developers
| cost = Free and Subscription
| disciplines= Life sciences; social sciences; physical sciences; health sciences 
| depth = 106 million publications with over 1.2 billion citations openly accessible at 
| geospatial = Worldwide
| web = [https://app.dimensions.ai app.dimensions.ai]
}}

'''Dimensions''' is a [database](/source/database) of [abstracts and citations](/source/abstract_and_citation_database) and of  [research grant](/source/research_grant)s, which links grants to resulting publications, [clinical trial](/source/clinical_trial)s and [patent](/source/patent)s. Dimensions is part of [Digital Science](/source/Digital_Science) (or Digital Science & Research Solutions Ltd) - a technology company headquartered [London](/source/London), [United Kingdom](/source/United_Kingdom). The company focuses on strategic investments into [startup companies](/source/startup_companies), that support the research lifecycle.

Dimensions was launched in 2018.<ref>{{Cite web |last=Schonfeld |first=Roger C. |date=2018-01-15 |title=A New Citation Database Launches Today: Dimensions |url=https://scholarlykitchen.sspnet.org/2018/01/15/new-citation-database-dimensions/ |access-date=2023-08-15 |website=The Scholarly Kitchen |language=en-US}}</ref> Some of its data is accessible free-of-charge at app.dimensions.ai.

== Coverage ==
As of July 2023, Dimensions.ai covers nearly 140 million publications with over 1.8 billion citations.<ref name="auto12"/>

Two studies published in 2021 compared Dimensions with its subscription-based commercial competitors [Scopus](/source/Scopus) and [Web of Science](/source/Web_of_Science). The first study concluded based on 2010-2018 data, that Dimensions indexes three times more journals that Web of Science (excluding its Emerging Sources Citation Index), and almost twice as many as Scopus.<ref name="auto">Singh, V. K., P. Singh, M. Karmakar, J. Leta and P. Mayr (2021). "The journal coverage of Web of Science, Scopus and Dimensions: A comparative analysis." Scientometrics 126(6): 5113-5142</ref> The other study attempted to match citations in these three databases as well as [Google Scholar](/source/Google_Scholar) and [Microsoft Academic Graph](/source/Microsoft_Academic_Graph), and found that Scopus and Dimensions are on par in terms of coverage, but smaller than Microsoft Academic Graph and Google Scholar.<ref name="auto12">Martín-Martín, A., M. Thelwall, E. Orduna-Malea and E. Delgado López-Cózar (2021). "Google Scholar, Microsoft Academic, Scopus, Dimensions, Web of Science, and OpenCitations’ COCI: a multidisciplinary comparison of coverage via citations." Scientometrics 126(1): 871-906</ref>

== References ==
{{Reflist}}

== External links ==
* {{Official website}}

Category:Bibliographic databases and indexes
Category:Scholarly search services
Category:Online databases
Category:Citation indices

{{database-stub}}

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Adapted from the Wikipedia article [Dimensions (database)](https://en.wikipedia.org/wiki/Dimensions_(database)) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Dimensions_(database)?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.