Open Access statistics for University of California System, United States, covering academic research published from 2000 to 2023. Read More.
Open Access Percentage
55%
Total
Publications
1.2M
Total Open
Publications
673K
Total
Citations
61M
Open Access
Percentage
55%
Total
Publications
1.2M
Total Open
Publications
673K
Total
Citations
61M
Breakdown
Publisher Open
14%
Both
23%
Other Platform Open
18%
Closed
45%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 29%
129K
Hybrid 31%
141K
No Guarantees 40%
180K
Other Platform Open
Domain 58%
295K
Institution 35%
178K
Other Internet 27%
139K
Preprint 22%
111K
Public 6%
31K
Other Platform Locations
Name | Platform Type | Publications |
---|---|---|
PubMed Central | Domain | 290K |
Europe PMC | Domain | 182K |
California Digital Library - eScholarship | Other Internet | 80K |
University of California - eScholarship University of California | Institution | 78K |
arXiv | Preprint | 75K |
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI | Institution | 30K |
Semantic Scholar | Public | 23K |
DOI | Other Internet | 23K |
CiteSeer X | Other Internet | 22K |
bioRxiv | Preprint | 21K |