National Institute of Informatics

The National Institute of Informatics is a Japanese research institute located in Chiyoda, Tokyo, Japan. NII was established in April 2000 for the purpose of advancing the study of informatics. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for National Institute of Informatics, Japan, covering academic research published from 2000 to 2024. Read More.

Open Access Percentage

37%

Total
Publications

8.8K

Total Open
Publications

3.2K

Total
Citations

160K

Open Access
Percentage

37%

Total
Publications

8.8K

Total Open
Publications

3.2K

Total
Citations

160K

Wikipedia

Website

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Breakdown

Publisher Open

17%

Both

Other Platform Open

Closed

68%

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 27%

542

Hybrid 29%

582

No Guarantees 44%

871

Other Platform Open

Preprint 50%

740

Institution 41%

596

Domain 14%

206

Other Internet 7%

109

Public 3%

Other Platform Locations

Name	Platform Type	Publications
arXiv	Preprint	737
Le Centre pour la Communication Scientifique Directe - HAL - Diderot	Institution	211
PubMed Central	Domain	205
DOI	Other Internet	82
DANS - Data Archiving and Networked Services	Institution	32
Figshare	Public	29
Unknown Repository	Other Internet	24
Europe PMC	Domain	24
University of Edinburgh - Edinburgh Research Explorer	Institution	23
Aalto University - Aaltodoc	Institution	22

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Data updated 18 August 2025