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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2018/10/31  Number of Organizations 690, Number of records ALL: 2,911,442, Full text 2,207,605]

Content growth   
  
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Number of contents of latest month [2018/10] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 303,388 (13.7%)
Thesis or Dissertation 119,453 (5.4%)
Departmental Bulletin Paper 1,173,067 (53.1%)
Conference Paper 37,003 (1.7%)
Presentation 15,014 (0.7%)
Book 36,444 (1.7%)
Technical Report 47,232 (2.1%)
Research Paper 69,151 (3.1%)
Article 54,335 (2.5%)
Preprint 593 (0.0%)
Learning Material 5,271 (0.2%)
Data or Dataset 54,743 (2.5%)
Software 47 (0.0%)
Others 291,864 (13.2%)
SUM 2,207,605
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 75.8 %   
Version distribution Input% 66.6 % Full text
Language distribution Input% 96.3 % Full text
NDC distribution Input% 16.7 % Full text
Fileformat distribution Input% 44.4 % Full text