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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2018/08/31  Number of Organizations 685, Number of records ALL: 2,888,768, Full text 2,191,708]

Content growth   
  
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Number of contents of latest month [2018/8] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 299,592 (13.7%)
Thesis or Dissertation 117,234 (5.3%)
Departmental Bulletin Paper 1,165,951 (53.2%)
Conference Paper 36,686 (1.7%)
Presentation 14,909 (0.7%)
Book 35,469 (1.6%)
Technical Report 46,861 (2.1%)
Research Paper 68,228 (3.1%)
Article 55,425 (2.5%)
Preprint 586 (0.0%)
Learning Material 5,238 (0.2%)
Data or Dataset 54,710 (2.5%)
Software 47 (0.0%)
Others 290,772 (13.3%)
SUM 2,191,708
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 75.9 %   
Version distribution Input% 66.4 % Full text
Language distribution Input% 95.5 % Full text
NDC distribution Input% 16.8 % Full text
Fileformat distribution Input% 44.8 % Full text