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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2017/01/31  Number of Organizations 590, Number of records ALL: 2,441,849, Full text 1,858,826]

Content growth   
  
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Number of contents of latest month [2017/1] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 272,601 (14.7%)
Thesis or Dissertation 92,829 (5.0%)
Departmental Bulletin Paper 989,192 (53.2%)
Conference Paper 33,277 (1.8%)
Presentation 10,136 (0.5%)
Book 22,825 (1.2%)
Technical Report 42,198 (2.3%)
Research Paper 59,635 (3.2%)
Article 54,833 (2.9%)
Preprint 571 (0.0%)
Learning Material 4,318 (0.2%)
Data or Dataset 53,546 (2.9%)
Software 31 (0.0%)
Others 222,834 (12.0%)
SUM 1,858,826
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 76.1 %   
Version distribution Input% 67.6 % Full text
Language distribution Input% 93.3 % Full text
NDC distribution Input% 20.6 % Full text
Fileformat distribution Input% 51.8 % Full text