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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2017/03/31  Number of Organizations 605, Number of records ALL: 2,499,523, Full text 1,900,721]

Content growth   
  
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Number of contents of latest month [2017/3] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 276,532 (14.5%)
Thesis or Dissertation 95,008 (5.0%)
Departmental Bulletin Paper 1,007,879 (53.0%)
Conference Paper 34,067 (1.8%)
Presentation 10,812 (0.6%)
Book 23,150 (1.2%)
Technical Report 42,369 (2.2%)
Research Paper 60,129 (3.2%)
Article 55,713 (2.9%)
Preprint 610 (0.0%)
Learning Material 4,339 (0.2%)
Data or Dataset 53,594 (2.8%)
Software 45 (0.0%)
Others 236,474 (12.4%)
SUM 1,900,721
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 76.0 %   
Version distribution Input% 66.7 % Full text
Language distribution Input% 93.1 % Full text
NDC distribution Input% 20.2 % Full text
Fileformat distribution Input% 49.8 % Full text