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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2018/06/30  Number of Organizations 685, Number of records ALL: 2,859,650, Full text 2,168,277]

Content growth   
  
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Number of contents of latest month [2018/6] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 296,131 (13.7%)
Thesis or Dissertation 114,959 (5.3%)
Departmental Bulletin Paper 1,152,891 (53.2%)
Conference Paper 36,564 (1.7%)
Presentation 14,803 (0.7%)
Book 35,617 (1.6%)
Technical Report 46,480 (2.1%)
Research Paper 67,168 (3.1%)
Article 55,181 (2.5%)
Preprint 584 (0.0%)
Learning Material 5,228 (0.2%)
Data or Dataset 54,701 (2.5%)
Software 47 (0.0%)
Others 287,923 (13.3%)
SUM 2,168,277
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 75.8 %   
Version distribution Input% 66.5 % Full text
Language distribution Input% 95.5 % Full text
NDC distribution Input% 17.0 % Full text
Fileformat distribution Input% 45.5 % Full text