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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2018/11/30  Number of Organizations 691, Number of records ALL: 2,915,982, Full text 2,210,491]

Content growth   
  
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Number of contents of latest month [2018/11] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 302,373 (13.7%)
Thesis or Dissertation 120,681 (5.5%)
Departmental Bulletin Paper 1,175,286 (53.2%)
Conference Paper 37,189 (1.7%)
Presentation 15,398 (0.7%)
Book 35,999 (1.6%)
Technical Report 47,276 (2.1%)
Research Paper 69,123 (3.1%)
Article 54,439 (2.5%)
Preprint 594 (0.0%)
Learning Material 4,900 (0.2%)
Data or Dataset 54,747 (2.5%)
Software 47 (0.0%)
Others 292,439 (13.2%)
SUM 2,210,491
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% 44.5 % Full text