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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2018/01/31  Number of Organizations 660, Number of records ALL: 2,744,995, Full text 2,084,668]

Content growth   
  
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Number of contents of latest month [2018/1] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 284,494 (13.6%)
Thesis or Dissertation 108,230 (5.2%)
Departmental Bulletin Paper 1,108,462 (53.2%)
Conference Paper 34,832 (1.7%)
Presentation 14,393 (0.7%)
Book 34,193 (1.6%)
Technical Report 44,326 (2.1%)
Research Paper 65,978 (3.2%)
Article 54,865 (2.6%)
Preprint 573 (0.0%)
Learning Material 4,609 (0.2%)
Data or Dataset 53,773 (2.6%)
Software 47 (0.0%)
Others 275,893 (13.2%)
SUM 2,084,668
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 75.9 %   
Version distribution Input% 65.7 % Full text
Language distribution Input% 93.6 % Full text
NDC distribution Input% 19.0 % Full text
Fileformat distribution Input% 44.8 % Full text