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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2014/10/31  Number of Organizations 399, Number of records ALL: 1,901,820, Full text 1,412,849]

Content growth   
  
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Number of contents of latest month [2014/10] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 224,570 (15.9%)
Thesis or Dissertation 60,434 (4.3%)
Departmental Bulletin Paper 751,243 (53.2%)
Conference Paper 22,081 (1.6%)
Presentation 5,573 (0.4%)
Book 19,261 (1.4%)
Technical Report 18,488 (1.3%)
Research Paper 31,578 (2.2%)
Article 49,913 (3.5%)
Preprint 374 (0.0%)
Learning Material 4,036 (0.3%)
Data or Dataset 52,418 (3.7%)
Software 28 (0.0%)
Others 172,852 (12.2%)
SUM 1,412,849
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 74.3 %   
Version distribution Input% 70.7 % Full text
Language distribution Input% 93.3 % Full text
NDC distribution Input% 25.0 % Full text
Fileformat distribution Input% 59.8 % Full text