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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2014/07/31  Number of Organizations 381, Number of records ALL: 2,170,302, Full text 1,368,040]

Content growth   
  
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Number of contents of latest month [2014/7] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 221,998 (16.2%)
Thesis or Dissertation 57,742 (4.2%)
Departmental Bulletin Paper 716,068 (52.3%)
Conference Paper 21,742 (1.6%)
Presentation 5,517 (0.4%)
Book 19,121 (1.4%)
Technical Report 13,424 (1.0%)
Research Paper 30,913 (2.3%)
Article 48,361 (3.5%)
Preprint 368 (0.0%)
Learning Material 3,961 (0.3%)
Data or Dataset 52,416 (3.8%)
Software 28 (0.0%)
Others 176,381 (12.9%)
SUM 1,368,040
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 63.0 %   
Version distribution Input% 71.3 % Full text
Language distribution Input% 93.7 % Full text
NDC distribution Input% 25.6 % Full text
Fileformat distribution Input% 61.2 % Full text