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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2016/04/30  Number of Organizations 543, Number of records ALL: 2,244,905, Full text 1,701,421]

Content growth   
  
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Number of contents of latest month [2016/4] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 255,867 (15.0%)
Thesis or Dissertation 80,405 (4.7%)
Departmental Bulletin Paper 908,616 (53.4%)
Conference Paper 30,758 (1.8%)
Presentation 8,403 (0.5%)
Book 21,394 (1.3%)
Technical Report 29,816 (1.8%)
Research Paper 53,624 (3.2%)
Article 52,350 (3.1%)
Preprint 407 (0.0%)
Learning Material 4,205 (0.2%)
Data or Dataset 53,536 (3.1%)
Software 30 (0.0%)
Others 202,010 (11.9%)
SUM 1,701,421
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 75.8 %   
Version distribution Input% 67.9 % Full text
Language distribution Input% 92.2 % Full text
NDC distribution Input% 21.9 % Full text
Fileformat distribution Input% 54.8 % Full text