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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2016/11/30  Number of Organizations 578, Number of records ALL: 2,406,138, Full text 1,807,620]

Content growth   
  
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Number of contents of latest month [2016/11] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 269,141 (14.9%)
Thesis or Dissertation 89,540 (5.0%)
Departmental Bulletin Paper 953,335 (52.7%)
Conference Paper 32,591 (1.8%)
Presentation 9,567 (0.5%)
Book 22,069 (1.2%)
Technical Report 41,660 (2.3%)
Research Paper 58,757 (3.3%)
Article 53,752 (3.0%)
Preprint 499 (0.0%)
Learning Material 4,344 (0.2%)
Data or Dataset 53,547 (3.0%)
Software 30 (0.0%)
Others 218,788 (12.1%)
SUM 1,807,620
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 75.1 %   
Version distribution Input% 66.9 % Full text
Language distribution Input% 92.7 % Full text
NDC distribution Input% 21.1 % Full text
Fileformat distribution Input% 52.6 % Full text