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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2017/05/31  Number of Organizations 621, Number of records ALL: 2,612,040, Full text 1,984,896]

Content growth   
  
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Number of contents of latest month [2017/5] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 280,529 (14.1%)
Thesis or Dissertation 98,825 (5.0%)
Departmental Bulletin Paper 1,051,920 (53.0%)
Conference Paper 34,815 (1.8%)
Presentation 11,000 (0.6%)
Book 32,263 (1.6%)
Technical Report 42,760 (2.2%)
Research Paper 61,140 (3.1%)
Article 55,765 (2.8%)
Preprint 617 (0.0%)
Learning Material 4,552 (0.2%)
Data or Dataset 53,595 (2.7%)
Software 46 (0.0%)
Others 257,069 (13.0%)
SUM 1,984,896
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 76.0 %   
Version distribution Input% 65.5 % Full text
Language distribution Input% 93.2 % Full text
NDC distribution Input% 19.6 % Full text
Fileformat distribution Input% 47.8 % Full text