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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2017/07/31  Number of Organizations 643, Number of records ALL: 2,665,163, Full text 2,027,348]

Content growth   
  
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Number of contents of latest month [2017/7] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 283,611 (14.0%)
Thesis or Dissertation 102,277 (5.0%)
Departmental Bulletin Paper 1,075,284 (53.0%)
Conference Paper 35,153 (1.7%)
Presentation 11,605 (0.6%)
Book 32,572 (1.6%)
Technical Report 43,060 (2.1%)
Research Paper 62,929 (3.1%)
Article 55,717 (2.7%)
Preprint 619 (0.0%)
Learning Material 4,562 (0.2%)
Data or Dataset 53,733 (2.7%)
Software 46 (0.0%)
Others 266,180 (13.1%)
SUM 2,027,348
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 76.1 %   
Version distribution Input% 65.1 % Full text
Language distribution Input% 93.6 % Full text
NDC distribution Input% 19.3 % Full text
Fileformat distribution Input% 47.0 % Full text