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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2017/10/31  Number of Organizations 652, Number of records ALL: 2,709,960, Full text 2,062,837]

Content growth   
  
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Number of contents of latest month [2017/10] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 290,855 (14.1%)
Thesis or Dissertation 105,362 (5.1%)
Departmental Bulletin Paper 1,091,170 (52.9%)
Conference Paper 35,867 (1.7%)
Presentation 13,720 (0.7%)
Book 33,859 (1.6%)
Technical Report 43,476 (2.1%)
Research Paper 64,537 (3.1%)
Article 54,617 (2.6%)
Preprint 571 (0.0%)
Learning Material 4,588 (0.2%)
Data or Dataset 53,737 (2.6%)
Software 46 (0.0%)
Others 270,432 (13.1%)
SUM 2,062,837
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 76.1 %   
Version distribution Input% 65.2 % Full text
Language distribution Input% 93.6 % Full text
NDC distribution Input% 19.1 % Full text
Fileformat distribution Input% 46.7 % Full text