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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2017/09/30  Number of Organizations 646, Number of records ALL: 2,689,201, Full text 2,042,220]

Content growth   
  
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Number of contents of latest month [2017/9] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 288,709 (14.1%)
Thesis or Dissertation 103,478 (5.1%)
Departmental Bulletin Paper 1,080,358 (52.9%)
Conference Paper 35,303 (1.7%)
Presentation 12,251 (0.6%)
Book 32,839 (1.6%)
Technical Report 43,313 (2.1%)
Research Paper 63,771 (3.1%)
Article 54,470 (2.7%)
Preprint 624 (0.0%)
Learning Material 4,578 (0.2%)
Data or Dataset 53,736 (2.6%)
Software 46 (0.0%)
Others 268,744 (13.2%)
SUM 2,042,220
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 75.9 %   
Version distribution Input% 65.1 % Full text
Language distribution Input% 93.6 % Full text
NDC distribution Input% 19.3 % Full text
Fileformat distribution Input% 46.9 % Full text