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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2015/07/31  Number of Organizations 492, Number of records ALL: 2,108,988, Full text 1,554,928]

Content growth   
  
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Number of contents of latest month [2015/7] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 237,536 (15.3%)
Thesis or Dissertation 70,873 (4.6%)
Departmental Bulletin Paper 842,991 (54.2%)
Conference Paper 25,069 (1.6%)
Presentation 6,256 (0.4%)
Book 20,228 (1.3%)
Technical Report 22,776 (1.5%)
Research Paper 34,576 (2.2%)
Article 51,424 (3.3%)
Preprint 385 (0.0%)
Learning Material 4,194 (0.3%)
Data or Dataset 52,447 (3.4%)
Software 29 (0.0%)
Others 186,144 (12.0%)
SUM 1,554,928
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 73.7 %   
Version distribution Input% 68.6 % Full text
Language distribution Input% 92.6 % Full text
NDC distribution Input% 23.0 % Full text
Fileformat distribution Input% 56.4 % Full text