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HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
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[2016/01/31  Number of Organizations 519, Number of records ALL: 2,169,753, Full text 1,635,083]

Content growth   
  
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Number of contents of latest month [2016/1] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 248,117 (15.2%)
Thesis or Dissertation 78,218 (4.8%)
Departmental Bulletin Paper 880,700 (53.9%)
Conference Paper 30,023 (1.8%)
Presentation 6,862 (0.4%)
Book 20,718 (1.3%)
Technical Report 29,461 (1.8%)
Research Paper 36,035 (2.2%)
Article 50,889 (3.1%)
Preprint 379 (0.0%)
Learning Material 4,174 (0.3%)
Data or Dataset 53,534 (3.3%)
Software 29 (0.0%)
Others 195,944 (12.0%)
SUM 1,635,083
Number of contents of latest month
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Analysis of content   

Ratio of full text ALL 75.4 %   
Version distribution Input% 69.0 % Full text
Language distribution Input% 93.1 % Full text
NDC distribution Input% 22.2 % Full text
Fileformat distribution Input% 55.1 % Full text