About Us    Help    News
    Contact Us    Japanese
Search by "Organization name" etc. : 
HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
more
[2018/01/31  Number of Organizations 660, Number of records ALL: 2,744,995, Full text 2,084,668]

Content growth   
  
Select Fiscal year
Select ALL or Full text
  
Number of contents of latest month [2018/1] (ALL)
Past number of contents (ALL)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 462,549 (16.9%)
Thesis or Dissertation 225,334 (8.2%)
Departmental Bulletin Paper 1,244,423 (45.3%)
Conference Paper 146,040 (5.3%)
Presentation 53,851 (2.0%)
Book 48,118 (1.8%)
Technical Report 50,785 (1.9%)
Research Paper 73,403 (2.7%)
Article 78,120 (2.8%)
Preprint 623 (0.0%)
Learning Material 10,104 (0.4%)
Data or Dataset 54,350 (2.0%)
Software 56 (0.0%)
Others 297,239 (10.8%)
SUM 2,744,995
Number of contents of latest month
Detailed figure is displayed in another window by clicking.

Analysis of content   

Ratio of full text ALL 75.9 %   
Version distribution Input% 58.5 % ALL
Language distribution Input% 93.5 % ALL
NDC distribution Input% 15.7 % ALL
Fileformat distribution Input% 36.3 % ALL