About Us    Help    News
    Contact Us    Japanese
Search by "Organization name" etc. : 
HOME  BROWSE We are providing statistics of Japanese Institutional Repositories DataBase.
more
[2015/03/31  Number of Organizations 457, Number of records ALL: 2,055,965, Full text 1,497,966]

Content growth   
  
Select Fiscal year
Select ALL or Full text
  
Number of contents of latest month [2015/3] (Full text)
Past number of contents (Full text)

Content growth

Breakdown of content by resource type (ratio)

Journal Article 230,324 (15.4%)
Thesis or Dissertation 65,131 (4.3%)
Departmental Bulletin Paper 809,824 (54.1%)
Conference Paper 23,562 (1.6%)
Presentation 6,188 (0.4%)
Book 19,947 (1.3%)
Technical Report 22,323 (1.5%)
Research Paper 32,764 (2.2%)
Article 50,396 (3.4%)
Preprint 373 (0.0%)
Learning Material 4,191 (0.3%)
Data or Dataset 52,421 (3.5%)
Software 29 (0.0%)
Others 180,493 (12.0%)
SUM 1,497,966
Number of contents of latest month
Detailed figure is displayed in another window by clicking.

Analysis of content   

Ratio of full text ALL 72.9 %   
Version distribution Input% 69.4 % Full text
Language distribution Input% 92.9 % Full text
NDC distribution Input% 23.5 % Full text
Fileformat distribution Input% 57.2 % Full text