Cadmus climbing the Ranking Web of Repositories
The 15th edition of the Ranking Web of Repositories released in July 2014 was just published.
In the international ranking of repositories which releases a new ranking situation twice a year (January and July), Cadmus, the EUI Research Repository, is again well positioned: as 2nd in Italy, 79th in Europe and 121st among the institutional repositories over the world.
Below you can find a table illustrating Cadmus higher ranking over time, and I am pleased to that the increase in ranking is stable.
Ranking Position : Cadmus January 2011 July 2011 January 2012 July 2012 January 2013 July 2013 January 2014 July 2014
Published figures are RANKS (lower is better), intended for showing individual performances, but they are not the values used in the calculations.
More information: http://repositories.webometrics.info/en
The indicators and weighting are described below:
• Size: Total number of web pages by Google, excluding rich files. Weight: 10%
• Visibility. Obtained from combining the square root of the external inlinks and the number of their referred webdomains according to the two major providers of link data: Majestic SEO and ahrefs. Several colleagues provided evidence that top sources of links can be distorting the correct ranking of many institutions so specific measures were warranted. So, we decided accordingly to change the methodology for obtaining the visibility indicator, excluding from calculations the top 10 citing domains and the corresponding backlinks, maintaining the previous formula for the rest of the link data. The number of 10 is an arbitrary decision that can be reviewed if it is needed in the future. The value chosen is the maximum between the normalized products of both. Weight: 25%
• Altmetrics. The following sources of mentions are now included in the Visibility indicator: Academia, Facebook, LinkedIn, Mendeley, ResearchGate, Slideshare, Twitter, Wikipedia (all editions), Wikipedia (English edition) & YouTube. Weight: 25% (combined with Visibility in the tables)
• Rich files: The sum of the following file types(by Google): pdf, doc+docx and ppt+pptx (10%).
• Scholar: Four variables obtained from Google Scholar are combined: number of items, items published between 2009-2013, pdf files (with proper suffix) and pdf files dated between 2009-2013. Weight: 30%.
In the table below illustrates the three the top Italian repositories:
It is worthwhile mentioning that the three ‘new’ networks – ResearchGate, Academia and Mendeley – are part of this edition’s ranking under ‘Portals’. They were included because authors are depositing their papers on websites instead of their own institutional repositories. “The limited added value provided by the current generation of repository software and the inability of library managers and repository webmasters in improving profiling and other customization options are leading to this unfortunate emerging trend.” http://repositories.webometrics.info/en/top_portals
Tool to measure level of repository visibility and indexing in search engines: http://dspacecheck-atmire.rhcloud.com/
Blog post on Previous Ranking Position: https://blogs.eui.eu/library/cadmus-1st-rank-in-italy.html