[Irtalk] FW: [Dspace-general] DSpace trends in Webometrics Institutional Repository Ranking

Tue Feb 9 18:29:48 SAST 2010

From: Bram Luyten [mailto:bram at mire.be]
Sent: 09 February 2010 14:48
To: dspace-general at lists.sourceforge.net
Subject: [Dspace-general] DSpace trends in Webometrics Institutional Repository Ranking

Disclaimer: this post was originally formatted as a Facebook Note, so the version below might not contain all the images, layout, ... See the original version here: http://bit.ly/cisJUN

At the end of january, the CSIC (Spain) published it's Top 400 Institutional Repository Ranking<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=ca79f1c9802b933a398539be6acd477b&url=http%3A%2F%2Frepositories.webometrics.info%2Ftop400_rep_inst.asp>

A short introduction about the Webometrics Repository Ranking initiative:

The aim of the Ranking is to support Open Access initiatives and therefore the free access to scientific publications in an electronic form and to other academic material. The web indicators are used here to measure the global visibility and impact of the scientific repositories.Read a full description of the methodology<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=805a1b6ebe036cc734bbd7e31a0b78ce&url=http%3A%2F%2Frepositories.webometrics.info%2Fmethodology_rep.html>

New in the January 2010 edition is that they are also counting spreadsheets (.xls) documents as full texts. Among other factors, this causes quite a shake in the ranking.

Thanks to some fine work of Claudia Jürgen in the past<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=3d037f76ae153ac3789bff8737491053&url=https%3A%2F%2Feldorado.tu-dortmund.de%2Fhandle%2F2003%2F26032>, identifying repository platforms for the listed ones, and the work I did on the July 2009 ranking, we compared this new ranking to the old one.

DSpace was able to stand it's ground, with 45 repositories listed in the top 100, compared to 43 spots in the January 2009 ranking.
We're very proud to see @mire clients, and their repository projects, listed here. Click them for more information on the project.

Here are DSpace repositories for which the rank improved:

+80 EU Universitat Dortmund Eldorado Institutionellen Repositorium
+48 NA SUNY Dspace
+45 NA Cornell University eCommons
+44 AU Australian National University Dspace
+37 NA AMNH Scientific Publications
+36 NA Oregon State University Scholarsarchive
+33 EU University of Edinburgh Research Archive
+32 AS Waseda University Dspace
+27 AU University of Adelaide Digital Library
+23 NA University of Toronto T Space
+21 AS Hokkaido University Collection of Scholarly and Academic Papers
+19 EU INIST I-Revues<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=72d792e9d455c4b4f9f68de9b2a54bab&url=http%3A%2F%2Fatmire.com%2Finist.php>
+18 AS Nagasaki University Academic Output
+13 NA University of Michigan Deep Blue
+13 EU Leiden University Digital Repository
+13 IBC Biblioteca Digital Jurídica do Superior Tribunal de Justica
+12 NA Rice University Scholarship
+11 EU Digital CSIC<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=2b46ef135b94e77374adee1c7143536d&url=http%3A%2F%2Fatmire.com%2Fcsic.php>
+10 IBC Universidad de los Andes Repositorio Institucional
+9 NA Caltech Authors
+9 EU Katholieke Universiteit Leuven Lirias Repository<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=a62329a875503481e1d00e92508704d8&url=http%3A%2F%2Fatmire.com%2Flirias.php>
+6 EU Diposit de la Recerca de Catalunya
+3 NA Jet Propulsion Laboratory Beacon Espace
+1 NA Ohio State University Knowledge Bank

We found only one DSpace repository, exactly on the same spot as last time, The University of Oregon Scholar's Bank stays 29th in rank.

Unfortunately, there were some Instances who dropped in the ranking:

-59 NA Boston University Digital Research Archive
-43 EU Malmo University Electronic Publishing
-41 AS Indian Statistical Institute Digital Library
-24 EU Research in Atmosphere, Cryosphere, Hydrosphere and Solid Earth Fields
-24 NA University of Calgary Dspace
-23 EU National Library of Finland Dspace Services
-20 EU Universitat Politécnica de Catalunya Upcommons
-18 AS Nagoya University Repository
-16 EU Cambridge University Dspace
-14 EU Tartu University Library Dspace
-12 AS Kyushu University Institutional Repository
-11 EU University of Bergen Open Research Archive
-9 EU Goteborg University Open Archive
-9 NA University of New México Institutional Repository
-8 EU Igitur Archive Universiteit Utrecht<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=f25220726ae3e58060ed05587da326f8&url=http%3A%2F%2Fatmire.com%2Futrecht.php>
-7 AS Kyoto University Research Information Repository
-4 AS University of Tokyo Repository
-4 NA University of Wisconsin Digital Repository
-3 NA Georgia Tech's Institutional Repository
-2 EU Universidade do Minho Repositorium
-1 NA MIT Dspace
-1 EU University of Helsinki Ethesis

We were able to identify these institutions who weren't in the top 100 before, but are now. For most of them, we only have the position of January 2009, and not the one from July 2009. (position - institution name - positions won):

53 National Taiwan University Repository - New entrance in the ranking
59 Kanazawa University for Academic Resources - 112 since Jan 2009
63 Ochanomizu University Web Library Institutional Repository - 102 since Jan 2009
74 University of Sydney E-Scholarship - 45 since Jan 2009
77 University of British Columbia CIRCLE - New entrance in the ranking<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=68d3218b81d20a75e963c16649d08f2b&url=http%3A%2F%2Fatmire.com%2Fubc.php>
79 Simon Fraser University Institutional Repository - 37 since Jan 2009
80 National Tsing Hua University Repository - 180 since Jan 2009
86 Rochester Institute of Technology Digital Media Library - 28 since Jan 2009
91 University of Kansas Scholarworks - 46 since Jan 2009
96 Université de Montreal Depot Institutionnel Numerique - 74 since Jan 2009

It would be great to hear from the top climbers, if they made certain customizations or improved their repository in a certain way, to explain the improvement in rank. At this point it's very hard to identify whether the change in the algorithm is fully responsible for the changes, or whether best practices at institutions could explain the changes.

One mystery about the January 2010 ranking is the disappearance of the AgEcon Search repository. Ranked 6th in July 2009, the repository was removed from the list. Because it's still in the non-institutional list, it might be that the CSIC authors didn't consider AgEcon search to be an "institutional" repository.

To make a further analysis for your institution, it could be useful to compare the 4 different metrics between July & January:

Size (S). Number of pages recovered from the four largest engines: Google, Yahoo, Live Search and Exalead.
Visibility (V). The total number of unique external links received (inlinks) by a site can be only confidently obtained from Yahoo Search and Exalead.
Rich Files (R). Only the number of text files in Acrobat format (.pdf) and .xls files extracted from Google and Yahoo are considered.
Scholar (Sc). Using Google Scholar database we calculate the mean of the normalised total number of papers and those (recent papers) published between 2001 and 2008.

To conclude, all DSpace instances that are represented in the Top 100.
(Current Ranking - Difference between Jan 2009 and July 2009 - Difference between July 2009 and Jan 2010)

06 -03 -01 NA MIT Dspace
07 -13 +13 NA University of Michigan Deep Blue
11 +10 -08 EU Igitur Archive Universiteit Utrecht<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=f25220726ae3e58060ed05587da326f8&url=http%3A%2F%2Fatmire.com%2Futrecht.php>
16 -37 +36 NA Oregon State University Scholarsarchive
17 +17 +19 EU INIST I-Revues<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=72d792e9d455c4b4f9f68de9b2a54bab&url=http%3A%2F%2Fatmire.com%2Finist.php>
18 +11 -02 EU Universidade do Minho Repositorium
23 -13 +23 NA University of Toronto T Space
24 +12 -20 EU Universitat Politécnica de Catalunya Upcommons
25 +17 -07 AS Kyoto University Research Information Repository
26 +04 +01 NA Ohio State University Knowledge Bank
28 +00 -03 NA Georgia Tech's Institutional Repository
29 -24 +00 NA University of Oregon Scholars' Bank
32 -16 +10 IBC Universidad de los Andes Repositorio Institucional
33 +02 -23 EU National Library of Finland Dspace Services
34 -15 +13 EU Leiden University Digital Repository
35 -05 -09 EU Goteborg University Open Archive
36 +30 +13 IBC Biblioteca Digital Jurídica do Superior Tribunal de Justica
38 +02 +45 NA Cornell University eCommons
43 +09 +11 EU Digital CSIC<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=2b46ef135b94e77374adee1c7143536d&url=http%3A%2F%2Fatmire.com%2Fcsic.php>
44 +02 -12 AS Kyushu University Institutional Repository
45 -06 -01 EU University of Helsinki Ethesis
48 -16 +09 NA Caltech Authors
52 -47 +44 AU Australian National University Dspace
53 National Taiwan University Repository
54 -6 +32 AS Waseda University Dspace
55 -18 +3 NA Jet Propulsion Laboratory Beacon Espace
59 AS Kanazawa University Repository for Academic Resources
60 +39 -4 AS University of Tokyo Repository
63 AS Ochanomizu University Web Library Institutional Repository
64 +40 +18 AS Nagasaki University Academic Output
68 -37 +27 AU University of Adelaide Digital Library
70 -50 +48 NA SUNY Dspace
73 +49 -18 AS Nagoya University Repository
74 -74 AU University of Sydney E-Scholarship
77 CA University of British Columbia CIRCLE<http://www.facebook.com/note_redirect.php?note_id=294809723767&h=68d3218b81d20a75e963c16649d08f2b&url=http%3A%2F%2Fatmire.com%2Fubc.php>
78 -19 -11 EU University of Bergen Open Research Archive
79 -79 NA Simon Fraser University Institutional Repository
80 AS National Tsing Hua University Repository
85 -27 +06 EU Diposit de la Recerca de Catalunya
86 -86 NA Rochester Institute of Technology Digital Media Library
87 +41 +12 NA Rice University Scholarship
91 -91 NA University of Kansas Scholarworks
93 -10 -14 EU Tartu University Library Dspace
96 NA Université de Montreal Depot Institutionnel Numerique
99 -11 +21 AS Hokkaido University Collection of Scholarly and Academic Papers

If you think we made a mistake, or if you want to discuss this ranking, please do, this could be interesting.

@mire - http://www.atmire.com

Technologielaan 9 - 3001 Heverlee - Belgium
533 2nd Street - Encinitas, CA 92024 - USA

http://www.togather.eu - Before getting together, get Tog at ther
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.lib.sun.ac.za/pipermail/irtalk/attachments/20100209/2a24c655/attachment-0002.htm 
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: ATT00001..txt
Url: http://lists.lib.sun.ac.za/pipermail/irtalk/attachments/20100209/2a24c655/attachment-0004.txt 
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: ATT00002..txt
Url: http://lists.lib.sun.ac.za/pipermail/irtalk/attachments/20100209/2a24c655/attachment-0005.txt 