SCImago Institutions Rankings (SIR): 2009 World Report; How is the NL score?

SCImago Institutions Rankings (SIR):  2009 World Report

SRG SCImago Reseach Group has published their SIR 2009 World Report. This report shows a ranking with more than 2000 of the best worldwide research institutions and organizations whose output surpass 100 scholarly publications during 2007. The ranking shows 5 indicators of institution research performance, stressing output (ordering criteria), collaboration and impact. Analyzed institutions are grouped into five research sectors: Government, Higher Education, Health, Corporate and Others. The resulting list includes institutions belonging to 84 countries from the five continents.
Publication and citation data used to build this report comes from Elsevier’s database Scopus. Current coverage includes data from more than 17000 research publications – mainly journals and proceedings – embracing the full range of scholarly research. Analyzed period goes from 2003 to 2007.
The construction of the current report involves the challenging task of identifying and normalizing the 2000 institutions through an overwhelming number of publications. The work, which is carried out by a mix of computer and human means, comprises the identification and gathering of institution’s affiliation variants under a unique identifiable form as well as the classification into research sectors.
Rank Indicators

Output; An institution’s publication output reveals its scientific outcomes and trends in terms of published documents in scholarly journals. Publication output values are affected by institution sizes and research profiles, among others factors. This indicator forms the basis for more complex metrics.  At co‐authored publications a score is assigned to each contributing institution through the author’s institutional address.

Cites per Document (CxD): This indicator shows the average scientific impact of an institution’s publication output in terms of citations per documents. Shown values express average citations received by the institution’s published documents over the whole period. The values are affected by institution research profiles.

International Collaboration (Int. Coll.): This value shows the institution’s output ratio that has been produced in collaboration with foreign institutions. The values are computed by analyzing the institution’s output whose affiliation includes more than one country address over the whole period.

Normalized SJR (Norm. SJR): It shows the journal average importance where an institution output is published. The indicator used to calculate this average is the SJR indicator ( A value larger than 1 means that “on average” the papers of an institution have been published on journals whose “importance” is above the average in its scientific field. Whereas a value smaller than 1 means that “on average” the papers of an institution have been published on journals whose “importance” is below the average in its scientific field.

Field Normalized Citation Score (Norm. Cit.): This indicator reveals the ratio between the average scientific impact of an institution and the world average impact of publications of the same time frame and subject area. It is computed using the methodology established by Karolinska Intitutet in Sweden where it is named “Item oriented field normalized citation score average” since the normalization of the citation values is done on an individual article level. The values are expressed in percentages and show the relationship of the institution’s average impact to the world average, which is 1, ‐‐i.e. a score of 0.8 means the institution is cited 20% below average and 1.3 means the institution is cited 30% above average.

The NL score: with special attention for Erasmus University

I will focus on the normalized citation only: Although Erasmus University is nr 6 in NL in output, EUR scores highest of all NL university institutions in the list (and 4th if we included other sectors included in the list) on citation impact.  This means Erasmus University is the university with the highest citation impact in the Netherlands. I think this is an amazing score for one of the smaller universities in NL. But compaerd to the overall SIR ranking, EUR is at position 130 on this criterium.

Rank Organization Sector Output C*D Int. coll. norm. SJR norm cit.
42 Universiteit Utrecht Higher educ. 23031 10,48 40,51 1,08 1,71
53 Universiteit van Amsterdam Higher educ. 20608 10,51 42,3 1,07 1,73
138 Universiteit Leiden Higher educ. 12090 10,55 48,97 1,08 1,52
197 Rijksuniversiteit Groningen Higher educ. 9649 8,32 43,43 1,06 1,47
227 Vrije Universiteit Amsterdam Higher educ. 8812 9,28 48,41 1,06 1,54
253 Erasmus Universiteit Rotterdam Higher educ. 8172 6 12,24 3 38,85 16 1,1 2 1,91 4
256 Technische Universiteit Delft Higher educ. 8156 5,27 41,6 0,93 1,56
319 Wageningen Universiteit Higher educ. 6843 7,86 52,71 1,06 1,38
323 Technische Universiteit Eindhoven Higher educ. 6823 6,01 44 0,98 1,7
340 Radboud Universiteit Nijmegen Higher educ. 6437 8,21 44,79 1,06 1,44
397 Academic Medical Center Health 5500 12,52 31,24 1,1 1,81
414 Universiteit Twente Higher educ. 5372 5,64 41,7 0,97 1,54
478 TNO Government 4672 7,82 35,81 1,01 1,42
565 Universiteit Maastricht Higher educ. 4021 9,02 42,15 1,09 1,65
787 University Medical Center St Radboud Health 2733 8,45 26,16 1,08 1,39
885 Netherlands Institute for Metals Research Government 2372 9,65 34,78 1,05 1,91
918 Nederlands Kanker Instituut/ALZ Health 2267 18,2 39,52 1,13 2,1
995 Philips Research Private 2002 6,55 42,61 0,87 1,97
1090 Dutch Polymer Institute Government 1735 10,58 35,39 1,07 2,04
1124 Universiteit van Tilburg Higher educ. 1633 4,64 47,52 1,02 1,49
1257 Academic Hospital Maastricht Health 1325 10,83 38,04 1,1 1,79
1292 KNAW Government 1264 11,32 48,66 1,1 1,78

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