The new Excellence Indicator in the World Report of the SCImago Institutions Rankings 2011

The SCImago Institutions Rankings (SIR) World Reports publish annually an international ranking of more than 2000 research institutions and organizations. The reports list indicator values based on publication and citation data from Scopus (Elsevier) for research-devoted institutions with at least 100 papers published within one year. The second edition published in 2010 included for each institution the following four indicators: (1) publication output, (2) output ratio which has been produced in collaboration with foreign institutions (international collaboration), (3) ratio between the average scientific impact of an institution and the world average impact of papers published in the same time period and subject area (normalized impact), and (4) ratio of papers which an institution publishes in the most influential scholarly journals of the world (high quality publications).