CITATION RANKINGS -- From the ISI Essential Science Indicators Home page, you can access the four Citation Rankings options, which enable you to compare the rankings of numerous scientists, institutions, countries, and journals in 22 scientific fields.

There are four groupings of citation ranking data:

Scientist Rankings - Citation counts are a form of peer recognition and generally reflect the dependence of the scientific community on the work of individual scientists. It could be argued that highly cited scientists form the essential core of scientific community. Many highly cited scientists have also received peer recognition in the form of honorific awards.

Institution Rankings - Scientific research is performed within the context of an institution, and thus the recognition afforded the individual researchers affiliated with that institution is reflected in the prestige and reputation of the institution as a whole. By aggregating publications and citations at the institutional level we can measure the institutional output and prestige attributable to the affiliated researchers.

Country Rankings - Countries vary in their level of scientific effort as measured by publication and citation activity. The distribution of effort is uneven, and dominated by the developed countries. The level of activity is roughly correlated with national GNP or other measures of economic output. Comparing countries on a citations per paper basis can help correct for size (output) differences.

Journal Rankings - Journals vary widely in prestige, influence, and impact, and this is reflected in the citation counts to a journal. ISI Essential Science Indicators provides a long-term citation ranking for journals. A comparison with short-term citation behavior can be made by consulting the ISI Journal Citation Reports® product published by ISI.

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