The QS World University Rankings are among the most important, most-referenced rankings. The QS ranking relies heavily on its academic survey, asking thousands of academics worldwide about the reputation of universities.
The Times Higher Education World University Rankings (or the THE Rankings for short) compile a wide range of statistics. Equal weight is put on teaching quality, research excellence, and research impact through citations (meaning how often a university’s research is referenced elsewhere).
The Academic Ranking of World Universities by Shanghai Jiao Tong University (often just Shanghai Ranking, or ARWU) focuses on research output and quality, for example measured by the number of published and cited scientific papers and the number of staff or alumni winning the Nobel Prize or Fields Medal.
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