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ShanghaiRanking began to publish world university ranking by academic subjects in 2009. By introducing improved methodology, the Global Ranking of Academic Subjects (GRAS) was first published in 2017. The 2023 GRAS contains rankings of universities in 55 subjects across Natural Sciences,Enginering, Life Sciences, Medical Sciences, and Social Sciences. More than 1,900 out of 5,000 universities across 104 countries and regions are finally listed in the rankings. The GRAS rankings use a range of objective acadamic indicators and third-party data to measure the performance of world universities in respective subjects, including research output (Q1), research influence(CNCl), international collaboration (IC), research quality (Top), and international academic awards (Award). The index of international academic awards is based on Academic Excellence Survey (AES) conducted by ShanghaiRanking since 2017. Until April 2023, 1447 professors have participated in the survey. They are from 122 universities, and 21 countries/regions, covering 64 subjects. The results reveal 121 top journals in 43 subjects, 36 top awards in 29 subjects, and 31 top conferences for Computer Science & Engineering.
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