Generally speaking, ESI ranking is an authoritative ranking in the world, mainly based on the academic level of universities or institutions in the world. Generally speaking, if you can enter the world-class discipline of ESI 1‰, you can call it the world-class discipline. At present, education departments at all levels in China have paid more and more attention to ESI indicators in recent years.

Many universities also take the number of disciplines before entering ESI 1‰ as one of their development goals, among which ESI is one of the most important references in the evaluation of "double first-class" in China. ESI ranking is a comprehensive index of highly cited papers, which is used to evaluate the scientific research influence of countries, fields, institutions and scholars around the world.

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ESI, whose full name is Essential Science Indicators, is a tool for evaluating scientific research performance launched by Thomson Reuters. The basic idea is to evaluate the research performance of a scholar, institution or field in a certain period by analyzing factors such as high cited papers, cited times and paper quality.

ESI ranks mainly in natural and social sciences, including 22 disciplines, such as physics, chemistry, materials science, biology and computer science. An important feature of this ranking is that it only considers the number of citations of other papers, and does not pay attention to whether the quality of the cited papers is high.

ESI ranking is often used in the evaluation of scientific and technological competition between countries and regions, the evaluation of scientific research ability and carrying capacity of universities, and the evaluation of academic influence. It not only reflects the overall level of a field, but also provides comparison and reference for individuals, institutions and fields. Although ESI ranking can evaluate the influence of a field or scholar to a certain extent, it is not the only evaluation criterion.

Some people think that ESI ranking is biased towards those already prestigious fields and institutions, which has certain limitations on the performance of emerging fields and scholars. In addition, ESI ranking is easily influenced by the manipulation of citation times. Due to the limitation of ESI ranking, some countries and regions have begun to try to develop local scientific research ranking.

For example, in 2004, the Chinese Academy of Sciences set up an international ranking advisory committee and published a list of highly cited scientists in China and highly cited institutions in China. At the same time, South Korea, Singapore, India and other countries have also released similar local ranking data.

ESI ranking reflects the performance of a country, region or institution in scientific research to a certain extent, which is of great significance for evaluating the global competitive situation and development trend in the field of scientific and technological innovation. At the same time, ESI has also promoted exchanges and cooperation among international academic circles, and provided reference for the development of scientific research.