In a certain period of time, institutions or individuals need to complete the retrieval, evaluation and release of ESI. The deadline of ESI refers to a specific time period within which institutions or individuals need to complete the retrieval, evaluation and publication of ESI. Specifically, ESI is the abbreviation of EssentialScienceIndicators, which is a scientific index issued by institute for scientific information (ISI). It is used to measure the influence of scientific research institutions, scholars and journals in the scientific field, including highly cited papers, highly cited scientists, highly cited research institutions, highly cited journals and other indicators. In ESI, each subject area has an independent ranking, which is based on the number of citations and citations of papers in that subject area. Therefore, the deadline of ESI is usually related to the publication time of the paper. Generally speaking, the deadline of ESI is June 30th and June 30th, 65438+February 30th, 3 1 every year. In other words, during this time period, all papers need to be counted in the corresponding subject areas in order to calculate the ranking. It should be noted that the deadline of ESI is not fixed and will change according to different disciplines. Therefore, when determining the deadline of ESI, it is necessary to refer to relevant official announcements or notices.