Scientific Citation Index (SCI) is a citation database established by eugene garfield of institute for scientific information (ISI) in Philadelphia, USA on 1957. SCI (scientific citation index), EI (engineering index) and ISTP (scientific conference proceedings index) are three world-famous scientific and technological literature retrieval systems.

It is an internationally recognized main retrieval tool for scientific statistics and scientific evaluation. In February 2020, the Ministry of Education and the Ministry of Science and Technology issued "Several Opinions on Standardizing the Use of Relevant Indicators of SCI Papers in Colleges and Universities and Establishing a Correct Evaluation Orientation", aiming at breaking the situation of "SCI first" of papers.

We should also take this as a breakthrough, come up with practical and hard moves with strong pertinence and maneuverability, get rid of "only paper theory" and establish a correct evaluation orientation. Scientific citation index, with its unique citation approach and comprehensive scientific data, counts a large number of citations, and then obtains quantitative indicators such as impact factors, citation frequency and real-time index of a journal paper in a certain discipline.

Scientific citation index is one of the most famous retrieval publications in the world, and it is also an important tool of bibliometrics and scientometrics. Through the citation retrieval function, you can find the early, then and recent academic documents of related research topics, and at the same time get the abstracts of papers; You can see the records of cited references, the cited situation and the records of related documents.

evaluation criterion

From 65438 to 0976, ISI derived journal citation report (JCR) from SCI, which provided a set of statistical data to show the citation of scientific journals, the number of published papers and the average citation of papers.

The impact factor (IF) of each journal can be calculated in JCR. The level of influencing factors can reflect the influence of a journal to some extent.