The calculation method of SCI impact factor is as follows: The annual published SCI impact factor (taking 2020 as an example) is actually the IF value of the previous year (taking 20 19 as an example), specifically the average citation times of articles published in this journal in 20 17 and 20 18. The formula is: if 2019 = c 2019/(n 20 17+n 20 18), where n 20 17+n 2018 are 20/respectively.

The influence factor of doctor is the sum of the influence factors of sci papers published throughout your doctor's career, which is the influence factor of your doctor.