SCI impact factor calculation method:
Calculation method: the total number of citations in the first two years of the publication year ÷ the total number of articles published in the first two years.
For example, a journal published 18 1 article in 1996 and 1997 * *, but it was cited 2 times in 1998 * *, with an impact factor of 2 10.
Generally speaking, the impact factor > 1 means that the citation rate is quite high.
Impact factor score:
The score of ci is also called IF, and IF= the number of articles cited in the previous two years/the number of articles included in the previous two years. It should be clear when you see the formula. The level is only a proportion. Of course, the higher the score, the more difficult it is to publish and the higher the authority.
The lowest score is 0~ 1, and the highest score is 10, even dozens. When delivering, it is most important to evaluate your own articles and choose appropriate intervals to improve the success rate.
Extended data
SCI journals generally contain more science and engineering. Take chemical journals as an example. If it is less than 3, it is very general, 5 is an excellent magazine for small majors, 10 is an excellent magazine, and 10 or above is generally a review magazine.
Whether the influencing factors are high or not should be compared relatively. Among the journals with the same specialty and scope, those with more than 2 are considered high, while those with more than 1 are considered relatively high. In most cases, we publish a few tenths.
The greater the impact factors of journals, the greater the academic influence. The level of journal impact factors marks the quality of academic journals. In the choice of journals, choosing journals with high impact factors will have a better affirmation of your academic ability.
Baidu Encyclopedia -sci Impact Factors