SCI and SCIE, these two names sound very similar, but there are great differences between them! First of all, let's see what's the difference in their scope. The scope of SCI is larger than that of SCIE, just like a big circle with a small circle inside, and SCIE is that small circle. In other words, SCI contains more academic journals, and SCIE is only a part of them.

Next, let's understand the differences they outlined. SCI papers, like those published in journals included in SCI, are recognized as academic evaluation criteria. SCIE, on the other hand, is an expanded version of SCI, which mainly includes important journals in the fields of natural science and engineering technology, including more than 2,000 peripheral journals.

Finally, let's see how their development is different. SCI is a citation database founded by institute for scientific information, USA, which has been published since 196 1. On the other hand, SCIE is widely used in China. Since 2000, SCIE has been used in the statistics of SCI papers in China. In other words, if your paper is included in SCIE after the 2000 edition, it is equivalent to being included in SCI!

So, although SCI and SCIE sound similar, they are completely different! I hope this popular science can make you better understand the difference between these two academic evaluation systems!