Judging whether a paper needs to lose weight mainly depends on the content you write and the requirements of the target content. For example, if you are writing a submitted journal paper, the requirement of your submitted magazine is less than 20%, and the repetition rate of your paper is 30%, so you need to reduce the weight.

In addition, the current mainstream detection systems are: China HowNet, source document identification detection system (Shuobo), Wanfang detection and VIP detection.