Papers with different degrees have different requirements for repetition rate. Usually, the repetition rate of undergraduate thesis is below 30%, and that of master thesis is below 15%. Doctoral students must meet the repetition rate requirement of 10% or even 5%. You can apply for a defense after checking your weight. However, if the repetition rate of doctoral thesis exceeds 20%, it will be directly postponed for six months to one year. After writing the paper, it is best to use the paper duplicate checking system of HowNet to check the duplicate, so as to better modify your paper in the future.

How to modify the paper?

1. If the number of words in the paper is enough, the detected duplicate content can be deleted in some way, which will not affect the core discussion, thus generally reducing the repetition rate of the paper quickly.

2. For the reference, if you think it is necessary to keep it, but you don't want to make a reference mark, then you need to modify the content of the reference, and it is best to restate it in your own language.

3. Translating foreign materials into Chinese usually greatly reduces the repetition rate of articles, but there are also some risks. If it is discovered by the original author, the consequences will be more serious. This is not an alarmist.

4. Convert text into pictures. The specific method is to use the screenshot directly in the text to be converted, and then insert the picture into the original position. The current detection system can't do anything about the picture, and the following duplicate checking will naturally reduce the repetition rate. But it will reduce the total number of words in the paper, and if it is found by the teacher, the consequences will be bad.