Core journals usually have very strict requirements on the originality and repetition rate of papers to ensure academic integrity and paper quality. Through duplicate checking, we can detect whether there are academic misconduct such as plagiarism in the paper, reduce the repetition rate of the paper and make it meet the requirements of core journals.

Now, no matter what papers need to be published or reviewed, it is necessary to detect the repetition rate, because duplicate checking is a necessary means to check the originality and quality of the papers.

If the repetition rate of the paper is too high, it is likely to be rejected or judged as academic misconduct, which will have a bad influence on the author's reputation. Therefore, the author should check the duplicate before publishing the core journal papers to ensure the quality and academic integrity of the papers.