The paper duplication checking system mainly compares the repeated words or fragments in the paper with the documents in its own database to judge the originality of the paper. Generally speaking, 13 consecutive characters are similar or identical and will be judged as duplicates. In the duplicate checking report, the duplicate parts are usually marked in red.

In addition, different duplicate checking systems may have different advantages and characteristics, so it is very important to choose the appropriate duplicate checking system. At the same time, in order to ensure the accuracy and reliability of the paper, it is suggested to use multiple duplicate checking system for testing, so as to better evaluate the originality and academic integrity of the paper.

In short, duplicate checking is an important part of the construction of academic integrity, which should be paid attention to, followed by academic norms, original writing and avoiding plagiarism.