The scope of paper repeated inspection covers many aspects. First of all, the duplicate checking system will check the main contents of the paper, including the overall structure, chapter arrangement, paragraph logic and so on. By detecting these aspects, the duplicate checking system can judge whether the overall presentation of the paper belongs to originality.

Secondly, the duplicate checking system will detect the cited part of the paper. In academic research, it is essential to cite other people's research results, but too much or no citation will lead to academic misconduct. The duplicate checking system can detect the contents of citations in papers and compare them with related databases, so as to judge whether the sources of citations are correct.

In addition, the duplicate checking system will also test the empirical data and experimental results of the paper. In academic research, the authenticity and accuracy of data are very important, and forging and tampering with data is an important manifestation of academic misconduct. By testing the empirical data in the paper, the duplicate checking system can judge the authenticity and accuracy of the data.

In addition, the duplicate checking system will also detect the language expression in the paper. Academic papers need to be expressed in standardized language, and plagiarists often rewrite or copy and paste other people's articles directly. The duplicate checking system will find plagiarism in the paper by analyzing the language expression in the paper.