Paper duplicate checking is to use special duplicate checking software or system to detect the similarity of submitted papers and judge whether there is plagiarism or repeated publication. The purpose of paper duplication checking is to ensure the originality and academic integrity of academic research and avoid academic fraud and misconduct. In the preliminary examination of thesis topics, it is necessary to check the repetition of the thesis to ensure the quality and academic level of the thesis.

First of all, the title of the paper represents the author's research achievements in a specific field and should be independent and original. Paper duplication checking can detect whether there is duplication or plagiarism in the paper by comparing the existing academic literature and related papers. This ensures the academic value and research significance of the thesis topic.

Secondly, the publication of the thesis topic is of great significance to graduate students. By publishing papers, graduate students can increase their research experience and academic reputation. However, if the title of the paper is plagiarized or published repeatedly, it will not only damage the academic image of the author, but also damage the reputation of the academic community. Therefore, it is very necessary to review the paper in the early stage of publication.

Finally, the development and application of paper duplicate checking system make paper duplicate checking more efficient and convenient. Modern science and technology digitalizes a large number of databases and academic documents, and through fast calculation and comparison algorithms, the similarity in papers can be effectively detected. In addition, some universities and scientific research institutions have also established independent duplicate checking systems, which provide convenience and support for duplicate checking of graduate papers.