HowNet has a master's and doctor's literature database, which will contain all kinds of master's and doctor's thesis data, so as to detect whether the master's thesis has duplicate content. If a student plagiarizes the content of someone else's master's thesis, the duplicate checking system of HowNet will calculate the repetition rate according to the standard of 13 characters.

The official testing system of HowNet is not open to individuals, so students can't test their papers by themselves, but only through a third-party testing platform. Besides HowNet, there are several paper checking systems widely used in China, such as Wan Fang Data, checkpass""paperpass and paperfree.

Contents of duplicate checking of papers:

Including text, original description, abstract, icon and formula description, references, appendices, experimental research results, conclusions, introduction, patents, documents, notes and various forms. In the graduation season, most colleges and universities will issue a unified notice to explain the graduation thesis specification and duplicate checking instructions.

The school will uniformly distribute the test paper styles and other contents, and generally specify the scope of duplicate checking. If the school has specific requirements, it must be submitted according to the requirements of the school. It takes about 60 minutes to check the duplicate of graduation thesis, and a duplicate check report can be issued. The duplicate checking website is used to analyze and check the contents of papers.