The duplicate checking of papers generally starts with the title, followed by the table of contents, Chinese and English abstracts, text, thanks and references. Do not copy the cover, statement, abstract and opening report. If the paper is plagiarized in HowNet, then pictures, formulas and codes will be plagiarized. Participating in duplicate checking does not necessarily mean that the repetition rate will be calculated for this part of the content. For example, as long as the format is correct and the content is standardized, titles, catalogues and references are generally not counted.