1. body content: this is the most basic scope of duplicate checking, including the title, abstract, body and conclusion of the paper. The duplicate checking system will compare this paper with other papers in the database to see if there are any identical or highly similar large articles.
2. Citations and references: The duplicate checking system will also check whether the citations and references in the paper are accurate. If the quoted content is not marked with the source, or the marked source is inconsistent with the actual situation, it may be judged as plagiarism.
3. Charts and data: Some duplicate checking systems will also check whether the charts and data in the paper are the same as other papers. This is because some authors may directly copy other people's charts and data without indicating the source.
4. Structure and format: The duplicate checking system will also check whether the structure and format of the paper are similar to other papers. This is because some authors may copy the structure of other people's papers or directly copy the format of other people's papers.
5. Language style and expression: The duplicate checking system will also check whether the language style and expression of the paper are similar to other papers. This is because some authors may copy other people's language styles and expressions to improve the quality of their papers.
Generally speaking, the purpose of paper duplication checking is to ensure academic fairness and innovation and prevent academic misconduct. Therefore, whether in the process of writing or before submitting a paper, we should try our best to avoid copying and plagiarizing other people's content.