However, it should be noted that the paper-based duplicate checking system may have different detection methods and standards for words and charts. For words, the duplicate checking system generally adopts a comparison method based on text content, which can detect whether the text content such as sentences and paragraphs in the paper is duplicated with the content in the database. For charts, the duplicate checking system generally adopts the comparison method based on image content, which can detect whether the shape, color and content of the chart are duplicated with the content in the database.
Therefore, in the process of writing and revising the paper, strict originality and normative requirements should be made for the words and charts to avoid plagiarism or repetition of the words or charts. At the same time, when checking duplicate papers, we should also pay attention to the selection of appropriate duplicate checking systems, such as HowNet, paperfree, papertime and so on. According to the detection methods and standards of different duplicate checking systems, the test papers are comprehensively detected and compared to avoid missing or false detection.