Repetition rate requirements: the duplicate checking rate of doctoral dissertations is generally 5%~ 10%, and some universities with strict requirements require that the duplicate checking rate of no dissertations is less than 5%.

Database collection: With the country's attention to academic misconduct, the database collection of doctoral thesis duplicate checking software continues to increase, and the duplicate checking rate for doctors is also strict. For example, if more than thirteen characters are repeated in a sentence, they will be marked in red and included in the repetition rate of the full text.

Citation of references: The citation of references in doctoral dissertations shall not exceed 6% of the original text, and the citation of references shall not exceed 600 words.