Specifically, the duplicate checking system usually divides the paper into different parts such as sentences, paragraphs and chapters, and then compares each part. If a sentence or paragraph has more than a certain proportion of similar content in the comparison database, it will be marked as duplicate. Generally speaking, the duplicate checking system will mark the parts with high similarity in red or orange, which is convenient for the author to modify and adjust.
It should be noted that different duplicate checking systems have different algorithms and comparison ranges, so the ways of calculating duplication may be different. In addition, some authors may reduce the repetition rate through language conversion and synonym substitution, but this way may affect the quality and accuracy of the paper. Therefore, it is necessary to choose an appropriate duplicate checking system and standardize writing and formatting as required to ensure the quality and readability of the paper.