Thirteen consecutive characters in a sentence are similar to or the same as the articles in the system library, so it is judged as duplicate content. The total repetition rate is the percentage of repeated words in the total number of words. The system will mark the repeated sentences in red, prompting the author to modify them.

There are many platforms for duplicate checking of graduation thesis. Taking the platform of hownet's academic misconduct detection system as an example, the multi-level comparison method is mainly adopted, that is, the article content is compared with the articles included in the resource comparison database with the sentence as the smallest unit.

Matters needing attention in paper search

Try to refer to foreign literature and increase the originality of the paper through translation. In addition, when quoting China literature, we should pay attention to the understanding of the content of the article and express it in personal language. Remember not to quote the original text directly, because duplicate checking will be marked in red. In addition, the selection of network resources should be cautious, and the duplicate checking system of HowNet will also conduct network search, especially for some websites with more network academic materials, so don't quote directly when searching for materials.

Because the duplicate checking system looks for continuous and repeated characters and detects them paragraph by paragraph, it can change the sentence structure of the original text by adjusting the word order, increasing or decreasing the content, and re-breaking the sentence, so as to achieve the effect of weight reduction.

The above contents refer to Baidu Encyclopedia-duplicate checking.