First, published papers can definitely be re-examined. For a simple example, we can even download papers from HowNet, convert them into WORD format, typeset them, and submit them to HowNet for re-examination. This is just a problem with high repetition rate.

Secondly, the duplicate checking of HowNet has become more and more intelligent. Even the latest version of the VIP5.2 system of HowNet has developed to the latest version of version 5.3, which can automatically identify legal provisions, so the self-cited part of the author of the paper can also be identified. But there is a premise that the author of the paper should accurately write down the basic information such as name when checking. That is to say, if the author quotes the content of his previous article in a later article, HowNet will automatically identify this part as the author's self-quoted part according to the author's name, and finally calculate the repetition rate of HowNet according to the repetition rate of the quoted part, so that you can boldly and confidently quote his previous article in the previous article.

In short, published articles can still be copied. However, if the author wants to eliminate the problem of low repetition rate of cited documents, he must accurately write his own name and other personal basic information when repeating, so that the duplicate checking system of HowNet can automatically identify the author of the paper and thus identify what the author has written before.