The reason why the citation rate of papers detected on VIP is 0 is that the format is incorrect, the citation content is too short and the citation content has been modified. Details are as follows:

1. When the citation format is incorrect, it means that there is no citation content in the paper, so there will be no citation rate.

2. Too short citations can't be recognized by the paper duplicate checking system, so when a paper with zero citation rate appears, it may be because there are too few citations, which is also the reason why users should review when the citation rate is zero.

3. When the contents of the original cited documents have been modified, these cited contents will not be judged as cited contents during the content review, and the citation rate is likely to be zero.