The databases and algorithms of these two systems are different, and the duplicate checking results may be different. Generally speaking, the duplicate checking system of HowNet is much more than the document comparison database of Wanfang duplicate checking system, so the duplicate checking result of HowNet is generally higher than Wanfang's, but this is not certain, and the specific situation is analyzed.

Students are advised to check the school's duplicate checking standards before duplicate checking. If the school requires the use of HowNet to check the duplicate, it is also recommended that students use the HowNet duplicate checking system when checking the duplicate in advance to ensure that the duplicate checking results are consistent.

At present, there are many paper duplicate checking systems on the market, such as HowNet, VIP, paperfree, papertime Wanfang and so on. All these systems can check the duplication of papers, but the results of repeated checking may be different. Therefore, when choosing a paper duplicate checking system, we must choose the same duplicate checking system as the school or institution to ensure the accuracy of duplicate checking results.