1, the paper duplicate checking system of HowNet has the largest database in China, among which the Chinese resource database is also the largest database in the world, containing a large number of documents and materials, covering a very comprehensive range. Although the paper duplicate checking system of HowNet mainly includes Chinese literature resources, it is not all Chinese literature resources, and there are many foreign literature resources, especially English literature resources are more than other small language literature resources. Therefore, there are many resources that can be compared when detecting papers, and the results of duplicate checking are much more accurate.

There are also different duplicate checking systems according to the types of papers, especially the pmlc system of HowNet undergraduate course and the VIP5.3 system of HowNet Shuobo. There is also a unique joint comparison database of college students' papers and academic papers, which records all graduate papers detected by the corresponding system in the past. It is more accurate to use the corresponding hownet system to detect different types of papers.

2.VIP paper duplicate checking system VIP paper duplicate checking has massive comparison resources, intelligent detection technology, excellent user experience and detailed and accurate paper duplicate checking report.

3. Wanfang Paper Duplicate Checking System Many colleges and universities have also cooperated with Wanfang, and its authenticity and authority are beyond doubt. The charge is also cheaper and the operation is relatively simple. It is not a problem to take the first draft of the paper.