There may be differences between Daya duplicate checking and HowNet duplicate checking, and the specific differences need to be compared according to different papers, detection system algorithms, databases and other factors.

Generally speaking, the duplicate checking rate of Daya may be about 20% higher than that of HowNet, but this is not absolute, because the duplicate checking rate is affected by many factors.

It is suggested that when using duplicate checking software, several different duplicate checking systems can be tried to obtain more comprehensive duplicate checking results. At the same time, we should also pay attention to choosing regular duplicate checking software to avoid unnecessary losses.

HowNet is a system used by most schools, and its database is authoritative. Paperfree and papertime are auxiliary revision references, which provide free weight checking, machine weight reduction, online revision and other functions, covering about 70% of HowNet's data, which can reduce the absolute cost of pre-test fees. To be on the safe side, it is recommended to use the duplicate checking system required by the school or institution for testing.