1. The detection range of the source paper identification and duplicate checking system: academic paper data comparison database, book data comparison database, periodical data comparison database, conference data comparison database, newspaper data comparison database and yearbook data comparison database.

Patent data comparison database, overseas literature data comparison database, Internet open resource comparison database, undergraduate, doctoral and master thesis database (joint comparison database for college students and academic joint comparison database).

2. The detection scope of HowNet duplicate checking system: online publishing database of academic journals in China, full-text database of doctoral dissertations in China, full-text database of excellent master's dissertations in China, full-text database of important newspapers and periodicals in China, full-text database of patents in China and book resources.

Priority is given to the publication of literature databases, joint comparison databases of college students' papers, Internet resources (including forum resources such as post bars) and English databases (covering periodicals, doctoral and master's degrees, etc.). ).) Hong Kong, Macao and Taiwan academic literature database, Internet literature resources, source code database, etc.

Therefore, from the comparison range of the database, it is obvious that there are still differences between the data of the duplicate checking system of HowNet and the data of the duplicate checking system of the source document. So it is impossible to say that the results of duplicate checking are exactly the same.