The reliability of general mathematical modeling will not exceed 15%, but it will be more stringent and may be below 10%. Mathematical modeling is actually to establish a mathematical model according to the actual problem and solve the actual problem according to the result of the mathematical model. Therefore, the graduation thesis of science and engineering majors is very rigorous, and its assessment process will naturally be more rigorous. Universities and graduates of these majors generally choose the paper duplicate checking system of HowNet to duplicate their papers. Therefore, colleges and universities generally stipulate that the duplicate checking rate of mathematical modeling papers should not exceed 15%, and of course there will be more stringent ones, which may be below 10%.