摘要
Abstract
The solution of least absolute deviation (LAD),a pending problem for more than 200 years in mathematics, is not easy to calculate because of the absolute value function. Based on a great deal of computing and long-term study of various mathematical models under LAD criteria, a conclusion is drawn that if there is a LAD parameter a = a* ∈Rn, andmaking the following LAD criterion tenable mΣi=I/gi-f(χi,a* ) | = min, then the fitting function fI(χ, a* ) can be characterized that there are at least n points χ1,χ2,???,xn, making gi - f(χi,a*) =0,I = 1,2, ??? ,n(n≤m) valid,the problem of LAD solution can be achieved.关键词
曲线拟合/最小一乘/逼近Key words
urve fitting/least absolute deviation/approximation分类
数理科学
