TESTING OF OPIMAL FITTING NONLINEAR EQUATION WITH CONTRACTION EXPANSION ALGORITHM
Gu Shi · Journal of Yangzhou University · 2001
The feasibility and precision test of an algorithm to optimal fitting of nonlinear equation was carried out by contractionexpansion algorithm, using NIST datasets. The results showed that with improved feedback system, the algorithm could reach optimal fitting for all testing problems. It also revealed one NIST result was not optimum. The parameter estimates were a little different from certified values, usually with higher precision for most of them. And the difficulty level to optimal solution was also not similar with NIST classification. It also could be used to cope with multivariate nonlinear regression.