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If our function is non linear (w.r.t. the unknown coefficients) we can use non linear least squares to find them - but there will be no closed form solution. Numerical methods like the Newton-Raphson method could be used.
There are 2 ways to look at the Gauss-Newton method: either as Newton-Raphson method which uses an approximation of the Hessian (of the loss function), or as an iterative ordinary least squares which uses a 1st order (linear) Taylor approximation (of the non linear function itself).
Негізгі бет Gauss Newton - Non Linear Least Squares
Пікірлер: 23