Brunetti, Antonio (2000) A Fast and precise genetic algorithm for a non-linear fitting problem. Computer Physics Communications, Vol. 124 (2-3), p. 204-211. ISSN 0010-4655. Article.
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Fitting procedures are currently used in a large set of computational problems and several algorithms have been developed. However, a complication appears when the fitting function is non-linear and non-lineariable. In this case, a Marquardt–Levenberg procedure is generally used, but it often requires interactions with the user. Here a new method is proposed which is based on a genetic algorithm technique. This kind of algorithm allows fitting in a completely automatic mode, without any manipulation over the fitting function. The algorithm developed is generally faster and more precise than traditional genetic algorithms reported in the literature. Its performances are comparable to those in the Marquardt–Levenberg algorithm technique. It has been developed as fitting method for measurements of X-ray tube response. Fitting this response is very important to avoid any patient injuries. The results obtained are reported here and compared to other genetic algorithm implementations, as well as a Marquardt–Levenberg procedure.
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