Title :
A Genetic Algorithm approach for selecting Tikhonov regularization parameter
Author :
Wu, Chuansheng ; He, Jinrong ; Zou, Xiufen
Author_Institution :
Sch. of Sci., Wuhan Univ. of Technol., Wuhan
Abstract :
This paper presents a genetic algorithm approach for selecting a Tikhonov regularization parameter. In using Tikhonov parameters regularization for solving ill problems, in terms of inverse problems of the first category, we could first apply discrete regularization method to transfer it into linear algebraic equations, and then get regular solutions by solving of Euler equations which is of minimum functional equivalence for Tikhonov. As to the selection of regularization parameter, this paper choose a genetic algorithm approach, which takes Morozov deviation equation as fitness function for genetic algorithm approach, and dynamically selects regularization parameter by designing genetic operation like crossover, mutation and genetic selection. Numerical results show that it is a feasible as well as an effective approach for selecting regularization parameter.
Keywords :
genetic algorithms; inverse problems; linear algebra; Euler equations; Morozov deviation equation; Tikhonov regularization parameter; discrete regularization method; fitness function; genetic algorithm; genetic operation; inverse problems; linear algebraic equations; Algorithm design and analysis; Binary sequences; Biological cells; Decoding; Encoding; Equations; Genetic algorithms; Genetic mutations; Helium; Inverse problems;
Conference_Titel :
Evolutionary Computation, 2008. CEC 2008. (IEEE World Congress on Computational Intelligence). IEEE Congress on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-1822-0
Electronic_ISBN :
978-1-4244-1823-7
DOI :
10.1109/CEC.2008.4631339