Abstract

In this paper, an improved harmony search with chaos (HSCH) is presented for solving NP-hard absolute value equation (AVE) A x - | x | = b , where A is an arbitrary square matrix whose singular values exceed one. The simulation results in solving some given AVE problems demonstrate that the HSCH algorithm is valid and outperforms the classical HS algorithm (HS) and HS algorithm with differential mutation operator (HSDE).

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