Abstract: With reference to the thought of Gravity search and Local search, it makes improvement to the arithmetic crossover and nonuniform mutation. Gravity search and Chaotic search were integrated into the improved crossover and mutation operators. The new operators have global search and local search performance. At the same time, the best individual was used for chaotic search. Simulation experiments show that the improved operators not only speed up the convergence of the algorithm, but also improve the precision.

Key words: genetic algorithm; gravity search; chaotic; crossover operator; mutation operator