关键词: 混沌, 人口迁移, 混合算法, 函数优化

Abstract: In view of the Population Migration Algorithm（PMA） existing some shortcomings，such as the slow convergence speed，easily falling into the local optimum value，the low convergence accuracy and so on，according to the chaotic motion with randomness，ergodicity and intrinsic regularity，this paper adopts the chaotic method to improve the PMA and proposes a hybrid PMA based on the chaos optimization mechanism.The experimental results based on the eight typical functions show that the proposed algorithm is not sensitive to the initial value，the algorithm has good convergence efficiency and high solution precision，the performance is far superior to the PMA.

Key words: chaos, population migration, hybrid algorithm, function optimization