J4 ›› 2010, Vol. 37 ›› Issue (4): 764-769.doi: 10.3969/j.issn.1001-2400.2010.04.032

• Original Articles • Previous Articles     Next Articles

Method of particle swarm optimization based on the chaos map

LIU Dao-hua1,2;YUAN Si-cong2;LAN Yang1;MA Xin-jian2   

  1. (1. School of Computer & Info. Tech., Xinyang Normal Univ., Xinyang  464000,China;
    2. School of Mech. & Elec. Eng., Xi'an Univ. of Arch. & Tech., Xi'an  710055, China
  • Received:2009-04-23 Online:2010-08-20 Published:2010-10-11
  • Contact: LIU Dao-hua E-mail:ldhzzx@163.com

Abstract:

In order to improve the solving performance of particle swarm optimization(PSO), first the basic principle of PSO is analyzed and mapping rules for two types of chaos map are given. Next, PSO based on the Logistic map (LGM-PSO) and Lozi's map (LZM-PSO) are constructed, and the methods for treating two types of constraints are given. To compare the performances of LGM-PSO, LZM-PSO and the standard particle swarm optimization, the three methods are used to solve the benchmark constrained optimal problem. Their performances are compared in terms of optimal solution, success ratio, average valid evaluation number, iterative occupancy hours and so on. Comparison results indicate that the LZM-PSO has many advantages, such as higher solution accuracy and higher computational efficiency.

Key words: logisitic map, Lozi's map, chaos theory, particle swarm optimization