Mohammad Hasanzadeh - Amirkabir University of Technology (Tehran Polytechnic
Mohammad Reza Meybodi
Mohammad Mehdi Ebadzadeh

This paper presents a modification of Particle Swarm Optimization (PSO) technique based on cooperative behavior of swarms and learning ability of an automaton. This approachcalled the Cooperative Particle Swarm Optimization based on Learning Automata (CPSOLA). The CPSOLA algorithm usesthree-layer cooperation: intra swarm, inter swarm and inter population. There are two active populations in CPSOLA. In the primary population, the particles are placed in all swarms andeach swarm consist of multiple dimensions of search space. Also there is a secondary population in CPSOLA which is used theconventional PSO's updating format. In the upper layer of cooperation, the embedded Learning Automaton (LA) isresponsible for deciding whether to cooperate between populations or not. Experiments are organized on five benchmark functions and results show notable performance androbustness of CPSOLA, cooperative behavior of swarms and successful adaptive control of populations

Particle Swarm Optimization (PSO); Learning Automata (LA); Cooperative learning