INTRODUCTION

Intelligence can be defined as the capability of a system to adapt its behavior to an ever-changing environment. The form or appearance of a system is irrelevant to it is intelligence (Negnevitsky, 2005). However, we need to form our everyday experience of knowledge: we know that evidences of intelligent behavior are easily observed in humans. But we are products of evolution, and thus by modeling the process of evolution, we might expect to create intelligent behavior. Evolutionary computation simulates evolution on a computer. The result of such a simulation is a serie of optimization algorithms, usually based on a simple set of rules. Optimization iteratively improves the quality of solutions until an optimal, or at least feasible, solution is found.