Computational Intelligence

26 Chapter Two—Computational Intelligence

The fitness space is the space we use to define the “goodness” of the solutions

(in the output space) gener ated by the adaptive system. It is common practice

to scale the fitness to values between 0 and 1, with the optimal value being 0 or

1 depending on whether the goal is to minimize or maximize the fitness value.

Sometimes the fitness space and the system output space are the same. A sim-

ple example of this is maximizing the function sin(

πx/256) for integer values of

x between 0 and 255 (the input parameter space). This is the example we use in

Chapter 3 to illustrate the step-by-step process of a genetic