A method of solving the inverse problem through an iterative process is provided whereby each iterative effectively solves one forward problem without having to sample the entire non-linear space. One particular process utilizes a neo-Darwinism method. Under this method, the sample space is iteratively analyzed via "mutations" (150) to the value of the variable involved. A better outcome value (164) is determined to exist when a set of ratings is closer to the required set. Because the average rating is an invariant, the variable space is operated on throughout the process of looking for the combination of factors that will lead to the better outcome value (174).
