AN INPUT METHOD USING DISCRETE FITNESS VALUES FOR INTERACTIVE GA

This paper proposes a new input method for human operators of an inter active GA to reduce their psychological burden. This method utilizes d iscrete fitness values to reduce the psychological stress involved in the input procedure. The advantage and disadvantage of the proposed me thod are evaluated and discussed. We conducted simulations to investig ate the influence of quantization noise stemming from the use of discr ete fitness values on convergence. Results show that the quantization noise does not significantly worsen convergence in practical use. The proposed method and a variation of the method which combines both disc rete and continuous fitness values are evaluated using two subjective tests involving the task of drawing faces. The results of the subjecti ve tests indicate that our proposed method and its variation can signi ficantly reduce the psychological stress level of human interactive GA operators. The experimental results of the proposed method are discus sed on its universality.