Subjective Evaluation of Initial Value Setting of Design Parameters Using Arbitrary Onomatopoeia in Interactive Design

Abstract

Interactive design can be dealt as a sort of optimal solution search problems. In optimal solution search, initial value setting plays an important role. In order to solve the initial value setting, our previous study proposed a method using the onomatopoeia thesaurus map that can use arbitrary onomatopoeia. In the experiment of the previous study, we evaluated the proposed method using the brush font design system as an example. The experiment showed that the proposed method can set initial values near the optimum values in the design parameter space. The experiment adopted Euclidean distance between the optimum value and the initial value in the design parameter space. The experiment compared the Euclidean distance between the proposed method and other methods. The relationship between the Euclidean distance and the amount of change of the visual effect for brush fonts is not linear. The amount of change of the visual effect depends on the position in the parameter space. Therefore, the previous study could not show the effectiveness of the proposed method. This paper adopted subjective evaluation to evaluate visual similarity of the brush font between the optimum value and the initial value set by proposed method. We compared the proposed method with the other methods as in the previous research. As the result, the proposed method was most similar to the visual effect generated by the optimum value. In addition, there were statistical significances between the proposed method and the others.