Abstract
In this paper we propose a revised DEMATEL (DEcision MAking Trial and Evaluation Laboratory), called stochastic DEMATEL, to extract structural model of a complex problematique and to represent the priority of each factor taking into account the uncertainty of structure. In the stochastic DEMATEL, the uncertainty of structure is expressed as a stochastic model. In addition, we expand composite importance into stochastic composite importance, which is the measure to decide the priority of each factor under the uncertain condition. From numerical experiments, we confirm the effectiveness of stochastic DEMATEL and stochastic composite importance for the uncertain structure. We analyze the structure of uneasy factors, as it turned out, it is clear that stochastic DEMATEL and stochastic composite importance can represent the useful information in the case of extracting the features of structure and deciding the priorities of each factor.
