An evaluation computing method based on cloud model with core space and its application: Bridges management evaluation

Abstract

In a multi-factor comprehensive evaluation, the factors related to objects are always various and most of them have the characteristics of uncertainty. Taking the mapping between qualitative and quantitative knowledge of cloud model, a high dimensional cloud model with core space was built. And then based on a sample set of maintenance and management of the 55 bridges in Chongqing and an index system with six first-level indices, parameters of the high dimensional cloud model with core space and mean membership of every bridge sample were computed and gotten. Compared with the results of cloud model, experts experience and support vector machine for this sample, it indicated the cloud model with core space could be applied to a multi-attribute evaluation well. Finally, according to the evaluation, some suggestion was given. © 2013 Springer Science+Business Media New York.