Abstract
We prersent a method to evaluate input motions by mapping them to the feature space according to the response characteristics, adopting the Kullback-Leibler divergence as the norm. The proposed method makes it possible to evaluate input motions considering plural indices related to structural damage and also uncertainty of the input motion and structural parameters. Using the proposed method, the wavelet transform and Fourier transform are compared in terms of their performance as the input motion representation. Numerical computation results indicate the superiority of the wavelet representation.