Multivariate Bayesian Regression Analysis Applied to Pseudo-Acceleration Atenuattion Relationships

Abstract eng:
The application of a linear multivariate Bayesian regression model to compute pseudoacceleration (SA) attenuation relationships is presented. The model is able to include the correlation between observations for a given earthquake, the correlation between SA ordinates of different periods and the correlation between coefficients of the regression model. Through comparisons between results obtained with the least-squares method and the one-stage maximum-likelihood method, the advantages of the Bayesian model are discussed.

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