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mean-covariance-regression
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Application of mean-covariance regression methods for estimation of edp|im distributions for small record sets
, Article Journal of Earthquake Engineering ; Volume 26, Issue 14 , 2022 , Pages 7276-7296 ; 13632469 (ISSN) ; Rofooei, F. R ; Sharif University of Technology
Taylor and Francis Ltd
2022
Abstract
The performance of several regression methods is investigated to estimate the distribution of engineering demand parameters conditioned on intensity measures (EDP|IM) for small record sets. In particular, the performance of the multivariate ordinary least squares (OLS), a simultaneous mean-variance regression (MVR) done by a penalized weighted least-square loss function, and a mean-covariance/variance regression based on expectation maximization method (EM) are assessed. The efficiency of the introduced methods is compared with FEMA-P58 methodology. Performance assessment of EM and MVR methods shows that the overall increase in efficiency is about 25–45% for maximum inter-story drift ratios,...