Vulnerability, Uncertainty, and Risk 2014
DOI: 10.1061/9780784413609.042
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A Group of Deterioration Curves of Bridges Estimated by Extended EM Algorithm

Abstract: This study proposes a method to separate data into several groups and perform regression analysis for each group at the same time statistically by using EM (Expectation and Maximization) algorithm or its extended formulation to nonlinear regression problem. With using the proposed method, a group of deterioration curves is estimated based on database of health index of 341 bridges by visual inspection in Gifu prefecture, Japan. Ordinary EM algorithm can treat linear regression only, so that the algorithm is ex… Show more

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