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Keywords:
stability of stochastic optimization problem; weak convergence of probability measures; estimator consistency; metric spaces
stability of stochastic optimization problem; weak convergence of probability measures; estimator consistency; metric spaces
Summary:
This paper deals with stability of stochastic optimization problems in a general setting. Objective function is defined on a metric space and depends on a probability measure which is unknown, but, estimated from empirical observations. We try to derive stability results without precise knowledge of problem structure and without measurability assumption. Moreover, $\varepsilon $-optimal solutions are considered. The setup is illustrated on consistency of a $\varepsilon $-$M$-estimator in linear regression model.
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