Affiliation:
1. College of Mathematics and Computer Science, Zhejiang Normal University, Jinhua 321004, China
2. AI Research Institute of Beijing Geekplus Technology Co., Ltd., Beijing 100101, China
Abstract
<abstract><p>This article is devoted to the structured and unstructured condition numbers for the total least squares with linear equality constraint (TLSE) problem. By making use of the dual techniques, we investigate three distinct kinds of unstructured condition numbers for a linear function of the TLSE solution and three structured condition numbers for this problem, i.e., normwise, mixed, and componentwise ones, and present their explicit expressions under both unstructured and structured componentwise perturbations. In addition, the relations between structured and unstructured normwise, componentwise, and mixed condition numbers for the TLSE problem are investigated. Furthermore, using the small-sample statistical condition estimation method, we also consider the statistical estimation of both unstructured and structured condition numbers and propose three algorithms. Theoretical and experimental results show that structured condition numbers are always smaller than the corresponding unstructured condition numbers.</p></abstract>
Publisher
American Institute of Mathematical Sciences (AIMS)
Cited by
3 articles.
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