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- W2294224592 abstract "The approximation of a high-dimensional vector by a small combination of column vectors selected from a fixed matrix has been actively debated in several different disciplines. In this paper, a sampling approach based on the Monte Carlo method is presented as an efficient solver for such problems. Especially, the use of simulated annealing (SA), a metaheuristic optimization algorithm, for determining degrees of freedom (the number of used columns) by cross validation is focused on and tested. Test on a synthetic model indicates that our SA-based approach can find a nearly optimal solution for the approximation problem and, when combined with the CV framework, it can optimize the generalization ability. Its utility is also confirmed by application to a real-world supernova data set." @default.
- W2294224592 created "2016-06-24" @default.
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- W2294224592 date "2016-03-04" @default.
- W2294224592 modified "2023-09-27" @default.
- W2294224592 title "Sampling approach to sparse approximation problem: determining degrees of freedom by simulated annealing" @default.
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