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- W2787026056 abstract "In the paper we consider the problem of multivariate function approximation in polynomial basis. In order to solve this problem, we adjust the least squares method (LSM) by adding information about derivatives of the function. This modification allows reducing the number of evaluations of approximating function while keeping the accuracy at the appropriate level. We propose several techniques for time-efficient calculation of derivatives in various applications. Numerical examples are given for comparison between the standard LSM and the proposed approach." @default.
- W2787026056 created "2018-02-23" @default.
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- W2787026056 date "2018-02-05" @default.
- W2787026056 modified "2023-09-27" @default.
- W2787026056 title "Function approximation using gradient information with application to parametric and stochastic differential equations" @default.
- W2787026056 hasPublicationYear "2018" @default.
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