Výsledky vyhledávání - "weak Chebyshev greedy algorithm"

On the Approximate Weak Chebyshev Greedy Algorithm in uniformly smooth Banach spaces Autor Dereventsov, A.V.

“…We study greedy approximation in uniformly smooth Banach spaces. The Weak Chebyshev Greedy Algorithm (WCGA…”
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The Weak Chebyshev Greedy Algorithm (WCGA) in \(L^p (\log L)^\alpha\) spaces Autor Garrigós, Gustavo

“…We present some new results concerning Lebesgue-type inequalities for the Weak Chebyshev Greedy Algorithm (WCGA…”
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On the generalized Approximate Weak Chebyshev Greedy Algorithm Autor Dereventsov, Anton

“…In this paper we study greedy approximation in Banach spaces. We discuss a modification of the Weak Chebyshev Greedy Algorithm, in which steps of the algorithm can be executed imprecisely…”
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On the Approximate Weak Chebyshev Greedy Algorithm in Uniformly Smooth Banach Spaces Autor Dereventsov, A V

“…We study greedy approximation in uniformly smooth Banach spaces. The Weak Chebyshev Greedy Algorithm (WCGA…”
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Efficiency of weak greedy algorithms for m-term approximations Autor Ye, PeiXin, Wei, XiuJie

“…We investigate the efficiency of weak greedy algorithms for m-term expansional approximation with respect to quasi-greedy bases in general Banach spaces.We…”
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Duality Gap Estimates for Weak Chebyshev Greedy Algorithms in Banach Spaces Autor Mironov, S. V., Sidorov, S. P.

“…The paper studies weak greedy algorithms for finding sparse solutions of convex optimization problems in Banach spaces. We consider the concept of duality gap,…”
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Sparse Approximation and Recovery by Greedy Algorithms Autor Livshitz, Eugene D., Temlyakov, Vladimir N.

“… Second, we prove the Lebesgue-type inequalities for the weak Chebyshev greedy algorithm, a generalization of the weak orthogonal matching pursuit to the case of a Banach space…”
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The WCGA in Lp(logL)α Spaces Autor Garrigós, Gustavo

“…We present some new results concerning Lebesgue-type inequalities for the Weak Chebyshev Greedy Algorithm (WCGA…”
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Approximation Properties of the Vector Weak Rescaled Pure Greedy Algorithm Autor Xu, Xu, Guo, Jinyu, Ye, Peixin, Zhang, Wenhui

“…We first study the error performances of the Vector Weak Rescaled Pure Greedy Algorithm for simultaneous approximation with respect to a dictionary D in a…”
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Biorthogonal Greedy Algorithms in convex optimization Autor Dereventsov, A.V., Temlyakov, V.N.

“…The study of greedy approximation in the context of convex optimization is becoming a promising research direction as greedy algorithms are actively being…”
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SPARSE APPROXIMATION AND RECOVERY BY GREEDY ALGORITHMS IN BANACH SPACES Autor TEMLYAKOV, V. N.

“…We study sparse approximation by greedy algorithms. We prove the Lebesgue-type inequalities for the weak Chebyshev greedy algorithm (WCGA…”
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The WCGA in $$L^p(\log L)^{\alpha }$$ Spaces Autor Garrigós, Gustavo

“…We present some new results concerning Lebesgue-type inequalities for the Weak Chebyshev Greedy Algorithm (WCGA…”
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Greedy expansions in convex optimization Autor Temlyakov, V. N.

“… approximation in Banach spaces-Weak Chebyshev Greedy Algorithm, Weak Greedy Algorithm with Free Relaxation, and Weak Relaxed…”
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Relaxation in Greedy Approximation Autor Temlyakov, V.N.

“… There are two well-studied approximation methods: the Weak Chebyshev Greedy Algorithm (WCGA) and the Weak Relaxed Greedy Algorithm (WRGA…”
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A unified way of analyzing some greedy algorithms Autor Dereventsov, Anton, Temlyakov, Vladimir

“… In particular, we show that the following well-known algorithms --- the Weak Chebyshev Greedy Algorithm and the Weak Greedy Algorithm with Free Relaxation --- belong to this class…”
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Greedy algorithms in Banach spaces Autor Temlyakov, V.N.

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On greedy approximation in complex Banach spaces Autor Gasnikov, A, Temlyakov, V

“… Recently, some of results proved for the Weak Chebyshev Greedy Algorithm (WCGA) in the case of real Banach spaces were extended to the case of complex Banach spaces…”
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Greedy-Type Approximation in Banach Spaces and Applications Autor Temlyakov, V. N.

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Improving Greedy Algorithms for Rational Approximation Autor Adler, James H, Hu, Xiaozhe, Wang, Xue, Xue, Zhongqin

“…When developing robust preconditioners for multiphysics problems, fractional functions of the Laplace operator often arise and need to be inverted. Rational…”
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Sparse sampling recovery by greedy algorithms Autor Temlyakov, V

“… We apply a powerful nonlinear approximation method -- the Weak Chebyshev Greedy Algorithm (WCGA…”
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