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Approximative Compactness of Linear Combinations of Characteristic Functions

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    0524108 - ÚI 2021 RIV US eng J - Článek v odborném periodiku
    Kainen, P.C. - Kůrková, Věra - Vogt, A.
    Approximative Compactness of Linear Combinations of Characteristic Functions.
    Journal of Approximation Theory. Roč. 257, September 2020 (2020), č. článku 105435. ISSN 0021-9045. E-ISSN 1096-0430
    Grant CEP: GA ČR(CZ) GA18-23827S
    Institucionální podpora: RVO:67985807
    Klíčová slova: Approximative compactness * Compact sets of characteristic (indicator) functions * Symmetric difference metric * Hausdorff metric * Haar measure * Neural networks
    Obor OECD: Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
    Impakt faktor: 1.091, rok: 2020
    Způsob publikování: Omezený přístup
    http://dx.doi.org/10.1016/j.jat.2020.105435

    Best approximation by the set of all n-fold linear combinations of a family of characteristic functions of measurable subsets is investigated. Such combinations generalize Heaviside-type neural networks. Existence of best approximation is studied in terms of approximative compactness, which requires convergence of distance-minimizing sequences.
    Trvalý link: http://hdl.handle.net/11104/0308450

     
     
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