eprintid: 1707 rev_number: 8 eprint_status: archive userid: 46 dir: disk0/00/00/17/07 datestamp: 2013-09-13 09:19:51 lastmod: 2013-09-16 12:03:00 status_changed: 2013-09-13 09:19:51 type: article metadata_visibility: show creators_name: Gnecco, Giorgio creators_name: Sanguineti, Marcello creators_id: giorgio.gnecco@imtlucca.it creators_id: title: Estimates of the Approximation Error Using Rademacher Complexity: Learning Vector-Valued Functions ispublished: pub subjects: QA75 divisions: CSA full_text_status: public note: This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. abstract: For certain families of multivariable vector-valued functions to be approximated, the accuracy of approximation schemes made up of linear combinations of computational units containing adjustable parameters is investigated. Upper bounds on the approximation error are derived that depend on the Rademacher complexities of the families. The estimates exploit possible relationships among the components of the multivariable vector-valued functions. All such components are approximated simultaneously in such a way to use, for a desired approximation accuracy, less computational units than those required by componentwise approximation. An application to -stage optimization problems is discussed. date: 2008 date_type: published publication: Journal of Inequalities and Applications volume: 2008 publisher: Springer pagerange: 1-16 id_number: 10.1155/2008/640758 refereed: TRUE issn: 1025-5834 official_url: http://www.journalofinequalitiesandapplications.com/content/2008/1/640758 citation: Gnecco, Giorgio and Sanguineti, Marcello Estimates of the Approximation Error Using Rademacher Complexity: Learning Vector-Valued Functions. Journal of Inequalities and Applications, 2008. pp. 1-16. ISSN 1025-5834 (2008) document_url: http://eprints.imtlucca.it/1707/1/J.%20Inequalities%20and%20Applications_Gnecco_2008.pdf