Aproximació no lineal i mostratge comprimit Authors Joaquim Bruna i Floris Abstract In this paper we give an introduction to relatively new field in mathematics, the so called compressed sensing or compressive sampling. It can be presented as a branch of signal analysis, whose appearance is related to another important field, big data analyis. Compressed sensing does not deal with processing big data sets, but rather with sampling methods that do not lead to unnnecessary data. For the sake of the exposition we briefly refer as well to non linear approximation theory. Downloads Text complet (Català) Published 2016-01-20 How to Cite Bruna i Floris, J. (2016). Aproximació no lineal i mostratge comprimit. Butlletí De La Societat Catalana De Matemàtiques, 30(2), 109–123. Retrieved from https://revistes.iec.cat/index.php/BSCM/article/view/89848.003 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 30 No. 2 (2015) Section Articles License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Butlletí de la Societat Catalana de Matemàtiques, authors accept the following terms:Authors assign to Societat Catalana de Matemàtiques (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Butlletí de la Societat Catalana de Matemàtiques.Authors answer to Societat Catalana de Matemàtiques for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.Societat Catalana de Matemàtiques declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at https://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.The journal Butlletí de la Societat Catalana de Matemàtiques is not responsible for the ideas and opinions expressed by the authors of the published articles.