@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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    dct:description """
              This paper investigates the problem of designing a deterministic system matrix, that is measurement matrix, for sparse recovery. An efficient greedy algorithm is proposed in order to extract the class of sparse signal/image which cannot be reconstructed by $\\ell_1$-minimization for a fixed system matrix. Based on the polytope theory, the algorithm provides a geometric interpretation of the recovery condition considering the seminal work by Donoho. The paper presents an additional condition, extending the Fuchs/Tropp results, in order to deal with noisy measurements. Simulations are conducted for tomography-like imaging system in which the design of the system matrix is a difficult task consisting of the selection of the number of views according to the sparsity degree.
            """ ;
    dct:identifier "hal-00826821" ;
    dct:issued "2026-05-10T23:56:52.845271"^^xsd:dateTime ;
    dct:language "en" ;
    dct:modified "2026-05-10T23:56:52.845276"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "A greedy algorithm to extract sparsity degree for l1/l0-equivalence in a deterministic context" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
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    dcat:keyword "compressed-sensing",
        "infoeu-reposemanticsarticle",
        "infoinfo-tscomputer-science-cssignal-and-image-processing",
        "journal-articles",
        "spisignalengineering-sciences-physicssignal-and-image-processing",
        "tomography" ;
    dcat:landingPage <EUSIPCO%202012> .

<EUSIPCO%202012> a foaf:Document .

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    dct:format "HTML" ;
    dct:issued "2026-05-10T23:56:52.850953"^^xsd:dateTime ;
    dct:modified "2026-05-10T23:56:52.837799"^^xsd:dateTime ;
    dct:title "A greedy algorithm to extract sparsity degree for l1/l0-equivalence in a deterministic context" ;
    dcat:accessURL <https://hal.science/hal-00826821> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
    foaf:name "test_moissonnage_selune" .