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To further enhance the pattern discrimination of CRC, in this article we propose a novel extension of CRC, entitled discriminative, competitive, and collaborative representation\u2010based classification (DCCRC). In the proposed DCCRC, the class discrimination information is fully utilized for promoting the true class of each testing sample to dominantly represent the testing sample during collaborative representation. The class discrimination information is well considered in the newly designed discriminative <jats:italic>l<\/jats:italic><jats:sub>2<\/jats:sub>\u2010norm regularization that can decrease the ability of representation from the interclasses of each testing sample. Simultaneously, a competitive <jats:italic>l<\/jats:italic><jats:sub>2<\/jats:sub>\u2010norm regularization is introduced to the DCCRC model with the class discrimination information with the aim of enhancing the competitive ability of representation from the true class of each testing sample. The effectiveness of the proposed DCCRC is explored by extensive experiments on the several public face databases and some real numerical UCI data sets. The experimental results demonstrate that the proposed DCCRC achieves the superior performance over the state\u2010of\u2010the\u2010art representation\u2010based classification methods.<\/jats:p>","DOI":"10.1155\/2019\/3251026","type":"journal-article","created":{"date-parts":[[2019,12,7]],"date-time":"2019-12-07T23:30:24Z","timestamp":1575761424000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Discriminative, Competitive, and Collaborative Representation\u2010Based Classification with <i>l<\/i><sub>2<\/sub>\u2010Norm Regularizations"],"prefix":"10.1155","volume":"2019","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8438-7286","authenticated-orcid":false,"given":"Jianping","family":"Gou","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junyu","family":"Lu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8583-2804","authenticated-orcid":false,"given":"Heping","family":"Song","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongxing","family":"Ma","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weihua","family":"Ou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7243-7792","authenticated-orcid":false,"given":"Jia","family":"Ke","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,12,7]]},"reference":[{"key":"e_1_2_9_1_2","doi-asserted-by":"publisher","DOI":"10.1109\/tpami.2008.79"},{"key":"e_1_2_9_2_2","unstructured":"ZhangL. 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