{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,18]],"date-time":"2026-07-18T15:40:09Z","timestamp":1784389209338,"version":"3.55.0"},"reference-count":34,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","issue":"11","license":[{"start":{"date-parts":[[2014,11,1]],"date-time":"2014-11-01T00:00:00Z","timestamp":1414800000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/ieeexplore.ieee.org\/Xplorehelp\/downloads\/license-information\/IEEE.html"}],"funder":[{"name":"Icelandic Research Fund","award":["130635-051"],"award-info":[{"award-number":["130635-051"]}]},{"name":"University of Iceland Research Fund"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Trans. Geosci. Remote Sensing"],"published-print":{"date-parts":[[2014,11]]},"DOI":"10.1109\/tgrs.2014.2303155","type":"journal-article","created":{"date-parts":[[2014,3,20]],"date-time":"2014-03-20T18:03:24Z","timestamp":1395338604000},"page":"6793-6806","source":"Crossref","is-referenced-by-count":71,"title":["Hyperspectral Unmixing With &lt;inline-formula&gt; &lt;tex-math notation=\"TeX\"&gt;$l_{q}$&lt;\/tex-math&gt;&lt;\/inline-formula&gt; Regularization"],"prefix":"10.1109","volume":"52","author":[{"given":"Jakob","family":"Sigurdsson","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Magnus Orn","family":"Ulfarsson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johannes R.","family":"Sveinsson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"263","reference":[{"key":"ref33","first-page":"1065","article-title":"Multiplicative updates for nonnegative quadratic programming in support vector machines","volume":"15","author":"sha","year":"2002","journal-title":"Adv Neural Inf Process Syst"},{"key":"ref32","author":"selesnick","year":"2009","journal-title":"Sparse signal restoration"},{"key":"ref31","doi-asserted-by":"publisher","DOI":"10.1198\/0003130042836"},{"key":"ref30","doi-asserted-by":"publisher","DOI":"10.1109\/WHISPERS.2010.5594884"},{"key":"ref34","doi-asserted-by":"crossref","DOI":"10.1007\/b98888","author":"ramsay","year":"2005","journal-title":"Functional Data Analysis"},{"key":"ref10","first-page":"61","article-title":"Using blocks of skewers for faster computation of pixel purity index","author":"theiler","year":"0","journal-title":"Proc SPIE Int Conf Opt Sci Technol"},{"key":"ref11","first-page":"266277","article-title":"N-FINDR: An algorithm for fast autonomous spectral endmember determination in hyperspectral data","volume":"3753","author":"winter","year":"0","journal-title":"Proc SPIE Image Spectrom V"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1109\/TGRS.2005.844293"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1109\/WHISPERS.2009.5289072"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1109\/IGARSS.2008.4779330"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2009.2025797"},{"key":"ref16","first-page":"1164","article-title":"Hyperspectral image unmixing via alternating projected subgradients","author":"zymnis","year":"0","journal-title":"Confrec 41st ACSSC"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1109\/IGARSS.2012.6350774"},{"key":"ref18","article-title":"Smooth and sparse hyperspectral unmixing using an $\\ell_{0}$ penalty","author":"sigurdsson","year":"0","journal-title":"Proc WHISPERS"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1109\/TGRS.2011.2144605"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1109\/TGRS.2012.2191590"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1109\/MSP.2011.940409"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1109\/TGRS.2008.918089"},{"key":"ref3","first-page":"1835","article-title":"Mars&#x2013;Large scale mixing of bright and dark surface materials and implications for analysis of spectral reflectance","volume":"2","author":"singer","year":"0","journal-title":"Proc 10th Lunar Planet Sci Conf"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1002\/0471221317"},{"key":"ref29","first-page":"49","article-title":"Evolution in imaging spectroscopy analysis and sensor signal-to-noise: An examination of how far we have come","author":"clark","year":"0","journal-title":"Proc Summaries 6th Annu JPL Airborne Earth Sci Workshop"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1109\/TGRS.2010.2098413"},{"key":"ref8","first-page":"556","article-title":"Algorithms for non-negative matrix factorization","author":"lee","year":"2000","journal-title":"Advances in Neural Information Processing System"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1109\/TGRS.2004.839806"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1109\/79.974727"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1186\/1687-6180-2012-54"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1109\/JSTARS.2012.2194696"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2012.2212015"},{"key":"ref22","first-page":"325","article-title":"Smooth noisy PCA using a 1st order roughness penalty","author":"sigurdsson","year":"0","journal-title":"Proc IEEE Int Workshop MLSP"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1109\/LSP.2007.898300"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4899-4473-3"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1109\/JSTARS.2013.2242255"},{"key":"ref26","author":"jolliffe","year":"2002","journal-title":"Principal Component Analysis"},{"key":"ref25","author":"bertsekas","year":"1999","journal-title":"Nonlinear Programming"}],"container-title":["IEEE Transactions on Geoscience and Remote Sensing"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/36\/6823767\/06776522.pdf?arnumber=6776522","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,1,12]],"date-time":"2022-01-12T16:56:24Z","timestamp":1642006584000},"score":1,"resource":{"primary":{"URL":"http:\/\/ieeexplore.ieee.org\/document\/6776522\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,11]]},"references-count":34,"journal-issue":{"issue":"11"},"URL":"https:\/\/doi.org\/10.1109\/tgrs.2014.2303155","relation":{},"ISSN":["0196-2892","1558-0644"],"issn-type":[{"value":"0196-2892","type":"print"},{"value":"1558-0644","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,11]]}}}