Ariadna Quattoni Xavier Carreras Michael Collins Trevor Darrell An efficient projection for <i>l</i><sub>1</sub>,<sub>infinity</sub> regularization. 108 2009 ICML http://doi.acm.org/10.1145/1553374.1553484 conf/icml/2009 db/conf/icml/icml2009.html#QuattoniCCD09