Search Machine Learning Repository: @incollection{NIPS2014_5408,
    Publisher = {Curran Associates, Inc.},
    Author = {Emile Richard and Guillaume R. Obozinski and Jean-philippe Vert},
    Url = {http://papers.nips.cc/paper/5408-tight-convex-relaxations-for-sparse-matrix-factorization.pdf},
    Booktitle = {Advances in Neural Information Processing Systems 27},
    Title = {Tight convex relaxations for sparse matrix factorization},
    Editor = {Z. Ghahramani and M. Welling and C. Cortes and N.d. Lawrence and K.q. Weinberger},
    Year = {2014},
    Pages = {3284--3292}
   }