Search Machine Learning Repository: @incollection{NIPS2014_5611,
    Publisher = {Curran Associates, Inc.},
    Author = {Cong H. Lim and Stephen Wright},
    Url = {http://papers.nips.cc/paper/5611-beyond-the-birkhoff-polytope-convex-relaxations-for-vector-permutation-problems.pdf},
    Booktitle = {Advances in Neural Information Processing Systems 27},
    Title = {Beyond the Birkhoff Polytope: Convex Relaxations for Vector Permutation Problems},
    Editor = {Z. Ghahramani and M. Welling and C. Cortes and N.d. Lawrence and K.q. Weinberger},
    Year = {2014},
    Pages = {2168--2176}
   }