Search Machine Learning Repository: @incollection{NIPS2014_5449,
    Publisher = {Curran Associates, Inc.},
    Author = {Chris J. Maddison and Daniel Tarlow and Tom Minka},
    Url = {http://papers.nips.cc/paper/5449-a-sampling.pdf},
    Booktitle = {Advances in Neural Information Processing Systems 27},
    Title = {A\ast Sampling},
    Editor = {Z. Ghahramani and M. Welling and C. Cortes and N.d. Lawrence and K.q. Weinberger},
    Year = {2014},
    Pages = {3086--3094}
   }