@article{clusteringisefficientforapproximate,
  title = {Clustering is Efficient for Approximate Maximum Inner Product Search},
  author = {Alex Auvolat and Sarath Chandar and Pascal Vincent and Hugo Larochelle and Yoshua Bengio},
  year = {2015},
  eprint = {1507.05910},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1507.05910v3},
}