@InProceedings{NIPS:Nakajima+:2014,
    author = "Nakajima, S. and Sato, I. and Sugiyama, M. and Watanabe, K. and Kobayashi, H.",
    title = "Analysis of Variational {B}ayesian Latent {D}irichlet Allocation: Weaker Sparsity than {MAP}",
    booktitle = "Advances in Neural Information Processing Systems 27 (NIPS2014)",
    year = "2014"
}