2016

Neural Autoregressive Distribution Estimation

Uria, Benigno, Côté, Marc-Alexandre, Gregor, Karol et al.

Understand

We present Neural Autoregressive Distribution Estimation (NADE) models, which are neural network architectures applied to the problem of unsupervised distribution and density estimation.

  • They leverage the probability product rule and a weight sharing scheme inspired from restricted Boltzmann machines, to yield an estimator that is both tractable and has good generalization performance.
  • We discuss how they achieve competitive performance in modeling both binary and real-valued observations.
  • We also present how deep NADE models can be trained to be agnostic to the ordering of input dimensions used by the autoregressive product rule decomposition.

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