Timezone: »

Sequential Neural Models with Stochastic Layers
Marco Fraccaro · Søren Kaae Sønderby · Ulrich Paquet · Ole Winther

Tue Dec 06 08:00 AM -- 08:20 AM (PST) @ Area 1 + 2

How can we efficiently propagate uncertainty in a latent state representation with recurrent neural networks? This paper introduces stochastic recurrent neural networks which glue a deterministic recurrent neural network and a state space model together to form a stochastic and sequential neural generative model. The clear separation of deterministic and stochastic layers allows a structured variational inference network to track the factorization of the model’s posterior distribution. By retaining both the nonlinear recursive structure of a recurrent neural network and averaging over the uncertainty in a latent path, like a state space model, we improve the state of the art results on the Blizzard and TIMIT speech modeling data sets by a large margin, while achieving comparable performances to competing methods on polyphonic music modeling.

Author Information

Marco Fraccaro (DTU)
Søren Kaae Sønderby (KU)
Ulrich Paquet (DeepMind)
Ole Winther (DTU)

More from the Same Authors