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Composing graphical models with neural networks for structured representations and fast inference
Matthew Johnson · David Duvenaud · Alex Wiltschko · Ryan Adams · Sandeep R Datta

Mon Dec 05 09:00 AM -- 12:30 PM (PST) @ Area 5+6+7+8 #57

We propose a general modeling and inference framework that combines the complementary strengths of probabilistic graphical models and deep learning methods. Our model family composes latent graphical models with neural network observation likelihoods. For inference, we use recognition networks to produce local evidence potentials, then combine them with the model distribution using efficient message-passing algorithms. All components are trained simultaneously with a single stochastic variational inference objective. We illustrate this framework by automatically segmenting and categorizing mouse behavior from raw depth video, and demonstrate several other example models.

Author Information

Matthew Johnson (MIT)
David Duvenaud (University of Toronto)
Alex Wiltschko (Harvard University and Twitter)
Ryan Adams (Princeton University)
Sandeep R Datta (Harvard Medical School)

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