Tractable loss function and color image generation of multinary restricted Boltzmann machine

27 Nov 2020  ·  Juno Hwang, Wonseok Hwang, Junghyo Jo ·

The restricted Boltzmann machine (RBM) is a representative generative model based on the concept of statistical mechanics. In spite of the strong merit of interpretability, unavailability of backpropagation makes it less competitive than other generative models. Here we derive differentiable loss functions for both binary and multinary RBMs. Then we demonstrate their learnability and performance by generating colored face images.

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