Papers › Adapting the Size of Artificial Neural Networks Using Dynamic Auto-Sizing
Adapting the Size of Artificial Neural Networks Using Dynamic Auto-Sizing
Vojtech Cahlik, Pavel Kordik, Miroslav Cepek
We introduce dynamic auto-sizing, a novel approach to training artificial neural networks which allows the models to automatically adapt their size to the problem domain. The size of the models can be further controlled during the learning process by modifying the applied strength of regularization. The ability of dynamic auto-sizing models to expand or shrink their hidden layers is achieved by periodically growing and pruning entire units such as neurons or filters. For this purpose, we introduce weighted L1 regularization, a novel regularization method for inducing structured sparsity. Besides analyzing the behavior of dynamic auto-sizing, we evaluate predictive performance of models trained using the method and show that such models can provide a predictive advantage over traditional approaches.
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