Learning General and Reusable Features via Racecar-Training

Anonymous

Sep 25, 2019 ICLR 2020 Conference Blind Submission readers: everyone Show Bibtex
  • TL;DR: We propose a novel bi-directional training approach for learning of general features.
  • Abstract: We propose a novel training approach for improving the learning of generalizing features in neural networks. We augment the network with a reverse pass which aims for reconstructing the full sequence of internal states of the network. Despite being a surprisingly simple change, we demonstrate that this forward-backward training approach, i.e. racecar training, leads to significantly more general features to be extracted from a given data set. We demonstrate in our paper that a network obtained in this way is continually trained for the original task, it outperforms baseline models trained in a regular fashion. This improved performance is visible for a wide range of learning tasks from classification, to regression and stylization. In addition, networks trained with our approach exhibit improved performance for task transfers. We additionally analyze the mutual information of our networks to explain the improved generalizing capabilities.
  • Keywords: transfer learning, neural networks, generalization, reusable features
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