Recurrent Neural Network Regularization

This paper presents a method for applying dropout regularization to LSTMs by restricting it to non-recurrent connections, solving prior issues with overfitting in recurrent networks. It significantly improves generalization across diverse tasks including language modeling, speech recognition, machine translation, and image captioning. The technique allows larger RNNs to be effectively trained without compromising their ability to memorize long-term dependencies. This work helped establish dropout as a viable regularization strategy for RNNs and influenced widespread adoption in sequence modeling applications.

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Introduction

We present a simple regularization technique for Recurrent Neural Networks (RNNs) with Long Short-Term Memory (LSTM) units. Dropout, the most successful technique for regularizing neural networks, does not work well with RNNs and LSTMs. In this paper, we show how to correctly apply dropout to LSTMs, and show that it substantially reduces overfitting on a variety of tasks. These tasks include language modeling, speech recognition, image caption generation, and machine translation.

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Websitearxiv.org
Published date2014/09/08

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