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Language Modeling with Gated Convolutional Networks

2016-12-23ICML 2017Code Available1· sign in to hype

Yann N. Dauphin, Angela Fan, Michael Auli, David Grangier

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Abstract

The pre-dominant approach to language modeling to date is based on recurrent neural networks. Their success on this task is often linked to their ability to capture unbounded context. In this paper we develop a finite context approach through stacked convolutions, which can be more efficient since they allow parallelization over sequential tokens. We propose a novel simplified gating mechanism that outperforms Oord et al (2016) and investigate the impact of key architectural decisions. The proposed approach achieves state-of-the-art on the WikiText-103 benchmark, even though it features long-term dependencies, as well as competitive results on the Google Billion Words benchmark. Our model reduces the latency to score a sentence by an order of magnitude compared to a recurrent baseline. To our knowledge, this is the first time a non-recurrent approach is competitive with strong recurrent models on these large scale language tasks.

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Benchmark Results

DatasetModelMetricClaimedVerifiedStatus
One Billion WordGCNN-14 bottleneckPPL31.9Unverified
WikiText-103GCNN-8Test perplexity37.2Unverified
WikiText-103GCNN-8Test perplexity44.9Unverified

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