Dual learning has attracted much attention in machine learning, computer vision and natural language processing communities. The core idea of dual learning is to leverage the duality between the primal task (mapping from domain X to domain Y) and dual task (mapping from domain Y to X) to boost the performances of both tasks. Existing dual learning framework forms a system with two agents (one primal model and one dual model) to utilize such duality. In this paper, we extend this framework by introducing multiple primal and dual models, and propose the multi-agent dual learning framework. Experiments on neural machine translation and image translation tasks demonstrate the effectiveness of the new framework.
In particular, we set a new record on IWSLT 2014 German-to-English translation with a 35.44 BLEU score, achieve a 31.03 BLEU score on WMT 2014 English-to-German translation with over 2.6 BLEU improvement over the strong Transformer baseline, and set a new record of 49.61 BLEU score on the recent WMT 2018 English-to-German translation.
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ParallelAttentionMechanismsinNeuralMachine Translation
Recent papers in neural machine translation have proposed the strict use of attention mechanisms over previous stan- dards such as recurrent and convolutional neural networks (RNNs and CNNs). We propose that by running traditionally stacked encoding branches from encoder-decoder attention- focused architectures in parallel, that even more sequential operations can be removed from the model and thereby de- crease training time. In particular, we modify the recently published attention-based architecture called Transformer by Google, by replacing sequential attention modules with par- allel ones, reducing the amount of training time and substan- tially improving BLEU scores at the same time. Experiments over the English to German and English to French translation tasks show that our model establishes a new state of the art.
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- Award ID(s):
- 1659788
- NSF-PAR ID:
- 10098857
- Date Published:
- Journal Name:
- International Conference on Machine Learning Applications
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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