Masked Adversarial Generation for Neural Machine Translation

• URL: http://arxiv.org/abs/2109.00417v1
• Date: Wed, 1 Sep 2021 14:56:37 GMT
• Title: Masked Adversarial Generation for Neural Machine Translation
• Authors: Badr Youbi Idrissi, St\'ephane Clinchant
• Abstract summary: We learn to attack a model by training an adversarial generator based on a language model. Experiments show that it improves the robustness of machine translation models, while being faster than competing methods.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Attacking Neural Machine Translation models is an inherently combinatorial task on discrete sequences, solved with approximate heuristics. Most methods use the gradient to attack the model on each sample independently. Instead of mechanically applying the gradient, could we learn to produce meaningful adversarial attacks ? In contrast to existing approaches, we learn to attack a model by training an adversarial generator based on a language model. We propose the Masked Adversarial Generation (MAG) model, that learns to perturb the translation model throughout the training process. The experiments show that it improves the robustness of machine translation models, while being faster than competing methods.

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