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Reinforcement Learning Based Text Style Transfer without Parallel Training Corpus

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Reinforcement Learning Based Text Style Transfer without Parallel Training Corpus

NAACL-HLT 2019

Paper: https://arxiv.org/pdf/1903.10671.pdf

Abstract:
Text style transfer rephrases a text from a
source style (e.g., informal) to a target style
(e.g., formal) while keeping its original meaning. Despite the success existing works have
achieved using a parallel corpus for the two
styles, transferring text style has proven significantly more challenging when there is no
parallel training corpus. In this paper, we address this challenge by using a reinforcementlearning-based generator-evaluator architecture. Our generator employs an attentionbased encoder-decoder to transfer a sentence
from the source style to the target style. Our
evaluator is an adversarially trained style discriminator with semantic and syntactic constraints that score the generated sentence for
style, meaning preservation, and fluency. Experimental results on two different style transfer tasks (sentiment transfer and formality
transfer) show that our model outperforms
state-of-the-art approaches. Furthermore, we
perform a manual evaluation that demonstrates
the effectiveness of the proposed method using
subjective metrics of generated text quality.

Видео Reinforcement Learning Based Text Style Transfer without Parallel Training Corpus канала DSAI by Dr. Osbert Tay
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23 июля 2019 г. 10:53:53
00:17:18
Яндекс.Метрика