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Improving the Diversity of Unsupervised Paraphrasing with Embedding Outputs

2021-10-25 19:33:38
Monisha Jegadeesan, Sachin Kumar, John Wieting, Yulia Tsvetkov
arXiv_CL
       
Abstract

We present a novel technique for zero-shot paraphrase generation. The key contribution is an end-to-end multilingual paraphrasing model that is trained using translated parallel corpora to generate paraphrases into "meaning spaces" -- replacing the final softmax layer with word embeddings. This architectural modification, plus a training procedure that incorporates an autoencoding objective, enables effective parameter sharing across languages for more fluent monolingual rewriting, and facilitates fluency and diversity in generation. Our continuous-output paraphrase generation models outperform zero-shot paraphrasing baselines when evaluated on two languages using a battery of computational metrics as well as in human assessment.

Abstract (translated)

URL

https://arxiv.org/abs/2110.13231

PDF

https://arxiv.org/pdf/2110.13231.pdf

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