arXiv 2104.033912021-04-07cs.CL

Interpreting Verbal Metaphors by Paraphrasing

University of Aberdeen（阿伯丁大学）；University of Sheffield（谢菲尔德大学）；University of Surrey（萨里大学）

Rui Mao, Chenghua Lin, Frank Guerin

英文摘要：

Metaphorical expressions are difficult linguistic phenomena, challenging diverse Natural Language Processing tasks. Previous works showed that paraphrasing a metaphor as its literal counterpart can help machines better process metaphors on downstream tasks. In this paper, we interpret metaphors with BERT and WordNet hypernyms and synonyms in an unsupervised manner, showing that our method significantly outperforms the state-of-the-art baseline. We also demonstrate that our method can help a machine translation system improve its accuracy in translating English metaphors to 8 target languages.

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