A novel domain adaption approach for neural machine translation
by Jin Liu; Xin Zhang; Xiaohu Tian; Jin Wang; Arun Kumar Sangaiah
International Journal of Computational Science and Engineering (IJCSE), Vol. 22, No. 4, 2020

Abstract: Neural machine translation has been widely adopted in modern machine translation as it brings the state-of-the-art performance to large-scale parallel corpora. For real-world applications, high-quality translation for text in a specific domain is crucial. However, performances of general neural machine models drop when being applied in a specific domain. To alleviate this issue, this paper presents a novel method of machine translation, which explores both model fusion algorithm and logarithmic linear interpolation. The method can improve the performance of in-domain translation model, while preserving or even improving the performance of out-domain translation model. This paper has carried out extensive experiments on proposed translation model using the public United Nations corpus. The bilingual evaluation understudy (BLEU) score of the in-domain corpus and the out-domain corpus reaches 30.27 and 43.17 respectively, which shows a certain improvement over existing methods.

Online publication date: Tue, 08-Sep-2020

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