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Improved Arabic–Chinese Machine Translation with Linguistic Input Features

1
School of Information Science and Engineering, Central South University, Changsha 410083, China
2
Academy of Financial and Economic Big Data, Hunan University of Finance and Economics (HUFE), Changsha 410205, China
3
School of Computer Science and Engineering, South China University of Technology (SCUT), Guangzhou 510006, China
*
Author to whom correspondence should be addressed.
Future Internet 2019, 11(1), 22; https://doi.org/10.3390/fi11010022
Received: 4 December 2018 / Revised: 7 January 2019 / Accepted: 16 January 2019 / Published: 19 January 2019
(This article belongs to the Section Big Data and Augmented Intelligence)
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Abstract

This study presents linguistically augmented models of phrase-based statistical machine translation (PBSMT) using different linguistic features (factors) on the top of the source surface form. The architecture addresses two major problems occurring in machine translation, namely the poor performance of direct translation from a highly-inflected and morphologically complex language into morphologically poor languages, and the data sparseness issue, which becomes a significant challenge under low-resource conditions. We use three factors (lemma, part-of-speech tags, and morphological features) to enrich the input side with additional information to improve the quality of direct translation from Arabic to Chinese, considering the importance and global presence of this language pair as well as the limitation of work on machine translation between these two languages. In an effort to deal with the issue of the out of vocabulary (OOV) words and missing words, we propose the best combination of factors and models based on alternative paths. The proposed models were compared with the standard PBSMT model which represents the baseline of this work, and two enhanced approaches tokenized by a state-of-the-art external tool that has been proven to be useful for Arabic as a morphologically rich and complex language. The experiment was performed with a Moses decoder on freely available data extracted from a multilingual corpus from United Nation documents (MultiUN). Results of a preliminary evaluation in terms of BLEU scores show that the use of linguistic features on the Arabic side considerably outperforms baseline and tokenized approaches, the system can consistently reduce the OOV rate as well. View Full-Text
Keywords: Arabic morphology; factored translation model; phrase-based machine translation; pre-processing; statistical machine translation Arabic morphology; factored translation model; phrase-based machine translation; pre-processing; statistical machine translation
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Aqlan, F.; Fan, X.; Alqwbani, A.; Al-Mansoub, A. Improved Arabic–Chinese Machine Translation with Linguistic Input Features. Future Internet 2019, 11, 22.

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