Guchun Zhang


2018

pdf bib
Alibaba’s Neural Machine Translation Systems for WMT18
Yongchao Deng | Shanbo Cheng | Jun Lu | Kai Song | Jingang Wang | Shenglan Wu | Liang Yao | Guchun Zhang | Haibo Zhang | Pei Zhang | Changfeng Zhu | Boxing Chen
Proceedings of the Third Conference on Machine Translation: Shared Task Papers

This paper describes the submission systems of Alibaba for WMT18 shared news translation task. We participated in 5 translation directions including English ↔ Russian, English ↔ Turkish in both directions and English → Chinese. Our systems are based on Google’s Transformer model architecture, into which we integrated the most recent features from the academic research. We also employed most techniques that have been proven effective during the past WMT years, such as BPE, back translation, data selection, model ensembling and reranking, at industrial scale. For some morphologically-rich languages, we also incorporated linguistic knowledge into our neural network. For the translation tasks in which we have participated, our resulting systems achieved the best case sensitive BLEU score in all 5 directions. Notably, our English → Russian system outperformed the second reranked system by 5 BLEU score.

2014

pdf bib
Estimating Grammar Correctness for a Priori Estimation of Machine Translation Post-Editing Effort
Nicholas H. Kirk | Guchun Zhang | Georg Groh
Proceedings of the EACL 2014 Workshop on Humans and Computer-assisted Translation