a photo      

陈 科海 (Chen, Kehai)

Currently, I am a researcher of Advanced Translation Technology Laboratory (ATT-ASTREC), National Institute of Information and Communications Technology (NICT), Kyoto, Japan.

My research interesting focuses on Machine Translation, and Natural Language Processing

E-mail: khchen (as we know) nict.go.jp; chenkehai (as we know) gmail.com

Taken in Harbin, 2018
 



    

Experience

Postdoctoral Researcher in Advanced Translation Technology Laboratory, National Institute of Information and Communications Technology, Kyoto, Japan, 2018.11-Now.

Ph.D in School of Computer Science of Technology, Harbin Institute of Technology (HIT), supervised by Prof. Tiejun Zhao, Harbin, China, 2013.09-2018.10.

    --Internship Research Fellow, NICT, co-supervised with Masao Utiyama, Rui Wang, Lemao Liu, Akihiro Tamura, and Eiichiro Sumita, 2017.01~2018.01.

Master in Computer Science, University of Chinese Academy of Sciences (UCAS), Beijing, China, 2010.09-2013.07.

Bachelor in Computer Science, Xi'an University of Technology (XAUT), Xi'an, China, 2006.09-2010.07.


    

Selected Publications [Google Scholar][Semantic Scholar]

Journals

Towards More Diverse Input Representation for Neural Machine Translation

Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita, Tiejun Zhao, Muyun Yang, and Hai Zhao

IEEE/ACM Transactions on Audio, Speech, and Language Processing (TASLP), vol. 28, pp. 1586-1597, December 2020

[Paper and Bib]

Unsupervised Neural Machine Translation with Cross-lingual Language Representation Agreement

Haipeng Sun, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, and Tiejun Zhao

IEEE/ACM Transactions on Audio, Speech, and Language Processing (TASLP), vol. 28, pp. 1170-1182, December 2020

[Paper and Bib]

A Hierarchical Clustering Approach to Fuzzy Semantic Representation of Rare Words in Neural Machine Translation

Muyun Yang, Shujie Liu, Kehai Chen*, Hongyang Zhang, Enbo Zhao, and Tiejun Zhao

IEEE Transactions on Fuzzy Systems (TFS), vol. 28, no. 5, pp. 992-1002, May 2020

[Paper and Bib]

Neural Machine Translation with Target-Attention Model

Mingming Yang, Min Zhang, Kehai Chen, Rui Wang, and Tiejun Zhao

IEICE Transactions on Information and Systems, Vol.E103-D, No.03, pp.684-694, 2020

[Paper and Bib]

Neural Machine Translation with Sentence-level Topic Context

Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita, and Tiejun Zhao

IEEE/ACM Transactions on Audio, Speech, and Language Processing (TASLP), vol. 27, no. 12, pp. 1970-1984, December 2019

[Paper and Bib]

A Bilingual Adversarial Autoencoder for Unsupervised Bilingual Lexicon Induction

Xuefeng Bai, Hailong Cao, Kehai Chen, and Tiejun Zhao

IEEE/ACM Transactions on Audio, Speech, and Language Processing (TASLP), vol. 27, no. 10, pp. 1639-1648, October 2019

[Paper and Bib]

Automatic Diagnosis of Cardiac Arrhythmia in Electrocardiograms via Multigranulation Computing

Fenghuan Li, Kehai Chen*, Jie Ling, Yinwei Zhan, and Gunasekaran Manogaran

Applied Soft Computing, Volume 80, Pages 400-413, July 2019

[Paper and Bib]

Syntax-Based Context Representation for Statistical Machine Translation

Kehai Chen, Tiejun Zhao, and Muyun Yang

IEICE Transactions on Information and Systems, vol. E101.D, no. 12, pp. 3226-3237, December 2018

[Paper and Bib]

Sentence Selection and Weighting for Neural Machine Translation Domain Adaptation

Rui Wang, Masao Utiyama, Andrew Finch, Lemao Liu, Kehai Chen, and Eiichro Sumita

IEEE/ACM Transactions on Audio, Speech, and Language Processing (TASLP), vol. 26, no. 10, pp. 1727-1741, October 2018

[Paper and Bib]

A Neural Approach to Source Dependency-Based Context Model for Statistical Machine Translation

Kehai Chen, Tiejun Zhao, Muyun Yang, Lemao Liu, Akihiro Tamura, Rui Wang, Masao Utiyama, and Eiichro Sumita

IEEE/ACM Transactions on Audio, Speech, and Language Processing (TASLP), vol. 26, no. 2, pp. 266-280, February 2018

[Paper and Bib]


Conferences


Content Word Aware Neural Machine Translation

Kehai Chen, Rui Wang, Masao Utiyama, and Eiichiro Sumita

The 58th Annual Meeting of the Association for Computational Linguistics (ACL), Seattle, USA, July 2020

[Paper and Bib]

Knowledge Distillation for Multilingual Unsupervised Neural Machine Translation

Haipeng Sun, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, and Tiejun Zhao

The 58th Annual Meeting of the Association for Computational Linguistics (ACL), Seattle, USA, July 2020

[Paper and Bib]

Data-dependent Gaussian Prior Objective for Language Generation

Zuchao Li, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, Zhuosheng Zhang, and Hai Zhao

Eighth International Conference on Learning Representations (ICLR), Addis Ababa, Ethiopia, April 2020

[Paper and Bib]

Neural Machine Translation with Universal Visual Representation

Zhuosheng Zhang, Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita, Zuchao Li, and Hai Zhao

Eighth International Conference on Learning Representations (ICLR), Addis Ababa, Ethiopia, April 2020

[Paper and Bib]

Explicit Sentence Compression for Neural Machine Translation

Zuchao Li, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, Zhuosheng Zhang, and Hai Zhao

Thirty-Fourth AAAI Conference on Artificial Intelligence (AAAI), New York, USA, February 2020

[Paper and Bib]

NICT’s Machine Translation Systems for CCMT-2019 Translation Task

Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita

China Conference on Machine Translation (CCMT-2019), Nanchang, China, Semtember 2019

[Paper and Bib][Poster]

Recurrent Positional Embedding for Neural Machine Translation

Kehai Chen, Rui Wang, Masao Utiyama, and Eiichiro Sumita

The 2019 Conference on Empirical Methods in Natural Language Processing and The 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP), Hong Kong, China, November 2019

[Paper and Bib][Poster]

NICT's Unsupervised Neural and Statistical Machine Translation Systems for the WMT19 News Translation Task

Benjamin Marie, Haipeng Sun, Rui Wang, Kehai Chen, Atsushi Fujita, Masao Utiyama and Eiichiro Sumita

The 4th Conference on Machine Translation (WMT-2019), Florence, Italy, July 2019

Note: 1st in the only unsupervised MT task (German-Czech) by BLEU and human evaluation

[Paper and Bib]

Neural Machine Translation with Reordering Embeddings

Kehai Chen, Rui Wang, Masao Utiyama, and Eiichiro Sumita

The 57th Annual Meeting of the Association for Computational Linguistics (ACL), Florence, Italy, July 2019

[Paper and Bib][Slides]

Unsupervised Bilingual Word Embedding Agreement for Unsupervised Neural Machine Translation

Haipeng Sun, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, and Tiejun Zhao

The 57th Annual Meeting of the Association for Computational Linguistics (ACL), Florence, Italy, July 2019

[Paper and Bib]

Sentence-Level Agreement for Neural Machine Translation

Mingming Yang, Rui Wang, Kehai Chen, Masao Utiyama, Eiichiro Sumita, Min Zhang, and Tiejun Zhao

The 57th Annual Meeting of the Association for Computational Linguistics (ACL), Florence, Italy, July 2019

[Paper and Bib]

Lattice-Based Transformer Encoder for Neural Machine Translation

Fengshun Xiao, Jiangtong Li, Hai Zhao, Rui Wang, and Kehai Chen

The 57th Annual Meeting of the Association for Computational Linguistics (ACL), Florence, Italy, July 2019

[Paper and Bib]

Syntax-Directed Attention for Neural Machine Translation

Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita, and Tiejun Zhao

The Thirty-Second AAAI Conference on Artificial Intelligence (AAAI), New Orleans, Lousiana, USA, February 2018

[Paper and Bib][Poster]

Context-Aware Smoothing for Neural Machine Translation

Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita, and Tiejun Zhao

The 8th International Joint Conference on Natural Language Processing (IJCNLP), Chinese Taipei, November 2017

[Paper and Bib][Slides]

Neural Machine Translation with Source Dependency Representation

Kehai Chen, Rui Wang, Masao Utiyama, Lemao Liu, Akihiro Tamura, Eiichiro Sumita, and Tiejun Zhao

The 2017 Conference on Empirical Methods in Natural Language Processing (EMNLP), Copenhagen, Denmark, September 2017

[Paper and Bib][Slides]

Instance Weighting for Neural Machine Translation Domain Adaptation

Rui Wang, Masao Utiyama, Lemao Liu, Kehai Chen, and Eiichro Sumita

The 2017 Conference on Empirical Methods in Natural Language Processing (EMNLP), Copenhagen, Denmark, September 2017

[Paper and Bib][Poster]

Translation Prediction with Source Dependency-Based Context Representation

Kehai Chen, Tiejun Zhao, Muyun Yang, and Lemao Liu

The Thirty-First AAAI Conference on Artificial Intelligence (AAAI), San Francisco, California, USA, February 2017

[Paper and Bib][Poster]

Improving Dependency Parsing on Clinical Text with Syntactic Clusters from Web Text

Xiuming Qiao, Hailong Cao, Tiejun Zhao, and Kehai Chen

The International Conference on Neural Information Processing (ICONIP), Kyoto, Japan, September 2016

[Paper and Bib]



    

Academic Services

Program Committee Member

2020: AAAI, ACL, EMNLP, NeurIPS, NLPCC, AACL-IJCNLP, CCL

2019: AAAI, EMNLP, NAACL, CCL

2018: EMNLP

2017: ACL

Journal Reviewer

IEEE/ACM Transactions on ASLP, ACM Computing Surveys, Artificial Intelligence Review, ACM Transactions on ALLIP, Natural Language Engineering, Neural Computing & Applications, etc.