a photo      

陈 科海 (Chen, Kehai)

Currently, I am a postdoctoral 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: chenkehai (as we know) gmail.com; khchen (as we know) nict.go.jp

 



    

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.

    --He is a recipient of CIPSC (Chinese Information Processing Society of China) Best Ph.D. Thesis Awards in 2020.

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][DBLP]

2021

Syntax in End-to-End Natural Language Processing [Paper and Bib]

     Hai Zhao, Rui Wang, and Kehai Chen

     The 2021 Conference on Empirical Methods in Natural Language Processing (EMNLP-2021-Tutorial), Accepted, 2021

Document-Level Relation Extraction with Reconstruction [Paper and Bib]

     Wang Xu, Kehai Chen, and Tiejun Zhao

     Thirty-Fourth AAAI Conference on Artificial Intelligence (AAAI-2021), February, 2021

Text Compression-aided Transformer Encoding [Paper and Bib]

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

     IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), Accepted, 2021

Modeling Future Cost for Neural Machine Translation [Paper and Bib]

     Chaoqun Duan, Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita, Conghui Zhu, and Tiejun Zhao

     IEEE/ACM Transactions on Audio, Speech, and Language Processing (TASLP), vol. 29, pp. 770-781, 2021

2020

Robust Unsupervised Neural Machine Translation with Adversarial Denoising Training [Paper and Bib]

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

     The 28th International Conference on Computational Linguistics (COLING-2020), Barcelona, Spain, December, 2020

Robust Machine Reading Comprehension by Learning Soft labels [Paper and Bib]

     Zhenyu Zhao, Shuangzhi Wu, Muyun Yang, Kehai Chen, Tiejun Zhao

     The 28th International Conference on Computational Linguistics (COLING-2020), Barcelona, Spain, December, 2020

Towards More Diverse Input Representation for Neural Machine Translation [Paper and Bib]

     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

Content Word Aware Neural Machine Translation [Paper and Bib][Slides]

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

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

Knowledge Distillation for Multilingual Unsupervised Neural Machine Translation [Paper and Bib]

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

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

End-to-end Speech Translation with Adversarial Training[Paper and Bib]

     Xuancai Li, Kehai Chen, Tiejun Zhao, and Muyun Yang

     The First Workshop on Automatic Simultaneous Translation, Seattle, USA, July 2020

Data-dependent Gaussian Prior Objective for Language Generation [Paper and Bib]

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

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

Neural Machine Translation with Universal Visual Representation [Paper and Bib]

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

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

Explicit Sentence Compression for Neural Machine Translation [Paper and Bib]

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

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

A Novel Sentence-Level Agreement Architecture for Neural Machine Translation [Paper and Bib]

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

     IEEE/ACM Transactions on Audio, Speech, and Language Processing (TASLP), vol. 28, pp. 2585-2597, 2020

Unsupervised Neural Machine Translation for Similar and Distant Language Pairs: An Empirical Study [Paper and Bib]

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

     ACM Transactions on Asian and Low-Resource Language Information Processing (TALLIP), Accepted, 2020

Unsupervised Neural Machine Translation with Cross-lingual Language Representation Agreement [Paper and Bib]

     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

A Hierarchical Clustering Approach to Fuzzy Semantic Representation of Rare Words in Neural Machine Translation [Paper and Bib]

     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

2019

NICT’s Machine Translation Systems for CCMT-2019 Translation Task [Paper and Bib][Poster]

     Kehai Chen, Rui Wang, Masao Utiyama, Eiichiro Sumita

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

Recurrent Positional Embedding for Neural Machine Translation [Paper and Bib][Poster]

     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-2020), Hong Kong, China, November 2019

NICT's Unsupervised Neural and Statistical Machine Translation Systems for the WMT19 News Translation Task [Paper and Bib]

     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

Neural Machine Translation with Reordering Embeddings [Paper and Bib][Slides]

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

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

Unsupervised Bilingual Word Embedding Agreement for Unsupervised Neural Machine Translation [Paper and Bib]

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

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

Sentence-Level Agreement for Neural Machine Translation [Paper and Bib]

     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-2019), Florence, Italy, July 2019

Lattice-Based Transformer Encoder for Neural Machine Translation [Paper and Bib]

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

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

Neural Machine Translation with Sentence-level Topic Context [Paper and Bib]

     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

A Bilingual Adversarial Autoencoder for Unsupervised Bilingual Lexicon Induction [Paper and Bib]

     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

Automatic Diagnosis of Cardiac Arrhythmia in Electrocardiograms via Multigranulation Computing [Paper and Bib]

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

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

2018

Syntax-Directed Attention for Neural Machine Translation [Paper and Bib][Poster]

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

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

Sentence Selection and Weighting for Neural Machine Translation Domain Adaptation [Paper and Bib]

     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

Syntax-Based Context Representation for Statistical Machine Translation [Paper and Bib]

     Kehai Chen, Tiejun Zhao, and Muyun Yang

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

A Neural Approach to Source Dependency-Based Context Model for Statistical Machine Translation [Paper and Bib]

     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

2017

Context-Aware Smoothing for Neural Machine Translation [Paper and Bib][Slides]

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

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

Neural Machine Translation with Source Dependency Representation [Paper and Bib][Slides]

     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-2017), Copenhagen, Denmark, September 2017

Instance Weighting for Neural Machine Translation Domain Adaptation [Paper and Bib][Poster]

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

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

Translation Prediction with Source Dependency-Based Context Representation [Paper and Bib][Poster]

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

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


    

Academic Services

Program Committee Member

2021: AAAI (Senior Program Committee), ACL-IJCNLP, NAACL-HLT, EACL, ICASSP

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

2019: AAAI, EMNLP, NAACL-HLT, CCL

2018: EMNLP

2017: ACL

Journal Reviewer

IEEE Transactions on Neural Networks and Learning Systems

IEEE/ACM Transactions on Audio, Speech, and Language Processing

IEEE Transactions on Industrial Informatics

ACM Transactions on Asian and Low-Resource Language Information Processing

ACM Computing Surveys

Artificial Intelligence Review

Natural Language Engineering

Neural Computing & Applications