Xi Chen（陈曦）

Team Leader, Jarvis Lab, Tencent Research Interests: Natural Language Processing, Knowledge Graph, Medical AI WeChat: zjuchenxi E-post: jasonxchen [@] tencent [DOT] com

About me

Hi! I am Xi Chen. I got my Ph.D in College of Computer Science in Zhejiang University, with the supervision of Prof. Huajun Chen. In 2015, I spent several months as a visiting student at Prof. Calton Pu's lab in Georgia Tech University.

From 2015 to 2017, I was a research intern at Business Platform-Data Service Department of Alibaba (Product Knowledge Graph Group). From 2017 to 2018, I was a senior Researcher at Huawei Noah Lab. Currently, I am a senior researcher at Tencent Jarvis Lab (Leader of KG and NLP Team).

We are hiring interns and full-time employees on NLP, KG and medical AI. Feel free to send me (jasonxchen@tencent.com) your CV if you are interested.

Recent Papers（* equal contribution or corresponding author)

• Online Disease Self-diagnosis with Inductive Heterogeneous Graph Convolutional Networks
  Zifeng Wang, Rui Wen, Xi Chen ^*, Shilei Cao, Buyue Qian, & Yefeng Zheng.
  WWW 2021. Paper

• Enquire One's Parent and Child Before Decision: Fully Exploit Hierarchical Structure for Self-Supervised Taxonomy Expansion
  Suyuchen Wang, Ruihui Zhao, Xi Chen, Yefeng Zheng, Bang Liu
  WWW 2021. Paper

• Learning Robust Patient Representations from Multi-modal Electronic Health Records: A Supervised Deep Learning Approach.
  Xianli Zhang, Buyue Qian, Yang Li, Yang Liu, Xi Chen, Chong Guan, YefengZheng, and Chen Li.
  InProceedings of the 2021 SIAM International Conference on Data Mining (SDM)

• Forecasting the long-term trend of COVID-19 epidemic using a dynamic model
  Jichao Sun, Xi Chen^*, Ziheng Zhang, Shengzhang Lai, Bo Zhao, Hualuo Liu, ShuojiaWang, Wenjing Huan, Ruihui Zhao, ManTat Alexander Ng, Yefeng Zheng
  Scientific reports 10 (1), 1-10 Paper

• Information Theoretic Counterfactual Learning from Missing-Not-At-Random Feedback
  Zifeng Wang, Xi Chen, Rui Wen, Shao-Lun Huang, Ercan Kuruoglu, Yefeng Zheng.
  NIPS 2020. Paper

• Summarizing Chinese Medical Answer with Graph Convolution Networks and Question-focused Dual Attention
  Ningyu Zhang, Shumin Deng, Juan Li, Xi Chen, Wei Zhang, Huajun Chen
  In Findings of EMNLP (EMNLP), 2020 Paper

• An Industry Evaluation of Embedding-based Entity Alignment.
  Ziheng Zhang, Jiaoyan Chen, Xi Chen^*, Hualuo Liu, Yuejia Xiang, Bo Liu, Yefeng Zheng.
  COLING 2020 Paper

• Correcting knowledge base assertions.
  Jiaoyan Chen, Xi Chen, I Horrocks, E B. Myklebust, E Jimenez-Ruiz.
  WWW 2020. Paper

• Long-tail relation extraction via knowledge graph embeddings and graph convolution networks.
  Ningyu Zhang, Shumin Deng, Zhanlin Sun, Guanying Wang, Xi Chen, Wei Zhang, Huajun Chen.
  NAACL 2019 Paper

• Attention-Based Capsule Networks with Dynamic Routing for Relation Extraction
  Ningyu Zhang, Shumin Deng, Zhanlin Sun, Xi Chen, Wei Zhang, Huajun Chen
  In Proceedings of the Conference on Empirical Methods in Natural Language Processing (EMNLP), 2018 Paper

Honors

• Got 2nd in the Track of entity and semantic relation extraction task on Semeval 2021 （2/100+）

• Got 2nd on SuperGLUE

• Got 1st on Military Named Entity Regnition CCKS 2020（1/213）

• Got 2nd on the Biendata Relation Extraction Competition 2020（2/365）

• Got 1st on the Biendata Named Entity Recognition Competition 2020（1/588）

• Got 2st on the Track of CHIP Challenge Medical Relation Extraction 2020（2/639）

• Got 1st on the Track of CHIP Challenge Medical Named Entity Extraction 2020（1/753）