Lu Chen Assistant Research Professor X-LANCE Lab Department of Computer Science and Engineering Shanghai Jiao Tong University Email: chenlusz [AT] sjtu [DOT] edu [DOT] cn Address: 800 Dongchuan Road, Shanghai 200240, China

Biography

Conversational AI (CoAI) Group @SJTU X-LANCE Lab

Research Interests

• Dialogue Systems: Dialogue Management, Language Understanding and Generation, Pre-trained Dialogue Models
• Question Answering: Machine Reading Comprehension, Web-Based Structural Reading Comprehension, Text Matching
• Natural Language Processing: Semantic Parsing (e.g. text-to-SQL), Pre-trained Language Models

Co-advised Students

• Zhi Chen (Ph.D., 2017.9-)
• Hongshen Xu (Ph.D., 2019.9-)
• Danyang Zhang (Ph.D., 2020.9-)
• Zihan Zhao (Ph.D., 2020.9-)
• Ruisheng Cao (Ph.D., 2021.3-)

Teaching

• Natural Language Processing for CS&AI undergraduates at SJTU, 2021/2022 Fall
• Knowledge Representation and Reasoning for AI undergraduates at SJTU, 2022 Spring

Selected Publication [Google Scholar]

2022

• Dual Learning for Dialogue State Tracking
  Zhi Chen, Lu Chen, Yanbin Zhao, Su Zhu, Kai Yu
  NCMMSC 2022 [Paper] Best Paper Award

• META-GUI: Towards Multi-modal Conversational Agents on Mobile GUI
  Liangtai Sun^*, Xingyu Chen^*, Lu Chen, Tianle Dai, Zichen Zhu, Kai Yu
  EMNLP 2022 [Paper] [Dataset]

• D4: a Chinese Dialogue Dataset for Depression-Diagnosis-Oriented Chat
  Binwei Yao, Chao Shi, Likai Zou, Lingfeng Dai, Mengyue Wu, Lu Chen, Zhen Wang, Kai Yu
  EMNLP 2022 [Paper] [Dataset]

• AdapterShare: Task Correlation Modeling with Adapter Differentiation
  Zhi Chen, Bei Chen, Lu Chen, Kai Yu, Jian-Guang Lou
  EMNLP 2022 [Paper]

• OPAL: Ontology-Aware Pretrained Language Model for End-to-End Task-Oriented Dialogue
  Zhi Chen, Yuncong Liu, Lu Chen, Su Zhu, Mengyue Wu, Kai Yu
  TACL 2022 (Present at EMNLP 2022) [Paper]

• UniDU: Towards A Unified Generative Dialogue Understanding Framework
  Zhi Chen, Lu Chen, Bei Chen, Libo Qin, Yuncong Liu, Su Zhu, Jian-Guang Lou, Kai Yu
  SIGDIAL 2022 [Paper]

• TIE: Topological Information Enhanced Structural Reading Comprehension on Web Pages
  Zihan Zhao, Lu Chen, Ruisheng Cao, Hongshen Xu, Xingyu Chen, Kai Yu
  NAACL 2022 [Paper] [Code]

• LatticeBART: Lattice-to-Lattice Pre-training for Speech Recognition
  Linfeng Dai, Lu Chen, Zhikai Zhou, Kai Yu
  ICASSP 2022 [Paper]

2021

• WebSRC: A Dataset for Web-Based Structural Reading Comprehension
  Xingyu Chen, Zihan Zhao, Lu Chen, Jiabao Ji, Danyang Zhang, Ao Luo, Yuxuan Xiong, Kai Yu
  EMNLP 2021 [Paper] [Code] [Dataset] [Leaderboard]
  This is the first large-scale dataset for multi-modal machine reading comprehension on semi-structured webpages.

• Glyph Enhanced Chinese Character Pre-Training for Lexical Sememe Prediction
  Boer Lyu, Lu Chen, Kai Yu
  EMNLP Findings 2021 [Paper] [Code]

• Few-Shot NLU with Vector Projection Distance and Abstract Triangular CRF
  Su Zhu, Lu Chen, Ruisheng Cao, Zhi Chen, Qingliang Miao, Kai Yu
  NLPCC 2021 [Paper] [Code]

• Relation-Aware Multi-hop Reasoning for Visual Dialogue
  Yao Zhao, Lu Chen, Kai Yu
  NLPCC 2021 [Paper]

• LGESQL: Line Graph Enhanced Text-to-SQL Model with Mixed Local and Non-Local Relations
  Ruisheng Cao, Lu Chen, Zhi Chen, Yanbin Zhao, Su Zhu, Kai Yu
  ACL 2021 [Paper] [Code] [Leaderboard]
  Our Text-to-SQL model LGESQL ranked 1st place on Spider Leaderboard (2021-06-01).

• Decoupled Dialogue Modeling and Semantic Parsing for Multi-Turn Text-to-SQL
  Zhi Chen, Lu Chen, Hanqi Li, Ruisheng Cao, Da Ma, Mengyue Wu, Kai Yu
  ACL Findings 2021 [Paper] [Leaderboard]

• ShadowGNN: Graph Projection Neural Network for Text-to-SQL Parser
  Zhi Chen, Lu Chen, Yanbin Zhao, Ruisheng Cao, Zihan Xu, Su Zhu, Kai Yu
  NAACL 2021 [Paper] [Code] [Leaderboard]

• LET: Linguistic Knowledge Enhanced Graph Transformer for Chinese Short Text Matching
  Boer Lyu, Lu Chen, Su Zhu, Kai Yu
  AAAI 2021 [Paper] [Code]

2020

• Neural Graph Matching Networks for Chinese Short Text Matching
  Lu Chen, Yanbin Zhao, Boer Lv, Lesheng Jin, Zhi Chen, Su Zhu, Kai Yu
  ACL 2020 [Paper]

• Line Graph Enhanced AMR-to-Text Generation with Mix-Order Graph Attention Networks
  Yanbin Zhao, Lu Chen, Zhi Chen, Ruisheng Cao, Su Zhu, Kai Yu
  ACL 2020 [Paper]

• Unsupervised Dual Paraphrasing for Two-stage Semantic Parsing
  Ruisheng Cao, Su Zhu, Chenyu Yang, Chen Liu, Rao Ma, Yanbin Zhao, Lu Chen, Kai Yu
  ACL 2020 [Paper]

• Efficient Context and Schema Fusion Networks for Multi-Domain Dialogue State Tracking
  Su Zhu, Jieyu Li, Lu Chen, Kai Yu
  EMNLP Findings 2020 [Paper]

• Schema-Guided Multi-Domain Dialogue State Tracking with Graph Attention Neural Networks
  Lu Chen, Boer Lyu, Chi Wang, Su Zhu, Bowen Tan, Kai Yu
  AAAI 2020 [Paper]

• Semi-Supervised Text Simplification with Back-Translation and Asymmetric Denoising Autoencoders
  Yanbin Zhao, Lu Chen, Zhi Chen, Kai Yu
  AAAI 2020 [Paper]

• Distributed Structured Actor-Critic Reinforcement Learning for Universal Dialogue Management
  Zhi Chen, Lu Chen, Xiaoyuan Liu, Kai Yu
  IEEE/ACM Transactions on Audio, Speech and Language Processing (TASLP) 2020 [Paper]

2019 and Before

• AgentGraph: Toward Universal Dialogue Management With Structured Deep Reinforcement Learning
  Lu Chen, Zhi Chen, Bowen Tan, Milica Gašić, Kai Yu
  IEEE/ACM Transactions on Audio, Speech and Language Processing (TASLP) 2019 [Paper]

• Structured Dialogue Policy with Graph Neural Networks
  Lu Chen^*, Bowen Tan^*, Sishan Long, Kai Yu
  COLING 2018 [Paper] Area Chair Favorites

• Policy Adaptation for Deep Reinforcement Learning-Based Dialogue Management
  Lu Chen, Cheng Chang, Zhi Chen, Bowen Tan, Milica Gašić, Kai Yu
  ICASSP 2018 [Paper]

• Towards Universal Dialogue State Tracking
  Liliang Ren, Kaige Xie, Lu Chen, Kai Yu
  EMNLP 2018 [Paper]

• Agent-Aware Dropout DQN for Safe and Efficient On-line Dialogue Policy Learning
  Lu Chen, Xiang Zhou, Cheng Chang, Runzhe Yang, Kai Yu
  EMNLP 2017 [Paper]

• Affordable On-line Dialogue Policy Learning
  Cheng Chang^*, Runzhe Yang^*, Lu Chen, Xiang Zhou, Kai Yu
  EMNLP 2017 [Paper]

• On-line Dialogue Policy Learning with Companion Teaching
  Lu Chen, Runzhe Yang, Cheng Chang, Zihao Ye, Xiang Zhou, Kai Yu
  EACL 2017 [Paper]

• Evolvable Dialogue State Tracking for Statistical Dialogue Management
  Kai Yu, Lu Chen, Kai Sun, Qizhe Xie, Su Zhu
  Frontiers of Computer Science 2016 [Paper]

• Constrained Markov Bayesian Polynomial for Efficient Dialogue State Tracking
  Kai Yu, Kai Sun, Lu Chen, Su Zhu
  IEEE/ACM Transactions on Audio, Speech and Language Processing (TASLP) 2015 [Paper]

• Hyper-parameter Optimisation of Gaussian Process Reinforcement Learning for Statistical Dialogue Management
  Lu Chen, Pei-Hao Su, Milica Gašić
  SIGDIAL 2015 [Paper]

• 任务型人机对话系统中的认知技术--概念、进展及其未来
  俞凯, 陈露, 陈博, 孙锴, 朱苏
  计算机学报 2015 [Paper]

Professional Services

Programme Committee Member

• 2022: ACL(Main/Demo Track), NAACL(Main/Demo Track), EMNLP, AAAI, NeurIPS
• 2021: ACL(Main/Demo Track), NAACL(Main/Demo Track), AAAI, NLPCC

Journal Reviewer

• Transactions of the Association for Computational Linguistics (TACL)
• IEEE/ACM Transactions on Audio, Speech and Language Processing (TASLP)
• ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM)
• IEEE Intelligent Systems
• Journal of Computer Science and Technology (JCST)
• 自动化学报

Honors and Awards

• 2022 NCMMSC Best Paper Award
• 2021 CCF Outstanding Doctoral Dissertation Award Nomination
• 2020 Shanghai Jiao Tong University (SJTU) Outstanding Doctoral Dissertation Award
• 2018 COLING Area Chair Favorites

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