Long Chen 


Tencent AI Lab

Email: zjuchenlong AT gmail.com

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I am a researcher at Tencent AI Lab (Jul. 2020 - present). Before this job, I obtained my Ph.D. degree in computer science from DCD Lab at Zhejiang University, and my Ph.D. advisor is Prof. Jun Xiao (Sep. 2015 - Jun. 2020). Before this, I obtained my bachelor's degree in electronic and information engineering from Dalian University of Technology (Sep. 2011 - Jun. 2015).
For my research, I am fortunate enough to have opportunities to work closely with:
         • Prof. Shih-Fu Chang at Columbia University
         • Dr. Wei Liu at Tencent AI Lab
         • Prof. Hanwang Zhang at Nanyang Technological University
         • Prof. Tat-Seng Chua at National University of Singapore
My primary research interests are Computer Vision and Multimodal Analysis. Particularly, my current research focuses on three different levels of visual scene understanding:
        1. instance-level recognition (e.g., visual recognition, detection, and segmentation);
        2. scene-level recognition (e.g., scene graph generation);
        3. scene-level reasoning (e.g., visual-language tasks).


[Dec. 2020]   Two papers are accepted by AAAI 2021.
[Jun. 2020]   I attended CVPR 2020 Doctoral Consortium, mentored by Prof. William Freeman.
[Apr. 2020]   One paper is accepted by SIGIR 2020.
[Feb. 2020]   One paper is accepted by CVPR 2020.
[Nov. 2019]   One paper is accepted by AAAI 2020 as oral presentation.

Selected Publications [More]

Ref-NMS: Breaking Proposal Bottlenecks in Two-Stage Referring Expression Grounding
Long Chen*, Wenbo Ma*, Jun Xiao, Hanwang Zhang, Shih-Fu Chang
AAAI 2021   • arXiv   • Codes   

Counterfactual Samples Synthesizing for Robust Visual Question Answering
Long Chen*, Xin Yan*, Jun Xiao, Hanwang Zhang, Shiliang Pu, Yueting Zhuang
CVPR 2020   • arXiv   • Codes   

Rethinking the Bottom-Up Framework for Query-based Video Localization
Long Chen*, Chujie Lu*, Siliang Tang, Jun Xiao, Dong Zhang, Chilie Tan, Xiaolin Li
AAAI 2020 (Oral Presentation)   • AAAI   

Counterfactual Critic Multi-Agent Training for Scene Graph Generation
Long Chen, Hanwang Zhang, Jun Xiao, Xiangnan He, Shiliang Pu, Shih-Fu Chang
ICCV 2019 (Oral Presentation)   • arXiv    • Open Acess

DEBUG: A Dense Bottom-Up Grounding Approach for Natural Language Video Localization
Chujie Lu*, Long Chen*, Chilie Tan, Xiaolin Li, Jun Xiao
EMNLP 2019 (Oral Presentation)   • ACL Anthology   

Zero-Shot Visual Recognition using Semantics-Preserving Adversarial Embedding Network
Long Chen, Hanwang Zhang, Jun Xiao, Wei Liu, Shih-Fu Chang
CVPR 2018   • arXiv    • Open Acess    • Codes   

SCA-CNN: Spatial and Channel-wise Attention in Convolutional Networks for Image Captioning
Long Chen, Hanwang Zhang, Jun Xiao, Liqiang Nie, Jian Shao, Wei Liu, Tat-Seng Chua
CVPR 2017   • arXiv    • Open Acess    • Codes   

Professional Services

Senior Program Committee (SPC) Member of IJCAI (2021)
Program Committee Member of CVPR (2019-2021)
Program Committee Member of ICCV (2019)
Program Committee Member of ECCV (2020)
Program Committee Member of ICLR (2021)
Program Committee Member of NeurIPS (2020)
Program Committee Member of ICML (2021)
Program Committee Member of ACL (2020)
Program Committee Member of ACM MM (2020)
Program Committee Member of AAAI (2020-2021)
Invited Reviewer for Transactions on Pattern Analysis and Machine Intelligence (TPAMI)

Last update: Jan. 1st, 2021.