Liwei Wang

I am an Assistant Professor in Computer Science and Engineering department at The Chinese University of Hong Kong (CUHK). Before coming to HK, I have worked for more than two years as a Senior Researcher in NLP group of Tencent AI Lab at Bellevue, US.

I graduated with a PhD from Computer Vision group at University of Illinois at Urbana-Champaign, advised by Prof. Svetlana Lazebnik. Here is my Short Bio.

The multimodal Language and Vision (``LaVi'') team I lead in CSE@CUHK do research in NLP, Computer Vision, and also the intersection of two areas.

Multiple positions are available now in my team: Research Assistants, Phd students, and Postdocs. Please drop me an email if you want to work with me.

Email / LinkedIn / Google Scholar /

  • 2020/12:
    I joined the CSE@CUHK as an assistant professor and started my team working on Language and Vision ("LaVi" Team).
  • 2020/11:
    Our "Arrival" team is ranked the 1st among almost 400 teams in 2020 BAAI-JD Multimodal Dialogue Challenge!
  • 2020/07:
    Two ECCV 2020 papers on vision+language are accepted! Congrats to my interns at Bellevue!
  • 2020/06:
    I am co-organizing the second Learning from Imperfect Data workshop in CVPR 2020.
  • 2020/04:
    To generate coherent video paragraphs? Take a look at our ACL 2020 long paper-MART.
Research Highlights

The goal of my research is to build multi-modal interactive AI systems that can not only understand and recreate the visual world but also communicate like human beings using natural language
, which covers topics of joint modeling of images and natural language; natural language generation and multimodal dialogue system; embodied AI; machine learning methods for Computer Vision / NLP.

Works done by my students or interns are indicated by '*'. Click full list

Robust Dialogue Utterance Rewriting as Sequence Tagging

Jie Hao, Linfeng Song, Liwei Wang, Kun Xu, Zhaopeng Tu, Dong Yu
arXiv:2012.14535, 2020

Improving Weakly Supervised Visual Grounding by Contrastive Knowledge Distillation

Liwei Wang, Jing Huang, Yin Li, Kun Xu, Zhengyuan Yang, Dong Yu
arXiv:2007.01951, 2020

Comprehensive Image Captioning via Scene Graph Decomposition

Yiwu Zhong*, Liwei Wang, Jianshu Chen, Dong Yu, Yin Li
ECCV, 2020     Code

Improving One-stage Visual Grounding by Recursive Sub-query Construction

Zhengyuan Yang, Tianlang Chen, Liwei Wang, Jiebo Luo
ECCV, 2020     Code

MART: Memory-Augmented Recurrent Transformer for Coherent Video Paragraph Captioning

Jie Lei*, Liwei Wang, Yelong Shen, Dong Yu, Tamara Berg, Mohit Bansal
ACL, 2020     Code

A Fast and Accurate One-Stage Approach to Visual Grounding​

Zhengyuan Yang*, Boqing Gong, Liwei Wang, Wenbing Huang, Dong Yu, Jiebo Luo
ICCV, 2019, Oral Presentation     Code

Fast, Diverse and Accurate Image Captioning Guided By Part-of-Speech

Aditya Deshpande, Jyoti Aneja, Liwei Wang, Alexander Schwing, D. A. Forsyth
CVPR, 2019, Oral Presentation

Learning Two-Branch Neural Networks for Image-Text Matching Tasks

Liwei Wang, Yin Li, Jing Huang, Svetlana Lazebnik
TPAMI, 2018     Code

Learning structural motif representations for efficient protein structure search

Yang Liu, Qing Ye, Liwei Wang, Jian Peng
Bioinformatics, 2018     Code

Diverse and Accurate Image Description Using a Variational Auto-Encoder with an Additive Gaussian Encoding Space

Liwei Wang, Alex Schwing, Svetlana Lazebnik
NeurIPS, 2017

Flickr30k Entities: Collecting Region-to-Phrase Correspondences for Richer Image-to-Sentence Models

Bryan Plummer, Liwei Wang, Chris M. Cervantes, Juan C. Caicedo, Julia Hockenmaier, Svetlana Lazebnik
IJCV, 2016     Project

Learning Deep Structure-Preserving Image-Text Embeddings

Liwei Wang, Yin Li, Svetlana Lazebnik
CVPR, 2016     Code

Improving Image-Sentence Embeddings Using Large Weakly Annotated Photo Collections

Yunchao Gong, Liwei Wang, Micah Hodosh, Julia Hockenmaier2 Svetlana Lazebnik
ECCV, 2014     Code

Multi-Scale Orderless Pooling of Deep Convolutional Activation Features

Yunchao Gong, Liwei Wang, Ruiqi Guo, Svetlana Lazebnik
ECCV, 2014     Code

Learning Sparse Covariance Patterns for Natural Scenes

Liwei Wang, Yin Li, Jiaya Jia, Jian Sun, David Wipf, James M. Rehg
CVPR, 2012

Bayesian Face Revisited: A Joint Formulation

Dong Chen, Xudong Cao, Liwei Wang, Fang Wen, Jian Sun
ECCV, 2012

Former Interns and Mentored Students

I'm extremely thankful for working with these excellent interns and mentored students in Seattle and Champaign: Zhengyuan Yang (intern, phd@University of Rochester), Jie Lei (intern, phd@UNC Chapel Hill), Jeff Zhang (intern, phd@UIUC), Wanyu Du (intern, phd@University of Virginia), Darryl Hanan(intern, phd@UNC Chapel Hill), Yiwu Zhong (intern, phd@University of Wisconsin-Madison), Yifan (intern, phd@UCSD), Jing Huang (mentee, master@UIUC, now at Google Research).

(Templates adapted from Arun's webpage.)