Yi Liu (刘熠)
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Ph.D Student at CAS & SIAT_MMLAB .

Research Intern at Shanghai AI Laboratory .

Personal Email : yiliu61richard@gmail.com

School Email : yi.liu1@siat.ac.cn

About Me

Currently, I am a Ph.D. student at CAS & SIAT_MMLAB in Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences. And I also do the research intern at Shanghai AI Laboratory from 2022. Before that I received a B.Eng. degree in Huazhong University of Science and Technology, Wuhan, China, in 2019. I am advised by Prof. Yu Qiao.My research interests broadly lie in the areas of Video Understanding and Deep Learning, include temporal action detection, temporal sentence grounding, long-form video understanding.


  • 2019.03-2020.06: 短视频的精彩瞬间检测 (中科院 & 华为)
  • 2020.06-2022.03: 城市管网视频缺陷检测 (中科院 & 博铭维)
  • 2020.12-2021.09: 细粒度时序动作检测 (中科院 & 南京大学)
  • 2022.03-2022.12: 视频理解通用模型及下游应用 (中科院 & 上海 AI Lab)
  • 2023.03-2023.12: 大模型范式下长视频理解基准 (中科院 & 上海 AI Lab)


MoVQA: A Benchmark of Versatile Question-Answering for Long-Form Movie Understanding [ PDF ]
Hongjie Zhang*, Yi Liu*, Lu Dong*, Yifei Huang, et al. (under review)

F2S-Net: Learning Frame-To-Segment Prediction for Online Action Detection
Yi Liu*, Hongjie Zhang*, Yali Wang and Yu Qiao. IEEE Signal Processing Letters (SPL, under review)

Dual Masked Modeling for Weakly-Supervised Temporal Boundary Discovery [ PDF ]
Yuer Ma*, Yi Liu*, Wenxiong Kang, Limin Wang, Yu Qiao and Yali Wang. IEEE Transactions on Multimedia (T-MM 2023)

Learning Discriminative Feature Representation for Open Set Action Recognition [ PDF ]
Hongjie Zhang*, Yi Liu*, Limin Wang, Yali Wang and Yu Qiao. ACM Multimedia (ACM MM 2023)

FineAction: A Fine-Grained Video Dataset for Temporal Action Localization [ Project ] [ PDF ] [ Code ]
Yi Liu*, Limin Wang*, Yali Wang*, Xiao Ma, and Yu Qiao. IEEE Transactions on Image Processing (T-IP 2022)

VideoPipe 2022 Challenge: Real-World Video Understanding for Urban Pipe Inspection [ Project ] [ PDF ] [ Code ]
Yi Liu*, Xuan Zhang*, Ying Li, Guixin Liang, et al. International Conference on Pattern Recognition (ICPR 2022)

短视频场景在线起始检测任务及方法研究 [ PDF ]
李煜堃*, 刘熠*, 周林, 何艾莲, 王亚立, 彭小江, 乔宇. 集成技术 (集成技术 2021)

Academic Activities


  • Student organizer of ECCV 2022 DeeperAction Challenge, Track 1: Temporal Action Localization
  • Student organizer of ICPR 2022 VideoPipe Challenge, Track 2: Temporal Defect Localization
  • Student organizer of ICCV 2021 DeeperAction Challenge, Track 1: Temporal Action Localization
  • 1st Prize in ECCV 2022 Ego4D Episodic Memory Challenge, Moments Queries Track
  • 1st Prize in ECCV 2022 Ego4D Episodic Memory Challenge, Looking At Me Track
  • Journal Reviewer

  • Neural Networks, Journal of Visual Communication and Image Representation
  • Pattern Recognition, International Journal of Computer Vision
  • IEEE Transactions on Pattern Analysis and Machine Intelligence