My research focuses on large AI models and the infrastructure behind them, spanning large language models (LLMs), vision-language-action (VLA) models, and AIGC. I currently work on low-bit quantization, efficient attention and MoE, and the algorithm-systems co-design that makes training and serving large-scale models faster and cheaper. I also have a strong background in 3D computer vision, including 3D hand and hand-object reconstruction, image and video super-resolution, and multi-label learning.
09.04.2026: Released "HiFloat4 Format for Language Model Pre-training" on arXiv!
Feb 2026: Released "Unleashing Low-Bit Inference: A Comprehensive Evaluation of HiFloat Formats" on arXiv!
Feb 2026: Released "HiFloat4 Format for Language Model Inference" on arXiv!
01.06.2025: Released "TIGeR: Template-Free Hand-Object Interaction" on arXiv!
31.08.2024: One paper accepted at ECCV 2024!
27.02.2024: One paper accepted at CVPR 2024!
02.10.2023: Joined Huawei Singapore Research Center as a Research Engineer.
28.09.2023: Submitted my Ph.D. thesis.
02.05.2023: Received the CVPR DEI Travel Award.
28.02.2023: One paper accepted at CVPR 2023!
01.10.2022: One paper accepted at BMVC 2022 (Spotlight)!
06.04.2022: Started an internship at Huawei Research Center, Singapore!
16.10.2021: One paper accepted at BMVC 2021!
03.08.2019: Started my Ph.D. at NUS SoC, advised by Prof. Angela Yao.
23.07.2018: Received the Outstanding Master's Thesis Award!
01.05.2018: Started as a Research Assistant at NTU SCSE, advised by Prof. Jianfei Cai.
01.03.2018: Started an internship at Lenovo Research Lab.
31.01.2018: Obtained my Master's degree at Tianjin University.
Enhancing Video Super-Resolution via Implicit Resampling-based Alignment
Kai Xu, Ziwei Yu, Xin Wang, Michael Bi Mi, Angela Yao
In IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2024.
[paper]
HiFloat4 Format for Language Model Pre-training on Ascend NPUs
M. Taghian, Y. Peng, Y. Luo, ..., Ziwei Yu, et al.
arXiv preprint arXiv:2604.08826, 2026.
[paper]
Unleashing Low-Bit Inference on Ascend NPUs: A Comprehensive Evaluation of HiFloat Formats
P. Zhao, X. Li, Y. Luo, ..., Ziwei Yu, et al.
arXiv preprint arXiv:2602.12635, 2026.
[paper]
HiFloat4 Format for Language Model Inference
Y. Luo, J. Huang, Y. Cheng, Ziwei Yu, et al.
arXiv preprint arXiv:2602.11287, 2026.
[paper]
TIGeR: Text-Instructed Generation and Refinement for Template-Free Hand-Object Interaction
Y. Huang, Z. Zheng, Ziwei Yu, Y. Wang, T. H. E. Tse, A. Yao
arXiv preprint arXiv:2506.00953, 2025.
[paper]
NL2Contact: Natural Language Guided 3D Hand-Object Contact Modeling with Diffusion Model
Z. Zhang, H. Wang, Ziwei Yu, Y. Cheng, A. Yao, H. J. Chang
European Conference on Computer Vision (ECCV), 2024.
[paper]
UV-Based 3D Hand-Object Reconstruction with Grasp Optimization
Ziwei Yu, Linlin Yang, You Xie, Ping Chen, Angela Yao
The British Machine Vision Conference (BMVC), 2022 (Spotlight)
[paper]
Local and Global Point Cloud Reconstruction for 3D Hand Pose Estimation
Ziwei Yu, Linlin Yang, Shicheng Chen, Angela Yao
The British Machine Vision Conference (BMVC), 2021
[paper]
Independence Regularized Multi-Label Ensemble
Ziwei Yu, Changqing Zhang, Qinghua hu, Pengfei Zhu
IEEE International Conference on Multimedia and Expo (ICME), 2017
[paper]
More papers please see my Google Scholar
Reviewer: T-PAMI, CVPR, ECCV, BMVC, WACV, IEEE trans on Cybernetics, ICME, ICIP.
2023.10-Now: Researcher at Huawei Singapore Research Center.
2022.04-2023.09: Research Intern at Huawei Singapore Research Center.
2018.05-2019.07: Research Assistant at Nanyang Technological University, Singapore.
2018.03-2018.05: Intern at Lenovo Research Lab, China.
2014.07: Volunteer at International Marathon in Qinhuangdao, China.
2021 Jan: CS5242 Neural Networks and Deep Learning, NUS
2020 Fall: CS4243 Computer Vision and Pattern Recognition, NUS
2020 Jan: CS5242 Neural Networks and Deep Learning, NUS
2019 Fall: CS4243 Computer Vision and Pattern Recognition, NUS
2019: NUS Research Scholarship
2018: Outstanding Master's Thesis Award
2015: The Provincial Merit Student
2015: Outstanding Graduates of Northeastern University at Qinhuangdao
2014: The National Scholarship
2013: The National Scholarship
2012: Provincial Second Prize, Chinese Mathematics Competitions (CMC)