About me
In 2025 I co-founded an AI company building infrastructure for
large-scale video AI; Series A at a $1.32B valuation.
Prior to that, I was Senior R&D Director at
Momenta (HKEX: 6880), a leader in autonomous driving,
where I led the training and inference infrastructure team — building
the systems that took perception and planning models from research
prototypes to on-vehicle deployment across a broad range of automotive
chips.
Before Momenta, I was Vice Research Director at
SenseTime (HKEX: 0020), advised by
Prof. Xiaogang Wang
and
Dr. Junjie Yan. I led the Model-ToolChain team behind SenseTime's internal AI
platform — the shared training, compression, and deployment stack
that powered the majority of the company's smart-city and
smart-vehicle products, scaling model production by roughly 2× each
year.
Some of our work is open-sourced under the
ModelTC
organization on GitHub, and I write about it on Zhihu at
踢翻炼丹炉.
I first joined SenseTime as a full-time intern for two years in the
Video Intelligence Group under
Dr. Junjie Yan, working on high-performance video analysis systems (face, vehicle,
pedestrian) and porting algorithms to embedded platforms; during that
stretch we took 1st place at the ECCV MOT16 Multi-Object Tracking
Challenge.
During college, I led the BUAA HPC team to first prize at the ASC
Student Supercomputer Challenge 2015, and spent half a year interning
on the Microsoft IoT team in Beijing, working on IoT communication
protocols.
I earned my B.S. in 2015 and my M.S. in 2018, both from Beihang
University CS. My M.S. was advised by Prof. Xiaohua Shi and spanned
three separate directions: JVM memory profiling; CompCert (a formally
verified compiler); and applying large-scale deep-learning language
models to text error detection and correction.
I picked up competitive informatics in high school; back-to-back 1st
Prizes at the National Olympiad in Informatics in Provinces (NOIp,
ranked #55 nationally) recruited me into the Beihang University CS
program.
Publications
2024
Towards Frame Rate Agnostic Multi-Object Tracking
[PDF]
International Journal of Computer Vision (IJCV), 2024
Weitao Feng, Lei Bai, Yongqiang Yao, Fengwei Yu,
Wanli Ouyang
2023
UniHCP: A Unified Model for Human-Centric Perceptions
[PDF]
Conference on Computer Vision and Pattern Recognition (CVPR), 2023
Yuanzheng Ci, Yizhou Wang, Meilin Chen, Shixiang Tang, Lei Bai, Feng
Zhu, Rui Zhao, Fengwei Yu, Donglian Qi, Wanli
Ouyang
The Equalization Losses: Gradient-Driven Training for Long-tailed
Object Recognition
[PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence
(TPAMI), 2023
Jingru Tan, Bo Li, Xin Lu, Yongqiang Yao,
Fengwei Yu, Tong He, Wanli Ouyang
Exploiting Subgraph Similarities for Efficient Auto-tuning of Tensor
Programs
International Conference on Parallel Processing (ICPP), 2023
Mingzhen Li, Hailong Yang, Shanjun Zhang,
Fengwei Yu, Ruihao Gong, Yi Liu, Zhongzhi Luan,
Depei Qian
SysNoise: Exploring and Benchmarking Training-Deployment System
Inconsistency
Conference on Machine Learning and Systems (MLSys), 2023
Yan Wang, Yuhang Li, Ruihao Gong, Aishan Liu, Yanfei Wang, Jian Hu,
Yongqiang Yao, Yunchen Zhang, Tianzi Xiao,
Fengwei Yu, Xianglong Liu
Exploiting Input Tensor Dynamics in Activation Checkpointing for
Efficient Training on GPU
[PDF]
International Parallel & Distributed Processing Symposium (IPDPS), 2023
Jianjin Liao, Mingzhen Li, Hailong Yang, Qingxiao Sun, Biao Sun,
Jiwei Hao, Tianyu Feng, Fengwei Yu, Shengdong Chen,
Ye Tao, Zicheng Zhang, Zhongzhi Luan, Depei Qian
2022
Outlier Suppression: Pushing the Limit of Low-bit Transformer
Language Models
[PDF]
Conference on Neural Information Processing Systems (NeurIPS), 2022
Xiuying Wei, Yunchen Zhang, Xiangguo Zhang, Ruihao Gong, Shanghang
Zhang, Qi Zhang, Fengwei Yu, Xianglong Liu
Equalized Focal Loss for Dense Long-Tailed Object Detection
[PDF]
Conference on Computer Vision and Pattern Recognition (CVPR), 2022
Bo Li, Yongqiang Yao, Jingru Tan, Gang Zhang,
Fengwei Yu, Jianwei Lu, Ye Luo
NNLQP: A Multi-Platform Neural Network Latency Query and Prediction
System with an Evolving Database
International Conference on Parallel Processing (ICPP), 2022
Liang Liu, Mingzhu Shen, Ruihao Gong, Fengwei Yu,
Hailong Yang
QDrop: Randomly Dropping Quantization for Extremely Low-bit
Post-Training Quantization
[PDF]
International Conference on Learning Representations (ICLR), 2022
Xiuying Wei, Ruihao Gong, Yuhang Li, Xianglong Liu,
Fengwei Yu
Supervision Exists Everywhere: A Data Efficient Contrastive
Language-Image Pre-training Paradigm
[PDF]
International Conference on Learning Representations (ICLR), 2022
Yangguang Li, Feng Liang, Lichen Zhao, Yufeng Cui, Wanli Ouyang,
Jing Shao, Fengwei Yu, Junjie Yan
2021
Once Quantization-Aware Training: High Performance Extremely Low-Bit
Architecture Search
[PDF]
International Conference on Computer Vision (ICCV), 2021
Mingzhu Shen, Feng Liang, Ruihao Gong, Yuhang Li, Chuming Li, Chen
Lin, Fengwei Yu, Junjie Yan, Wanli Ouyang
Differentiable Dynamic Wirings for Neural Networks
[PDF]
International Conference on Computer Vision (ICCV), 2021
Kun Yuan, Quanquan Li, Shaopeng Guo, Dapeng Chen, Aojun Zhou,
Fengwei Yu, Ziwei Liu
MixMix: All You Need for Data-Free Compression Are Feature and Data
Mixing
[PDF]
International Conference on Computer Vision (ICCV), 2021
Yuhang Li, Feng Zhu, Ruihao Gong, Mingzhu Shen, Xin Dong,
Fengwei Yu, Shaoqing Lu, Shi Gu
Incorporating Convolution Designs into Visual Transformers
[PDF]
International Conference on Computer Vision (ICCV), 2021
Kun Yuan, Shaopeng Guo, Ziwei Liu, Aojun Zhou,
Fengwei Yu, Wei Wu
MQBench: Towards Reproducible and Deployable Model Quantization
Benchmark
[PDF]
Conference on Neural Information Processing Systems (NeurIPS), 2021
Yuhang Li, Mingzhu Shen, Jian Ma, Yan Ren, Mingxin Zhao, Qi Zhang,
Ruihao Gong, Fengwei Yu, Junjie Yan
Diversifying Sample Generation for Accurate Data-Free Quantization
[PDF]
Conference on Computer Vision and Pattern Recognition (CVPR), 2021
Xiangguo Zhang, Haotong Qin, Yifu Ding, Ruihao Gong, Qinghua Yan,
Renshuai Tao, Yuhang Li, Fengwei Yu, Xianglong
Liu
BRECQ: Pushing the Limit of Post-Training Quantization by Block
Reconstruction
[PDF]
International Conference on Learning Representations (ICLR), 2021
Yuhang Li, Ruihao Gong, Xu Tan, Yang Yang, Peng Hu, Qi Zhang,
Fengwei Yu, Wei Wang, Shi Gu
2020
Extremely Low-bit Convolution Optimization for Quantized Neural
Network on Modern Computer Architectures
[PDF]
International Conference on Parallel Processing (ICPP), 2020
Qingchang Han, Yongmin Hu, Fengwei Yu, Hailong
Yang, Bing Liu, Peng Hu, Ruihao Gong, Yanfei Wang, Rui Wang, Zhongzhi
Luan, Depei Qian
DMS: Differentiable Dimension Search for Binary Neural Networks
[PDF]
International Conference on Learning Representations (ICLR) NAS Workshop, 2020
Yuhang Li, Ruihao Gong, Fengwei Yu, Xin Dong,
Xianglong Liu
Towards Unified INT8 Training for Convolutional Neural Networks
[PDF]
Conference on Computer Vision and Pattern Recognition (CVPR), 2020
Feng Zhu, Ruihao Gong, Fengwei Yu, Xianglong Liu,
Yanfei Wang, Zhelong Li, Xiuqi Yang, Junjie Yan
Forward and Backward Information Retention for Accurate Binary
Neural Networks
[PDF]
Conference on Computer Vision and Pattern Recognition (CVPR), 2020
Haotong Qin, Ruihao Gong, Xianglong Liu, Mingzhu Shen, Ziran Wei,
Fengwei Yu, Jingkuan Song
2019
Differentiable Soft Quantization: Bridging Full-Precision and
Low-Bit Neural Networks
[PDF]
International Conference on Computer Vision (ICCV), 2019
Ruihao Gong, Xianglong Liu, Shenghu Jiang, Tianxiang Li, Peng Hu,
Jiazhen Lin, Fengwei Yu, Junjie Yan
2016
POI: Multiple Object Tracking with High Performance Detection and
Appearance Feature
[PDF]
European Conference on Computer Vision (ECCV) Workshop, 2016
Fengwei Yu, Wenbo Li, Quanquan Li, Yu Liu, Xiaohua
Shi, Junjie Yan