Fengwei Yu's home page

Portrait of Fengwei Yu
Fengwei Yu (Forwil / Finch) forwil@foxmail.com / Github / Google Scholar · 6000+ citations Based in Shenzhen, China
English · 中文

Research

My current work centers on the systems and infrastructure behind large-scale video AI — from massive pretraining to real-time generation and serving. Areas of interest:

News

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.

Awards

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