Previously, I received an Honours degree in CS from UBC under the supervision of
Prof. Andrew Roth. During my
undergraduate studies, I am fortunate to intern at both the BCCRC Roth Lab and Vector
Institute.
[2024/04] π One paper gets accepted to CRV 2024 Workshop
and it is selected as Oral Presentation.
Research
My research focuses on developing efficient and scalable distillation methods for generative models, particularly diffusion and flow-based models. I am interested in extending these techniques beyond image generation to video generation, language modeling, world modeling, and vision-language-action (VLA) models for embodied intelligence and robotics. Some papers
are highlighted.
We propose Consistent Distribution Matching (CDMD), a data-free and simulation-free distillation method that unifies sample generation and score estimation in one student network, using only a frozen teacher and a trainable student with a single objective. CDMD attains a 1-NFE FID of 2.04 and a 4-NFE FID of 1.37 on ImageNet 256Γ256.
We present a novel Motion prediction conditional Flow matching model, termed MoFlow, to generate K-shot future trajectories for all agents in a given scene. In addition, by leveraging the Implicit Maximum Likelihood Estimation (IMLE), we propose a novel distillation method for flow models that only requires samples from the teacher model.
Stochastic Trajectory Generation with Diffusion via IMLE Distillation Yuxiang Fu, Qi Yan, Ke Li, Lele Wang, Renjie Liao CRV 2024 Workshop, Oral Presentation Slides
/
Poster
We introduce TGD, a diffusion-based human trajectory generation model, along with a trainable student model leveraging the IMLE scheme to align with the teacher diffusion modelβs distribution at any intermediate diffusion timestamp.
Accurate single-cell segmentation is essential for spatial omics analysis, yet existing methods rely heavily on expert-driven annotations and separate statistical or biological evaluation strategies, highlighting the need for a unified assessment approach. ESQmodel alleviates this limitation.
We aim to elucidate the fundamental nature of rotational impedance and presents a comprehensive, unified framework for formulating rotational impedance using Lie algebra and Noether's theorem. In particular, we utilized quaternions and rotation matrices to represent rotational motion within our proposed framework to ensure theoretical validity.
Thesis
PCVAE: a Controlled deep VAE for Pancancer
gene expressions clustering analysis Yuxiang Fu Content
A slight tweak of the variational autoencoder that controls the primary tissue effect of the bulk RNA sequencing data from PCAWG/ICGC dataset. PCVAE offers the ability to uncover novel connections across heterogeneous cancers in a site-effect-free environment.