Ph.D. Student @ HKUST
Hi, I'm Yaoyang Liu
Making video generation faster
Iām a second-year Ph.D. student at HKUST, advised by Prof. Long Chen. My research focuses on video generation and interactive world models, aiming to make them faster, better, and more controllable.
š° News
- 2026.10 šRAR is out on arXiv ā one interactive world model, any rollout rate.
- 2026.05 ā”SwiftI2V is out ā 2K image-to-video generation on a single RTX 4090.
- 2026.04 šBA-Att is accepted to CVPR 2026 Findings.
- 2026.01 šV2P-Bench is accepted to ICLR 2026.
- 2025.09 šStarted my Ph.D. at HKUST, advised by Prof. Long Chen.
- 2025.06 šMagic Mirror is accepted to ICCV 2025.
- 2024.09 āØChronoMagic-Bench is accepted to NeurIPS 2024 D&B Track as a Spotlight.
š Selected PublicationsAll publications
RAR: Rate-Adaptive Rollout for Time-Consistent Interactive World Models
One interactive world model, any rollout rate. Stride-RoPE places frames sampled at different rates on a shared physical-time axis, enabling consistent multi-rate rollout, unseen-rate generalization, and online rate switching without resetting history.
SwiftI2V: Efficient High-Resolution Image-to-Video Generation via Conditional Segment-wise Generation
We propose SwiftI2V, an efficient framework for high-resolution (2K) I2V generation that decouples motion modeling from detail synthesis via progressive segment-wise generation and bidirectional contextual interaction. SwiftI2V achieves performance comparable to end-to-end baselines while reducing total GPU-time by 202Ć, enabling practical 2K I2V on a single RTX 4090.
Magic Mirror: ID-Preserved Video Generation in Video Diffusion Transformers
MagicMirror is a video generation framework that preserves identity while producing high-quality, natural motion, achieving state-of-the-art results with minimal added parameters.
š EducationFull CV
- The Hong Kong University of Science and Technology (HKUST) 2025.09 ā PresentPh.D. in Computer Science and Engineering Hong Kong, China
Advised by Prof. Long Chen.
- University of Science and Technology of China (USTC) 2021.09 ā 2025.06B.Eng. in Artificial Intelligence Hefei, China


