Ethan Chern

I am a PhD student at the Generative AI Research Lab (GAIR), Shanghai Jiao Tong University, advised by Prof. Pengfei Liu. My current research interests are in video foundation models, real-time video generation, and world modeling.

Previously, I worked on LLM alignment, factuality, evaluation, and multimodal learning. I hold a Master's degree in Artificial Intelligence from the Language Technologies Institute, School of Computer Science at Carnegie Mellon University. During my Master's years at CMU, I was fortunate to work with Prof. Graham Neubig and Dr. Pengfei Liu on the factuality of LLMs and summarization models.

I also had the opportunity to collaborate with Prof. Yu Tsao on multi-modal speech enhancement and voice conversion. During my undergraduate years, I worked with Prof. Ching-Yi Lai on quantum error correction and information theory.

Email / CV / Google Scholar / Twitter / Github / LinkedIn

Selected Publications

I'm currently interested in video foundation models, real-time video generation, and world modeling. Previously, my research focused on multimodal learning, LLM reasoning, and LLM alignment.

Video Generation & Multimodal Learning

	LiveTalk: Real-Time Multimodal Interactive Video Diffusion via Improved On-Policy Distillation Ethan Chern, Zhulin Hu, Bohao Tang, Jiadi Su, Steffi Chern, Zhijie Deng, Pengfei Liu arxiv / github
	Thinking with Generated Images Ethan Chern, Zhulin Hu, Steffi Chern*, Siqi Kou, Jiadi Su, Yan Ma, Zhijie Deng, Pengfei Liu arxiv / github

LLM Reasoning

	LIMO: Less is More for Reasoning Yixin Ye, Zhen Huang, Yang Xiao, Ethan Chern, Shijie Xia, Pengfei Liu arxiv / github
	O1 Replication Journey--Part 2: Surpassing O1-preview through Simple Distillation, Big Progress or Bitter Lesson? Zhen Huang, Haoyang Zou, Xuefeng Li, Yixiu Liu, Yuxiang Zheng, Ethan Chern*, Shijie Xia, Yiwei Qin, Weizhe Yuan, Pengfei Liu arxiv / github

LLM Alignment

	Alignment for Honesty Yuqing Yang, Ethan Chern, Xipeng Qiu, Graham Neubig, Pengfei Liu arxiv / github
	FacTool: Factuality Detection in Generative AI - A Tool Augmented Framework for Multi-Task and Multi-Domain Scenarios I-Chun Chern, Steffi Chern, Shiqi Chen, Weizhe Yuan, Kehua Feng, Chunting Zhou, Junxian He, Graham Neubig, Pengfei Liu arxiv / github

Website template from Jon Barron.