Haocheng Xi

PhD student, EECS, University of California, Berkeley

Joined

November 2022

Names

Haocheng Xi (Preferred)

Emails

****@mails.tsinghua.edu.cn (Confirmed)

****@berkeley.edu (Confirmed)

Personal Links

Homepage

Google Scholar

DBLP

Career & Education History

PhD student

EECS, University of California, Berkeley (berkeley.edu)

2024 – Present

Undergrad student

Yao Class, Tsinghua University, Tsinghua University (tsinghua.edu.cn)

2020 – 2024

Advisors, Relations & Conflicts

PhD Advisor

Kurt Keutzer

2024 – Present

Coauthor

Jianfei Chen

2021 – 2024

Coauthor

Jun Zhu

2021 – 2024

Coauthor

Changhao Li

2021 – 2024

Expertise

model quantization

efficient neural networks

2021 – 2024

Publications

SciML Agents: Write the Solver, Not the Solution
Saarth Gaonkar, Xiang Zheng, Haocheng Xi, Rishabh Tiwari, Kurt Keutzer, Dmitriy Morozov, Michael W. Mahoney, Amir Gholami
- MATH-AI 2025 Poster
- Readers: Everyone
SLA: Beyond Sparsity in Diffusion Transformers via Fine-Tunable Sparse–Linear Attention
Jintao Zhang, Haoxu Wang, Kai Jiang, Shuo Yang, Kaiwen Zheng, Haocheng Xi, Ziteng Wang, Hongzhou Zhu, Min Zhao, Ion Stoica, Joseph E. Gonzalez, Jianfei Chen, Jun Zhu
- ICLR 2026 Poster
- Readers: Everyone
DC-VideoGen: Efficient Video Generation with Deep Compression Video Autoencoder
Junyu Chen, Wenkun He, Yuchao Gu, Yuyang Zhao, Jincheng YU, Junsong Chen, Dongyun Zou, Yujun Lin, Zhekai Zhang, Muyang Li, Haocheng Xi, Ligeng Zhu, Enze Xie, Song Han, Han Cai
- Submitted to ICLR 2026
- Readers: Everyone
DC-Gen: Post-Training Diffusion Acceleration with Deeply Compressed Latent Space
Wenkun He, Yuchao Gu, Junyu Chen, Dongyun Zou, Yujun Lin, Zhekai Zhang, Haocheng Xi, Muyang Li, Ligeng Zhu, Jincheng YU, Junsong Chen, Enze Xie, Song Han, Han Cai
- Submitted to ICLR 2026
- Readers: Everyone
Jet-Nemotron: Efficient Language Model with Post Neural Architecture Search
Yuxian Gu, Qinghao Hu, Haocheng Xi, Junyu Chen, Shang Yang, Song Han, Han Cai
- NeurIPS 2025 poster
- Readers: Everyone
Sparse VideoGen2: Accelerate Video Generation with Sparse Attention via Semantic-Aware Permutation
Shuo Yang, Haocheng Xi, Yilong Zhao, Muyang Li, Jintao Zhang, Han Cai, Yujun Lin, Xiuyu Li, Chenfeng Xu, Kelly Peng, Jianfei Chen, Song Han, Kurt Keutzer, Ion Stoica
- NeurIPS 2025 spotlight
- Readers: Everyone
Radial Attention: $\mathcal{O}(n\log n)$ Sparse Attention with Energy Decay for Long Video Generation
Xingyang Li, Muyang Li, Tianle Cai, Haocheng Xi, Shuo Yang, Yujun Lin, Lvmin Zhang, Songlin Yang, Jinbo Hu, Kelly Peng, Maneesh Agrawala, Ion Stoica, Kurt Keutzer, Song Han
- NeurIPS 2025 poster
- Readers: Everyone
SpargeAttn: Training-Free Sparse Attention Accelerating Any Model Inference
Jintao Zhang, Chendong Xiang, Haofeng Huang, Jia wei, Haocheng Xi, Jun Zhu, Jianfei Chen
- SLLM
- Readers: Everyone
Sparse VideoGen: Accelerating Video Diffusion Transformers with Spatial-Temporal Sparsity
Haocheng Xi, Shuo Yang, Yilong Zhao, Chenfeng Xu, Muyang Li, Xiuyu Li, Yujun Lin, Han Cai, Jintao Zhang, Dacheng Li, Jianfei Chen, Ion Stoica, Kurt Keutzer, Song Han
- CoRR 2025
- Readers: Everyone
QuantSpec: Self-Speculative Decoding with Hierarchical Quantized KV Cache
Rishabh Tiwari, Haocheng Xi, Aditya Tomar, Coleman Hooper, Sehoon Kim, Maxwell Horton, Mahyar Najibi, Michael W. Mahoney, Kurt Keutzer, Amir Gholami
- CoRR 2025
- Readers: Everyone

View all 27 publications

Co-Authors

View all 91 co-authors