04 / Publications

Selected Publications

Google Scholar snapshot on 2026-06-06: 17 publications, 562 citations, h-index 9.

2026
arXiv 2026
SelfLift overview

SelfLift: Accelerating Few-Step Diffusion via Self-Recovering Resolution Transition

Tingyan Wen, Chenqian Yan, Xurui Peng, Xiazhang Fang, Shuai Wang, Xueqian Wang, Songwei Liu

Status: arXiv 2026 · Topic: few-step diffusion acceleration

Introduces self-recovering progressive-resolution transitions for few-step diffusion, enabling late low-to-high-resolution lifting while preserving generation quality.

arXiv 2026
ReTrace overview

ReTrace: Rejected-Trajectory Conditioning for Speculative Decoding

Luxi Lin, Zhanpeng Zeng, Shuang Peng, Songwei Liu, Rongrong Ji

Status: arXiv 2026 · Topic: speculative decoding

Reuses rejected draft trajectories as cross-round conditioning, improving acceptance length and decoding speed without changing lossless target-side verification.

arXiv 2026
Core-Expansion Routing overview

Accelerating Unified Multimodal Models with Core-Expansion Routing and Unified Computation Scheduling

Wengyi Zhan, Chenqian Yan, Songwei Liu, Mingbao Lin, Rongrong Ji

Status: arXiv 2026 · Topic: unified multimodal model acceleration

Combines task-shared core routing with progress-conditioned expansion and unified scheduling across tokens, layers, FFNs, caches, and denoising steps.

arXiv 2026
HyperDFlash overview

HyperDFlash: Hyper-Connection-Aligned Block Speculative Decoding with Gated Residual Reduction

Luxi Lin, Shuang Peng, Rui Ma, Junhao Hua, Shuwei Fan, Zhengda Qin, Qiang Wang, Hongjian Sun, Fangmin Chen, Songwei Liu

Status: arXiv 2026 · Topic: architecture-aligned speculative decoding

Aligns block-parallel drafting with multi-hyper-connection residual streams through pre-collapse conditioning, lightweight gated reduction, and targeted distillation.

ECCV 2026
DreamLite overview

DreamLite: A Lightweight On-Device Unified Model for Image Generation and Editing

Kailai Feng, Yuxiang Wei, Bo Chen, Yang Pan, Hu Ye, Songwei Liu, Chenqian Yan, Yuan Gao

Code

Status: ECCV 2026 · Topic: on-device image generation and editing

Presents a SOTA on-device unified model for image generation and editing, targeting practical mobile deployment with strong quality-efficiency trade-offs.

ICML 2026 Spotlight+Oral
TCEC overview

TCEC: Error Propagation Mechanisms and Compensation Strategies for Quantized Diffusion

Songwei Liu, Chao Zeng, Chenqian Yan, Xurui Peng, Xing Wang, Fangmin Chen, Xing Mei

Status: ICML 2026 Spotlight + Oral, Top 0.7% · Topic: diffusion quantization

Studies how quantization errors propagate across diffusion timesteps and proposes timestep-aware compensation strategies for efficient low-bit generation.

ICML 2026
MotionCache overview

Motion-Aware Caching for Efficient Autoregressive Video Generation

Jing Xu, Yuexiao Ma, Xuzhe Zheng, Xing Wang, Shiwei Liu, Chenqian Yan, Xiawu Zheng, Rongrong Ji, Fei Chao, Songwei Liu

Status: ICML 2026 · Topic: video generation cache reuse

Uses motion-aware token update scheduling to reduce redundant computation in autoregressive video generation while preserving temporal quality.

ACL 2026 Oral
S2O overview

S2O: Early Stopping for Sparse Attention via Online Permutation

Yu Zhang*, Songwei Liu*, Chenqian Yan, Sheng Lin, Beichen Ning, Fangmin Chen, Xing Wang

Status: ACL 2026 Oral · Role: co-first author; Project Lead (LD) · * equal contribution

Introduces online permutation and early-stopping mechanisms for sparse attention, reducing attention computation while keeping model quality stable.

ICLR 2026
ERTACache overview

ERTACache: Error Rectification and Timesteps Adjustment for Efficient Diffusion

Xurui Peng, Chenqian Yan, Hong Liu, Rui Ma, Fangmin Chen, Xing Wang, Zhihua Wu, Songwei Liu†, Mingbao Lin

Status: ICLR 2026 · Role: co-corresponding author · † co-corresponding author

Combines timestep adjustment with online error rectification to make diffusion cache reuse more robust under aggressive acceleration settings.

2025
arXiv 2025
Seedance overview

Seedance 1.5 Pro: A Native Audio-Visual Joint Generation Foundation Model

Team Seedance, Heyi Chen, Siyan Chen, et al., Songwei Liu, et al.

Status: arXiv 2025 · Topic: audio-visual generation foundation model

Reports a native audio-visual joint generation foundation model and the production-oriented optimization stack behind efficient deployment.