activity
20242026
collaborators

5 papers

cs.LG2026

Planning Under Observation Mismatch for Traffic Signal Control via Adaptive Modular World Models

Zherui Huang, Yicheng Liu, Chumeng Liang +1

Deploying learned decision-making systems often requires transferring to new sites where the sensing pipeline differs. In such cases, observations can change in semantics and dimen…

cs.CL2026

LangFlow: Continuous Diffusion Rivals Discrete in Language Modeling

Yuxin Chen, Chumeng Liang, Hangke Sui +4

Continuous diffusion has been the foundation of high-fidelity, controllable, and few-step generation of many data modalities such as images. However, in language modeling, prior co…

cs.CV2025

Targeted Attack Improves Protection against Unauthorized Diffusion Customization

Boyang Zheng, Chumeng Liang, Xiaoyu Wu

Diffusion models build a new milestone for image generation yet raising public concerns, for they can be fine-tuned on unauthorized images for customization. Protection based on ad…

cs.LG2025

Online Reward-Weighted Fine-Tuning of Flow Matching with Wasserstein Regularization

Jiajun Fan, Shuaike Shen, Chaoran Cheng +3

Recent advancements in reinforcement learning (RL) have achieved great success in fine-tuning diffusion-based generative models. However, fine-tuning continuous flow-based generati…

cs.LG2024

Real-World Benchmarks Make Membership Inference Attacks Fail on Diffusion Models

Chumeng Liang, Jiaxuan You

Membership inference attacks (MIAs) on diffusion models have emerged as potential evidence of unauthorized data usage in training pre-trained diffusion models. These attacks aim to…