collaborators

15 papers

cs.AI2026

Scaling GUI Agents with Visual State Transitions

Xiangyan Liu, Kaixin Li, Haonan Wang +6

We introduce State Transition Pretraining (STP) as a new scaling axis for GUI agents. During the STP stage, we continually pretrain a unified multimodal model on visual state trans…

cs.LG2026

Multimodal Unlearning Across Vision, Language, Video, and Audio: Survey of Methods, Datasets, and Benchmarks

Nobin Sarwar, Shubhashis Roy Dipta, Zheyuan Liu +1

With the growing adoption of VLMs, DMs, LLMs, and AFMs, these multimodal foundation models can inadvertently encode sensitive, copyrighted, biased, or unsafe cross-modal associatio…

cs.CV2026

SAVAA: Mitigating Hallucinations in LVLMs via Step-wise Adaptive Visual Attention Amplification

Jiacheng Zhang, Feng Liu, Chao Du +1

A line of recent training-free methods for mitigating hallucinations in large vision-language models (LVLMs) operates by amplifying attention to visual tokens during autoregressive…

cs.LG2026

Demystifying the Slash Pattern in Attention: The Role of RoPE

Yuan Cheng, Fengzhuo Zhang, Yunlong Hou +5

Large Language Models (LLMs) often exhibit slash attention patterns, where attention scores concentrate along the -th sub-diagonal for some offset . These patterns play a key…

cs.CL2025

Think in Parallel, Answer as One: Logit Averaging for Open-Ended Reasoning

Haonan Wang, Chao Du, Kenji Kawaguchi +1

Majority voting has proven effective for close-ended question answering by aggregating parallel reasoning traces. However, it is not directly applicable to open-ended reasoning, su…

cs.LG2025

Diffusion Language Models are Super Data Learners

Jinjie Ni, Qian Liu, Longxu Dou +5

Under strictly controlled pre-training settings, we observe a Crossover: when unique data is limited, diffusion language models (DLMs) consistently surpass autoregressive (AR) mode…

cs.LG2025

Training Optimal Large Diffusion Language Models

Jinjie Ni, Qian Liu, Chao Du +5

We introduce Quokka, the first systematic scaling law for diffusion language models (DLMs), encompassing both compute-constrained and data-constrained regimes, and studying the key…

cs.AI2025

VerlTool: Towards Holistic Agentic Reinforcement Learning with Tool Use

Dongfu Jiang, Yi Lu, Zhuofeng Li +9

Reinforcement Learning with Verifiable Rewards (RLVR) has demonstrated success in enhancing LLM reasoning capabilities, but remains limited to single-turn interactions without tool…

cs.LG2025

Muon Outperforms Adam in Tail-End Associative Memory Learning

Shuche Wang, Fengzhuo Zhang, Jiaxiang Li +6

The Muon optimizer is consistently faster than Adam in training Large Language Models (LLMs), yet the mechanism underlying its success remains unclear. This paper demystifies this…

cs.CV2025

Fostering Video Reasoning via Next-Event Prediction

Haonan Wang, Hongfu Liu, Xiangyan Liu +4

Next-token prediction serves as the foundational learning task enabling reasoning in LLMs. But what should the learning task be when aiming to equip MLLMs with temporal reasoning c…

cs.CV2025

Adversarial Attacks against Closed-Source MLLMs via Feature Optimal Alignment

Xiaojun Jia, Sensen Gao, Simeng Qin +7

Multimodal large language models (MLLMs) remain vulnerable to transferable adversarial examples. While existing methods typically achieve targeted attacks by aligning global featur…

cs.LG2025

Reinforcing General Reasoning without Verifiers

Xiangxin Zhou, Zichen Liu, Anya Sims +6

The recent paradigm shift towards training large language models (LLMs) using DeepSeek-R1-Zero-style reinforcement learning (RL) on verifiable rewards has led to impressive advance…

cs.CR2025

Lifelong Safety Alignment for Language Models

Haoyu Wang, Zeyu Qin, Yifei Zhao +4

LLMs have made impressive progress, but their growing capabilities also expose them to highly flexible jailbreaking attacks designed to bypass safety alignment. While many existing…

cs.AI2025

FlowReasoner: Reinforcing Query-Level Meta-Agents

Hongcheng Gao, Yue Liu, Yufei He +6

This paper proposes a query-level meta-agent named FlowReasoner to automate the design of query-level multi-agent systems, i.e., one system per user query. Our core idea is to ince…

cs.CV2025

NoisyRollout: Reinforcing Visual Reasoning with Data Augmentation

Xiangyan Liu, Jinjie Ni, Zijian Wu +5

Recent advances in reinforcement learning (RL) have strengthened the reasoning capabilities of vision-language models (VLMs). However, enhancing policy exploration to better scale…