activity
20232026
most citedDR-Encoder: Encode Low-rank Gradients with Random Prior for Large Language Models Differentially Privately

4 citations · 11 across the 19 of their papers we have counts for

collaborators

19 papers

cs.AI2026

Beyond Outcome Gaps: Process-Aware Fairness Diagnosis for LLM-based Multi-Agent Decision Systems

Yiran Zhao, Lu Zhou, Liming Fang +4

LLM-based multi-agent systems (MAS) are increasingly considered for high-stakes decision-making, yet outcome-based fairness audits can miss where risks arise within the decision tr…

cs.AI2026

LEAP: Likelihood Elicitation and Aggregation for LLM-based Probabilistic Forecasting

Yufei Chen, Yiran Zhao, Xiaogang Xu +3

LLM-based forecasting systems have improved on real-world tasks such as financial markets and sports outcomes, largely through stronger search and tool use. Many systems still ask…

cs.AI2026

LLM-based Agents for Forecasting and Prediction: Methods, Training, Evaluation, and Applications

Xiaogang Xu, Jiaqi Tang, Jianmin Chen +12

Large language models (LLMs) now support forecasting systems that combine language-based reasoning with temporal data, evidence retrieval, external tools, and iterative prediction.…

cs.LG2026

PertMind: Eliciting Emergent Biological Reasoning in LLM via Reinforcement Learning on Cellular Perturbation Data

Zhenchao Tang, Xiaogang Xu, Tianxu Lv +16

Large language models can describe mechanisms, yet scalable post-training still depends on costly, manually curated biological reasoning traces. Here we show that cellular perturba…

cs.AI2026

ARAC: Benchmarking Auto-Research's Alignment and Completeness on End-to-End Researchs

Jiale Cui, Yueyao Yuan, Kaixi Zhong +3

The rapid advancement of Auto-Research has surfaced a fundamental evaluation challenge: how can we measure the alignment, logical coherence, and evolutionary completeness of its re…

cs.CV2026

Remember-R1: Mitigating Long-Context Visual Forgetting through Reinforcement Learning

Jianmin Chen, Jiaqi Tang, Wei Wei +9

Multimodal large language models (MLLMs) increasingly rely on long chain-of-thought reasoning for complex tasks. However, as reasoning sequences lengthen, models may gradually rely…

cs.CV2026

Read It Back: Pretrained MLLMs Are Zero-Shot Reward Models for Text-to-Image Generation

Runhui Huang, Qihui Zhang, Zhe Liu +3

In this paper, we propose SpectraReward, a training-free reward function that turns pretrained MLLMs into off-the-shelf reward models for image-generation reinforcement learning. I…

cs.CV2026

AlphaGRPO: Unlocking Self-Reflective Multimodal Generation in UMMs via Decompositional Verifiable Reward

Runhui Huang, Jie Wu, Rui Yang +2

In this paper, we propose AlphaGRPO, a novel framework that applies Group Relative Policy Optimization (GRPO) to AR-Diffusion Unified Multimodal Models (UMMs) to enhance multimodal…

cs.CR2026

LITMUS: Benchmarking Behavioral Jailbreaks of LLM Agents in Real OS Environments

Chiyu Zhang, Huiqin Yang, Bendong Jiang +8

The rapid proliferation of LLM-based autonomous agents in real operating system environments introduces a new category of safety risk beyond content safety: behavior jailbreak, whe…

cs.AI2026

Fair in Mind, Fair in Action? A Synchronous Benchmark for Understanding and Generation in UMLLMs

Yiran Zhao, Lu Zhou, Xiaogang Xu +3

As artificial intelligence (AI) is increasingly deployed across domains, ensuring fairness has become a core challenge. However, the field faces a "Tower of Babel'' dilemma: fairne…

cs.CL2025

Jailbreaking Commercial Black-Box LLMs with Explicitly Harmful Prompts

Chiyu Zhang, Lu Zhou, Xiaogang Xu +3

Existing black-box jailbreak attacks achieve certain success on non-reasoning models but degrade significantly on recent SOTA reasoning models. To improve attack ability, inspired…

cs.LG2024★ 4 cited

DR-Encoder: Encode Low-rank Gradients with Random Prior for Large Language Models Differentially Privately

Huiwen Wu, Deyi Zhang, Xiaohan Li +3

The emergence of the Large Language Model (LLM) has shown their superiority in a wide range of disciplines, including language understanding and translation, relational logic reaso…

cs.AI2024

GADT: Enhancing Transferable Adversarial Attacks through Gradient-guided Adversarial Data Transformation

Yating Ma, Xiaogang Xu, Liming Fang +1

Current Transferable Adversarial Examples (TAE) are primarily generated by adding Adversarial Noise (AN). Recent studies emphasize the importance of optimizing Data Augmentation (D…

cs.CL2024★ 1 cited

Iter-AHMCL: Alleviate Hallucination for Large Language Model via Iterative Model-level Contrastive Learning

Huiwen Wu, Xiaohan Li, Xiaogang Xu +3

The development of Large Language Models (LLMs) has significantly advanced various AI applications in commercial and scientific research fields, such as scientific literature summa…

cs.CV2024

Adversarial Attacks of Vision Tasks in the Past 10 Years: A Survey

Chiyu Zhang, Lu Zhou, Xiaogang Xu +2

With the advent of Large Vision-Language Models (LVLMs), new attack vectors, such as cognitive bias, prompt injection, and jailbreaking, have emerged. Understanding these attacks p…

cs.CV2024★ 2 cited

Distinguish Any Fake Videos: Unleashing the Power of Large-scale Data and Motion Features

Lichuan Ji, Yingqi Lin, Zhenhua Huang +5

The development of AI-Generated Content (AIGC) has empowered the creation of remarkably realistic AI-generated videos, such as those involving Sora. However, the widespread adoptio…

cs.CV2024★ 2 cited

Boosting Image Restoration via Priors from Pre-trained Models

Xiaogang Xu, Shu Kong, Tao Hu +2

Pre-trained models with large-scale training data, such as CLIP and Stable Diffusion, have demonstrated remarkable performance in various high-level computer vision tasks such as i…

cs.CV2023

Restoration-Oriented Video Frame Interpolation with Region-Distinguishable Priors from SAM

Yan Han, Xiaogang Xu, Yingqi Lin +3

In existing restoration-oriented Video Frame Interpolation (VFI) approaches, the motion estimation between neighboring frames plays a crucial role. However, the estimation accuracy…

cs.CV2023★ 2 cited

Geometric-Aware Low-Light Image and Video Enhancement via Depth Guidance

Yingqi Lin, Xiaogang Xu, Jiafei Wu +2

Low-Light Enhancement (LLE) is aimed at improving the quality of photos/videos captured under low-light conditions. It is worth noting that most existing LLE methods do not take ad…