activity
20222026
most citedTimeMIL: Advancing Multivariate Time Series Classification via a Time-aware Multiple Instance Learning

3 citations · 11 across the 32 of their papers we have counts for

collaborators

37 papers

cs.CL2026

LadderEdit: Edit-Level Residual Compression for Memory-Efficient Lifelong Editing of LLMs

Xiaobing Yu, Peijie Qiu, Jin Yang +5

Lifelong editing of LLMs requires storing thousands of edits after acquisition. A widely used family of approaches attaches one LoRA adapter per edit, which preserves behavior but…

cs.LG2026

ActiveMedAgent: Cost-Aware Trajectory Learning for Multimodal Medical Diagnosis

Weiwei Ma, Xiaobing Yu, Peijie Qiu +5

Clinical diagnosis is inherently sequential: clinicians escalate from cheap to costly tests only when additional evidence is expected to resolve diagnostic uncertainty. We present…

cs.CL2026

TEFM: Token-Efficient Faithful Modeling for Structured Data

Zhichao Hou, Lingdao Sha, Xueyu Mao +3

In this paper, we solve two fundamental obstacles in applying LLMs to critical domains: token efficiency and faithfulness. To address both constraints jointly, we present TEFM (Tok…

cs.AI2026

S-SPPO: Semantic-Calibrated Self-Play Preference Optimization

Xiwen Chen, Wenhui Zhu, Jingjing Wang +13

Aligning Large Language Models (LLMs) with human preferences is often formulated via Direct Preference Optimization (DPO). However, the standard Bradley-Terry instantiation of DPO…

cs.CV2026

Mags-RL: Wearing Multimodal LLMs a Magnifying Glass via Agentic Reinforcement Learning For Complex Scene Reasoning

Xuanzhao Dong, Wenhui Zhu, Peijie Qiu +11

Despite their popularity and success, Multimodal Large Language Models (MLLMs) often struggle to interpret images accurately, which limits their reasoning capability in complex sce…

cs.CL2026

Your Agent is More Brittle Than You Think: Uncovering Indirect Injection Vulnerabilities in Agentic LLMs

Wenhui Zhu, Xuanzhao Dong, Xiwen Chen +7

The rapid deployment of open-source frameworks has significantly advanced the development of modern multi-agent systems. However, expanded action spaces, including uncontrolled pri…

cs.LG2026

SODA: Semi On-Policy Black-Box Distillation for Large Language Models

Xiwen Chen, Jingjing Wang, Wenhui Zhu +7

Black-box knowledge distillation for large language models presents a strict trade-off. Simple off-policy methods (e.g., sequence-level knowledge distillation) struggle to correct…

cs.CV2026

OTPrune: Distribution-Aligned Visual Token Pruning via Optimal Transport

Xiwen Chen, Wenhui Zhu, Gen Li +9

Multi-modal large language models (MLLMs) achieve strong visual-language reasoning but suffer from high inference cost due to redundant visual tokens. Recent work explores visual t…

cs.CV2026

ImageRAGTurbo: Towards One-step Text-to-Image Generation with Retrieval-Augmented Diffusion Models

Peijie Qiu, Hariharan Ramshankar, Arnau Ramisa +4

Diffusion models have emerged as the leading approach for text-to-image generation. However, their iterative sampling process, which gradually morphs random noise into coherent ima…

cs.CL2026

AriadneMem: Threading the Maze of Lifelong Memory for LLM Agents

Wenhui Zhu, Xiwen Chen, Zhipeng Wang +11

Long-horizon LLM agents require memory systems that remain accurate under fixed context budgets. However, existing systems struggle with two persistent challenges in long-term dial…

cs.SD2026

AHA: Aligning Large Audio-Language Models for Reasoning Hallucinations via Counterfactual Hard Negatives

Yanxi Chen, Wenhui Zhu, Xiwen Chen +9

Although Large Audio-Language Models (LALMs) deliver state-of-the-art (SOTA) performance, they frequently suffer from hallucinations, e.g. generating text not grounded in the audio…

cs.CV2025

LLaDA-MedV: Exploring Large Language Diffusion Models for Biomedical Image Understanding

Xuanzhao Dong, Wenhui Zhu, Xiwen Chen +5

Autoregressive models (ARMs) have long dominated the landscape of biomedical vision-language models (VLMs). Recently, masked diffusion models such as LLaDA have emerged as promisin…

eess.IV2025

Cracking Instance Jigsaw Puzzles: An Alternative to Multiple Instance Learning for Whole Slide Image Analysis

Xiwen Chen, Peijie Qiu, Wenhui Zhu +8

While multiple instance learning (MIL) has shown to be a promising approach for histopathological whole slide image (WSI) analysis, its reliance on permutation invariance significa…

cs.CL2025

Toward Effective Reinforcement Learning Fine-Tuning for Medical VQA in Vision-Language Models

Wenhui Zhu, Xuanzhao Dong, Xin Li +6

Recently, reinforcement learning (RL)-based tuning has shifted the trajectory of Multimodal Large Language Models (MLLMs), particularly following the introduction of Group Relative…

cs.CV2025

How Effective Can Dropout Be in Multiple Instance Learning ?

Wenhui Zhu, Peijie Qiu, Xiwen Chen +4

Multiple Instance Learning (MIL) is a popular weakly-supervised method for various applications, with a particular interest in histological whole slide image (WSI) classification.…

cs.LG2025

FIC-TSC: Learning Time Series Classification with Fisher Information Constraint

Xiwen Chen, Wenhui Zhu, Peijie Qiu +6

Analyzing time series data is crucial to a wide spectrum of applications, including economics, online marketplaces, and human healthcare. In particular, time series classification…

cs.CL2025

DRA-GRPO: Your GRPO Needs to Know Diverse Reasoning Paths for Mathematical Reasoning

Xiwen Chen, Wenhui Zhu, Peijie Qiu +7

Post-training LLMs with Reinforcement Learning, specifically Group Relative Policy Optimization (GRPO), has emerged as a paradigm for enhancing mathematical reasoning. However, sta…

cs.CL2025★ 1 cited

Talk Before You Retrieve: Agent-Led Discussions for Better RAG in Medical QA

Xuanzhao Dong, Wenhui Zhu, Hao Wang +5

Medical question answering (QA) is a reasoning-intensive task that remains challenging for large language models (LLMs) due to hallucinations and outdated domain knowledge. Retriev…

cs.CV2025

A BERT-Style Self-Supervised Learning CNN for Disease Identification from Retinal Images

Xin Li, Wenhui Zhu, Peijie Qiu +3

In the field of medical imaging, the advent of deep learning, especially the application of convolutional neural networks (CNNs) has revolutionized the analysis and interpretation…

cs.CV2025★ 1 cited

RetinalGPT: A Retinal Clinical Preference Conversational Assistant Powered by Large Vision-Language Models

Wenhui Zhu, Xin Li, Xiwen Chen +8

Recently, Multimodal Large Language Models (MLLMs) have gained significant attention for their remarkable ability to process and analyze non-textual data, such as images, videos, a…

cs.CV2025

Prompt-OT: An Optimal Transport Regularization Paradigm for Knowledge Preservation in Vision-Language Model Adaptation

Xiwen Chen, Wenhui Zhu, Peijie Qiu +6

Vision-language models (VLMs) such as CLIP demonstrate strong performance but struggle when adapted to downstream tasks. Prompt learning has emerged as an efficient and effective s…

eess.IV2025

EyeBench: A Call for More Rigorous Evaluation of Retinal Image Enhancement

Wenhui Zhu, Xuanzhao Dong, Xin Li +8

Over the past decade, generative models have achieved significant success in enhancement fundus images.However, the evaluation of these models still presents a considerable challen…

cs.LG2025

Sequence Complementor: Complementing Transformers For Time Series Forecasting with Learnable Sequences

Xiwen Chen, Peijie Qiu, Wenhui Zhu +5

Since its introduction, the transformer has shifted the development trajectory away from traditional models (e.g., RNN, MLP) in time series forecasting, which is attributed to its…

cs.CV2024

Many-MobileNet: Multi-Model Augmentation for Robust Retinal Disease Classification

Hao Wang, Wenhui Zhu, Xuanzhao Dong +9

In this work, we propose Many-MobileNet, an efficient model fusion strategy for retinal disease classification using lightweight CNN architecture. Our method addresses key challeng…