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20242026
most citedIIMedGPT: Promoting Large Language Model Capabilities of Medical Tasks by Efficient Human Preference Alignment

1 citations · 1 across the 7 of their papers we have counts for

collaborators

9 papers

cs.CV2026

BAS-OPD: Budget-Aware Selective On-Policy Self-Distillation for Fine-Grained Multimodal Perception

Zihan Chen, Hengguang Zhou, Yuan Kang +5

Multimodal large language models (MLLMs) often struggle with fine-grained visual perception when processing complete images, as critical evidence may only appear in local regions.…

cs.CV2026

HarmVideoBench: Benchmarking Harmful Video Understanding in Large Multimodal Models

Jiajun Wu, Haoyu Kang, Yining Sun +13

Large vision-language models (LVLMs) have recently shown immense potential in automated content moderation, sparking growing interest in developing harmful-video benchmarks. Howeve…

cs.LG2026

The Paradox of Outcome Optimization: A Causal Information-Theoretic Bound on Reasoning Shortcuts in LLMs

Zihan Chen, Yiming Zhang, Wenxiang Geng +2

Large Language Models (LLMs) aligned via outcome-based Reinforcement Learning (RL) frequently exhibit a critical failure mode: they achieve high performance on in-distribution benc…

cs.LG2025

Rethinking RL Evaluation: Can Benchmarks Truly Reveal Failures of RL Methods?

Zihan Chen, Yiming Zhang, Hengguang Zhou +3

Current benchmarks are inadequate for evaluating progress in reinforcement learning (RL) for large language models (LLMs).Despite recent benchmark gains reported for RL, we find th…

cs.CV2025

CircuitProbe: Tracing Visual Temporal Evidence Flow in Video Language Models

Yiming Zhang, Zhuokai Zhao, Chengzhang Yu +8

Autoregressive large vision--language models (LVLMs) interface video and language by projecting video features into the LLM's embedding space as continuous visual token embeddings.…

cs.CL2025

FRAME: Feedback-Refined Agent Methodology for Enhancing Medical Research Insights

Chengzhang Yu, Yiming Zhang, Zhixin Liu +3

The automation of scientific research through large language models (LLMs) presents significant opportunities but faces critical challenges in knowledge synthesis and quality assur…

cs.CL2025★ 1 cited

IIMedGPT: Promoting Large Language Model Capabilities of Medical Tasks by Efficient Human Preference Alignment

Yiming Zhang, Zheng Chang, Wentao Cai +4

Recent researches of large language models(LLM), which is pre-trained on massive general-purpose corpora, have achieved breakthroughs in responding human queries. However, these me…

cs.CV2024

Beyond Training: Dynamic Token Merging for Zero-Shot Video Understanding

Yiming Zhang, Zhuokai Zhao, Zhaorun Chen +3

Recent advancements in multimodal large language models (MLLMs) have opened new avenues for video understanding. However, achieving high fidelity in zero-shot video tasks remains c…

cs.CV2024

RankCLIP: Ranking-Consistent Language-Image Pretraining

Yiming Zhang, Zhuokai Zhao, Zhaorun Chen +3

Self-supervised contrastive learning models, such as CLIP, have set new benchmarks for vision-language models in many downstream tasks. However, their dependency on rigid one-to-on…