activity
20242026
collaborators

10 papers

cs.AI2026

When Prompts Become Pixels: Prompt-Region Grounding for Multimodal Reasoning

Yongxin Wang, Ruizhe Zhou, Yueling Tang +4

Multimodal large language models increasingly reason over screenshots and documents where the task itself may be written in pixels. Yet benchmarks usually place questions in text,…

cs.CV2026

Latent Visual States for Efficient Multimodal Reasoning

Xiuwei Chen, Wentao Hu, Yongxin Wang +8

The integration of visual evidence has significantly enhanced the capabilities of large multimodal models. However, this integration predominantly relies on generating discrete out…

cs.LG2026

Prune-OPD: Efficient and Reliable On-Policy Distillation for Long-Horizon Reasoning

Zhicheng Yang, Zhijiang Guo, Yifan Song +5

On-policy distillation (OPD) leverages dense teacher rewards to enhance reasoning models. However, scaling OPD to long-horizon tasks exposes a critical flaw: as the student's gener…

cs.AI2026

Accordion-Thinking: Self-Regulated Step Summaries for Efficient and Readable LLM Reasoning

Zhicheng Yang, Zhijiang Guo, Yinya Huang +5

Scaling test-time compute via long Chain-of-Thought unlocks remarkable gains in reasoning capabilities, yet it faces practical limits due to the linear growth of KV cache and quadr…

cs.LG2025

CARE What Fails: Contrastive Anchored-REflection for Verifiable Multimodal Reasoning

Yongxin Wang, Zhicheng Yang, Meng Cao +5

Group-relative reinforcement learning with verifiable rewards (RLVR) often wastes the most informative data it already has the failures. When all rollouts are wrong, gradients stal…

cs.LG2025

Critique to Verify: Accurate and Honest Test-Time Scaling with RL-Trained Verifiers

Zhicheng Yang, Zhijiang Guo, Yinya Huang +4

Test-time scaling via solution sampling and aggregation has become a key paradigm for improving the reasoning performance of Large Language Models (LLMs). While reward model select…

cs.LG2025

Depth-Breadth Synergy in RLVR: Unlocking LLM Reasoning Gains with Adaptive Exploration

Zhicheng Yang, Zhijiang Guo, Yinya Huang +6

Reinforcement Learning with Verifiable Reward (RLVR) is a powerful method for enhancing the reasoning abilities of Large Language Models, but its full potential is limited by a lac…

cs.RO2025

PhyBlock: A Progressive Benchmark for Physical Understanding and Planning via 3D Block Assembly

Liang Ma, Jiajun Wen, Min Lin +12

While vision-language models (VLMs) have demonstrated promising capabilities in reasoning and planning for embodied agents, their ability to comprehend physical phenomena, particul…

cs.CV2024

EACO: Enhancing Alignment in Multimodal LLMs via Critical Observation

Yongxin Wang, Meng Cao, Haokun Lin +5

Multimodal large language models (MLLMs) have achieved remarkable progress on various visual question answering and reasoning tasks leveraging instruction fine-tuning specific data…

cs.CV2024

Web2Code: A Large-scale Webpage-to-Code Dataset and Evaluation Framework for Multimodal LLMs

Sukmin Yun, Haokun Lin, Rusiru Thushara +14

Multimodal large language models (MLLMs) have shown impressive success across modalities such as image, video, and audio in a variety of understanding and generation tasks. However…