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cs.CV2026

Flash-GRPO: Efficient Alignment for Video Diffusion via One-Step Policy Optimization

Xiaoxuan He, Siming Fu, Zeyue Xue +9

Group Relative Policy Optimization has emerged as essential for aligning video diffusion models with human preferences, but faces a critical computational bottleneck: training a 14…

cs.CV2026

REVERSE: Reinforcing Evidence Verification and Search for Agentic Image geo-localization

Yong Li, Furong Jia, Dacheng Yin +4

Image geo-localization aims to determine where a photograph was taken, a task that often requires more than recognizing visible landmarks. Human experts typically solve it through…

cs.CV2026

Beyond Chain-of-Thought: Rewrite as a Universal Interface for Generative Multimodal Embeddings

Peixi Wu, Ke Mei, Feipeng Ma +15

Multimodal Large Language Models (MLLMs) have emerged as a promising foundation for universal multimodal embeddings. Recent studies have shown that reasoning-driven generative mult…

cs.CV2026

SAIL: Self-Amplified Iterative Learning for Diffusion Model Alignment with Minimal Human Feedback

Xiaoxuan He, Siming Fu, Wanli Li +5

Aligning diffusion models with human preferences remains challenging, particularly when reward models are unavailable or impractical to obtain, and collecting large-scale preferenc…

cs.CV2025

WeMMU: Enhanced Bridging of Vision-Language Models and Diffusion Models via Noisy Query Tokens

Jian Yang, Dacheng Yin, Xiaoxuan He +6

Recent progress in multimodal large language models (MLLMs) has highlighted the challenge of efficiently bridging pre-trained Vision-Language Models (VLMs) with Diffusion Models. W…

cs.CV2025

TempFlow-GRPO: When Timing Matters for GRPO in Flow Models

Xiaoxuan He, Siming Fu, Yuke Zhao +5

Recent flow matching models for text-to-image generation have achieved remarkable quality, yet their integration with reinforcement learning for human preference alignment remains…

cs.CV2025

WeThink: Toward General-purpose Vision-Language Reasoning via Reinforcement Learning

Jie Yang, Feipeng Ma, Zitian Wang +4

Building on the success of text-based reasoning models like DeepSeek-R1, extending these capabilities to multimodal reasoning holds great promise. While recent works have attempted…

cs.CV2025

R1-Onevision: Advancing Generalized Multimodal Reasoning through Cross-Modal Formalization

Yi Yang, Xiaoxuan He, Hongkun Pan +9

Large Language Models have demonstrated remarkable reasoning capability in complex textual tasks. However, multimodal reasoning, which requires integrating visual and textual infor…

cs.CV2024

MMAR: Towards Lossless Multi-Modal Auto-Regressive Probabilistic Modeling

Jian Yang, Dacheng Yin, Yizhou Zhou +4

Recent advancements in multi-modal large language models have propelled the development of joint probabilistic models capable of both image understanding and generation. However, w…