activity
20242026
collaborators

10 papers

cs.AI2026

Xiaomi-GUI-0 Technical Report

Wanxia Cao, Chengzhen Duan, Pei Fu +29

Graphical user interface (GUI) agents build on vision-language models to complete user tasks end-to-end in real applications through interface actions such as tapping, swiping, tex…

cs.CV2026

Curriculum Group Policy Optimization: Adaptive Sampling for Unleashing the Potential of Text-to-Image Generation

Baoteng Li, Xianghao Zang, Xinran Wang +8

Text-to-Image (T2I) generation has achieved remarkable progress in recent years. Meanwhile, reinforcement learning methods, particularly those based on Group Relative Policy Optimi…

cs.CV2026

CoLoGen: Progressive Learning of Concept-Localization Duality for Unified Image Generation

YuXin Song, Yu Lu, Haoyuan Sun +6

Unified conditional image generation remains difficult because different tasks depend on fundamentally different internal representations. Some require conceptual understanding for…

cs.CV2025

Principled RL for Flow Matching Emerges from the Chunk-level Policy Optimization

Yifu Luo, Haoyuan Sun, Xinhao Hu +12

Recent Progress in post-training flow matching for text-to-image (T2I) generation with Group Relative Policy Optimization (GRPO) has demonstrated strong potential. However, it is h…

cs.CV2025

Reinforcement Learning Meets Masked Generative Models: Mask-GRPO for Text-to-Image Generation

Yifu Luo, Xinhao Hu, Keyu Fan +6

Reinforcement learning (RL) has garnered increasing attention in text-to-image (T2I) generation. However, most existing RL approaches are tailored to either diffusion models or aut…

cs.LG2025

Distribution Preference Optimization: A Fine-grained Perspective for LLM Unlearning

Kai Qin, Jiaqi Wu, Jianxiang He +8

As Large Language Models (LLMs) demonstrate remarkable capabilities learned from vast corpora, concerns regarding data privacy and safety are receiving increasing attention. LLM un…

cs.LG2025

The Hidden Link Between RLHF and Contrastive Learning

Xufei Lv, Kehai Chen, Haoyuan Sun +3

Alignment of large language models (LLMs) with human values has recently garnered significant attention, with prominent examples including the canonical yet costly Reinforcement Le…

cs.CL2025

Reinforcement Fine-Tuning Powers Reasoning Capability of Multimodal Large Language Models

Haoyuan Sun, Jiaqi Wu, Bo Xia +7

Standing in 2025, at a critical juncture in the pursuit of Artificial General Intelligence (AGI), reinforcement fine-tuning (RFT) has demonstrated significant potential in enhancin…

cs.CV2024

Generalizing Alignment Paradigm of Text-to-Image Generation with Preferences through -divergence Minimization

Haoyuan Sun, Bo Xia, Yongzhe Chang +1

Direct Preference Optimization (DPO) has recently expanded its successful application from aligning large language models (LLMs) to aligning text-to-image models with human prefere…

cs.LG2024

A Method on Searching Better Activation Functions

Haoyuan Sun, Zihao Wu, Bo Xia +5

The success of artificial neural networks (ANNs) hinges greatly on the judicious selection of an activation function, introducing non-linearity into network and enabling them to mo…