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Xiaoxiao Ma

7 accepted papers

2026

Group Critical-token Policy Optimization for Autoregressive Image Generation

ICLR 2026poster

Recent studies have extended Reinforcement Learning with Verifiable Rewards (RLVR) to autoregressive (AR) visual generation and achieved promising progress. However, existing methods typically apply uniform optimization across all image tokens, while the varying contributions of different image toke…

Cited by 0SourcecodeScholar
2026

MaskFocus: Focusing Policy Optimization on Critical Steps for Masked Image Generation

CVPR 2026

Reinforcement learning (RL) has demonstrated significant potential for post-training language models and autoregressive visual generative models, but adapting RL to masked generative models (MGMs) remains challenging. The core factor is that policy optimization requires the probability likelihood of

Cited by 0SourcecodeScholar
2025

HQ-CLIP: Leveraging Large Vision-Language Models to Create High-Quality Image-Text Datasets and CLIP Models

ICCV 2025poster

Large-scale but noisy image-text pair data have paved the way for the success of Contrastive Language-Image Pretraining (CLIP). As the foundation vision encoder, CLIP in turn serves as the cornerstone for most large vision-language models (LVLMs). This interdependence naturally raises an interesting…

Cited by 0SourcePDFScholar
2025

Towards Better & Faster Autoregressive Image Generation: From the Perspective of Entropy

NeurIPS 2025poster

In this work, we first revisit the sampling issues in current autoregressive (AR) image generation models and identify that image tokens, unlike text tokens, exhibit lower information density and non-uniform spatial distribution. Accordingly, we present an entropy-informed decoding strategy that fac…

Cited by 0SourceScholar
2024

Masked Pre-training Enables Universal Zero-shot Denoiser

NeurIPS 2024poster

In this work, we observe that model trained on vast general images via masking strategy, has been naturally embedded with their distribution knowledge, thus spontaneously attains the underlying potential for strong image denoising. Based on this observation, we propose a novel zero-shot denoising pa…

2024

On Fake News Detection with LLM Enhanced Semantics Mining

EMNLP 2024main

Large language models (LLMs) have emerged as valuable tools for enhancing textual features in various text-related tasks. Despite their superiority in capturing the lexical semantics between tokens for text analysis, our preliminary study on two popular LLMs, i.e., ChatGPT and Llama2, showcases that…

2024

Stronger Fewer & Superior: Harnessing Vision Foundation Models for Domain Generalized Semantic Segmentation

CVPR 2024poster

In this paper we first assess and harness various Vision Foundation Models (VFMs) in the context of Domain Generalized Semantic Segmentation (DGSS). Driven by the motivation that Leveraging Stronger pre-trained models and Fewer trainable parameters for Superior generalizability we introduce a robust…