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Xiang An

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Preprint Sep 2026

HaPRL: Human-Anchored Process Reinforcement Learning for Visual Search Agent

Multi-turn visual search agents answer questions about high-resolution images by iteratively deciding where to look. Reinforcement learning for these agents rewards only the final answer, leaving the search process unsupervised. Consequently, faulty routes in which the reasoning process is erroneous yet the final resul...

Zhangquan Chen, Yao-Xin Niu, Xiang An et al. · 0 citations
Preprint Sep 2026

Spatial-OPSD: Self-Improving Spatial Reasoning via Label-Free Self-Distillation

Spatial-OPSD, a label-free self-improvement framework that instead exploits spatial structure naturally available from perception and reconstruction tools, is introduced, achieving the highest average among the open models and the best results on three of five spatial reasoning benchmarks.

Zhen-Yu Liu, Zhangquan Chen, Ke-Yi Chen et al. · 0 citations
Preprint Sep 2026

EviViT: Evidence-Adaptive Vision Transformers for Fine-Grained Perception

EviViT, a lightweight attachment that learns where a pretrained vision transformer should acquire detail, is introduced, a lightweight attachment that learns where a pretrained vision transformer should acquire detail without refitting.

Yao-Xin Niu, Zhangquan Chen, Yang Zhang et al. · 0 citations

Towards Streaming Referring Video Segmentation via Large Language Model

This paper proposes a simple but efficient MLLM-based framework StreamingRVOS, which can extend image-level segmentation to video-level via a streaming pipeline without introducing extra parameters and achieves excellent performance in referring video segmentation.

Wenkang Zhang, Kaicheng Yang, Xiang An et al. · 0 citations
Jul 2026

Mage-VL: An Efficient Codec-Native Streaming Multimodal Foundation Model

Mage-VL is presented, an efficient codec-native streaming foundation model for real-time multimodal understanding and interaction and establishes AI4AI data pipelines encompassing prompt-code joint optimization for multimodal captioning and AI-driven performance diagnosis to guide training recipes.

Senqiao Yang, Kaichen Zhang, Zhaoyang Jia et al. · 3 citations

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