Author

Lei Wang

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Preprint Aug 2026

Graph-Supervised Hierarchical Clinical Alignment for Radiology Report Generation with Large Language Models

This work proposes Graph-Supervised Hierarchical Clinical Alignment, which reformulates image-report supervision as a hierarchical clinical alignment problem, and combines instance-conditioned discriminative matching with disease-conditioned soft regularization, enabling fine-grained yet clinically consistent cross-mod...

Ying-Shu Li, Yun-Yi Liu, Zhan-Yu Wang et al. · 0 citations

#computer vision Jun 2026

VTOS: Learning to Orchestrate Vision Tools by Co-Searching Solutions and Observers

This work introduces VTOS (Vision Tools Orchestration Search), a framework for adaptive visual tool orchestration through joint solution-observer search that outperforms static tool pipelines and agentic visual-programming baselines in complex settings such as dense, occluded scenes and out-of-distribution segmentation...

Jin-Chao Ge, Lingqiao Liu, Shu-Wen Zhao et al. · arXiv.org · 0 citations

#small language model Preprint Aug 2026

DRRG: A Discrete Diffusion Framework for Radiology Report Generation

Discrete diffusion provides an effective alternative to autoregressive radiology report generation by enabling iterative, bidirectional report refinement.

Shaoyang Zhoua, Ying-Shu Li, Yun-Yi Liu et al. · 0 citations