Xiaoman Zhang (张小嫚)

Hi, I am a postdoctoral fellow at Harvard University in the Department of Biomedical Informatics, working with Prof. Pranav Rajpurkar.

I received my PhD in Shanghai Jiao Tong Universiy, advised by Prof. Weidi Xie and Prof. Ya Zhang. I received my bachelor degree from School for the Gifted Young, University of Science and Technology of China in June 2019.

My research interest focuses on Artificial Intelligence for Healthcare (AI4Health), with the ultimate goal of developing a generalist medical foundation model. I am also intereated in AI for scientific discovery, with application across biology, chemistry, and medicine.

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Recent News

Congratulations to all co-authors on the following acceptances, and thank you for the excellent teamwork!

[12/2025] 1 paper has been accepted by JBHI.
[12/2025] 1 paper has been accepted by Nature.
[12/2025] 1 paper has been accepted by NEJM AI.
[11/2025] 1 paper has been accepted by Machine Learning for Health (ML4H) 2025.
[09/2025] 1 paper has been accepted by Radiology.
[09/2025] 3 papers have been accepted by Pacific Symposium on Biocomputing (PSB) 2026.
[09/2025] 2 abstracts have been accepted by 2025 RSNA Cutting-Edge Research Abstracts.
[09/2025] 1 paper has been accepted by Nature Scientific Data.
[08/2025] 1 paper has been accepted by npj Digital Medicine.
[06/2025] ReXVQA, a large-scale, high quality question answering benchmark for chest X-rays, is released.
[06/2025] 1 paper has been accepted by Nature Communications.
[05/2025] ReXGradient-160K, the largest Chest X-ray report generation dataset in terms of patient number, is released.
[04/2025] 2 papers have been accepted by CHIL 2025.
[02/2025] 1 paper has been accepted by CVPR 2025.
[02/2025] 1 abstract has been accepted by SAIL 2025.
[02/2025] 1 paper has been accepted by CMIG.
[01/2025] 1 abstract has been selected as Oral Presentation at SIIM 2025.
[01/2025] 2 papers has been accepted by AAAI Bridge Program AIMedHealth (1 paper with Best Paper Award).

Hugging Face Datasets & Benchmarks

ReXGradient-160K: A large-scale publicly available dataset of chest radiographs with free-text reports ReXVQA: A large-scale visual question answering benchmark for generalist chest X-ray understanding 3DReasonKnee: A 3D Reasoning Benchmark for Knee MRI ReXGroundingCT: A 3D Chest CT Dataset for Segmentation of Findings from Free-Text Reports ReXRank: A Public Leaderboard for AI-Powered Radiology Report Generations RadGenome-ChestCT: A grounded vision-language dataset for chest CT analysis PMC-VQA: A large-scale, high quality question answering benchmark for chest X-rays

Selected Research

ReXGroundingCT: A 3D Chest CT Dataset for Segmentation of Findings from Free-Text Reports
Mohammed Baharoon, Luyang Luo, Michael Moritz, Abhinav Kumar, Sung Eun Kim, Xiaoman Zhang, Miao Zhu, Mahmoud Hussain Alabbad, Maha Sbayel Alhazmi, Neel P. Mistry, Lucas Bijnens, Kent Ryan Kleinschmidt, Brady Chrisler, Sathvik Suryadevara, Sri Sai Dinesh Jaliparthi, Noah Michael Prudlo, Mark David Marino, Jeremy Palacio, Rithvik Akula, Di Zhou, Hong-Yu Zhou, Ibrahim Ethem Hamamci, Scott J. Adams, Hassan Rayhan AlOmaish, Pranav Rajpurkar
Technical Report, 2025
FactCheXcker: Mitigating Measurement Hallucinations in Chest X-ray Report Generation Models
Alice Heiman, Xiaoman Zhang, Emma Chen, Sung Eun Kim, Pranav Rajpurkar
CVPR, 2025
ReXrank: A Public Leaderboard for AI-Powered Radiology Report Generations
Xiaoman Zhang, Hong-Yu Zhou, Xiaoli Yang, Oishi Banerjee, Julián N. Acosta, Josh Miller, Ouwen Huang, Pranav Rajpurkar
AAAI Bridge Program - AIMedHealth, 2025
AutoRG-Brain: Grounded Report Generation for Brain MRI
Jiayu Lei, Xiaoman Zhang, Chaoyi Wu, Lisong Dai, Ya Zhang, Yanyong Zhang, Yanfeng Wang, Weidi Xie, Yuehua Li
JBHI, 2025
RadGenome-Chest CT: A Grounded Vision-Language Dataset for Chest CT Analysis
Xiaoman Zhang, Chaoyi Wu, Ziheng Zhao, Jiayu Lei, Ya Zhang, Yanfeng Wang, Weidi Xie
Nature Scientific Data, 2025
Large-Vocabulary Segmentation for Medical Images with Text Prompts
Ziheng Zhao, Yao Zhang, Chaoyi Wu, Xiaoman Zhang, Xiao Zhou, Ya Zhang, Yanfeng Wang, and Weidi Xie
npj Digital Medicine, 2025
Knowledge-enhanced Visual-Language Pretraining for Computational Pathology
Xiao Zhou, Xiaoman Zhang, Chaoyi Wu, Ya Zhang, Yanfeng Wang, Weidi Xie
ECCV (Oral), 2024
Towards Building Multilingual Language Model for Medicine
Pengcheng Qiu*, Chaoyi Wu*, Xiaoman Zhang, Weixiong Lin, Haicheng Wang, Ya Zhang, Yanfeng Wang, Weidi Xie
Nature Communications, 2024
Towards Generalist Foundation Model for Radiology by Leveraging Web-scale 2D & 3D Medical Data
Chaoyi Wu*,Xiaoman Zhang*, Yanfeng Wang, Ya Zhang, Weidi Xie
Nature Communications, 2025
PMC-VQA: Visual Instruction Tuning for Medical Visual Question Answering
Xiaoman Zhang*, Chaoyi Wu*, Ziheng Zhao, Weixiong Lin, Yanfeng Wang, Ya Zhang, Weidi Xie
Communications Medicine, 2024
PMC-LLaMA: Towards Building Open-source Language Models for Medicineg
Chaoyi Wu*, Weixiong Lin*,Xiaoman Zhang, Yanfeng Wang, Ya Zhang, Weidi Xie
Journal of the American Medical Informatics Association, 2024
PMC-CLIP: Contrastive Language-Image Pre-training using Biomedical Documents
Weixiong Lin*, Ziheng Zhao*, Xiaoman Zhang, Chaoyi Wu, Yanfeng Wang, Ya Zhang, Weidi Xie
MICCAI, 2023 (Final List of MICCAI Young Scientist Publication Impact Award)
Knowledge-enhanced Visual-Language Pre-training on Chest Radiology Images
Xiaoman Zhang, Chaoyi Wu, Yanfeng Wang, Ya Zhang, Weidi Xie
Nature Communications, 2023

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