arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2302.09807eess.IVcs.AIcs.CVcs.LGstat.ML
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一种用于放射组学数据的新型协作自监督学习方法

A Novel Collaborative Self-Supervised Learning Method for Radiomic Data

Cincinnati Children’s Hospital Medical Center(辛辛那提儿童医院医疗中心);University of Cincinnati(辛辛那提大学);University of Cincinnati College of Medicine(辛辛那提大学医学院)

Zhiyuan Li, Hailong Li, Anca L. Ralescu, Jonathan R. Dillman, Nehal A. Parikh, Lili He

AI总结:

提出一种新型协作自监督学习方法,通过两个协作预任务学习放射组学数据的鲁棒特征表示,减少标注依赖,在分类和回归任务上优于现有方法。

摘要:

基于放射组学数据的计算机辅助疾病诊断在许多医学应用中具有重要意义。然而,开发这样的技术依赖于对放射图像的标注,而这一过程耗时、费力且成本高昂。在本工作中,我们提出了首个新型协作自监督学习方法,以解决标注放射组学数据不足的挑战,这些数据的特征不同于文本和图像数据。为此,我们提出了两个协作预任务,探索感兴趣区域之间的潜在病理或生物学关系,以及受试者之间的相似性和不相似性信息。我们的方法以自监督方式从放射组学数据中协作学习鲁棒的潜在特征表示,以减少人工标注工作,从而有益于疾病诊断。我们将所提出的方法与其他最先进的自监督学习方法在模拟研究和两个独立数据集上进行了比较。大量实验结果表明,我们的方法在分类和回归任务上均优于其他自监督学习方法。经过进一步改进,我们的方法在利用大规模未标注数据进行自动疾病诊断方面显示出潜在优势。

英文摘要:

The computer-aided disease diagnosis from radiomic data is important in many medical applications. However, developing such a technique relies on annotating radiological images, which is a time-consuming, labor-intensive, and expensive process. In this work, we present the first novel collaborative self-supervised learning method to solve the challenge of insufficient labeled radiomic data, whose characteristics are different from text and image data. To achieve this, we present two collaborative pretext tasks that explore the latent pathological or biological relationships between regions of interest and the similarity and dissimilarity information between subjects. Our method collaboratively learns the robust latent feature representations from radiomic data in a self-supervised manner to reduce human annotation efforts, which benefits the disease diagnosis. We compared our proposed method with other state-of-the-art self-supervised learning methods on a simulation study and two independent datasets. Extensive experimental results demonstrated that our method outperforms other self-supervised learning methods on both classification and regression tasks. With further refinement, our method shows the potential advantage in automatic disease diagnosis with large-scale unlabeled data available.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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