arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.09777cs.CV
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多模态脑网络的深度表示学习

Deep Representation Learning For Multimodal Brain Networks

Arizona State University(亚利桑那州立大学);University of Pittsburgh(匹兹堡大学);University of Southern California(南加州大学)

Wen Zhang, Liang Zhan, Paul Thompson, Yalin Wang

摘要:

应用网络科学的方法来研究人脑的功能和解剖结构是现代医学成像分析的一个热点。由于复杂的网络拓扑结构,对于单个大脑,从多模态大脑网络中挖掘有区别的网络表示是不平凡的。最近深度学习技术在图结构数据上的成功表明了一种新的方法来建模非线性跨模态关系。然而,目前的深度脑网络方法要么忽略了内在的图形拓扑结构,要么需要在一个组内共享的网络基础。为了应对这些挑战,我们提出了一种新的端到端深度图表示学习(Deep Multimodal Brain Networks - DMBN)来融合多模态脑网络。具体来说,我们通过图形编码和解码过程来破译跨模态关系。从大脑结构网络到功能网络的高阶网络映射是在节点域中学习的。学习的网络表示是一组节点特征,这些节点特征提供信息,以监督的方式诱导大脑显着性图。我们在合成和真实图像数据中测试我们的框架。实验结果表明,该方法优于其他一些国家的最先进的深脑网络模型。

英文摘要:

Applying network science approaches to investigate the functions and anatomy of the human brain is prevalent in modern medical imaging analysis. Due to the complex network topology, for an individual brain, mining a discriminative network representation from the multimodal brain networks is non-trivial. The recent success of deep learning techniques on graph-structured data suggests a new way to model the non-linear cross-modality relationship. However, current deep brain network methods either ignore the intrinsic graph topology or require a network basis shared within a group. To address these challenges, we propose a novel end-to-end deep graph representation learning (Deep Multimodal Brain Networks - DMBN) to fuse multimodal brain networks. Specifically, we decipher the cross-modality relationship through a graph encoding and decoding process. The higher-order network mappings from brain structural networks to functional networks are learned in the node domain. The learned network representation is a set of node features that are informative to induce brain saliency maps in a supervised manner. We test our framework in both synthetic and real image data. The experimental results show the superiority of the proposed method over some other state-of-the-art deep brain network models.

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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