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arXiv 2404.08027cs.CVcs.AIcs.LGq-bio.QM

SurvMamba:面向生存预测的多粒度多模态交互状态空间模型

SurvMamba: State Space Model with Multi-grained Multi-modal Interaction for Survival Prediction

School of Informatics, Xiamen University(厦门大学信息学院);National Institute for Data Science in Health and Medicine, Xiamen University(厦门大学健康与医学数据科学国家研究院);Aginome Scientific

Ying Chen, Jiajing Xie, Yuxiang Lin, Yuhang Song, Wenxian Yang, Rongshan Yu

AI总结:

针对病理图像与基因组多模态生存预测,本文提出 SurvMamba,利用 HIM 和 IFM 模块实现多粒度模态内交互与级联模态间融合,在五个 TCGA 数据集上兼顾性能与计算效率。

摘要:

将病理图像与基因组数据相结合的多模态学习已显著提升了生存预测的准确性。然而,现有方法尚未充分利用全切片图像(WSIs)和转录组数据中固有的层次结构,而这些结构本可用于获得更好的模态内表征和模态间整合。此外,许多现有研究试图通过注意力机制改进多模态表征,但在处理高维 WSIs 和转录组数据时,不可避免地导致较高复杂度。近来,名为 Mamba 的结构化状态空间模型因其以低复杂度建模长序列的优越性能而成为一种有前景的方法。本研究提出用于生存预测的多粒度多模态交互 Mamba(SurvMamba)。SurvMamba 通过层次交互 Mamba(HIM)模块实现,该模块促进不同粒度上的高效模态内交互,从而捕获更细致的局部特征以及丰富的全局表征。此外,研究使用交互融合 Mamba(IFM)模块进行级联的模态间交互式融合,为生存预测生成更全面的特征。在五个 TCGA 数据集上的综合评估表明,SurvMamba 在性能和计算成本方面均优于其他现有方法。

英文摘要:

Multi-modal learning that combines pathological images with genomic data has significantly enhanced the accuracy of survival prediction. Nevertheless, existing methods have not fully utilized the inherent hierarchical structure within both whole slide images (WSIs) and transcriptomic data, from which better intra-modal representations and inter-modal integration could be derived. Moreover, many existing studies attempt to improve multi-modal representations through attention mechanisms, which inevitably lead to high complexity when processing high-dimensional WSIs and transcriptomic data. Recently, a structured state space model named Mamba emerged as a promising approach for its superior performance in modeling long sequences with low complexity. In this study, we propose Mamba with multi-grained multi-modal interaction (SurvMamba) for survival prediction. SurvMamba is implemented with a Hierarchical Interaction Mamba (HIM) module that facilitates efficient intra-modal interactions at different granularities, thereby capturing more detailed local features as well as rich global representations. In addition, an Interaction Fusion Mamba (IFM) module is used for cascaded inter-modal interactive fusion, yielding more comprehensive features for survival prediction. Comprehensive evaluations on five TCGA datasets demonstrate that SurvMamba outperforms other existing methods in terms of performance and computational cost.

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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