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Spatial domain identification method based on multi-view graph convolutional network and contrastive learning

delete2025-10-01
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PRE
AI
X
Xikeng Liang
S
Shutong Xiao
L
Lu Ba
Y
Yuhui Feng
Z
Zhicheng Ma
F
Fatima Аdilova
J
Jing Qi
靳
靳水林 (Shuilin Jin) *
DOI:10.1371/journal.pcbi.1013369delete
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摘要

摘要

En 中文
空间转录组学是单细胞基因组学中一个快速发展的领域,它能够在组织内定量测量基因表达的同时提供空间信息。空间转录组学的一个关键挑战是识别空间结构化的域,这涉及分析转录组数据以找到具有相似表达模式的细胞簇及其空间分布。为了解决这些挑战,我们提出了一种名为DMGCN的新型深度学习方法用于域识别。该过程始于预处理阶段,构建两种类型的图:基于欧氏距离的空间图和基于余弦距离的特征图。这些图分别表示空间位置和基因表达。通过带有注意力机制的多视图图卷积编码器生成这两种图的嵌入,实现了图的独立卷积、协同卷积以及用于对比学习的扰动特征卷积。最后,采用全连接网络(FCN)解码器生成域标签并重建基因表达,以供下游分析。实验结果表明,DMGCN在包括空间聚类、轨迹推断和基因表达广播在内的各项任务中,均能持续优于当前最先进的方法。
Keyword:
GENE-EXPRESSION

期刊

P
PLoS Computational Biology
IF:
3.6
论文数:
638
被引数:
0

机构

H
harbin institute of technology
学者数:
8.0W
论文数: 6.6W
被引数: 66
A
Academy of Sciences of Uzbekistan
学者数:
1.1K
论文数: 669
被引数: 2
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