Subgraph extraction and graph representation learning for single cell Hi-C imputation and clustering.

Zheng, Jiahao; Yang, Yuedong; Dai, Zhiming · Brief Bioinform · 2023

basic_science · Level V

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Abstract

Single-cell Hi-C (scHi-C) technology enables the investigation of 3D chromatin structure variability across individual cells. However, the analysis of scHi-C data is challenged by a large number of missing values. Here, we present a scHi-C data imputation model HiC-SGL, based on Subgraph extraction and graph representation learning. HiC-SGL can also learn informative low-dimensional embeddings of cells. We demonstrate that our method surpasses existing methods in terms of imputation accuracy and clustering performance by various metrics.

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