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Deep learning enables accurate clustering with batch effect removal in single-cell RNA-seq analysis.

ABSTRACT: Single-cell RNA sequencing (scRNA-seq) can characterize cell types and states through unsupervised clustering, but the ever increasing number of cells and batch effect impose computational challenges. We present DESC, an unsupervised deep embedding algorithm that clusters scRNA-seq data by iteratively optimizing a clustering objective function. Through iterative self-learning, DESC gradually removes batch effects, as long as technical differences across batches are smaller than true biological variations. As a soft clustering algorithm, cluster assignment probabilities from DESC are biologically interpretable and can reveal both discrete and pseudotemporal structure of cells. Comprehensive evaluations show that DESC offers a proper balance of clustering accuracy and stability, has a small footprint on memory, does not explicitly require batch information for batch effect removal, and can utilize GPU when available. As the scale of single-cell studies continues to grow, we believe DESC will offer a valuable tool for biomedical researchers to disentangle complex cellular heterogeneity.

SUBMITTER: Li X 

PROVIDER: S-EPMC7214470 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Deep learning enables accurate clustering with batch effect removal in single-cell RNA-seq analysis.

Li Xiangjie X   Wang Kui K   Lyu Yafei Y   Pan Huize H   Zhang Jingxiao J   Stambolian Dwight D   Susztak Katalin K   Reilly Muredach P MP   Hu Gang G   Li Mingyao M  

Nature communications 20200511 1

Single-cell RNA sequencing (scRNA-seq) can characterize cell types and states through unsupervised clustering, but the ever increasing number of cells and batch effect impose computational challenges. We present DESC, an unsupervised deep embedding algorithm that clusters scRNA-seq data by iteratively optimizing a clustering objective function. Through iterative self-learning, DESC gradually removes batch effects, as long as technical differences across batches are smaller than true biological v  ...[more]

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