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A benchmark of batch-effect correction methods for single-cell RNA sequencing data
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A benchmark of batch-effect correction methods for single-cell RNA sequencing data
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A benchmark of batch-effect correction methods for single-cell RNA sequencing data
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Journal Article
A benchmark of batch-effect correction methods for single-cell RNA sequencing data
2020
Overview
Background
Large-scale single-cell transcriptomic datasets generated using different technologies contain batch-specific systematic variations that present a challenge to batch-effect removal and data integration. With continued growth expected in scRNA-seq data, achieving effective batch integration with available computational resources is crucial. Here, we perform an in-depth benchmark study on available batch correction methods to determine the most suitable method for batch-effect removal.
Results
We compare 14 methods in terms of computational runtime, the ability to handle large datasets, and batch-effect correction efficacy while preserving cell type purity. Five scenarios are designed for the study: identical cell types with different technologies, non-identical cell types, multiple batches, big data, and simulated data. Performance is evaluated using four benchmarking metrics including kBET, LISI, ASW, and ARI. We also investigate the use of batch-corrected data to study differential gene expression.
Conclusion
Based on our results, Harmony, LIGER, and Seurat 3 are the recommended methods for batch integration. Due to its significantly shorter runtime, Harmony is recommended as the first method to try, with the other methods as viable alternatives.
Publisher
BioMed Central,Springer Nature B.V,BMC
