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Learn MoreIdentifying and removing multiplets is essential to improving the scalability and the reliability of single cell RNA sequencing (scRNA-seq). Multiplets create artificial cell types in the dataset. We propose a Gaussian-mixture-model-based multiplet identification method, GMM-Demux. GMM-Demux accurately identifies and removes multiplets through sample barcoding, including cell hashing and MULTI-seq. GMM-Demux uses a droplet formation model to authenticate putative cell types discovered from a scRNA-seq dataset. We generated two in-house cell hashing datasets and compared GMM-Demux against three state-of-the-art sample barcoding classifiers. We show that GMM-Demux is stable, highly accurate and recognized 9 multiplet-induced fake cell types in a PBMC dataset. SOURCE: Wei Chen (wei.chen@chp.edu) - UPMC Children's Hospital of Pittsburgh
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