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Activity Number: 527 - Novel Statistical Methods for Single-Cell Genomic Data
Type: Invited
Date/Time: Thursday, August 11, 2022 : 10:30 AM to 12:20 PM
Sponsor: Section on Statistics in Genomics and Genetics
Abstract #320430
Title: An All-In-One Statistical Framework That Generates Realistic Single-Cell Omics Data and Infers Cell Heterogeneity Structure
Author(s): Jingyi Jessica Li*
Companies: University of California, Los Angeles
Keywords: single-cell; omics; sequence reads; simulator; inference; cell heterogeneous structure
Abstract:

The generation of realistic synthetic data is essential for benchmarking numerous computation tools developed for single-cell omics data. Here we propose an all-in-one statistical framework that generates single-cell omics data at both the read and count levels from various cell heterogeneity structures, including discrete cell types, continuous cell trajectories, and spatial cell locations. Our framework uses a unified probabilistic model with accessible likelihood. This probabilistic formulation is advantageous in that it enables a straightforward discernment of the heterogeneity structure that best fits a single-cell omics dataset, by leveraging the statistical model selection principle. Moreover, the ability to generate sequence reads, in addition to read counts, allows the benchmarking of low-level computational tools.


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