LoRA-TV: read depth profile-based clustering of tumor cells in single-cell sequencing.

Brief Bioinform

Key Laboratory of Biomedical Information Engineering of Ministry of Education and Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.

Published: May 2024

AI Article Synopsis

  • Single-cell sequencing has changed how we analyze the diversity in tumor cells, allowing for more detailed insights.
  • The new method, LoRA-TV, improves the clustering of tumor cells by using read depth profiles and optimizing data aggregation instead of analyzing each cell separately.
  • Results show that LoRA-TV outperforms existing methods in both accuracy and speed, confirming its utility through various data analyses.

Article Abstract

Single-cell sequencing has revolutionized our ability to dissect the heterogeneity within tumor populations. In this study, we present LoRA-TV (Low Rank Approximation with Total Variation), a novel method for clustering tumor cells based on the read depth profiles derived from single-cell sequencing data. Traditional analysis pipelines process read depth profiles of each cell individually. By aggregating shared genomic signatures distributed among individual cells using low-rank optimization and robust smoothing, the proposed method enhances clustering performance. Results from analyses of both simulated and real data demonstrate its effectiveness compared with state-of-the-art alternatives, as supported by improvements in the adjusted Rand index and computational efficiency.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11179121PMC
http://dx.doi.org/10.1093/bib/bbae277DOI Listing

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