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X-WR-CALDESC:Events for Biomedical Mathematics Group
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TZID:Asia/Seoul
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TZOFFSETFROM:+0900
TZOFFSETTO:+0900
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DTSTART:20220101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20231027T140000
DTEND;TZID=Asia/Seoul:20231027T160000
DTSTAMP:20260425T105803
CREATED:20230929T230744Z
LAST-MODIFIED:20231018T020236Z
UID:8566-1698415200-1698422400@www.ibs.re.kr
SUMMARY:Hyun Kim\, Significance analysis for clustering with single-cell RNA-sequencing data
DESCRIPTION:We will discuss about “Significance analysis for clustering with single-cell RNA-sequencing data”\, Grabski\, Isabella N.\, Kelly Street\, and Rafael A. Irizarry.\, Nature Methods (2023): 1-7. \nAbstract \n\n\n\nUnsupervised clustering of single-cell RNA-sequencing data enables the identification of distinct cell populations. However\, the most widely used clustering algorithms are heuristic and do not formally account for statistical uncertainty. We find that not addressing known sources of variability in a statistically rigorous manner can lead to overconfidence in the discovery of novel cell types. Here we extend a previous method\, significance of hierarchical clustering\, to propose a model-based hypothesis testing approach that incorporates significance analysis into the clustering algorithm and permits statistical evaluation of clusters as distinct cell populations. We also adapt this approach to permit statistical assessment on the clusters reported by any algorithm. Finally\, we extend these approaches to account for batch structure. We benchmarked our approach against popular clustering workflows\, demonstrating improved performance. To show practical utility\, we applied our approach to the Human Lung Cell Atlas and an atlas of the mouse cerebellar cortex\, identifying several cases of over-clustering and recapitulating experimentally validated cell type definitions.
URL:https://www.ibs.re.kr/bimag/event/2023-10-27-jc/
LOCATION:Daejeon
CATEGORIES:Journal Club
ORGANIZER;CN="Jae Kyoung Kim":MAILTO:jaekkim@kaist.ac.kr
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