arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2303.09007cs.LGcs.AIq-bio.QM
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流式细胞术数据分析的机器学习

Machine Learning for Flow Cytometry Data Analysis

University of Southampton(南安普顿大学)

Yanhua Xu

摘要:

流式细胞术主要用于根据细胞中特异性标志物的表达来检测一些生化物质的特性。它特别适用于检测膜表面受体、抗原、离子或DNA/RNA表达期间。它不仅可以用作生物医学研究工具,用于识别混合群体中不同类型的细胞,还可以用作诊断工具,用于分类与疾病相关的异常细胞群体。现代流式细胞仪可以同时快速分析数万个细胞,同时还可以测量单个细胞的多个参数。然而,流式细胞仪的快速发展使得传统的分析方法解释流式细胞术数据具有挑战性。研究人员需要能够在从数百万个细胞收集的多维数据中手动区分有趣的细胞群。因此,必须找到一种用于自动分析流式细胞术数据的稳健方法,特别是自动识别细胞群。本文主要研究了现有自动门控算法在真实数据集和人工数据集上的缺陷。三个有代表性的自动聚类算法被选中应用,比较和评估完全和部分自动门控。本文还实现了一个子空间聚类算法ProClus。ProClus在流式细胞仪中的性能不太好,但它仍然是一种有用的检测噪声的算法。

英文摘要:

Flow cytometry mainly used for detecting the characteristics of a number of biochemical substances based on the expression of specific markers in cells. It is particularly useful for detecting membrane surface receptors, antigens, ions, or during DNA/RNA expression. Not only can it be employed as a biomedical research tool for recognising distinctive types of cells in mixed populations, but it can also be used as a diagnostic tool for classifying abnormal cell populations connected with disease. Modern flow cytometers can rapidly analyse tens of thousands of cells at the same time while also measuring multiple parameters from a single cell. However, the rapid development of flow cytometers makes it challenging for conventional analysis methods to interpret flow cytometry data. Researchers need to be able to distinguish interesting-looking cell populations manually in multi-dimensional data collected from millions of cells. Thus, it is essential to find a robust approach for analysing flow cytometry data automatically, specifically in identifying cell populations automatically. This thesis mainly concerns discover the potential shortcoming of current automated-gating algorithms in both real datasets and synthetic datasets. Three representative automated clustering algorithms are selected to be applied, compared and evaluated by completely and partially automated gating. A subspace clustering ProClus also implemented in this thesis. The performance of ProClus in flow cytometry is not well, but it is still a useful algorithm to detect noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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