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Machine learning improves SNP microarray performance in challenged samples

delete2026-01-01
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PRE
AI
A
Austin Chiao *
B
Benjamin Crysup
J
Jonathan L. King
M
Michael D. Coble
A
August E. Woerner
DOI:10.1093/bioadv/vbag086delete
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摘要

摘要

En 中文
SNP微阵列提供了一种成本效益高的基因分型方法,应用于各种科学学科。样本成本从几十到几百美元不等,存储成本相对合理,分析方法易于扩展到大样本量。然而,微阵列设计用于高质量样本,而非低量DNA输入。为应对此问题,处理挑战性样本时必须正确考虑不确定性。当数据不确定时,与其调用明确的基因型,不如以概率方式表示。这种方法既能无缝对接直接考虑可能性的工具,又能通过移除不确定的基因型调用,与期望硬调用的工具保持兼容。本研究使用了多种机器学习算法,以估算从Illumina Omni5-4微阵列数据生成的基因型和基因型可能性,并比较了结果。虽然神经网络和XGBoost均表现良好,但XGBoost似乎在Omni5-4芯片生成的样本类型中具有更好的泛化能力(不同技术间的泛化有待进一步检验)。此外,它还能更直接地生成基因型质量估计(而非评分),这一功能在微阵列分析中一直缺失。
Keyword:
GENOME
ASSOCIATION

期刊

B
Bioinformatics Advances
IF:
2.8
论文数:
131
被引数:
0

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