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A pitfall for machine learning methods aiming to predict across cell types

delete2020-11-19
delete23
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OA
AI
J
Jacob Schreiber
R
Ritambhara Singh
J
Jeffrey A. Bilmes
W
William Stafford Noble *
DOI:10.1186/s13059-020-02177-ydelete
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摘要

摘要

En 中文
Machine learning models that predict genomic activity are most useful when they make accurate predictions across cell types. Here, we show that when the training and test sets contain the same genomic loci, the resulting model may falsely appear to perform well by effectively memorizing the average activity associated with each locus across the training cell types. We demonstrate this phenomenon in the context of predicting gene expression and chromatin domain boundaries, and we suggest methods to diagnose and avoid the pitfall. We anticipate that, as more data becomes available, future projects will increasingly risk suffering from this issue.
Keyword:
Machine learning
Epigenomics
Genomics
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期刊

G
Genome Biology
IF:
9.4
论文数:
6.4K
被引数:
7.3W

机构

U
University of Washington
学者数:
8.0W
论文数: 7.0W
被引数: 12.5W
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