High-dimensional integrative copula discriminant analysis for multiomics data

Yong He, Hao Chen, Hao Sun, Jiadong Ji, Yufeng Shi, Xinsheng Zhang, Lei Liu

Research output: Contribution to journalArticlepeer-review

Abstract

Multiomics or integrative omics data have been increasingly common in biomedical studies, holding a promise in better understanding human health and disease. In this article, we propose an integrative copula discrimination analysis classifier in the context of two-class classification, which relaxes the common Gaussian assumption and gains power by borrowing information from multiple omics data types in discriminant analysis. Numerical studies are conducted to assess the finite sample performance of the new classifier. We apply our model to the Religious Orders Study and Memory and Aging Project (ROSMAP) Study, integrating gene expression and DNA methylation data for better prediction.

Original languageEnglish
Pages (from-to)4869-4884
Number of pages16
JournalStatistics in medicine
Volume39
Issue number30
DOIs
StatePublished - Dec 30 2020

Keywords

  • Gaussian copula
  • data mining
  • discriminant analysis
  • integrative analysis
  • machine learning

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