muSignAl: An algorithm to search for multiple omic signatures with similar predictive performance

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Abstract

Multidimensional omic datasets often have correlated features leading to the possibility of discovering multiple biological signatures with similar predictive performance for a phenotype. However, their exploration is limited by low sample size and the exponential nature of the combinatorial search leading to high computational cost. To address these issues, we have developed an algorithm muSignAl (multiple signature algorithm) which selects multiple signatures with similar predictive performance while systematically bypassing the requirement of exploring all the combinations of features. We demonstrated the workflow of this algorithm with an example of proteomics dataset. muSignAl is applicable in various bioinformatics driven explorations, such as understanding the relationship between multiple biological feature sets and phenotypes, and discovery and development of biomarker panels while providing the opportunity of optimising their development cost with the help of equally good multiple signatures. Source code of muSignAl is freely available at https://github.com/ShuklaLab/muSignAl.
Original languageEnglish
JournalProteomics
Early online date8 Sep 2022
DOIs
Publication statusE-pub ahead of print - 8 Sep 2022

Keywords

  • Bioinformatics
  • Algorithm
  • Biomarkers
  • Proteomics
  • Olink

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