Machine Learning for Health Informatics pp 319-336

Part of the Lecture Notes in Computer Science book series (LNCS, volume 9605)

Network-Guided Biomarker Discovery

Chapter

Abstract

Identifying measurable genetic indicators (or biomarkers) of a specific condition of a biological system is a key element of precision medicine. Indeed it allows to tailor diagnostic, prognostic and treatment choice to individual characteristics of a patient. In machine learning terms, biomarker discovery can be framed as a feature selection problem on whole-genome data sets. However, classical feature selection methods are usually underpowered to process these data sets, which contain orders of magnitude more features than samples. This can be addressed by making the assumption that genetic features that are linked on a biological network are more likely to work jointly towards explaining the phenotype of interest. We review here three families of methods for feature selection that integrate prior knowledge in the form of networks.

Keywords

Biological networks Structured sparsity Feature selection Biomarker discovery 

Copyright information

© Springer International Publishing AG 2016

Authors and Affiliations

  1. 1.CBIO-Centre for Computational BiologyMINES ParisTech, PSL-Research UniversityFontainebleauFrance
  2. 2.Institut CurieParis Cedex 05France
  3. 3.INSERM, U900Paris Cedex 05France

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