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A Data-Driven Exploration of Hypotheses on Disease Dynamics

  • Marcos L. P. BuenoEmail author
  • Arjen Hommersom
  • Peter J. F. Lucas
  • Joost Janzing
Conference paper
  • 757 Downloads
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11526)

Abstract

Unsupervised learning is often used to obtain insight into the underlying structure of medical data. In this paper, we show that unsupervised methods, in particular hidden Markov models, can go beyond this by guiding the generation of clinical outcome measures and hypotheses, which play a crucial role in medical research. The usage of the data-driven approach facilitates selecting which hypotheses to further investigate. We demonstrate this by using clinical trial data for psychotic depression treatment as a case study. The discovered latent structure and proposed outcome are shown to provide new insight into the heterogeneity of psychotic depression in terms of predictive symptoms.

Keywords

Machine learning Psychiatry Depression Latent variable Hidden Markov model Unsupervised learning Outcome measure 

Notes

Acknowledgments

This work was partially funded by project “NORTE-01-0145-FEDER-000016” (NanoSTIMA). NanoSTIMA is financed by the North Portugal Regional Operational Programme (NORTE2020), under the PORTUGAL 2020 Partnership Agreement, and through the European Regional Development Fund (ERDF).

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Marcos L. P. Bueno
    • 1
    • 2
    Email author
  • Arjen Hommersom
    • 1
    • 3
  • Peter J. F. Lucas
    • 1
    • 4
  • Joost Janzing
    • 5
  1. 1.iCISRadboud University NijmegenNijmegenThe Netherlands
  2. 2.Department of Computer ScienceFederal University of UberlândiaUberlândiaBrazil
  3. 3.Faculty of Management, Science and TechnologyOpen UniversityHeerlenThe Netherlands
  4. 4.LIACSLeiden UniversityLeidenThe Netherlands
  5. 5.Department of PsychiatryRadboud UMCNijmegenThe Netherlands

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