A probabilistic framework for predicting disease dynamics: A case study of psychotic depression

Marcos L.P. Bueno*, Arjen Hommersom, Peter J.F. Lucas, Joost Janzing

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Unsupervised learning is often used to obtain insight into the underlying structure of medical data, but it is not always clear how to use such structure in an effective way. In this paper, we propose a probabilistic framework for predicting disease dynamics guided by latent states. The framework is based on hidden Markov models and aims to facilitate the selection of hypotheses that might yield insight into the dynamics. We demonstrate this by using clinical trial data for psychotic depression treatment as a case study. The discovered latent structure and proposed outcome are then validated using standard depression criteria, and are shown to provide new insight into the heterogeneity of psychotic depression in terms of predictive symptoms for different interventions.
Original languageEnglish
Article number103232
Number of pages12
JournalJournal of Biomedical Informatics
Volume95
DOIs
Publication statusPublished - Jul 2019

Keywords

  • Machine learning
  • Psychiatry
  • Depression
  • Temporal data
  • Latent variables
  • Hidden Markov model

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