title: Comparison of two temporal abstraction procedures: a case study in prediction from monitoring data.
abstract: This paper presents an empirical comparison of two temporal abstraction procedures, that were applied to derive predictive features for a prediction problem in intensive care medicine. The first procedure employs knowledge from practitioners to derive qualitative patterns of state changes; the second procedure searches through a large number of data summaries to discover those that have predictive value. The derived features were used to predict whether postsurgical patients would need mechanical ventilation longer then 24h. The data-driven temporal abstraction procedure was found to provide more informative predictors, resulting in better predictions.
authors.affiliation: Dept. of Medical Informatics, Academic Medical Center, University of Amsterdam, The Netherlands. m,verduijn@amc.uva.nl
authors.forename: Marion
authors.initials: M
authors.lastname: Verduijn
authors.forename: Arianna
authors.initials: A
authors.lastname: Dagliati
authors.forename: Lucia
authors.initials: L
authors.lastname: Sacchi
authors.forename: Niels
authors.initials: N
authors.lastname: Peek
authors.forename: Riccardo
authors.initials: R
authors.lastname: Bellazzi
authors.forename: Evert
authors.initials: E
authors.lastname: de Jonge
authors.forename: Bas
authors.initials: B
authors.lastname: de Mol
mesh_terms: D006348:Cardiac Surgical Procedures / Q000706:statistics & numerical data; D003422:Critical Care; D003663:Decision Trees; D006801:Humans; D016247:Information Storage and Retrieval / Q000379:methods*; D051188:Knowledge Bases; D008991:Monitoring, Physiologic / Q000706:statistics & numerical data*; D011379:Prognosis; D012372:ROC Curve; D013995:Time