Title
Discriminative Switching Linear Dynamical Systems applied to Physiological Condition Monitoring.
Abstract
We present a Discriminative Switching Linear Dynamical System (DSLDS) applied to patient monitoring in Intensive Care Units (ICUs). Our approach is based on identifying the state-of-health of a patient given their observed vital signs using a discriminative classifier, and then inferring their underlying physiological values conditioned on this status. The work builds on the Factorial Switching Linear Dynamical System (FSLDS) (Quinn et al., 2009) which has been previously used in a similar setting. The FSLDS is a generative model, whereas the DSLDS is a discriminative model. We demonstrate on two real-world datasets that the DSLDS is able to outperform the FSLDS in most cases of interest, and that an α-mixture of the two models achieves higher performance than either of the two models separately.
Year
Venue
Field
2015
International Conference on Uncertainty in Artificial Intelligence
Linear dynamical system,Pattern recognition,Computer science,Physiological condition,Remote patient monitoring,Factorial,Artificial intelligence,Classifier (linguistics),Intensive care,Discriminative model,Machine learning,Generative model
DocType
Volume
ISBN
Journal
abs/1504.06494
978-0-9966431-0-8
Citations 
PageRank 
References 
1
0.38
8
Authors
2
Name
Order
Citations
PageRank
Konstantinos Georgatzis121.10
Christopher K. I. Williams26807631.16