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ANC Workshop: Konstantinos Georgatzis and Duncan Carmichael, Chair: Nigel Goddard

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What
  • ANC Workshop Talk
When Feb 25, 2014
from 11:00 AM to 12:00 PM
Where IF 4.31/4.33
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Konstantinos Georgatzis

Discriminative Switching Linear Dynamical Systems for Physiological Condition Monitoring

We present a Discriminative Switching Linear Dynamical System (DSLDS)  for the application of patient monitoring in Intensive Care Units (ICUs). Accurate identification of artifactual and physiological processes that occur during a patient's stay in an ICU may potentially lead to improved healthcare, better patient outcomes or even lower mortality rates. Our approach is based on identifying the state-of-health of a patient given their observed biosignals 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) which has been previously used in a similar setting. The FSLDS is a fully generative model, whereas the DSLDS can be seen as a hybrid discriminative-generative model.