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BDI Seminar: Hospital patient time series data: Statistical models for associations and decision making
In-patient hospital data presents unique challenges for time series analysis, including the sparsity and irregularity of observations for each patient and the heterogeneous patient responses to interventions. In this talk, I will present a multi-output Gaussian process regression model for patient time series data that captures the state of a patient and uncertainty in this state across four vital signs and 20 lab tests in a patient-specific way. We build on top of this model a reinforcement learning approach to assist doctors to wean patients from a mechanical ventilator. Finally, I show how prior work with time series associations may be used with these data to identify patients with genetically-mediated responses to specific interventions. I will conclude with directions for future work.
Date:
12 June 2018, 16:00
Venue:
Big Data Institute (NDM), Old Road Campus OX3 7LF
Venue Details:
Seminar Room 0
Speaker:
Professor Barbara Engelhardt (Department of Computer Science, Center for Statistics and Machine Learning, Princeton University)
Organising department:
Big Data Institute (NDM)
Part of:
BDI seminars
Booking required?:
Not required
Audience:
Members of the University only
Editor:
Hannah Freeman
