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SUMMARY:Regret-regression for optimal dynamic treatment regimes - Robin He
 nderson\, School of Mathematics and Statistics\, University of Newcastle
DTSTART:20100223T143000Z
DTEND:20100223T153000Z
UID:TALK21727@talks.cam.ac.uk
CONTACT:Michael Sweeting
DESCRIPTION:We consider the problem of deriving optimal dynamic treatment 
 regimes from observational data. This is becoming an ever more topical iss
 ue given the increasing amount of longitudinal data which is routinely col
 lected. Model building\, checking and comparison have however had little o
 r no attention so far in this literature. Motivated by an application on o
 ptimal dosage of anticoagulants\, we propose a modelling and estimation st
 rategy which incorporates the regret functions of Murphy (2003) into a reg
 ression model for observed responses. Estimation is quick and diagnostics 
 are available\, meaning a variety of candidate models can be compared.
LOCATION:Large Seminar Room\, 1st Floor\, Institute of Public Health\, Uni
 versity Forvie Site\, Robinson Way\, Cambridge
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