David Madigan (Columbia) Dynamic Logistic Regression and Dynamic Model Averaging for Binary Classification We present a model for dynamic model averaging for binary classification. The model accounts for model uncertainty when parameters are expected to change over time by applying a Markov chain model to the "correct" model and a state space model for the parameters within each model. Parameterization is done in terms of forgetting and approximation of the marginal likelihood is computed via Laplace Approximation. We evaluate the method using simulated data and present an application to laparoscopic surgery in children. (with Tyler McCormick, Adrian Raftery, and Randall Burd)