REPORT le:rr07-02/IDIAP Dynamical Dirichlet Mixture Model Chen, Le Barber, David Odobez, Jean-Marc EXTERNAL https://publications.idiap.ch/attachments/reports/2007/le-idiap-rr-07-02.pdf PUBLIC Idiap-RR-02-2007 2007 IDIAP In this report, we propose a statistical model to deal with the discrete-distribution data varying over time. The proposed model -- HMM+DM -- extends the Dirichlet mixture model to the dynamic case: Hidden Markov Model with Dirichlet mixture output. Both the inference and parameter estimation procedures are proposed. Experiments on the generated data verify the proposed algorithms. Finally, we discuss the potential applications of the current model.