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IMPERIAL COLLEGE STATISTICS SECTION SEMINARS This week's seminar will be held on Friday 26th November at 2pm in Room 140 of the Huxley Building on the South Kensington campus. All are welcome. Cells, points and lines Merrilee Hurn (Bath University) One issue common both to Bayesian image analysis and to a Bayesian treatment of mixture distributions is the choice of an appropriate estimator. Generally there are only a few loss functions for which the corresponding estimator is known. However it is possible to use a two step estimation/optimisation approach for a much wider class of loss functions in these cases, and this will be illustrated using a mixture of regressions model. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%