DATE AND TIME: Thursday, March 29, 2001, 4:10 p.m.

        PLACE: 1810 Gilman

        SPEAKER:
        Feifang Hu
        Cornell University and Department of Statistics and Applied Probability National University of Singapore, Singapore

        TITLE:
        Markov Chain Marginal Bootstrap (MCMB)

        ABSTRACT:

        Markov chain marginal bootstrap (MCMB) is a new method for constructing
        confidence intervals or regions for maximum likelihood estimators of certain
        parametric models and for a wide class of M-estimators of linear regression.
        The MCM bootstrap distinguishes itself from the usual bootstrap methods in two
        important aspects:

         (i). it only involves solving one-dimensional equations for parameters of any
        dimension;

         (ii). it  produces a Markov chain rather than a (conditionally) independent
        sequence.

        It is designed to alleviate computational burdens often associated with
        bootstrap in high dimensional problems. The validity of MCMB is established
        through asymptotic analyses and illustrated with empirical studies for linear
        regression and generalized linear models. Some further research topics are also
        discussed.
         
         

        COFFEE: 3:45 p.m., 104 Snedecor