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Recent advances for a class of new multivariate zero inflated/truncated/adjusted Poisson and related models
澳门新葡8455最新网站:2014年05月21日 00:00 点击数:

报告人:田国良

报告地点:澳门新葡8455最新网站104室

报告澳门新葡8455最新网站:2014年06月04日星期三10:30-11:30

邀请人:

报告摘要:

Count data with adjusted zeros and without zero-category arise quite frequently in studies of medicine, epidemiology, public health, biology, agriculture and other disciplines such as sociology, psychology, ecology and engineering. In this talk, I will introduce a class of newly developed multivariate zero inflated / truncated / adjusted Poisson (MZIP, MZTP, MZAP) and related distributions (e.g., Type I, II, III and IV MZIP, MZTP, MZAP distributions) by the author and his postgraduates/collaborators. First, I introduce the Type I MZIP distribution to model correlated multivariate count data with extra zeros. The distributional properties and efficient statistical methods are developed. Next, I will briefly introduce Type I MZAP models (including Type I MZIP and MZTP as special cases) by accounting for both inflation and deflation at zero. Third, to address the issues of over-dispersion and under-dispersion, other developments are highlighted by replacing Poisson with negative-binomial and generalized Poisson distributions.

主讲人概况:

Guo-Liang Tian, PHD , Associate Professor of Statistics, Dept of Statistics and Actuarial Science, The University of Hong Kong

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