Browsing 01 Mathematical Sciences by Author "Ormerod John"

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Browsing 01 Mathematical Sciences by Author "Ormerod John"

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  • Parsimonious classification via generalised linear mixed models 
    Kauermann G.; Ormerod John; Wand Matt (Springer New York LLC, 2010)
    We devise a classification algorithm based on generalized linear mixed model (GLMM) technology. The algorithm incorporates spline smoothing, additive model-type structures and model selection. For reasons of speed we employ ...
  • Penalised spline support vector classifiers: computational issues 
    Ormerod John; Wand Matt; Koch Inge (Physica-Verlag Gmbh & Co, 2008)
    We study computational issues for support vector classification with penalised spline kernels. We show that, compared with traditional kernels, computational times can be drastically reduced in large problems making such ...
  • Penalized wavelets: Embedding wavelets into semiparametric regression 
    Wand Matthew; Ormerod John (Institute of Mathematical Statistics, 2011)
    We introduce the concept of penalized wavelets to facilitate seamless embedding of wavelets into semiparametric regression models. In particular, we show that penalized wavelets are analogous to penalized splines; the ...
  • Theory of Gaussian variational approximation for a Poisson mixed model 
    Hall Peter; Ormerod John; Wand Matthew (Academia Sinica, 2011)
    Likelihood-based inference for the parameters of generalized linear mixed models is hindered by the presence of intractable integrals. Gaussian variational approximation provides a fast and effective means of approximate ...