248 research outputs found
Fast adaptive penalized splines
No full textKrivobokova T, Crainiceanu CM, Kauermann G. Fast adaptive penalized splines. JOURNAL OF COMPUTATIONAL AND GRAPHICAL STATISTICS. 2008;17(1):1-20.This article proposes a numerically simple method for locally adaptive smoothing. The heterogeneous regression function is modeled as a penalized spline with a varying smoothing parameter modeled as another penalized spline. This is formulated as a hierarchical mixed model, with spline coefficients following zero mean normal distribution with a smooth variance structure. The major contribution of this article is to use the Laplace approximation of the marginal likelihood for estimation. This method is numerically simple and fast. The idea is extended to spatial and non-normal response smoothing
Generalized Semiparametric Regression Models with Nonparametric Effects of Covariates Measured with Error
No full textGeneralized Semiparametric Regression Models with Nonparametric Effects of Covariates Measured with Error
No full textMillennial Scale Sea Level Curve Estimation
No full text26 pages, 1 article*Millennial Scale Sea Level Curve Estimation* (Staudenmayer, John; Balco, Greg; Gehrels, W. Roland; Altman, Naomi; Crainiceanu, Ciprian; Qui, Jing) 26 page
MSJ900942_Supplementary_table_3 – Supplemental material for Association of body mass index with longitudinal rates of retinal atrophy in multiple sclerosis
No full textSupplemental material, MSJ900942_Supplementary_table_3 for Association of body mass index with longitudinal rates of retinal atrophy in multiple sclerosis by Angeliki G Filippatou, Jeffrey Lambe, Elias S Sotirchos, Kathryn C Fitzgerald, Andrew Aston, Olwen C Murphy, Nicole Pellegrini, Nicholas Fioravante, Hunter Risher, Esther Ogbuokiri, Ohemaa Kwakyi, Brandon Toliver, Simidele Davis, Nicholas Luciano, Ciprian Crainiceanu, Jerry L Prince, Ellen M Mowry, Peter A Calabresi and Shiv Saidha in Multiple Sclerosis Journal</p
MSJ826364_supplementary_results – Supplemental material for Effect of disease-modifying therapies on subcortical gray matter atrophy in multiple sclerosis
No full textSupplemental material, MSJ826364_supplementary_results for Effect of disease-modifying therapies on subcortical gray matter atrophy in multiple sclerosis by Elias S Sotirchos, Natalia Gonzalez-Caldito, Blake E Dewey, Kathryn C Fitzgerald, Jeffrey Glaister, Angeliki Filippatou, Esther Ogbuokiri, Sydney Feldman, Ohemaa Kwakyi, Hunter Risher, Ciprian Crainiceanu, Dzung L Pham, Peter C Van Zijl, Ellen M Mowry, Daniel S Reich, Jerry L Prince, Peter A Calabresi and Shiv Saidha in Multiple Sclerosis Journal</p
Bayesian Functional Data Analysis Using WinBUGS
No full textWe provide user friendly software for Bayesian analysis of functional data models using \pkg{WinBUGS}~1.4. The excellent properties of Bayesian analysis in this context are due to: (1) dimensionality reduction, which leads to low dimensional projection bases; (2) mixed model representation of functional models, which provides a modular approach to model extension; and (3) orthogonality of the principal component bases, which contributes to excellent chain convergence and mixing properties. Our paper provides one more, essential, reason for using Bayesian analysis for functional models: the existence of software.
MSJ900942_Supplementary_table_2 – Supplemental material for Association of body mass index with longitudinal rates of retinal atrophy in multiple sclerosis
No full textSupplemental material, MSJ900942_Supplementary_table_2 for Association of body mass index with longitudinal rates of retinal atrophy in multiple sclerosis by Angeliki G Filippatou, Jeffrey Lambe, Elias S Sotirchos, Kathryn C Fitzgerald, Andrew Aston, Olwen C Murphy, Nicole Pellegrini, Nicholas Fioravante, Hunter Risher, Esther Ogbuokiri, Ohemaa Kwakyi, Brandon Toliver, Simidele Davis, Nicholas Luciano, Ciprian Crainiceanu, Jerry L Prince, Ellen M Mowry, Peter A Calabresi and Shiv Saidha in Multiple Sclerosis Journal</p
MSJ900942_Supplementary_table_1 – Supplemental material for Association of body mass index with longitudinal rates of retinal atrophy in multiple sclerosis
No full textSupplemental material, MSJ900942_Supplementary_table_1 for Association of body mass index with longitudinal rates of retinal atrophy in multiple sclerosis by Angeliki G Filippatou, Jeffrey Lambe, Elias S Sotirchos, Kathryn C Fitzgerald, Andrew Aston, Olwen C Murphy, Nicole Pellegrini, Nicholas Fioravante, Hunter Risher, Esther Ogbuokiri, Ohemaa Kwakyi, Brandon Toliver, Simidele Davis, Nicholas Luciano, Ciprian Crainiceanu, Jerry L Prince, Ellen M Mowry, Peter A Calabresi and Shiv Saidha in Multiple Sclerosis Journal</p
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