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A multiple-sample semiparametric density ratio model, which is equivalent to a generalized logistic regression model … nonparametric.The combined data from all the samples are used in the semiparametric large sample problem of estimating each … class of semiparametric models to time series. The method combines information from several time series and estimates their …
Persistent link: https://www.econbiz.de/10009450972
There are two topics in this dissertation. The first topic is 'Smoothing Parameter Selection in Nonparametric Generalized Linear Models via Sixth-order Laplace Approximation' and the second topic is 'Smoothing Spline-based Score Tests for Proportional Hazards Models'.We present a new approach...
Persistent link: https://www.econbiz.de/10009431282
In many scientific studies, the response variable bears a generalized nonlinear regression relationship with a certain covariate of interest, which may, however, be confounded by other covariates with unknown functional form. We propose a new class of models, the partly parametric generalized...
Persistent link: https://www.econbiz.de/10009466085
Zero-inflated data abound in ecological studies as well as in other scientific and quantitative fields. Nonparametric regression with zero-inflated response may be studied via the zero-inflated generalized additive model (ZIGAM). ZIGAM assumes that the conditional distribution of the response...
Persistent link: https://www.econbiz.de/10009466022
We consider Semiparametric regression for periodic longitudinal data. Parametric fixed effects are used to model the …
Persistent link: https://www.econbiz.de/10009477134
Off-farm employment has been an integral part of the emerging structure of production agriculture in the South. Government farm program payments, farm structure, and strong non-farm economy have important impact on labor allocation, farm and non-farm labor, decision of farm operators. The...
Persistent link: https://www.econbiz.de/10009443200
semiparametric varying coefficient periodic model which is suitable to studyperiodic patterns. This model has ample applications in …
Persistent link: https://www.econbiz.de/10009464826
restriction, the semiparametric information bound is zero, even when the homoskedastic error term is parametrically specified …
Persistent link: https://www.econbiz.de/10009475499
Semi-parametric and nonparametric modeling and inference have been widely studied duringthe last two decades. In this ….Firstly, we develop a semi-parametric additivity test for nonparametric multi-dimensionalmodel. The test statistic can test two or …
Persistent link: https://www.econbiz.de/10009477898
simulation, and extreme value theory. A new semiparametric model based on density ratio is developed in Chapter three. By … the VaR. We ran a monte carlo simulation to compare the semiparametric model and the traditional VaR models under many … different scenarios. In several cases, the semiparametric model performs quite satisfactorily. Furthermore, when applied to real …
Persistent link: https://www.econbiz.de/10009450634