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Adaptive weighting for flexible estimation in nonparametric regression models.
Nosedal-Sanchez, Alvaro - 2011
We propose a new method to find spatially adaptive smoothing splines. This new method breaks down the interval [0, 1] into p disjoint sub-intervals. Then we define p functional components in [0, 1], which have two importantfeatures. First, the purpose of each of these p components is to estimate...
Persistent link: https://www.econbiz.de/10009429662
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Semiparametric functional data analysis for longitudinal/clustered data: theory and application
Wang, Naisyin (contributor) - 2004
Semiparametric models play important roles in the field of biological statistics. In this dissertation, two types of semiparametic models are to be studied. One is the partially linear model, where the parametric part is a linear function. We are to investigate the two common estimation methods...
Persistent link: https://www.econbiz.de/10009465181
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Spline-based sieve semiparametric generalized estimating equation for panel count data
Hua, Lei - 2010
In this thesis, we propose to analyze panel count data using a spline-basedsieve generalized estimating equation method with a semiparametric proportional mean model E(N(t)|Z) = Λ0(t) eβT0Z. The natural log of the baseline mean function, logΛ0(t), is approximated by a monotone cubic B-spline...
Persistent link: https://www.econbiz.de/10009466051
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Confidence bands in quantile regression and generalized dynamic semiparametric factor models
Song, Song - 2010
In vielen Anwendungen ist es notwendig, die stochastische Schwankungen der maximalen Abweichungen der nichtparametrischen Schätzer von Quantil zu wissen, zB um die verschiedene parametrische Modelle zu überprüfen. Einheitliche Konfidenzbänder sind daher für nichtparametrische Quantil...
Persistent link: https://www.econbiz.de/10009467050
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Flexible Estimation of Differences in Treatment-Specific Recurrent Event Means in the Presence of a Terminating Event
Pan, Qing; Schaubel, Douglas E. - 2009
In this article, we consider the setting where the event of interest can occur repeatedly for the same subject (i.e., a recurrent event; e.g., hospitalization) and may be stopped permanently by a terminating event (e.g., death). Among the different ways to model recurrent/terminal event data,...
Persistent link: https://www.econbiz.de/10009476550
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Optimal Test for Parameter Instability When the Unstable Process and the Error Distribution are Unknown
Lee, Dong Jin - 2008
This paper proposes asymptotically optimal tests for unstable parameter process under the feasible circumstance that the researcher has little information about the unstable parameter process and the error distribution, and suggests conditions under which the knowledge of those processes does...
Persistent link: https://www.econbiz.de/10009430182
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Determinants of the Speed of Adoption of Soil Fertility-Enhancing Technologies in Western Kenya
Odendo, Martins; Obare, Gideon A.; Salasya, Beatrice - 2010
fertilizer, animalmanure and compost using Duration analysis. Results revealed that factors that influencedtiming of the adoption …
Persistent link: https://www.econbiz.de/10009443642
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The increasingly mixed proportional hazard model: An application to socioeconomic status, health shocks, and mortality
Frijters, Paul; Haisken-DeNew, John P.; Shields, Michael A. - 2011
We introduce a duration model that allows for unobserved cumulative individual-specific shocks, which are likely to be … important in explaining variations in duration outcomes, such as length of life and time spent unemployed. The model is also a …-spell duration analysis in economics and the other social sciences. We apply the IMPH model to study the relationships among …
Persistent link: https://www.econbiz.de/10009448432
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The Economics of Nuclear Power
Horst, Ronald L - 2006
We extend economic analysis of the nuclear power industry by developing and employing three tools. They are 1) compilation and unification of operating and accounting data sets for plants and sites, 2) an abstract industry model with major economic agents and features, and 3) a model of nuclear...
Persistent link: https://www.econbiz.de/10009450940