UNIVARIATE VS. BIVARIATE SMOOTHING IN FREQUENCY ESTIMATION EQUATING
نویسندگان
چکیده
منابع مشابه
Reducing Variance in Univariate Smoothing
A variance reduction technique in nonparametric smoothing is proposed: at each point of estimation, form a linear combination of a preliminary estimator evaluated at nearby points with the coefficients specified so that the asymptotic bias remains unchanged. The nearby points are chosen to maximize the variance reduction. We study in detail the case of univariate local linear regression. While ...
متن کاملAsymmetric Univariate and Bivariate Laplace and Generalized Laplace Distributions
Alternative specifications of univariate asymmetric Laplace models are described and investigated. A more general mixture model is then introduced. Bivariate extensions of these models are discussed in some detail, with particular emphasis on associated parameter estimation strategies. Multivariate versions of the models are briefly introduced.
متن کاملBivariate interpolation based on univariate subdivision schemes
The paper presents a bivariate subdivision scheme interpolating data consisting of univariate functions along equidistant parallel lines by repeated refinements. This method can be applied to the construction of a surface passing through a given set of parametric curves. Following the methodology of polysplines and tension surfaces, we define a local interpolator of four consecutive univariate ...
متن کاملMoser-based algorithms over Univariate and Bivariate (Differential) Fields
Let K be a commutative field of characteristic zero equipped with a derivation δ, that is a map δ : K → K satisfying δ(f + g) = δf + δg and δ(fg) = δ(f)g + fδ(g) for all f, g ∈ K. We denote by C its field of constants, V a K-vector space of dimension n, and A an element in Kn×n. Set ∆ = δ − A, then ∆ is a δdifferential operator acting on V , that is, a C-linear endomorphism of V satisfying the ...
متن کاملBehavior Preserving Extension of Univariate and Bivariate Functions
Given function values on a domain D0 , possibly with noise, we examine the possibility of extending the function to a larger domain D,D0 ⊂ D. In addition to smoothness at the boundary of D0 , the extension to D \ D0 should also inherit behavioral trends of the function on D0 , such as growth and decay or even oscillations. The approach chosen here is based upon the framework of linear models, u...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ETS Research Report Series
سال: 1987
ISSN: 2330-8516
DOI: 10.1002/j.2330-8516.1987.tb00240.x