نتایج جستجو برای: kernel percentage

تعداد نتایج: 184225  

ژورنال: پژوهش های ریاضی 2020

The standard kernel density estimator suffers from a boundary bias issue for probability density function of distributions on the positive real line. The Gamma kernel estimators and orthogonal series estimators are two alternatives which are free of boundary bias. In this paper, a simulation study is conducted to compare small-sample performance of the Gamma kernel estimators and the orthog...

A universal approach by Laplace transform to the variational iteration method for fractional derivatives with the nonsingular kernel is presented; in particular, the Caputo-Fabrizio fractional derivative and the Atangana-Baleanu fractional derivative with the non-singular kernel is considered. The analysis elaborated for both non-singular kernel derivatives is shown the necessity of considering...

Journal: :Karadeniz Fen Bilimleri Dergisi 2022

This study was conducted to identify Mincane cv clones with superior physical traits in the Trabzon province, Maçka district, Esiro?lu region between 2014 and 2019. Selection research area based on objective revealed 14 traits. In these selected clones, yield, number of nuts per cluster, nut characteristics, kernel weight, shell thickness, percentage, shriveled kernel, cavity, blank split sutur...

Journal: :Physics in medicine and biology 2010
J L Ducote S Molloi

X-ray scatter is a major cause of nonlinearity in densitometry measurements using digital mammography. Previous scatter correction techniques have primarily used a single scatter point spread function to estimate x-ray scatter. In this study, a new algorithm to correct x-ray scatter based on image convolution was implemented using a spatially variant scatter point spread function which is energ...

Journal: :National health statistics reports 2011
Cynthia L Ogden Yan Li David S Freedman Lori G Borrud Katherine M Flegal

BACKGROUND The high prevalence of obesity (defined by body mass index) among children and adolescents in the United States and elsewhere has prompted increased attention to body fat in childhood and adolescence. OBJECTIVE This report provides smoothed estimates of major percentiles of percentage body fat for boys and girls aged 8-19 years in the United States. METHODS Percentage body fat wa...

A simple method for solving Prandtl's integro-differential equation is proposed based on a new reproducing kernel space. Using a transformation and modifying the traditional reproducing kernel method, the singular term is removed and the analytical representation of the exact solution is obtained in the form of series in the new reproducing kernel space. Compared with known investigations, its ...

2007
Chris Tofallis

Percentage error (relative to the observed value) is often felt to be more meaningful than the absolute error in isolation. The mean absolute percentage error (MAPE) is widely used in forecasting as a basis of comparison, and regression models can be fitted which minimize this criterion. Unfortunately, no formula exists for the coefficients, and models for a given data set may not be unique. We...

In this paper, we consider convex quadratic semidefinite optimization problems and provide a primal-dual Interior Point Method (IPM) based on a new kernel function with a trigonometric barrier term. Iteration complexity of the algorithm is analyzed using some easy to check and mild conditions. Although our proposed kernel function is neither a Self-Regular (SR) fun...

Journal: :Journal of agricultural and food chemistry 2006
James Patindol Amber Flowers Meng-I Kuo Ya-Jane Wang David Gealy

Sixteen red rice accessions from the southern United States were studied for their physical, milling, pasting, and thermal properties, chemical composition, and starch fine structure relative to cultivated medium- and long-grain rice varieties. All red rice samples were medium-grain, but their physicochemical properties were different from those of Bengal, a cultivated medium-grain rice. Their ...

Journal: :International perspectives on sexual and reproductive health 2015
Martha Priedeman Skiles Marc Cunningham Andrew Inglis Becky Wilkes Ben Hatch Ariella Bock Janine Barden-O'Fallon

CONTEXT Previous studies have identified positive relationships between geographic proximity to family planning services and contraceptive use, but have not accounted for the effect of contraceptive supply reliability or the diminishing influence of facility access with increasing distance. METHODS Kernel density estimation was used to geographically link Malawi women's use of injectable cont...

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