Results 21 to 30 of about 2,482,864 (253)

A Deconvolutional Deblurring Algorithm Based on Short- and Long-Exposure Images

open access: yesSensors, 2022
An iterative image restoration algorithm, directed at the image deblurring problem and based on the concept of long- and short-exposure deblurring, was proposed under the image deconvolution framework by investigating the imaging principle and existing ...
Yang Bai, Zheng Tan, Qunbo Lv, Min Huang
doaj   +1 more source

Nonparametric Inference in Mixture Cure Models

open access: yesProceedings, 2018
A completely nonparametric method for the estimation of mixture cure models is proposed. Nonparametric estimators for the cure probability (incidence) and for the survival function of the uncured population (latency) are introduced.
Ana López-Cheda   +3 more
doaj   +1 more source

Wind Power Ultra-short-term Interval Prediction Based on an Adaptive Kernel Density Estimation Algorithm

open access: yesXiandai dianli
Aiming at the issue of insufficient local adaptability in kernel density estimation algorithm for wind power interval prediction, we propose an adaptive kernel density estimation algorithm for wind power ultra-short-term interval prediction.
Hengkuan GUO   +4 more
doaj   +1 more source

Rating Crop Insurance Policies with Efficient Nonparametric Estimators That Admit Mixed Data Types

open access: yesJournal of Agricultural and Resource Economics, 2006
The identification of improved methods for characterizing crop yield densities has experienced a recent surge in activity due in part to the central role played by crop insurance in the Agricultural Risk Protection Act of 2000 (estimates of yield ...
Jeffrey S. Racine, Alan P. Ker
doaj   +1 more source

Interval Estimation of Value-at-Risk Based on Nonparametric Models

open access: yesEconometrics, 2018
Value-at-Risk (VaR) has become the most important benchmark for measuring risk in portfolios of different types of financial instruments. However, as reported by many authors, estimating VaR is subject to a high level of uncertainty.
Hussein Khraibani   +2 more
doaj   +1 more source

Bivariate box plots based on quantile regression curves

open access: yesDependence Modeling, 2020
In this paper, we propose a procedure to build bivariate box plots (BBP). We first obtain the theoretical BBP for a random vector (X, Y). They are based on the univariate box plot of X and the conditional quantile curves of Y|X. They can be computed from
Navarro Jorge
doaj   +1 more source

A forward-constrained regression algorithm for sparse kernel density estimation [PDF]

open access: yes, 2008
Using the classical Parzen window (PW) estimate as the target function, the sparse kernel density estimator is constructed in a forward-constrained regression (FCR) manner. The proposed algorithm selects significant kernels one at a time, while the leave-
Harris, C. J.   +8 more
core   +1 more source

Unique circulating miRNAome signatures captured with distinct molecular states in Lynch syndrome and sporadic colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Circulating microRNA profiles distinguish nonmalignant Lynch syndrome from cancer‐associated Lynch syndrome, sporadic colorectal cancer, and healthy controls. Age‐stratified analysis reveals disease‐specific regulatory states, and a six‐miRNA panel shows concordant separation in an independent colorectal tissue cohort.
Ramadhani Salum Chambuso   +5 more
wiley   +1 more source

Maximum kernel likelihood estimation [PDF]

open access: yes, 2008
We introduce an estimator for the population mean based on maximizing likelihoods formed by parameterizing a kernel density estimate. Due to these origins, we have dubbed the estimator the maximum kernel likelihood estimate (mkle). A speedy computational
Jaki, Thomas, West, R. Webster
core   +3 more sources

Transformation kernel density estimation of actuarial loss functions [PDF]

open access: yes, 2013
[cat] Es presenta un estimador nucli transformat que és adequat per a distribucions de cua pesada. Utilitzant una transformació basada en la distribució de probabilitat Beta l’elecció del paràmetre de finestra és molt directa. Es presenta una aplicació a
Guillén, Montserrat   +2 more
core   +6 more sources

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