Results 71 to 80 of about 983,706 (222)

Non-Parametric Estimation of Spot Covariance Matrix with High-Frequency Data

open access: yes, 2019
Estimating spot covariance is an important issue to study, especially with the increasing availability of high-frequency financial data. We study the estimation of spot covariance using a kernel method for high-frequency data.
Mustafayeva, Konul, Wang, Weining
core  

Small area estimation in the case of nonesponse

open access: yesLietuvos Matematikos Rinkinys, 2009
In this paper the effect of model and nonresponseadjustment on different types of estimators for the totals of small area domains is examined. The empirical results are based on Monte Carlo simulations with repeated samples drawn from a finite population
Vilma Nekrašaitė-Liegė
doaj   +1 more source

The Empirical Saddlepoint Estimator

open access: yes, 2018
We define a moment-based estimator that maximizes the empirical saddlepoint (ESP) approximation of the distribution of solutions to empirical moment conditions. We call it the ESP estimator.
Holcblat, Benjamin, Sowell, Fallaw
core  

A TIME-OPTIMAL ALGORITHM FOR THE ESTIMATION OF CONTACT DISTRIBUTION FUNCTIONS OF RANDOM SETS

open access: yesImage Analysis and Stereology, 2011
This paper presents a linear-time and therefore time-optimal algorithm for the estimation of distance distribution functions and contact distribution functions of random sets.
Johannes Mayer
doaj   +1 more source

Distribution Theory of the Least Squares Averaging Estimator

open access: yes, 2013
This paper derives the limiting distributions of least squares averaging estimators for linear regression models in a local asymptotic framework. We show that the averaging estimators with fixed weights are asymptotically normal and then develop a plug ...
Chu-An Liu
semanticscholar   +1 more source

SolidPAC is an interactive battery-on-demand energy density estimator for solid-state batteries

open access: yesCell Reports Physical Science, 2022
Summary: Solid-state batteries hold the promise to be highly impactful next-generation technologies for high-energy and -power-density rechargeable battery applications.
Marm Dixit   +6 more
doaj  

ON THE ESTIMATION OF DISTANCE DISTRIBUTION FUNCTIONS FOR POINT PROCESSES AND RANDOM SETS

open access: yesImage Analysis and Stereology, 2011
This paper discusses various estimators for the nearest neighbour distance distribution function D of a stationary point process and for the quadratic contact distribution function Hq of a stationary random closed set.
Dietrich Stoyan   +3 more
doaj   +1 more source

Reconstruction of the execution times dynamics of real-time tasks by fuzzy digital filtering

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2014
Real-time systems (RTS) process their activities through tasks which in turn consist of a set of instances, each one of this real-time task (RTT) have six temporary  constraints:  arrival  time,  start  time,  execution  time,  end  time,  over time and
Jorge Salvador Valdez Martínez   +3 more
doaj   +1 more source

Black box systems identification with estimation

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2014
In  a  black  box  system  the  internal  parameters  are  not  observables  between  input-output relationships. An approach is made knowing as estimation, based on the second probability moment. These results with a functional error and the innovation
María Teresa Zagceta Álvarez   +2 more
doaj   +1 more source

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