Results 1 to 10 of about 66,189 (248)

Change detection in non-stationary Hawkes processes through sequential testing [PDF]

open access: yesITM Web of Conferences, 2021
Detecting changes in an incoming data flow is immensely crucial for understanding inherent dependencies, formulating new or adapting existing policies, and anticipating further changes. Distinct modeling constructs have triggered varied ways of detecting
Bhaduri Moinak   +2 more
doaj   +1 more source

Robust Test Statistics Based on Restricted Minimum Rényi’s Pseudodistance Estimators

open access: yesEntropy, 2022
The Rao’s score, Wald and likelihood ratio tests are the most common procedures for testing hypotheses in parametric models. None of the three test statistics is uniformly superior to the other two in relation with the power function, and moreover, they ...
María Jaenada   +2 more
doaj   +1 more source

Model Uncertainty and Selection of Risk Models for Left-Truncated and Right-Censored Loss Data

open access: yesRisks, 2023
Insurance loss data are usually in the form of left-truncation and right-censoring due to deductibles and policy limits, respectively. This paper investigates the model uncertainty and selection procedure when various parametric models are constructed to
Qian Zhao, Sahadeb Upretee, Daoping Yu
doaj   +1 more source

Сomparative Analysis of Polynomial Maximization and Maximum Likelihood Estimates for Data with Exponential Power Distribution

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2020
The work is devoted to the estimate accuracy comparative analysis of the experimental data parameters with exponential power distribution (EPD) using the classical Maximum Likelihood Estimation (MLE) and the original Polynomial Maximization Method (PMM).
S. V. Zabolotnii   +3 more
doaj   +1 more source

Multiple Outlier Detection Tests for Parametric Models [PDF]

open access: yesMathematics, 2019
We propose a simple multiple outlier identification method for parametric location-scale and shape-scale models when the number of possible outliers is not specified.
V. Bagdonavičius, Linas Petkevičius
semanticscholar   +1 more source

Model Adequacy Checks for Discrete Choice Dynamic Models [PDF]

open access: yes, 2012
This paper proposes new parametric model adequacy tests for possibly nonlinear and nonstationary time series models with noncontinuous data distribution, which is often the case in applied work.
Kheifets, Igor, Velasco, Carlos
core   +1 more source

A general asymptotic framework for distribution‐free graph‐based two‐sample tests [PDF]

open access: yesJournal of the Royal Statistical Society: Series B (Statistical Methodology), 2015
Testing equality of two multivariate distributions is a classical problem for which many non‐parametric tests have been proposed over the years. Most of the popular two‐sample tests, which are asymptotically distribution free, are based either on ...
B. Bhattacharya
semanticscholar   +1 more source

Residuals and goodness-of-fit tests for stationary marked Gibbs point processes [PDF]

open access: yes, 2010
The inspection of residuals is a fundamental step to investigate the quality of adjustment of a parametric model to data. For spatial point processes, the concept of residuals has been recently proposed by Baddeley et al.
Andersen   +33 more
core   +7 more sources

Theoretical and Empirical Differences between Diagonal and Full BEKK for Risk Management

open access: yesEnergies, 2018
The purpose of the paper is to explore the relative biases in the estimation of the Full BEKK model as compared with the Diagonal BEKK model, which is used as a theoretical and empirical benchmark.
David E. Allen, Michael McAleer
doaj   +1 more source

Nonparametric tests for semiparametric regression models

open access: yesTest (Madrid), 2023
Semiparametric regression models have received considerable attention over the last decades, because of their flexibility and their good finite sample performances. Here we propose an innovative nonparametric test for the linear part of the models, based
Federico Ferraccioli   +2 more
semanticscholar   +1 more source

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