Results 1 to 10 of about 3,824 (79)

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

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

Optimal Minimax Rate of Smoothing Parameter in Distributed Nonparametric Specification Test

open access: yesAxioms
A model specification test is a statistical procedure used to assess whether a given statistical model accurately represents the underlying data-generating process. The smoothing-based nonparametric specification test is widely used due to its efficiency
Peili Liu   +3 more
doaj   +1 more source

Finite-Sample Diagnostics for Random-Effects Misspecification in Poisson Generalized Linear Mixed Models

open access: yesMathematics
Poisson mixed-effects models are essential for analyzing repeated count data, relying on latent random effects to account for unobserved heterogeneity and longitudinal dependence.
Jairo A. Ángel, Jorge I. Vélez
doaj   +1 more source

Inference on function-valued parameters using a restricted score test. [PDF]

open access: yesJ R Stat Soc Series B Stat Methodol
Hudson A, Carone M, Shojaie A.
europepmc   +1 more source

Home - About - Disclaimer - Privacy