Results 21 to 30 of about 325,195 (256)

Profile Maximum Likelihood Estimation of Single-Index Spatial Dynamic Panel Data Model

open access: yesMathematics, 2023
In this paper, the spatial dynamic panel data (SDPD) model is extended to the single-index spatial dynamic panel data (Si-SDPD) model by introducing a nonlinear connection function to reflect the interaction between explanatory variables.
Mengqi Zhang, Boping Tian
doaj   +1 more source

Assessing parameter identifiability for Dynamic Causal Modelling of fMRI data

open access: yesFrontiers in Neuroscience, 2015
Deterministic dynamic causal modelling (DCM) for fMRI data is a sophisticated approach to analyse effective connectivity in terms of directed interactions between brain regions of interest. To date it is difficult to know if acquired fMRI data will yield
Carolin eArand   +6 more
doaj   +1 more source

Multiplicative-Binomial Distribution: Some Results on Characterization, Inference and Random Data Generation [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2013
Multiplicative-binomial distribution is one of the distributions that allows for over-dispersion and under-dispersion relative to the standard binomial distribution.
Elsayed A.H. Elamir
doaj   +1 more source

How to use χ2 test correctly——the likelihood ratio test and the implementation of SAS software

open access: yesSichuan jingshen weisheng, 2021
The purpose of this article was to introduce the likelihood ratio test and the SAS implementation. Specifically, three definitions of the likelihood ratio test statistics and six more commonly used likelihood ratio test statistics were introduced.
Hu Chunyan, Hu Liangping
doaj   +1 more source

An Automated Profile-Likelihood-Based Algorithm for Fast Computation of the Maximum Likelihood Estimate in a Statistical Model for Crash Data

open access: yesJournal of Applied Mathematics, 2022
Numerical computation of maximum likelihood estimates (MLE) is one of the most common problems encountered in applied statistics. Even if there exist many algorithms considered as performing, they can suffer in some cases for one or many of the following
Issa Cherif Geraldo
doaj   +1 more source

Approximate Profile Maximum Likelihood

open access: yesJ. Mach. Learn. Res., 2017
We propose an efficient algorithm for approximate computation of the profile maximum likelihood (PML), a variant of maximum likelihood maximizing the probability of observing a sufficient statistic rather than the empirical sample. The PML has appealing theoretical properties, but is difficult to compute exactly.
Dmitri S. Pavlichin   +2 more
openaire   +4 more sources

On the estimation of the structure parameter of a normal distribution of order p

open access: yesStatistica, 2007
In this paper we compare four different approaches to estimate the structure parameter of a normal distribution of order p (often called exponential power distribution).
Angelo M. Mineo
doaj   +1 more source

Goal Attainment: A Clinically Meaningful Measure of Success of Botulinum Toxin-A Treatment for Lower Limb Spasticity in Ambulatory Patients

open access: yesArchives of Rehabilitation Research and Clinical Translation, 2021
Objectives: The objectives of this study were to evaluate whether botulinum toxin type A (BoNT-A) treatment for lower limb spasticity leads to patient goal attainment and identify factors associated with positive goal attainment and to assess the effect ...
Subbuh Choudhry, MBBS   +4 more
doaj   +1 more source

Internalizing Symptom Profiles Among Youth in Foster Care: A Comparison Study

open access: yesFrontiers in Psychiatry, 2021
Background: A high prevalence of anxiety and depression is found among youth in foster care. There is limited knowledge on the anxiety and depression symptom profiles of youth in foster care. We examined latent profiles of anxiety and depression symptoms
Yasmin Moussavi   +9 more
doaj   +1 more source

Using PyBioNetFit to leverage qualitative and quantitative data in biological model parameterization and uncertainty quantification

open access: yesFrontiers in Immunology
Data generated in studies of cellular regulatory systems are often qualitative. For example, measurements of signaling readouts in the presence and absence of mutations may reveal a rank ordering of responses across conditions but not the precise extents
Ely F. Miller   +8 more
doaj   +1 more source

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