Results 11 to 20 of about 1,338,681 (301)

Quasi-likelihood or extended quasi-likelihood? An information-geometric approach

open access: yesAnnals of the Institute of Statistical Mathematics, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Paul Vos
openaire   +3 more sources

On quasi likelihood for semimartingales [PDF]

open access: yesStochastic Processes and their Applications, 1990
This paper provides a general approach to constructing a quasi-score function for estimation when the observed process is a special semimartingale. The quasi-score function actually gives the true score estimating function, when this exists, under minor regularity conditions.
Sørensen, Michael
openaire   +2 more sources

Estimation for stochastic volatility model: Quasi-likelihood and asymptotic quasi-likelihood approaches [PDF]

open access: yesJournal of King Saud University - Science, 2017
AbstractFor estimation of the stochastic volatility model (SVM), this paper suggests the quasi-likelihood (QL) and asymptotic quasi-likelihood (AQL) methods. The QL approach is quite simple and does not require full knowledge of the likelihood functions of the SVM.
Alzghool, Raed
openaire   +2 more sources

Bayesian Nonparametric Quasi Likelihood [PDF]

open access: yesJournal of the American Statistical Association
A recent trend in Bayesian research has been revisiting generalizations of the likelihood that enable Bayesian inference without requiring the specification of a model for the data generating mechanism. This paper focuses on a Bayesian nonparametric extension of Wedderburn's quasi-likelihood, using Bayesian additive regression trees to model the mean ...
Linero, Antonio R.
core   +4 more sources

Quasi-likelihood for Spatial Point Processes. [PDF]

open access: yesJ R Stat Soc Series B Stat Methodol, 2015
SummaryFitting regression models for intensity functions of spatial point processes is of great interest in ecological and epidemiological studies of association between spatially referenced events and geographical or environmental covariates. When Cox or cluster process models are used to accommodate clustering that is not accounted for by the ...
Guan Y, Jalilian A, Waagepetersen R.
europepmc   +5 more sources

Quasi-likelihood and Related Methods

open access: yesJournal of Statistics, 1995
It may be difficult to decide what distribution one's observations follow, but the form of the mean-variance relationship is often much easier to postulate; this is what makes quasi-likelihood useful. In"some of the cases where quasi-likelihood method 'is unable to provide reasonable results, a more general cla,ss of estimating functions, (Crowder ...
Mujahid Rasul
openaire   +2 more sources

A Note on Extended Quasi-Likelihood [PDF]

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1987
SUMMARY We study the method of extended quasi-likelihood estimation and inference of a variance function recently proposed by Nelder and Pregibon. The estimates are inconsistent in general, and the test levels can be biased, but in many cases such as the exponential family the inconsistency and bias will not be a major concern.
R. J. Caroll, Marie Davidian
openaire   +2 more sources

A Quasi-Likelihood Approach to Nonnegative Matrix Factorization. [PDF]

open access: yesNeural Comput, 2016
A unified approach to nonnegative matrix factorization based on the theory of generalized linear models is proposed. This approach embeds a variety of statistical models, including the exponential family, within a single theoretical framework and provides a unified view of such factorizations from the perspective of quasi-likelihood.
Devarajan K, Cheung VC.
europepmc   +4 more sources

Local quasi-likelihood with a parametric guide. [PDF]

open access: yesAnn Stat, 2009
Published in at http://dx.doi.org/10.1214/09-AOS713 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Fan J, Wu Y, Feng Y.
europepmc   +5 more sources

On the BIC for determining the number of control points in B-spline surface approximation in case of correlated observations

open access: yesJournal of Geodetic Science, 2020
B-spline curves are a linear combination of control points (CP) and B-spline basis functions. They satisfy the strong convex hull property and have a fine and local shape control as changing one CP affects the curve locally, whereas the total number of ...
Kermarrec Gaël, Alkhatib Hamza
doaj   +1 more source

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