dvse + statistics 9
Generalized Linear Models with Random Effects in the Two-Parameter Exponential Family
17 days ago by dvse
"In this paper we develop a new class of double generalized linear models, introducing a random effect component in the link function describing the linear predictor related to the precision parameter. This is a useful procedure to take into account extra variability and also to make the model more robust. The Bayesian paradigm is adopted to make inference in this class of models. Samples of the joint posterior distribution are draw using standard MCMC procedures. Finally, we illustrate this algorithm by considering simulated and real data sets."
exponential_family
statistics
convexity
17 days ago by dvse
Overdispersed generalized linear models
19 days ago by dvse
"Generalized linear models have become a. standard class of models for data analysts. However in some applications, heterogeneity in samples is too great to be explained by the simple variance function implicit in such models. Utilizing a. two parameter exponential family which is overdispersed relative to a specified one parameter exponential family enables the creation of classes of overdispersed generalized linear models (OGLM’s) which are analytically attractive."
statistics
exponential_family
19 days ago by dvse
On the mathematical foundations of theoretical statistics
8 weeks ago by dvse
R.A Fisher's classical paper outlining the maximum likelihood principle and the notions of sufficiency, efficiency and consistency.
statistics
foundations
estimation
8 weeks ago by dvse
Le Cam Made Simple: No-N Asymptotics
february 2012 by dvse
"If the log likelihood is approximately quadratic with constant Hessian, then the maximum likelihood estimator (MLE) is approximately normally distributed. No other assumptions are required. We do not need independent and identically distributed data. We do not need the law of large numbers (LLN) or the central limit theorem (CLT). We do not need sample size going to infinity or anything going to infinity.
The theory presented here is a combination of Le Cam style involving local asymptotic normality (LAN) and local asymptotic mixed normality (LAMN) and Cramér style involving derivatives and Fisher information. The main tool is convergence in law of the log likelihood function and its derivatives considered as random elements of a Polish space of continuous functions with the metric of uniform convergence on compact sets. We obtain results for both one-step-Newton estimators and Newton-iterated-to-convergence estimators."
statistics
estimation
asymptotics
via:mraginsky
The theory presented here is a combination of Le Cam style involving local asymptotic normality (LAN) and local asymptotic mixed normality (LAMN) and Cramér style involving derivatives and Fisher information. The main tool is convergence in law of the log likelihood function and its derivatives considered as random elements of a Polish space of continuous functions with the metric of uniform convergence on compact sets. We obtain results for both one-step-Newton estimators and Newton-iterated-to-convergence estimators."
february 2012 by dvse
Let's take the Con out of Econometrics (Leamer)
february 2012 by dvse
What to do when "experiments" can not be controlled (not much, but indoctrination helps) - predates current IV methodology?
econometrics
foundations
statistics
february 2012 by dvse
Huber: On the Non-Optimality of Optimal Procedures
february 2012 by dvse
"This paper discusses some subtle, and largely overlooked, differences between conceptual and mathematical optimization goals in statistics, and illustrates them by examples."
statistics
robust_statistics
optimization
foundations
via:mraginsky
february 2012 by dvse
A Method of Handling Curvilinear Correlation for Any Number of Variables (Ezekiel, 1924)
february 2012 by dvse
Additive regression models from 1924, together with an algorithm which looks even more labour intensive than Whittaker graduation!
regression
additive_models
statistics
via:cshalizi
february 2012 by dvse
On a New Method of Graduation
february 2012 by dvse
Whittaker introduces 1D smoothing in 1922, complete with the Bayesian derivation. There is an earlier German paper with a similar model.
actuarial
splines
smoothing
regression
statistics
via:cshalizi
february 2012 by dvse
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