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Bayes Estimators for Phylogenetic Reconstruction [PDF]

open access: yesSystematic Biology, 2011
Tree reconstruction methods are often judged by their accuracy, measured by how close they get to the true tree. Yet most reconstruction methods like ML do not explicitly maximize this accuracy. To address this problem, we propose a Bayesian solution.
Peter Huggins   +5 more
openaire   +3 more sources

On the Consistency of Bayes Estimates

open access: yesThe Annals of Statistics, 1986
The authors of this special invited paper give the following summary: ''We discuss frequency properties of Bayes rules, paying special attention to consistency. Some new and fairly natural counterexamples are given, involving nonparametric estimates of location.
Diaconis, Persi, Freedman, David
openaire   +3 more sources

Interval Estimation Naïve Bayes [PDF]

open access: yes, 2003
Recent work in supervised learning has shown that a surprisingly simple Bayesian classifier called naïve Bayes is competitive with state of the art classifiers. This simple approach stands from assumptions of conditional independence among features given the class.
Robles Forcada, Víctor   +4 more
openaire   +2 more sources

An improved Bayes empirical Bayes estimator [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
Consider an experiment yielding an observable random quantity X whose distribution Fθ depends on a parameter θ with θ being distributed according to some distribution G0. We study the Bayesian estimation problem of θ under squared error loss function based on X, as well as some additional data available from other similar experiments according to an ...
R. J. Karunamuni, N. G. N. Prasad
openaire   +2 more sources

A Note on Bayes Estimates

open access: yesThe Annals of Mathematical Statistics, 1967
Throughout this paper we are concerned with the problem of estimating a real parameter when the loss function is such that the Bayes estimate exists, is unique, and satisfies a simple Equation, (1.5). If the estimate is unbiased (in the general sense of Lehmann [3]) we show under weak conditions that it must satisfy another Equation, (1.14).
Bickel, Peter J., Blackwell, David
openaire   +3 more sources

Empirical Bayes and Full Bayes for Signal Estimation

open access: yesCoRR, 2014
We consider signals that follow a parametric distribution where the parameter values are unknown. To estimate such signals from noisy measurements in scalar channels, we study the empirical performance of an empirical Bayes (EB) approach and a full Bayes (FB) approach.
Yanting Ma   +3 more
openaire   +2 more sources

Nonparametric Bayes-risk estimation [PDF]

open access: yesIEEE Transactions on Information Theory, 1971
Two nonparametric methods to estimate the Bayes risk using classified sample sets are described and compared. The first method uses the nearest neighbor error rate as an estimate to bound the Bayes risk. The second method estimates the Bayes decision regions by applying Parzen probability-density function estimates and counts errors made using these ...
Stanley C. Fralick, Richard W. Scott
openaire   +1 more source

Maximum a posteriori estimators as a limit of Bayes estimators [PDF]

open access: yesMathematical Programming, 2018
Maximum a posteriori and Bayes estimators are two common methods of point estimation in Bayesian Statistics. It is commonly accepted that maximum a posteriori estimators are a limiting case of Bayes estimators with 0-1 loss. In this paper, we provide a counterexample which shows that in general this claim is false.
Robert L. Bassett, Julio Deride
openaire   +3 more sources

Universal Bayes Estimators

open access: yesThe Annals of Statistics, 1978
Let $x_1, \cdots, x_n$ be i.i.d. random variables with a distribution depending on the real parameter. Under what conditions is a generalized Bayes estimator independent of the choice of the even loss function? The known answer to this question is that this independence holds if the posterior density is symmetric and unimodal.
openaire   +3 more sources

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