Global Information Lookup Global Information

Bayes estimator information


In estimation theory and decision theory, a Bayes estimator or a Bayes action is an estimator or decision rule that minimizes the posterior expected value of a loss function (i.e., the posterior expected loss). Equivalently, it maximizes the posterior expectation of a utility function. An alternative way of formulating an estimator within Bayesian statistics is maximum a posteriori estimation.

and 20 Related for: Bayes estimator information

Request time (Page generated in 0.837 seconds.)

Bayes estimator

Last Update:

In estimation theory and decision theory, a Bayes estimator or a Bayes action is an estimator or decision rule that minimizes the posterior expected value...

Word Count : 3819

Empirical Bayes method

Last Update:

high-dimensional. Empirical Bayes methods can be seen as an approximation to a fully Bayesian treatment of a hierarchical Bayes model. In, for example, a...

Word Count : 2483

Minimax estimator

Last Update:

unique Bayes estimator, it is also the unique minimax estimator. π {\displaystyle \pi \,\!} is least favorable. Corollary: If a Bayes estimator has constant...

Word Count : 1961

Maximum a posteriori estimation

Last Update:

\\\end{cases}}} as c {\displaystyle c} goes to 0, the Bayes estimator approaches the MAP estimator, provided that the distribution of θ {\displaystyle \theta...

Word Count : 1639

List of things named after Thomas Bayes

Last Update:

relate to statistical methods based on Bayes' theorem, or a follower of these methods. Bayes action – Estimator or decision rule that minimizes the posterior...

Word Count : 988

Rule of succession

Last Update:

the analyst and analysis used). Additive smoothing Krichevsky–Trofimov estimator Principle of indifference Laplace, Pierre-Simon (1814). Essai philosophique...

Word Count : 4780

Bayes

Last Update:

and religious leader Walter Bayes (1869–1956), British painter Bayesian probability, Bayes' theorem, and Bayes estimator, concepts in probability and...

Word Count : 120

Outline of statistics

Last Update:

inference Bayes' theorem Bayes estimator Prior distribution Posterior distribution Conjugate prior Posterior predictive distribution Hierarchical bayes Empirical...

Word Count : 753

List of statistics articles

Last Update:

algorithm Bayes classifier Bayes error rate Bayes estimator Bayes factor Bayes linear statistics Bayes' rule Bayes' theorem Evidence under Bayes theorem...

Word Count : 8290

Binomial distribution

Last Update:

posterior mean estimator is: p ^ b = x + α n + α + β . {\displaystyle {\widehat {p}}_{b}={\frac {x+\alpha }{n+\alpha +\beta }}.} The Bayes estimator is asymptotically...

Word Count : 7629

Naive Bayes classifier

Last Update:

naive Bayes models are known under a variety of names, including simple Bayes and independence Bayes. All these names reference the use of Bayes' theorem...

Word Count : 5488

Maximum likelihood estimation

Last Update:

errors, the Bayes Decision rule can be reformulated as: h Bayes = a r g m a x w [ P ⁡ ( x ∣ w ) P ⁡ ( w ) ] , {\displaystyle h_{\text{Bayes}}={\underset...

Word Count : 9609

Bayes factor

Last Update:

not be improper since the Bayes factor will be undefined if either of the two integrals in its ratio is not finite. The Bayes factor is the ratio of two...

Word Count : 2340

Bias of an estimator

Last Update:

In statistics, the bias of an estimator (or bias function) is the difference between this estimator's expected value and the true value of the parameter...

Word Count : 5349

Estimation theory

Last Update:

MMSE estimator. Commonly used estimators (estimation methods) and topics related to them include: Maximum likelihood estimators Bayes estimators Method...

Word Count : 2565

Decision rule

Last Update:

algorithm. Out of sample prediction in regression and classification models. Admissible decision rule Bayes estimator Classification rule Scoring rule...

Word Count : 300

Kernel density estimation

Last Update:

interested in estimating the shape of this function ƒ. Its kernel density estimator is f ^ h ( x ) = 1 n ∑ i = 1 n K h ( x − x i ) = 1 n h ∑ i = 1 n K ( x...

Word Count : 4568

Minimax

Last Update:

theoretic framework is the Bayes estimator in the presence of a prior distribution Π   . {\displaystyle \Pi \ .} An estimator is Bayes if it minimizes the average...

Word Count : 3807

Median

Last Update:

Hodges–Lehmann estimator is a robust and highly efficient estimator of the population median; for non-symmetric distributions, the Hodges–Lehmann estimator is a...

Word Count : 7641

Admissible decision rule

Last Update:

is called a Bayes rule with respect to π ( θ ) {\displaystyle \pi (\theta )\,\!} . There may be more than one such Bayes rule. If the Bayes risk is infinite...

Word Count : 1487

PDF Search Engine © AllGlobal.net