Bayesian statistics | Sensitivity analysis

Hyperparameter

In Bayesian statistics, a hyperparameter is a parameter of a prior distribution; the term is used to distinguish them from parameters of the model for the underlying system under analysis. For example, if one is using a beta distribution to model the distribution of the parameter p of a Bernoulli distribution, then: * p is a parameter of the underlying system (Bernoulli distribution), and * α and β are parameters of the prior distribution (beta distribution), hence hyperparameters. One may take a single value for a given hyperparameter, or one can iterate and take a probability distribution on the hyperparameter itself, called a hyperprior. (Wikipedia).

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Related pages

Sensitivity analysis | Beta distribution | Bayesian statistics | Hyperprior | Conjugate prior | Parametric family | Empirical Bayes method | Bernoulli distribution