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Recently the class of normalized random measures with independent increments, which contains the Dirichlet process as a particular case, has been introduced. Here a new technique for deriving moments of these random probability measures is proposed. It is shown that, "a priori", most of the...
Persistent link: https://www.econbiz.de/10005285137
One of the main research areas in Bayesian Nonparametrics is the proposal and study of priors which generalize the Dirichlet process. In this paper, we provide a comprehensive Bayesian non-parametric analysis of random probabilities which are obtained by normalizing random measures with...
Persistent link: https://www.econbiz.de/10005285184
Persistent link: https://www.econbiz.de/10011035964
type="main" xml:id="sjos12047-abs-0001" <title type="main">Abstract</title>This paper examines the use of Dirichlet process mixtures for curve fitting. An important modelling aspect in this setting is the choice between constant and covariate-dependent weights. By examining the problem of curve fitting from a predictive...
Persistent link: https://www.econbiz.de/10011153108
A new simulation method, "auxiliary random functions" is introduced. When used within a Gibbs sampler, this method enables a unified treatment of exact, right-censored, left-censored, left-truncated and interval censored data, with and without covariates in survival models. The models and...
Persistent link: https://www.econbiz.de/10005683568
Let Ω be a space of densities with respect to some "σ"-finite measure "μ" and let <b>Π</b> be a prior distribution having support Ω with respect to some suitable topology. Conditional on "f", let <b>X</b>-super-<b>n</b> = ("X"<sub>1</sub>&hairsp;,…, &hairsp;"X"<sub>"n"</sub>) be an independent and identically distributed sample of size <b>"n"</b>...
Persistent link: https://www.econbiz.de/10005324588