A Universal Prior Distribution for Bayesian Consistency of Non parametric Procedures
Författare
Summary, in English
The introduction of the Hausdorff alpha-entropy in Xing (2008a), Xing (2008b), Xing (2010), Xing (2011), and Xing and Ranneby (2009) has lead a series of improvements of well-known results on posterior consistency. In this paper we discuss an application of the Hausdorff a-entropy. We construct a universal prior distribution such that the corresponding posterior distribution is almost surely consistent. The approach of the construction of this type of prior distribution is natural, but it works very well for all separable models. We illustrate such prior distributions by examples. In particular, we obtain that if the true density function is known to be some normal probability density function with unknown mean and unknown variance then without any additional assumption one can construct a prior distribution which leads to posterior consistency.
Avdelning/ar
Publiceringsår
2015
Språk
Engelska
Sidor
972-982
Publikation/Tidskrift/Serie
Communications in Statistics: Theory and Methods
Volym
44
Issue
5
Dokumenttyp
Artikel i tidskrift
Förlag
Marcel Dekker
Ämne
- Mathematics
Nyckelord
- Density function
- Hausdorff entropy
- Infinite-dimensional model
- Posterior consistency
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0361-0926