A new proof of the stick-breaking representation of Dirichlet processes
A new proof of the stick-breaking representation of Dirichlet processes
复制标题
狄利克雷过程断棒表示的新证明
DOI:
10.1007/s42952-019-00008-w
复制
发表时间:
2020
影响因子:
0.6
通讯作者:
MacEachern, Steven N.
中科院分区:
文献类型:
--
作者:
Lee, Jaeyong;MacEachern, Steven N.
The stick-breaking representation is one of the fundamental properties of the Dirichlet process. It represents the random probability measure as a discrete random sum whose weights and atoms are formed by independent and identically distributed sequences of beta variates and draws from the normalized base measure of the Dirichlet process parameter. It is used extensively in posterior simulation for statistical models with Dirichlet processes. The original proof of Sethuraman (Stat Sin 4:639–650, 1994) relies on an indirect distributional equation and does not encourage an intuitive understanding of the property. In this paper, we give a new proof of the stick-breaking representation of the Dirichlet process that provides an intuitive understanding of the theorem. The proof is based on the posterior distribution and self-similarity properties of the Dirichlet process.
DOI:
10.1198/016214508000000553
发表时间:
2008-09-01
影响因子:
3.7
作者:
Rodriguez, Abel;Dunson, David B.;Gelfand, Alan E.
通讯作者:
Gelfand, Alan E.
影响因子:
0.8
作者:
Jeffrey W. Miller
通讯作者:
Jeffrey W. Miller
影响因子:
4.4
作者:
Blei, David M.;Jordan, Michael I.
通讯作者:
Jordan, Michael I.