Bayesian Nonparametric Estimation Based on Censored Data
Ferguson, Thomas S. ; Phadia, Eswar G.
Ann. Statist., Tome 7 (1979) no. 1, p. 163-186 / Harvested from Project Euclid
Let $X_1, \cdots, X_n$ be a random sample from an unknown $\operatorname{cdf} F$, let $y_1, \cdots, y_n$ be known real constants, and let $Z_i = \min(X_i, y_i), i = 1, \cdots, n$. It is required to estimate $F$ on the basis of the observations $Z_1, \cdots, Z_n$, when the loss is squared error. We find a Bayes estimate of $F$ when the prior distribution of $F$ is a process neutral to the right. This generalizes results of Susarla and Van Ryzin who use a Dirichlet process prior. Two types of censoring are introduced--the inclusive and exclusive types--and the class of maximum likelihood estimates which thus generalize the product limit estimate of Kaplan and Meier is exhibited. The modal estimate of $F$ for a Dirichlet process prior is found and related to work of Ramsey. In closing, an example illustrating the techniques is given.
Publié le : 1979-01-14
Classification:  Bayesian nonparametric estimation,  survival function,  censored data,  prior distribution,  process neutral to the right,  Dirichlet process,  processes with independent increments,  modal estimation,  62C10,  62G05,  60K99
@article{1176344562,
     author = {Ferguson, Thomas S. and Phadia, Eswar G.},
     title = {Bayesian Nonparametric Estimation Based on Censored Data},
     journal = {Ann. Statist.},
     volume = {7},
     number = {1},
     year = {1979},
     pages = { 163-186},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1176344562}
}
Ferguson, Thomas S.; Phadia, Eswar G. Bayesian Nonparametric Estimation Based on Censored Data. Ann. Statist., Tome 7 (1979) no. 1, pp.  163-186. http://gdmltest.u-ga.fr/item/1176344562/