Date of Award

12-1-2018

Degree Type

Dissertation

Degree Name

Doctor of Philosophy

Department

Mathematics

First Advisor

Gerhard Dikta

Second Advisor

Jay H Beder

Third Advisor

Jugal Ghorai

Committee Members

Vytaras Brazauskas, Chao Zhu

Keywords

Kaplan-Meier estimator, reverse supermartingale, semi-parametric, SLLN, survival analysis

Abstract

We introduce a semi-parametric U-statistics estimator for randomly right censored data. We will study the strong law of large numbers for this estimator under proper assumptions about the conditional expectation of the censoring indicator with re- spect to the observed life times. Moreover we will conduct simulation studies, where the semi-parametric estimator is compared to a U-statistic based on the Kaplan- Meier product limit estimator in terms of bias, variance and mean squared error, under different censoring models.

Share

COinS