Abstract #301543

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JSM 2002 Abstract #301543
Activity Number: 388
Type: Contributed
Date/Time: Thursday, August 15, 2002 : 8:30 AM to 10:20 AM
Sponsor: Biometrics Section*
Abstract - #301543
Title: Least Square Method for a Survival Change-point Model
Author(s): Ramin Arani*+
Affiliation(s): Johnson & Johnson Pharmaceutical R&D
Address: 1125 Trenton-Harbourton Road, Titusville, New Jersey, 08560-0200, USA
Keywords: Least Square ; Change-point ; Survival data
Abstract:

The change-point problem has been studied in a variety of contexts. In most of the methodologies, variations of likelihood ratio test are utilized, which can be computationally intensive. Furthermore, estimation of standard errors of the change-point can be tedious and cumbersome. Consider a piecewise constant hazard function with unknown change-point. Alaan's least square method will explore, and the properties of estimators will be examined through simulation.

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Revised March 2002