Abstract #301072

This is the preliminary program for the 2003 Joint Statistical Meetings in San Francisco, California. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 2-5, 2003); and Committee and Business Meetings. This on-line program will be updated frequently to reflect the most current revisions.

To View the Program:
You may choose to view all activities of the program or just parts of it at any one time. All activities are arranged by date and time.

The views expressed here are those of the individual authors
and not necessarily those of the ASA or its board, officers, or staff.

Back to main JSM 2003 Program page
JSM 2003 Abstract #301072
Activity Number: 249
Type: Contributed
Date/Time: Tuesday, August 5, 2003 : 10:30 AM to 12:20 PM
Sponsor: Biometrics Section
Abstract - #301072
Title: The Gamma-Frailty Poisson Model for the Nonparametric Estimation of Panel Count Data
Author(s): Ying Zhang*+ and Mortaza (Mori) Jamshidian
Companies: University of Central Florida and California State University
Address: PO Box 162370, Orlando, FL, 32816-2370,
Keywords: EM algorithm ; isotonic regression ; Monte Carlo ; nonparametric maximum pseudo-likelihood estimate
Abstract:

We study nonparametric estimation of the mean function of a counting process with panel observations. We introduce the gamma-frailty variable to account for the intracorrelation between the panel counts of the counting process. Three simulated examples are given to show that this estimating procedure, while preserving the robustness and simplicity of the computation, improves the efficiency over the nonparametric maximum pseudo-likelihood estimate studied in Wellner and Zhang (2000). A real example from a bladder tumor study is used to illustrate the method.

  • The address information is for the authors that have a + after their name.
  • Authors who are presenting talks have a * after their name.

Back to the full JSM 2003 program

JSM 2003 For information, contact meetings@amstat.org or phone (703) 684-1221. If you have questions about the Continuing Education program, please contact the Education Department.
Revised March 2003