JSM 2004 - Toronto

Abstract #301518

This is the preliminary program for the 2004 Joint Statistical Meetings in Toronto, Canada. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 7-10, 2004); 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 2004 Program page
Activity Number: 106
Type: Topic Contributed
Date/Time: Monday, August 9, 2004 : 10:30 AM to 12:20 PM
Sponsor: Section on Bayesian Statistical Science
Abstract - #301518
Title: Benchmark Estimation--Theoretical Results and Epplications
Author(s): Subharup Guha*+ and Steven MacEachern and Mario Peruggia
Companies: Ohio State University and Ohio State University and Ohio State University
Address: 1958 Neil Ave., Columbus, OH, 43210,
Keywords: benchmark estimation ; post-stratification ; variance reduction
Abstract:

We illustrate the technique of benchmark estimation using an example from the literature. For a subsampling rate of 1-in-50, the observed reductions in MSE often exceed 30% for a number of posterior features. Much larger gains are expected for certain complex estimation methods and for the commonly used thinner subsampling rates. Benchmark estimation can be used wherever other fast or efficient estimation strategies already exist. We discuss some asymptotic properties of benchmark estimators that provide an insight into the gains associated with the technique. The observed gains are found to closely match the theoretical values predicted by the asymptotic, even for k as small as 10.

  • 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 2004 program

JSM 2004 For information, contact jsm@amstat.org or phone (888) 231-3473. If you have questions about the Continuing Education program, please contact the Education Department.
Revised March 2004