The views expressed here are those of the individual authors and not necessarily those of the JSM sponsors, their officers, or their staff.
Online Program Home
Abstract Details
Activity Number:
|
419
|
Type:
|
Contributed
|
Date/Time:
|
Tuesday, July 31, 2012 : 2:00 PM to 3:50 PM
|
Sponsor:
|
Section on Physical and Engineering Sciences
|
Abstract - #304930 |
Title:
|
Evaluation of a New Screening Procedure
|
Author(s):
|
Steve Webb*+
|
Companies:
|
|
Address:
|
809 Grayling Bay, Costa Mesa, CA, 92626-6908, United States
|
Keywords:
|
Design of experiments ;
screening designs ;
simulation models
|
Abstract:
|
The performance of a sequential screening procedure for finding a few active factors from a larger number is investigated. Called the Winnow, it was previously introduced and studied using dummy simulation models. Here we apply it to a legacy simulation using eight different baselines with from 25 to 78 inputs varied. Large fractional factorials are used to find "true" values of the effects. The largest were of the order of one standard deviation for these baselines. The sequential procedure is evaluated by finding how many real effects are identified and the accuracy of the resulting estimates. It is shown that an effect as large as 1 sigma will very likely be found and one as large as 0.5 sigma will usually be found. The winnow is found to be generally better than the alternatives of fixed supersaturated designs or a version of group screening.
|
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 2012 program
|
2012 JSM Online Program Home
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.