Title
I-optimal design of mixture experiments in the presence of ingredient availability constraints
Author
Faculty/Department
Faculty of Applied Economics
Publication type
article
Publication
Milwaukee, Wis. ,
Subject
Economics
Mathematics
Source (journal)
Journal of quality technology. - Milwaukee, Wis.
Volume/pages
47(2015) :3 , p. 220-234
ISSN
0022-4065
ISI
000356643800003
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
Mixture experiments usually involve various constraints on the proportions of the ingredients of the mixture under study. In this paper, inspired by the fact that the available stock of certain ingredients is often limited, we focus on a new type of constraint, which we refer to as an ingredient availability constraint. This type of constraint substantially complicates the search for optimal designs for mixture experiments. One difficulty, for instance, is that the optimal number of experimental runs is not known a priori. To deal with this complication, we propose a variable neighborhood search algorithm to find I-optimal designs for mixture experiments in case there is a limited stock of certain ingredients.
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Handle