Optimum designs for mixtures with relational constraints on the components
by Manisha Pal; Nripes Kumar Mandal
International Journal of Experimental Design and Process Optimisation (IJEDPO), Vol. 3, No. 3, 2013

Abstract: In many experimentations with mixtures, the classical mixture models are found to be inappropriate to describe the response. In pharmaceutical research, for example, the components of the mixture are often classified into groups and the proportions of different groups in the mixture are fixed. This results in relational constraints on the mixing components. In the paper, we study a mixture model appropriate in such a situation. We attempt to find optimum designs for estimation of parameters in the model, and also for estimation of the optimum proportions of components in a group. The support points of the optimum designs are found to belong to the union of barycentres of the domains of the groups involved.

Online publication date: Wed, 02-Jul-2014

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