15–19 Sept 2024
Leuven, Belgium
Europe/Berlin timezone

Optimal designs for mixture choice experiments by Simulated Annealing

18 Sept 2024, 10:25
20m
Auditorium

Auditorium

Speaker

Yicheng Mao (Maastricht University)

Description

Mixture choice experiments investigate people's preferences for products composed of different ingredients. To ensure the quality of the experimental design, many researchers use Bayesian optimal design methods. Efficient search algorithms are essential for obtaining such designs, yet research in the field of mixture choice experiments is still not extensive. Our paper pioneers the use of a Simulated Annealing (SA) algorithm to construct Bayesian optimal designs for mixture choice experiments. Our SA algorithm not only accepts better solutions but also has a certain probability of accepting inferior solutions. This approach effectively prevents rapid convergence, enabling exploration of a broader experimental region, thus yielding better designs within a given time frame compared to the popular mixture coordinate exchange method. We demonstrate the superior performance of our SA algorithm through extensive computational experiments and a real-life example.

Type of presentation Talk
Classification Both methodology and application
Keywords Choice Experiment; Bayesian Optimal Design; Mixture Experiment

Primary author

Yicheng Mao (Maastricht University)

Co-author

Prof. Roselinde Kessels (Maastricht University)

Presentation materials

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