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Linwei Hu

PhD Candidate, University of Georgia Department of Statistics
The Cohen Room (230), Statistics Building

In design of experiments, optimal designs are designs that  can glean the maximal amount of information from a study.   Therefore, an optimal design can reduce the number of ex- perimental units needed and saving the cost of study.   However, the research  in designing optimal experiments has not kept up with the increasingly complicated structure of data and models; especially for correlated data and multi-covariate models, finding optimal designs is very difficult.

In a series of papers by Yang and Stufken, the complete class approach has been revitalized by applying it to the optimal design problem with great success. Their inspirational idea has spawned my research, which includes three pro jects for three different topics.

In the first pro ject, we develop a general approach to find optimal designs for independent data with a single covariate.  There has been lots of research under this topic, but most of work are done case by case. So we propose a unified way of finding optimal designs for a class of models under general optimality criteria.  In the second pro ject,  we consider correlated data with a single covariate. There are very few results under this topic.  To bridge the gap, we extend the result from independent data to correlated data.  Finally,  we consider multi-covariate models under independent data.   We are unable to find the close-form solution

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