A0523
Title: Screening using locating arrays
Authors: Violet Syrotiuk - Arizona State University (United States) [presenting]
Abstract: Screening experiments are often the first step in identifying potentially important factors that significantly impact the response variables of a system. We propose an experimental design and analysis method for screening experiments based on a \textit{locating array}, a new combinatorial design. Locating arrays have an expected number of runs that grows logarithmically in the number of factors. Thus, our methods can support a very large factor-space. They also support categorical factors due to the level-wise nature of both the design and the analysis. We provide a precise definition of locating arrays and describe our algorithm used for analysis, based on orthogonal matching pursuit. Results on real data sets provide a check of the validity of our methods.