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Abstract Details
Activity Number:
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238
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Type:
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Contributed
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Date/Time:
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Monday, August 1, 2011 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Physical and Engineering Sciences
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Abstract - #301522 |
Title:
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Multi-Layer Designs for Computer Experiments
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Author(s):
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Shan Ba*+ and Roshan Joseph Vengazhiyil
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Companies:
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Georgia Institute of Technology and Georgia Institute of Technology
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Address:
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School of Industrial and Systems Engineering, Atlanta, GA, 30332,
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Keywords:
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Foldover technique ;
Fractional factorial design ;
Latin hypercube design ;
Minimum aberration criterion ;
Space-filling design
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Abstract:
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Space-filling designs such as Latin hypercube designs (LHDs) are widely used in computer experiments. However, finding an optimal LHD with good space-filling properties is computationally cumbersome. On the other hand, the well-established factorial designs in physical experiments are unsuitable for computer experiments owing to the redundancy of design points when projected onto a subset of factor space. In this work, we present a new class of space-filling designs developed by splitting two-level factorial designs into multiple layers. The method takes advantages of many available results in factorial design theory and therefore, the proposed Multi-layer designs (MLDs) are easy to generate. Moreover, our numerical study shows that MLDs can have better space-filling properties than optimal LHDs.
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