Efficient nearly orthogonal and space-filling experimental designs for high-dimensional complex models

Download
Author
Cioppa, Thomas M.
Date
2002-09Advisor
Lucas, Thomas W.
Metadata
Show full item recordAbstract
The Department of Defense uses complex high-dimensional simulation models as an important tool in its decision-making process. To improve on the ability to efficiently explore larger subspaces of these models, this dissertation develops a set of experimental designs for searching over as many as 22 variables in as few as 129 runs. These new designs combine orthogonal Latin hypercubes and uniform designs to create designs having near orthogonality and excellent space-filling properties. Multiple measures are used to assess the quality of candidate designs and to identify the best one. For situations in which more than the minimum number of required runs are available, the designs can be permuted and appended to create additional design points that improve upon the design's orthogonality and space-filling. The designs are used to explore two surfaces. For a known 11 dimensional stochastic response function containing nonlinear and interaction terms, it is shown that the near orthogonal Latin hypercube is substantially better than the orthogonal Latin hypercube in estimating model coefficients. The other exploration uses the agent-based simulation MANA to analyze 22 variables in a complex military peace enforcement operation. The need for maintaining the initiative and speed of execution during these peace enforcement operations is identified.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
Breaking barriers to design dimensions in nearly orthogonal Latin hypercubes
Hernandez, Alejandro S. (Monterey California. Naval Postgraduate School, 2008-12);A dynamic and extremely complex landscape in security and world events presents problems that challenge all sectors of society to develop efficient means for exploring a wide range of solutions. Similarly, exponential ... -
Orthogonal second-order space-filling designs with insights from simulation experiments to support test planning
Sanchez, Paul J.; Sanchez, Susan M. (Wiley, 2019);Frequency-based designs are presented for exploring large numbers of factors in simulation experiments. This approach yields completely orthogonal full second-order space-filling designs. We describe how they are generated, ... -
A revolutionary approach for the development of future ground combat system specifications
Treml, Tobias (Monterey, California: Naval Postgraduate School, 2013-09);This thesis provides a new specification development process for Ground Combat Vehicles (GCVs). The most recent development programs for such a vehicle class failed due to extensive cost overruns. The author uses agent-based ...