Jarrod K. Grewe: Oral Defense of Doctoral Dissertation
Jun 22, 2022, 11:00 AM - 12:00 PM
Oral Defense of Doctoral Dissertation
Doctor of Philosophy in Computational Sciences and Informatics
Department of Computational and Data Sciences
College of Science
George Mason University
Jarrod K. Grewe
Bachelor of Science in Mathematics, College of the Ozarks, 2009
Master of Science in Applied Mathematics, University of Missouri-Columbia, 2011
Optimizing Search Plans for Teams of Mobile and Stationary
Searchers with a New Class of Searchers over a Multi-zoned
Domain and Finite Time
Thursday, June 2, 2022 - 11:00 a.m.
All are invited to attend.
Dr. Igor Griva, Dissertation Director
Dr. Estela Blaisten, Committee Chair
Dr. Andrew Crooks, Committee Member
Dr. Hamdi Kavak Committee Member
This dissertation introduces a new search theory methodology, nicknamed Pathfinder, that can optimize teams of heterogeneous mobile and stationary searchers as well as searchers that can transport other searchers. In addition, Pathfinder can optimize searches over a multi-zone domain and model target behavior based on environmental and behavioral factors. Pathfinder accomplishes this by using an agent-based model to estimate target movement; then it uses nonlinear optimization, teamed with a genetic algorithm, to find optimal search plans. The optimization model considers that search plans should be easy to both implement and create in reality, in addition to having a high probability of finding a target. Thus, the optimization model includes movement constraints that make search plans easier to implement and more cost effective. The obtained results from numerous simulations demonstrate that the methodology has the potential to advance current search theory as well as to enhance current maritime search operations.