This treatment demonstrates the utility of response surface models (RSMs) as predictive, companion tools which aid in the development of harvesting (control) strategies applicable to predator-prey dynamic systems. To this end a control algorithm is derived that considers the regulation of a predator-prey natural resource while considering revenue for commercial ventures and regulatory agencies. Numerical simulations provide the mechanism to quantify performance measures associated with control algorithms, yet complicated problems require that all “tools” available be considered. Complex problems may be more tractable when simulation results are combined with alternate, continuous models exhibiting predictive capacities. For this reason, RSMs are appealing; analytic evaluation of the state, the gradient, and the Hessian matrix is possible. From these models we may glean valuable information linked to the gathered data revealing information about the “true nature” of the ecological system. Therefore, we propose to create RSMs based on scattered data obtained from the ordinary differential equation (ODE) dynamic system model. These response surface models are constructed using radial basis functions (RBFs); RSMs so created have the desirable property of matching the objective function value exactly at each sampled data point. Furthermore, they have the ability to interpolate to any desired point throughout the parameter space. This is powerful as the “objective function” may be any function of critical importance to the analyst which in this treatment is the predator biomass time rate of change (ODE) itself. This has the immediate implication of providing a single ODE model, with a “locally” or even perhaps a “globally” precise nature. Since such models are constructed from scattered data, which is consistent with what would be collected from field measurements, a further connection of theory to practice is realized. It will be shown that these RSMs provide greater insight into ecological systems, with special emphasis on parameter estimation.
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ASME 2013 International Mechanical Engineering Congress and Exposition
November 15–21, 2013
San Diego, California, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5624-6
PROCEEDINGS PAPER
Locally Precise Response Surface Models for the Generalization of Controlled Dynamic Systems and Associated Performance Measures
Dale B. McDonald
Dale B. McDonald
Midwestern State University, Wichita Falls, TX
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Dale B. McDonald
Midwestern State University, Wichita Falls, TX
Paper No:
IMECE2013-62099, V04AT04A001; 9 pages
Published Online:
April 2, 2014
Citation
McDonald, DB. "Locally Precise Response Surface Models for the Generalization of Controlled Dynamic Systems and Associated Performance Measures." Proceedings of the ASME 2013 International Mechanical Engineering Congress and Exposition. Volume 4A: Dynamics, Vibration and Control. San Diego, California, USA. November 15–21, 2013. V04AT04A001. ASME. https://doi.org/10.1115/IMECE2013-62099
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