Title :
An optimization-based multi-resolution simulation methodology
Author :
Drewry, Darren T. ; Reynolds, Paul F., Jr. ; Emanuel, William R.
Author_Institution :
Dept. of Comput. Sci., Virginia Univ., Charlottesville, VA, USA
Abstract :
The need for new approaches to the consistent simulation of related phenomena at multiple levels of resolution is great. While many fields of application would benefit from a complete and approachable solution to this problem, such solutions have proven extremely difficult. We present a multi-resolution simulation methodology which uses numerical optimization as a tool for maintaining external consistency between models of the same phenomena operating at different levels of temporal and/or spatial resolution. Our approach follows from previous work in the disparate fields of inverse modeling and spacetime constraint-based animation. As a case study, our methodology is applied to two environmental models of forest canopy processes that make overlapping predictions under unique sets of operating assumptions, and which execute at different temporal resolutions. Experimental results are presented and future directions are addressed.
Keywords :
digital simulation; environmental science computing; forestry; optimisation; case study; consistent simulation; environmental models; external consistency; forest canopy processes; future directions; inverse modeling; multi-resolution simulation methodology; multiple resolution levels; numerical optimization; operating assumptions; optimization-based multi-resolution simulation methodology; overlapping predictions; spacetime constraint-based animation; spatial resolution; temporal resolution; temporal resolutions; unique sets; Animation; Application software; Computational modeling; Computer science; Electronic switching systems; Frequency; Inverse problems; Optimization methods; Predictive models; Spatial resolution;
Conference_Titel :
Simulation Conference, 2002. Proceedings of the Winter
Print_ISBN :
0-7803-7614-5
DOI :
10.1109/WSC.2002.1172918