A Model for Optimal Human Navigation with Stochastic Effects
A Model for Optimal Human Navigation with Stochastic Effects
复制标题
具有随机效应的最佳人类导航模型
DOI:
10.1137/19m1296537
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
S. Osher
中科院分区:
文献类型:
--
作者:
C. Parkinson;David Arnold;A. Bertozzi;S. Osher
We present a method for optimal path planning of human walking paths in mountainous terrain, using a control theoretic formulation and a Hamilton-Jacobi-Bellman equation. Previous models for human navigation were entirely deterministic, assuming perfect knowledge of the ambient elevation data and human walking velocity as a function of local slope of the terrain. Our model includes a stochastic component which can account for uncertainty in the problem, and thus includes a Hamilton-Jacobi-Bellman equation with viscosity. We discuss the model in the presence and absence of stochastic effects, and suggest numerical methods for simulating the model. We discuss two different notions of an optimal path when there is uncertainty in the problem. Finally, we compare the optimal paths suggested by the model at different levels of uncertainty, and observe that as the size of the uncertainty tends to zero (and thus the viscosity in the equation tends to zero), the optimal path tends toward the deterministic optimal path.
影响因子:
1
作者:
Parkinson, Christian;Arnold, David;Bertozzi, Andrea L.;Chow, Yat Tin;Osher, Stanley
通讯作者:
Osher, Stanley
影响因子:
2.5
作者:
Martin, Lindsay;Tsai, Yen-Hsi Richard
通讯作者:
Tsai, Yen-Hsi Richard
影响因子:
1.9
作者:
Arnold, D. J.;Fernandez, D.;Jia, R.;Parkinson, C.;Tonne, D.;Yaniv, Y.;Bertozzi, A. L.;Osher, S. J.
通讯作者:
Osher, S. J.