Fast uncertainty quantification for dynamic flux balance analysis using non-smooth polynomial chaos expansions
Fig 7
Parity plots for nsPCE surrogate models.
(a,b,c) Target RMSE level εtarget = 10−2. (d,e,f) Target RMSE level εtarget = 10−3. (g,h,i) Target RMSE level εtarget = 10−4. The left, middle, and right columns correspond to glucose concentration at 7 hours, xylose concentration at 8 hours, and biomass concentration at 8 hours, respectively. The parity plots for global sparse basis-adaptive PCE are overlaid for comparison purposes. The global PCE has considerably larger error than nsPCE.