no code implementations • 1 Nov 2021 • Hua-Liang Wei, S. A. Billings
There have been relatively fewer studies focusing on the investigations of the inherent time-lagged or time-delayed relationships e. g. between the reproduction number (R number), infection cases, and deaths, analyzing the pandemic spread from a systems thinking and dynamic perspective.
no code implementations • 1 Nov 2021 • Hua-Liang Wei, S. A. Billings
A new concept, called quasi-linear transfer functions (QLTF), which can be used to characterize the output frequency behaviour of nonlinear systems, is introduced based on the well-known Volterra series representation.