Table 1 The parameters description of the flu model
From: Modeling the influence of Twitter in reducing and increasing the spread of influenza epidemics
Parameter | Description |
|---|---|
\(\beta\) | Transmission coefficient from the susceptible compartment to the exposed compartment |
\(\alpha\) | The coefficient that determines how effective the positive flu information can reduce the transmission rate |
\(\delta\) | The coefficient that determines how effective the negative flu information can increase the transmission rate |
\(\rho\) | Transmission coefficient from the exposed compartment to the infected compartment |
\(\gamma\) | The permanently recover rate |
\(\mu _{i},i=1,2,3\) | The rate that susceptible individuals, exposed individuals, and infectious individuals may tweet about influenza during an epidemic season respectively |
p | The ratio that individuals may provide positive information about influenza during an epidemic season |
q | The ratio that individuals may provide negative information about influenza during an epidemic season |
\(\tau\) | The rate that tweets become outdated |