Theory and Modern Applications
Notation | Meaning | Unit |
---|---|---|
S(t) | Strongly-protected susceptible computers | In number |
W(t) | Weakly-protected susceptible computers | In number |
I(t) | Infected computers | In number |
\(R_{S}(t)\) | Susceptible removable devices | In number |
\(R_{I}(t)\) | Infected removable devices | In number |
N(t) | The total number of computers | In number |
\(R_{N}(t)\) | The total number of removable devices | In number |
β | The infection rate of W-node caused by an infected computer | \(\mathrm{Day} ^{-1}\) |
δ | The infection rate of W-node caused by an infected removable device | \(\mathrm{Day} ^{-1}\) |
ϵ | The rate that W-node enters S-node | \(\mathrm{Day} ^{-1}\) |
α | The rate that S-node converts to W-node | \(\mathrm{Day} ^{-1}\) |
γ | The recovery rate of infected computers | \(\mathrm{Day} ^{-1}\) |
\(\sigma _{1}\) | The infection rate of \(R_{S}\)-node caused by an infected computer | \(\mathrm{Day} ^{-1}\) |
\(\sigma _{2}\) | The recovery rate of infected removable devices | \(\mathrm{Day} ^{-1}\) |