From: A linear programming model for preserving privacy when disclosing patient spatial information for secondary purposes
In equation (3), ν = s N · ϵ = 1 264 , 327 · s ϵ
Objective function value (unit: meter)
Nearest 10
Nearest 30
s ϵ = 10 ϵ = 22.4
ν = 3.783 × 10− 5
6.0
s ϵ = 20 ϵ = 11.3
ν = 7.567 × 10− 5
18.9
18.7
s ϵ = 30 ϵ = 7.47
ν = 11.350 × 10− 5
33.3
32.9
s ϵ = 33 ϵ = 6.79
ν = 12.485 × 10− 5
37.5
37.0