Fig. 1From: Pre-emptive spectral graph protection strategies on multiplex social networksSchematic Illustration of Different Protection Scheme. a Input graph. b Initial epidemics and protection condition at timestamp t=0. c Infected nodes start to infect their neighbors at timestamp t=1. d Input graph. e Initial epidemics and protection condition at timestamp t=0. f Infected nodes start to infect their neighbors at timestamp t=1Back to article page