Identifying propagation source in time-varying networks

© Springer Nature Switzerland AG 2019. Identifying the propagation sources of malicious attacks in complex networks plays a critical role in limiting the damage caused by them through the timely quarantine of the sources. However, the temporal variation in the topology of the underlying networks and the ongoing dynamic processes challenge our traditional source identification techniques which are considered in static networks. In this chapter, we introduce an effective approach used in criminology to overcome the challenges. For simplicity, we use rumor source identification to present the approach.