Regensburg 2007 – wissenschaftliches Programm
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AKSOE: Arbeitskreis Physik sozio-ökonomischer Systeme
AKSOE 10: Social-, Information-, and Production Networks
AKSOE 10.3: Vortrag
Mittwoch, 28. März 2007, 17:15–17:45, H8
Efficient Recovery from Cascading Failures in Complex Networks — •Lubos Buzna1, Karsten Peters2, and Dirk Helbing1 — 1Chair for Traffic Modelling and Econometrics, TU Dresden, Dresden, Germany — 2Chair for Logistics and Transport, TU Dresden, Dresden, Germany
Most infrastructures, organisations and communication systems in modern societies are based on large complex networks. The possibility of cascading failures is an "Achille’s heel" of these complex systems and reflects their vulnerability. If an initial failure affects other elements of the network, it may multiply its impact and can result in disastrous problems. Using a recently developed generic model for failure spreading mechanisms, we have studied the dynamic evolution of failures for sample networks. Based on computer simulations of failure spreading scenarios, we have investigated the efficiency of different strategies to fight the spreading of disasters. Our investigations are focused on the comparison of strategies under different conditions. The results indicate that, for certain parameter regions, the success of recovery measures and disaster containment depends crucially on the chosen management strategy. We have demonstrated that, under certain circumstances, optimization techniques can be employed to improve the performance of recovery strategies.