Showing 1 - 10 of 13
We investigate topologically biased failure in scale-free networks with degree distribution $P(k) \propto k^{-\gamma}$ . The probability $p$ that an edge remains intact is assumed to depend on the degree $k$ of adjacent nodes $i$ and $j$ through $p_{ij} \propto (k_i k_j)^{-\alpha}$ . By varying...
Persistent link: https://www.econbiz.de/10008496688
While new forms of attacks are developed every day to compromise essential infrastructures, service providers are also expected to develop strategies to mitigate the risk of extreme failures. In this context, tools of network science have been used to evaluate network robustness and propose...
Persistent link: https://www.econbiz.de/10010754603
Power grids, road maps, and river streams are examples of infrastructural networks which are highly vulnerable to external perturbations. An abrupt local change of load (voltage, traffic density, or water level) might propagate in a cascading way and affect a significant fraction of the network....
Persistent link: https://www.econbiz.de/10011161402
How often will elections end in landslides and what is the probability for a head-to-head race? Analyzing ballot results from several large countries rather anomalous and yet unexplained distributions have been observed. We identify tactical voting as the driving ingredient for the anomalies and...
Persistent link: https://www.econbiz.de/10010614894
The design of efficient large scale networks is a common problem in Operations Research. Some of those, such as electric power grids, transportation systems, communication networks, and others, must maintain their efficiency even after several failures, or malicious attacks. In this work, we...
Persistent link: https://www.econbiz.de/10010614897
We disclose that only considering the largest cluster suffices to obtain a first-order percolation transition. As opposed to previous realizations of explosive percolation our novel models obtain Gaussian cluster distributions and compact clusters as one would expect at first-order transitions....
Persistent link: https://www.econbiz.de/10010614902
We disclose that only considering the largest cluster suffices to obtain a first-order percolation transition. As opposed to previous realizations of explosive percolation our novel models obtain Gaussian cluster distributions and compact clusters as one would expect at first-order transitions....
Persistent link: https://www.econbiz.de/10013142458
Advances in mathematical epidemiology and network science have led to a better understanding of the risks posed by epidemic spreading and informed strategies to contain disease spread through prevention and treatment. However, a challenge that has been overlooked is that, as a disease becomes...
Persistent link: https://www.econbiz.de/10013032482
We investigate topologically biased failure in scale-free networks with degree distribution P(k) ∝ k<sup>−γ</sup> . The probability p that an edge remains intact is assumed to depend on the degree k of adjacent nodes i and j through p<sub>ij</sub> ∝ (k<sub>i</sub> k<sub>j</sub>)<sup>−α</sup> . By varying the exponent α, we interpolate...
Persistent link: https://www.econbiz.de/10013144353
The design of efficient large scale networks is a common problem in Operations Research. Some of those, such as electric power grids, transportation systems, communication networks, and others, must maintain their efficiency even after several failures, or malicious attacks. In this work, we...
Persistent link: https://www.econbiz.de/10014161990