Revisiting Models of Vulnerabilities of the Networks

Abstract

Abstract:The study critically revisits the models of 'vulnerability' of various types of networks and shows several limits of the current state of the art, including the ambiguous definitions of vulnerability and robustness concepts, the arbitrary use of various connectivity indexes on graphs for assessing the 'vulnerability' of real-world networks to real-world attacks, the lack of any evidence for the proposed models, and the lack of significant statistical approaches. Next, the study shows the limits of using the world 'measure' and 'metric' in relation with connectivity characteristics on graphs. Then, a general cause-effect chain for attacks on networks, especially computer and transportation networks is laid down as a basis for probabilistic model building. Evidence is provided on the relation between graph features and the probabilities of events under an attack and model examples are discussed. An annex on the caution of making public detailed knowledge on such models ends the paper.

Proof of Concept for a Visual Analytics Dashboard for Transportation Network Analysis

“…Many studies tried to analyze different aspects of these type of networks like network centrality [2][3][4][5], vulnerability [6][7][8], reliability [9,10], resilience [11][12][13], flows [14][15][16], etc., and there has been a considerable progress in the past few decades. However, most of the studies are at a theoretical level and the decision-makers need a consistent background in the field of graph theory to perform such analyses and to accurately interpret the results.…”

An Easily Understandable Grey Wolf Optimizer and Its Application to Fuzzy Controller Tuning

“…Fuzzy logic can be involved in adaptive GWO in order to exploit the advantages of the nonlinear input-output maps of fuzzy systems [46][47][48][49][50]. The hybridization with other algorithms is a good option because of the small numbers of GWO; metaheuristics or classical algorithms can be used with this regard in several applications [51][52][53][54].…”