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- Stojan Trajanovski, Yezekael Hayel, Eitan Altman, Huijuan Wang, Piet Van Mieghem
- IEEE Transactions on Control of Network Systems
- 2015

Defining an optimal protection strategy against viruses, spam propagation, or any other kind of contamination process is an important feature for designing new networks and architectures. In this paper, we consider decentralized optimal protection strategies when a virus is propagating over a network through an SIS epidemic process. We assume that each node… (More)

- Dongchao Guo, Stojan Trajanovski, Ruud van de Bovenkamp, Huijuan Wang, Piet Van Mieghem
- Physical review. E, Statistical, nonlinear, and…
- 2013

The interplay between disease dynamics on a network and the dynamics of the structure of that network characterizes many real-world systems of contacts. A continuous-time adaptive susceptible-infectious-susceptible (ASIS) model is introduced in order to investigate this interaction, where a susceptible node avoids infections by breaking its links to its… (More)

- Stojan Trajanovski, Salvatore Scellato, Iraklis Leontiadis
- Physical review. E, Statistical, nonlinear, and…
- 2012

The study of real-world communication systems via complex network models has greatly expanded our understanding on how information flows, even in completely decentralized architectures such as mobile wireless networks. Nonetheless, static network models cannot capture the time-varying aspects and, therefore, various temporal metrics have been introduced. In… (More)

- Piet Van Mieghem, X. L. Ge, Phillip Schumm, Stojan Trajanovski, Hu Wang
- Physical review. E, Statistical, nonlinear, and…
- 2010

Expressions and bounds for Newman's modularity are presented. These results reveal conditions for or properties of the maximum modularity of a network. The influence of the spectrum of the modularity matrix on the maximum modularity is discussed. The second part of the paper investigates how the maximum modularity, the number of clusters, and the hop count… (More)

- Fernando A. Kuipers, Song Yang, Stojan Trajanovski, Ariel Orda
- 2014 IEEE 22nd International Conference on…
- 2014

Solving network flow problems is a fundamental component of traffic engineering and many communications applications, such as content delivery or multi-processor scheduling. While a rich body of work has addressed network flow problems in "deterministic networks" finding flows in "stochastic networks" where performance metrics like bandwidth and delay are… (More)

- Stojan Trajanovski, Javier Martín Hernández, Wynand Winterbach, Piet Van Mieghem
- J. Complex Networks
- 2013

We study the robustness of networks under node removal, considering random node failure, as well as targeted node attacks based on network centrality measures. Whilst both of these have been studied in the literature, existing approaches tend to study random failure in terms of average-case behavior, giving no idea of how badly network performance can… (More)

Defining an optimal protection strategy against viruses, spam propagation or any other kind of contamination process is an important feature for designing new networks and architectures. In this work, we consider decentralized optimal protection strategies when a virus is propagating over a network through a Susceptible Infected Susceptible (SIS) epidemic… (More)

- Stojan Trajanovski, Fernando A. Kuipers, Aleksandar Ilic, Jon A Crowcroft, Piet Van Mieghem
- IEEE/ACM Transactions on Networking
- 2015

Due to their importance to society, communication networks should be built and operated to withstand failures. However, cost considerations make network providers less inclined to take robustness measures against failures that are unlikely to manifest, like several failures coinciding simultaneously in different geographic regions of their network.… (More)

- Stojan Trajanovski, Fernando A. Kuipers, Piet Van Mieghem
- 2013 IEEE Conference on Computer Communications…
- 2013

It is important that our vital networks (e.g., infrastructures) are robust to more than single-link failures. Failures might for instance affect a part of the network that resides in a certain geographical region. In this paper, considering networks embedded in a two-dimensional plane, we study the problem of finding a critical region - that is, a part of… (More)

Modularity has been explored as an important quantitative metric for community and cluster detection in networks. Finding the maximum modularity of a given graph has been proven to be NPcomplete and therefore, several heuristic algorithms have been proposed. We investigate the problem of finding the maximum modularity of classes of graphs that have the same… (More)