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Budel, G.J.A. (author)Networks are becoming ever more important in today's highly interconnected society, from telecommunication networks and social networks to power grids and the Internet. The field of Network Science seeks to uncover structure within the complex topologies of networks and the processes that govern their link formation. Many methods and models in...doctoral thesis 2024
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Yang, Y. (author), Jia, Bin (author), Yan, Xiao Yong (author), Chen, Y. (author), Tavasszy, Lorant (author), de Bok, M.A. (author), Bai, Zhuotong (author), Liu, Erjian (author), Gao, Ziyou (author)Knowledge of the core structure and inherent dynamics of urban freight transport systems is important for the development of policies, aimed at improving the livability and sustainability of cities. The past decade has witnessed a great deal of efforts into analyzing the geographic structure of urban freight transport systems. However, in...journal article 2023
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Shvydun, S. (author)The analysis of networks describing many social, economic, technological, biological and other systems has attracted a lot of attention last decades. Since most of these complex systems evolve over time, there is a need to investigate the changes, which appear in the system, in order to assess the sustainability of the network and to identify...journal article 2023
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Aydin, N.Y. (author), Yigitbasi, Emre (author), Casali, Y. (author), van Wee, G.P. (author)Rapid urbanization has posed challenges to accessibility to critical services that require in-depth analysis. Complex networks theory has been used to evaluate the evolution of network topologies or the overall accessibility of transportation systems. However, topological metrics to explain the temporal changes in accessibility levels do not...journal article 2023
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Liu, Zhihao (author), Zhou, Jianfeng (author), Reniers, G.L.L.M.E. (author)In order to identify and clarify the association between the factors leading to accidents in a petrochemical tank area, this study analyzes investigation reports of 212 petrochemical tank farm accidents and combines this with the “association rule” mining and science related to complex networks. The main risk factors are determined and a risk...journal article 2023
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Wang, F. (author), Kooij, Robert (author)Network controllability and its robustness has been widely studied. However, analytical methods to calculate network controllability with respect to node removals are currently lacking. This paper develops methods, based upon generating functions for the in- and out-degree distributions, to approximate the minimum number of driver nodes...conference paper 2023
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Yang, Y. (author), Jia, Bin (author), Yan, Xiao Yong (author), Zhi, Danyue (author), Song, Dongdong (author), Chen, Yan (author), de Bok, M.A. (author), Tavasszy, Lorant (author), Gao, Ziyou (author)Knowledge of the hierarchical organization of urban heavy truck flows is important for understanding the structure of urban freight system and underlying interactions dynamics, providing insights to assess and develop freight policies. The complexity and dynamic nature of urban freight system pose significant challenges in comprehensively...journal article 2023
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Ma, L. (author), Kitsak, M.A. (author), Van Mieghem, P.F.A. (author)Despite many studies on the transmission mechanism of the Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), it remains still challenging to efficiently reduce mortality. In this work, we apply a two-population Susceptible-Infected-Removed (SIR) model to investigate the COVID-19 spreading when contacts between elderly and non...conference paper 2022
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Kooij, Robert (author), Sørensen, Nikolaj Horsevad (author), Bouffanais, Roland (author)Apart from the role the clustering coefficient plays in the definition of the small-world phenomena, it also has great relevance for practical problems involving networked dynamical systems. To study the impact of the clustering coefficient on dynamical processes taking place on networks, some authors have focused on the construction of...journal article 2021
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Sun, P. (author), Van Mieghem, P.F.A. (author), Kooij, Robert (author), He, Z. (author), Van Mieghem, Piet (author)In this paper, we propose closed-form analytic approximations for the minimum number of driver nodes needed to fully control networks, where links are removed according to both random and targeted attacks. Our approximations rely on the concept of critical links. A link is called critical if its removal increases the required number of driver...conference paper 2019
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Liu, Q. (author), Van Mieghem, P.F.A. (author)To shed light on the disease localization phenomenon, we study a bursty susceptible-infected-susceptible (SIS) model and analyze the model under the mean-field approximation. In the bursty SIS model, the infected nodes infect all their neighbors periodically, and the near-threshold steady-state prevalence is non-constant and maximized by a...journal article 2018
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Çetinay Iyicil, H. (author), Kuipers, F.A. (author), Van Mieghem, P.F.A. (author)This paper combines the fundamentals of an electrical grid, such as flow allocation according to Kirchhoff’s laws and the effect of transmission line reactances with spectral graph theory, and expresses the linearized power flow behaviour in slack-bus independent weighted graph matrices to assess the relation between the topological structure...journal article 2018
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Çetinay Iyicil, H. (author), Devriendt, K.L.T. (author), Van Mieghem, P.F.A. (author)Due to the open data policies, nowadays, some countries have their power grid data available online. This may bring a new concern to the power grid operators in terms of malicious threats. In this paper, we assess the vulnerability of power grids to targeted attacks based on network science. By employing two graph models for power grids as...journal article 2018
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Gama, F. (author), Isufi, E. (author), Leus, G.J.T. (author), Ribeiro, Alejandro (author)In this work, we jointly exploit tools from graph signal processing and control theory to drive a bandlimited graph signal that is being diffused on a random time-varying graph from a subset of nodes. As our main contribution, we rely only on the statistics of the graph to introduce the concept of controllability in the mean, and therefore...conference paper 2018
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Cats, O. (author), Koppenol, Gert Jaap (author), Warnier, Martijn (author)Network robustness refers to as the capacity to absorb disturbances with a minimal impact on system performance. Notwithstanding, network robustness assessment has been mostly confined to the analysis of complete link breakdown based on topological metrics. We propose reliability indicators that encompass changes in network performance with...journal article 2017
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Qu, B. (author), Li, C. (author), Van Mieghem, P.F.A. (author), Wang, H. (author)The prevalence, which is the average fraction of infected nodes, has been studied to evaluate the robustness of a network subject to the spread of epidemics. We explore the vulnerability (infection probability) of each node in the metastable state with a given effective infection rate τ. Specifically, we investigate the ranking of the nodal...journal article 2017
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Proskurnikov, A.V. (author), Cao, Ming (author)Populations of flashing fireflies, claps of applauding audience, cells of cardiac and circadian pacemakers reach synchrony via event-triggered interactions, referred to as pulse couplings. Synchronization via pulse coupling is widely used in wireless sensor networks, providing clock synchronization with parsimonious packet exchanges. In spite...journal article 2017
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Märtens, M. (author), Kuipers, F.A. (author), Van Mieghem, P.F.A. (author)Networks are continuously growing in complexity, which creates challenges for determining their most important characteristics. While analytical bounds are often too conservative, the computational effort of algorithmic approaches does not scale well with network size. This work uses Cartesian Genetic Programming for symbolic regression to...conference paper 2017
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Park Lee, E. (author)The aim of this thesis is to define the specifications of an agent-based model to study the adoption and diffusion of solar PV in the Netherlands, accounting for consumer preferences and social influences. The conceptualization of the model is based on five pillars: agent-based modeling, the theory of planned behavior, choice modeling, dif-...master thesis 2013
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Haffner, M.E.A. (author), Elsinga, M. (author)Urban renewal in the Netherlands has become a matter of ‘networking’. Housing associations, Dutch social landlords, became financially independent in the 1990s and have a responsibility in urban renewal. It is a joint responsibility in which local authority, social landlord and tenants are dependent on each other. This situation is rather new...journal article 2009