Searched for: subject%3A%22Complex%255C+networks%22
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Tan, M.D. (author), Ibarra Gonzalez, P. (author), Nikolic, I. (author), Ramirez, Andrea (author)
The reliance of the petrochemical industry on fossil-based sources will need to be reduced by the introduction of Alternative carbon sources (ACS). Introducing ACS in a petrochemical cluster will require existing processes to be modified or replaced, potentially affecting other chemical processes within the cluster due to existing material and...
book chapter 2023
document
Cunningham, S.W. (author), Kwakkel, J.H. (author)
This paper discusses capabilities for a systematic overview of world science delivered from the use of new output indicators of science and technology. The data may be usefully structured using a complex network perspective on national publication and international collaboration. This paper uses a random sample of publication data from 2009 to...
conference paper 2011
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Van Bortel, G. (author)
There has been a growing understanding in the Netherlands and in the UK that sustained area based interventions are needed to address the multiple forms of deprivation concentrated in some neighbourhoods. Not-for-profit housing associations contribute to the regeneration of these neighbourhoods, each within the context of their national housing...
conference paper 2011
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Sydney, A. (author), Schumm, P. (author), Scoglio, C. (author), Kooij, R.E. (author)
conference paper 2008
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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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Baladeh, Aliakbar Eslami (author), Khakzad, N. (author)
Complex networks play a vital role in reliability analysis of real-world applications, demanding for precise and accurate analysis methods for optimal allocations of cost and reliability. Since the configuration of a system may change with every feasible solution of cost allocation optimization equation, finding the best arrangement of the...
conference paper 2019
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Chen, Anqi (author), Sun, P. (author), Kooij, Robert (author)
Network recoverability refers to the ability of a network to recover to a desired performance level after suffering topological perturbations such as link failures. The minimum number of driver nodes is a typical metric to denote the network controllability. In this paper, we propose closed-form analytic approximations for the minimum number of...
conference paper 2021
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Cui, B. (author), Le, Meilong (author), Curran, R. (author)
Cascading Failure has become one of the points of scientific research in complex networks. In this paper, we use the different definition of Load and Capacity in the network, to research the final changing direction of Cascade model with an attack. When the node Capacity is within a specific range, Risk Strength and Elasticity of the link both...
conference paper 2018
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Destyanto, A.R. (author), Huang, Yilin (author), Verbraeck, A. (author)
In this study, we use a complex network analysis approach to investigate the topological structure of container shipping networks in the Indonesia archipelago to understand the network topology. Containerized cargo is responsible for more than half of the inter-island trade volume, making it one critical freight transport mode in the Indonesia...
conference paper 2020
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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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Liu, X. (author), Achterberg, M.A. (author), Kooij, Robert (author)
pinion dynamics models study how the interaction among people influences the opinion formation process. In most opinion dynamics models, only one opinion can exist in the steady state, which is different from the real-life opinion formation process. In 2009, Shao et at. introduced a Non-Consensus Opinion (NCO) model, which allows different...
conference paper 2022
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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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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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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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Van den Esker, H. (author)
Many empirical studies on real-life networks show that many networks are small worlds, meaning that typical distances in these networks are small, and many of them have power-law degree sequences, meaning that the number of nodes with degree k falls off as kˆ (-τ) for some exponent τ>1. These networks are modeled by means of scale-free random...
doctoral thesis 2008
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Trajanovski, S. (author)
Community structure is observed in many real-world networks, such as (online) social networks, where groups of friends of a certain person are often also friends of each other. Newman's modularity has been explored as an important quantitative metric for communities and clusters detection in networks. We present a new expressions and bounds for...
doctoral thesis 2014
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Liu, D. (author)
The infrastructure networks, including the Internet, telecommunication networks, electrical power grids, transportation networks (road, railway, waterway, and airway networks), gas networks and water networks, are becoming more and more complex. The complex infrastructure networks are crucial to our human society, and it has been a hot research ...
doctoral thesis 2013
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Jamakovic, A. (author)
This thesis focuses on the topological characterization of complex networks. It specifically focuses on those elementary graph measures that are of interest when quantifying topology-related aspects of the robustness of complex networks. This thesis makes the following contributions to the field of complex networks. Firstly, the thesis analyses...
doctoral thesis 2008
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Koç, Y. (author)
Current and future trends in environmental, economical, and human-caused factors (such as power demand growth, over-ageing of assets in power grids, and extreme weather conditions) challenge power grid robustness in the near future, necessitating research to better analyse and understand the notion of robustness in power grids, and ultimately to...
doctoral thesis 2015
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Van Boven, E.F.M. (author)
This thesis aims to contribute to the understanding of the structure, composition, properties, functions and dynamics of economic systems. The research output results from joining advances in the scientific disciplines of systems theory, complex networks, Input-Output analysis and economic activity classification systems. The relevance of this...
doctoral thesis 2013
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