- document
-
Berendrecht, W.L. (author), van Vliet, M.E. (author), Griffioen, J. (author)Quality control of large-scale monitoring networks requires the use of automatic procedures to detect potential outliers in an unambiguous and reproducible manner. This paper describes a methodology that combines existing statistical methods to accommodate for the specific characteristics of measurement data obtained from groundwater quality...article 2023
- document
-
Snelder, M. (author), Smit, S. (author), Schadd, M. (author), Walraven, E. (author)Network design problems such as the optimization of road capacities, public transport lines and frequencies, mobility hub locations, shared mobility services and traffic signal settings have been extensively studied in literature using sequential bi-level optimization. However, due to the computational burden, the design and response spaces that...conference paper 2023
- document
-
Yang, Q. (author), Coutino, M. (author), Leus, G. (author), Giannakis, G.B. (author)Graph-based learning and estimation are fundamental problems in various applications involving power, social, and brain networks, to name a few. While learning pair-wise interactions in network data is a well-studied problem, discovering higher-order interactions among subsets of nodes is still not yet fully explored. To this end, encompassing...article 2023
- document
-
Wang, F. (author), Kooij, R. (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 needed...conference paper 2023
- document
-
van der Zwet, K. (author), Barros, A.I. (author), van Engers, T.M. (author), Sloot, P.M.A. (author)Insurgency conflicts pose significant challenges to societies globally. The increase of insurgency conflicts creates a need to understand how insurgencies arise, and to identify societal drivers of insurgencies or effective strategies to counter them. In this paper, we analyze the contributions of computational modeling methods for the analysis...article 2022
- document
-
Chiscop, I. (author), Soro, F. (author), Smith, P. (author)Threat hunting and malware prediction are critical activities to ensure network and system security. These tasks are difficult due to increasing numbers of sophisticated malware families. Automatically detecting anomalous Domain Name System (DNS) queries in operational traffic facilitates the detection of new malware infections, significantly...conference paper 2022
- document
-
He, Y. (author), Coutino, M. (author), Isufi, E. (author), Leus, G. (author)In this work, we focus on partitioning dynamic graphs with two types of nodes (bi-colored), though not necessarily bipartite graphs. They commonly appear in communication network applications, e.g., one color being base stations, the other users, and the dynamic process being the varying connection status between base stations and moving users....conference paper 2022
- document
-
Stoter, A.J.R. (author), Rietveld, B. (author), Jansen, V. (author), Bastiaansen, H.J.M. (author)The ambition of the EU Data Strategy can be summarized as a ‘federation of interoperable data spaces’. Currently, a multitude of architectures, frameworks and protocols is used by various data spaces. The Data Sharing Coalition has provided an architecture framework for interoperability between data spaces, making use of a harmonization domain...conference paper 2022
- document
-
Sastry, S. (author), Garg, P. (author), Silvas, E. (author), Willems, F. (author)Complexity of engine control systems is continuously growing due to an increased number of subsystems and the need for robust performance. For traditional map-based as well as state-of-the-art model-based approaches, this will lead to unacceptable development costs and time for future engines. Parametrization of the embedded models using...conference paper 2022
- document
-
Natali, A. (author), Isufi, E. (author), Coutino Minguez, M.A. (author)This work proposes an algorithmic framework to learn time-varying graphs from online data. The generality offered by the framework renders it model-independent, i.e., it can be theoretically analyzed in its abstract formulation and then instantiated under a variety of model-dependent graph learning problems. This is possible by phrasing (time...article 2022
- document
-
Rozsas, A. (author), Slobbe, A. (author), Huizinga, W. (author), Kruithof, M. (author), ajithkumar Pillai, K. (author), Kleijn, K. (author), Giardina, G. (author)This paper proposes an automated approach to predict crack pattern similarities that correlate well with assessment by structural engineers. We use Siamese convolutional neural networks (SCNN) that take two crack pattern images as inputs and output scalar similarity measures. We focus on 2D masonry facades with and without openings. The image...article 2022
- document
-
Shahmohammadi, M.S. (author), Parker, L.A. (author), Henke, S. (author), Urbanus, J.H. (author)Microplastics are a growing environmental and toxicological concern, having been found in the remotest locations of the earth and within multiple organs of the human body. However, the scale of the problem is not yet fully known as the smallest micro- and nanoplastics (MNPs) cannot accurately be measured due to limitations in measurement and...article 2022
- document
-
Liu, X. (author), Achterberg, M.A. (author), Kooij, R.E. (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
- document
-
van der Burg, E. (author), Hogervorst, M.A. (author), Toet, A. (author)Natural scenes are typically highly heterogeneous, making it difficult to assess camouflage effectiveness for moving objects since their local contrast varies with their momentary position. Camouflage performance is usually assessed through visual search and detection experiments involving human observers. However, such studies are time...conference paper 2022
- document
-
Werkhoven, P. (author), Bouwman, J. (author), van Diggelen, J. (author), Dijk, J. (author), van der Meulen, M. (author), Neerincx, M. (author), Raaijmakers, S. (author), van Veenstra, A.F. (author)TNO has lived up to its motto ‘Innovation for life’ by playing a significant part in this digital revolution, with major breakthroughs in computer simulation, network transactions, wireless communication, cyber security, optical satellite communication and quantum computing.report 2022
- document
-
Dussi, S. (author), Octaviano, R. (author), Shoeibi Omrani, P.S. (author)Predicting the degradation of the Electrical Submersible Pumps (ESP) performance well in advance to avoid its failure is a rewarding yet challenging task. The complex interdependencies with well-reservoir properties and between machine components influence ESP performance and ultimately can lead to different types of failure. Predictions based...conference paper 2022
- document
-
David, L.Z. (author), Schraagen, J.M.C. (author), Endedijk, M. (author)The increased complexity of modern sociotechnical systems (STS) necessitates the need for a manageable representation of their attributes, to augment our understanding and enable the development of ways through which we can increase their effectiveness, efficiency, and safety. Although many of the methodologies developed in the Human Factors...article 2022
- document
-
Sharma, S. (author), van Lint, H. (author), Tavasszy, L. (author), Snelder, M. (author)This paper studies and compares the gap selection process of multiple vehicle classes (passenger cars, delivery vans, and trucks) within their discretionary lane changing activities. Given a trajectory or a sequence of gap selection decisions, we aim to predict whether a vehicle will change or keep a lane. For this purpose, we use a large...article 2022
- document
-
Derks, M. (author), Berkers, F. (author), Tukker, A. (author)Sustainability transitions are purposeful and require deliberate collective action from multiple organizations, leading to the necessity to adopt new business models and redesign value networks. In both business model and sustainability transition research, the explicit activities needed to re-shape value creation and capture systems of...article 2022
- document
-
Kumaresan, A. (author), Kandasamy, N.K. (author), Kooij, R.E. (author)The endeavour towards making power distribution systems (PDSs) smarter has made the interdependence on communication network indispensable. Further, prospective high penetration of intermittent renewable energy sources in the form of distributed energy resources (DERs) has resulted in the necessity for smart controllers on such DERs. Inverters...article 2022