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van Engelenburg, S.H. (author), Rukanova, B.D. (author), Ubacht, J. (author), Tan, F.S. (author), Tan, Y. (author), Janssen, M.F.W.H.A. (author)Governmental organisations use a diversity of policy instruments for sustainability goals. In the field of materials, they aim to advance the reuse of materials on the one hand. On the other hand, they also want to control critical raw materials (CRMs) to protect society against scarcity. Information sharing is required to monitor for both...conference paper 2022
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Kaur, M. (author), Parkin, S.E. (author), Janssen, M.F.W.H.A. (author), Fiebig, T. (author)The ongoing global COVID-19 pandemic made working from home – wherever working remotely is possible the norm for what had previously been office-based jobs across the world. This change in how we work created a challenging situation for system administrators (sysadmins), as they are the ones building and maintaining the digital infrastructure...journal article 2022
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Kazaz, T. (author), Janssen, G.J.M. (author), Romme, J.P.A. (author), van der Veen, A.J. (author)In wireless networks, an essential step for precise range-based localization is the high-resolution estimation of multipath channel delays. The resolution of traditional delay estimation algorithms is inversely proportional to the bandwidth of the training signals used for channel probing. Considering that typical training signals have...journal article 2022
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Lemke, Florian (author), Janssen, M.F.W.H.A. (author), Draheim, Dirk (author)The need for standardized and visualized performance monitoring on a wide range of topics has become apparent in recent years. In the public sector, there has been an increase in the number of dashboards to create transparency into the progress. Yet, the design of dashboards encounters many challenges ranging from technical to social. The goal...conference paper 2022
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Nouws, S.J.J. (author), Janssen, M.F.W.H.A. (author), Dobbe, R.I.J. (author)Algorithmic systems used in public administration can create or reinforce digital cages. A digital cage refers to algorithmic systems or information architectures that create their own reality through formalization, frequently resulting in incorrect automated decisions with severe impact on citizens. Although much research has identified how...conference paper 2022
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Janssen, C. (author)Ze zijn er volop: mooie plannen die beogen een antwoord te geven op grote opgaven in gebiedsontwikkeling. Deze zomer leggen we de mooiste, grootste, meest gedurfde en utopische plannen langs de meetlat van de realiteit. In deel 4: de Community Land Trust, een soort mini-woningcorporatie voor mensen met een lager of middeninkomen die verbinding...report 2021
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- Janssen, R. (author) doctoral thesis 2021
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Janssen, C. (author)Niet de fysieke functies, maar de manier waarop mensen gebruik maken van gebieden moet centraal komen staan in het debat over de sociaal duurzame stad. Céline Janssen legt op basis van haar promotieonderzoek uit wat dit betekent voor gebiedsontwikkeling. “Dit is ingewikkeld, maar wel een manier om verder te komen dan sociale duurzaamheid alleen...report 2021
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Janssen, R. (author), Liu, Pengyu (author)Phylogenetic networks represent evolutionary history of species and can record natural reticulate evolutionary processes such as horizontal gene transfer and gene recombination. This makes phylogenetic networks a more comprehensive representation of evolutionary history compared to phylogenetic trees. Stochastic processes for generating...journal article 2021
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Mitrou, Lilian (author), Janssen, M.F.W.H.A. (author), Loukis, Euripidis (author)Traditionally public decision-makers have been given discretion in many of the decisions they have to make in how to comply with legislation and policies. In this way, the context and specific circumstances can be taken into account when making decisions. This enables more acceptable solutions, but at the same time, discretion might result in...conference paper 2021
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Bharosa, Nitesh (author), Marangio, Federica (author), Petti, Claudio (author), Janssen, M.F.W.H.A. (author)Public agencies struggle with engaging citizens in digital public service innovation. The notion that citizen engagement in public service innovation can lead to more citizen-friendly digital services is widely accepted. Moreover, citizen engagement has also become an indicator of legitimacy; public service innovation without citizen engagement...conference paper 2021
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van der Voort, H.G. (author), van Bulderen, Sabine (author), Cunningham, Scott (author), Janssen, M.F.W.H.A. (author)The road from data generation to data use is commonly approached as a data-driven, functional process in which domain expertise is integrated as an afterthought. In this contribution we complement this functional view with an institutional view, that takes data analysis and domain professionalism as complementary (yet fallible) knowledge...journal article 2021
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Dun, H. (author), Tiberius, C.C.J.M. (author), Diouf, C.E.V. (author), Janssen, G.J.M. (author)This paper presents a methodology to design a sparse multiband ranging signal with a large virtual bandwidth, from which time delay and carrier phase are estimated by a low complexity multivariate maximum likelihood (ML) method. In the estimation model for a multipath channel, not all reflected paths are considered, and time delay and carrier...journal article 2021
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Weerakkody, Vishanth (author), Janssen, M.F.W.H.A. (author), El-Haddadeh, Ramzi (author)The realisation of citizen-centric services in the public sector requires breaking traditional silos and transforming existing institutional structures and processes. Recent transformation efforts undertaken in government institutions have embraced business process re-engineering (BPR) concepts championed by the private sector over decades...journal article 2021
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Diouf, C.E.V. (author), Janssen, G.J.M. (author), Dun, H. (author), Kazaz, T. (author), Tiberius, C.C.J.M. (author)For validation and demonstration of high accuracy ranging and positioning algorithms and systems, a wideband radio signal generation and acquisition testbed, tightly synchronized in time and frequency, is needed. The development of such a testbed requires solutions to several challenges. Tight time and frequency synchronization, derived from...journal article 2021
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Janssen, R. (author)Head moves are a type of rearrangement moves for phylogenetic net-works. They have primarily been studied as part of other types of moves, such as rSPR moves. Here, we study head moves as a type of moves on themselves. We show that the tiers (k > 0) of phylogenetic network space are connected by local head moves. Then, we show tail moves...journal article 2021
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Zhu, Yonghan (author), Janssen, M.F.W.H.A. (author), Wang, Rui (author), Liu, Yang (author)The global spread of COVID-19 has caused a huge number of confirmed cases and deaths, which in return leads to a plethora of mental disorders across the world. In order to address citizens’ psychological problems, government agencies in many countries have employed AI-based chatbots to provide mental health services. However, there is a...journal article 2021
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Di Staso, D. (author), Kleiman, F. (author), Crompvoets, Joep (author), Janssen, M.F.W.H.A. (author)According to open government principles, public administration should make its data available to the public to create transparency, accountability, and to facilitate participation in public decision-making. Open-Data Policies (ODPs) were developed to encourage the opening of governmental data to the public, but require collaboration and...conference paper 2021
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Kuğuoğlu, B.K. (author), van der Voort, H.G. (author), Janssen, M.F.W.H.A. (author)Despite the promise of AI and IoT, the efforts of many organizations at scaling smart city initiatives fall short. Organizations often start by exploring the potential with a proof-of-concept and a pilot project, with the process later grinding to a halt for various reasons. Pilot purgatory, in which organizations invest in small-scale...journal article 2021
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Mondal, Md Ashifuddin (author), Rehena, Zeenat (author), Janssen, M.F.W.H.A. (author)Smart parking is becoming more and more an integral part of smart city initiatives. Utilizing and managing parking areas is a challenging task as space is often limited, finding empty spaces are hard and citizens want to park their vehicles close to their preferred places. This becomes worse in important/posh areas of major metropolitan cities...journal article 2021