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Kola, I. (author), Tielman, M.L. (author), Jonker, C.M. (author), van Riemsdijk, M.B. (author)Personal assistant agents have been developed to help people in their daily lives with tasks such as agenda management. In order to provide better support, they should not only model the user’s internal aspects, but also their social situation. Current research on social context tackles this by modelling the social aspects of a situation from...conference paper 2021
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Mercuur, R.A. (author), Dignum, M.V. (author), Jonker, C.M. (author)Inducing behavioural change requires a good understanding of how habits break. We identified two theories in the psychological literature on this process: the decrease theory and persist theory. Both theories are used to explain behavioural change, but one states the original habit fades out, while the other theory states the habit persists. We...conference paper 2021
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Aydoğan, Reyhan (author), Fujita, Katsuhide (author), Baarslag, T. (author), Jonker, C.M. (author), Ito, Takayuki (author)The Automated Negotiating Agents Competition (ANAC) is annually organized competition to facilitate the research on automated negotiation. This paper presents the ANAC 2017 Repeated Multilateral Negotiation League. As human negotiators do, agents are supposed to learn from their previous negotiations and improve their negotiation skills over...conference paper 2021
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Jonker, Tessa (author)Biofilters are increasingly being implemented in urban environments to treat stormwater but knowledge on their pathogen removal capacity at field scale is limited. Adequate pathogen removal is, however, needed if treated water is reused. This research evaluates the fate of Escherichia coli, enterococci and Campylobacter in a field scale...master thesis 2020
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Kola, I. (author), Jonker, C.M. (author), Tielman, M.L. (author), van Riemsdijk, M.B. (author)Support agents are investigated more and more as a way of assisting people in carrying out daily tasks. Support agents should be flexible in adapting their support to what their user needs. Research suggests that the situation someone is in affects their behaviour, however its effect has not been incorporated in the decision making of support...conference paper 2020
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Jonker, Ruben (author)In this research OpenFOAM is used to model and determine the complex hydrodynamic behaviour of a Homogeneous low-crested structure (HLCS) consisting of cubipod artificial concrete elements. The validated model is used to gain insight in the design sensitivities of a two dimensional cross sectional layout to reduce sea wall overtopping. HLCS and...master thesis 2020
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Jonker, Stan (author)This thesis covers the power load flow problem and three numerical methods which can be used as a solution. We firstly discuss the concepts from electrical engineering required to discribe the problem. This includes alternating current and voltage and admittances of various electrical elements. We then use these concepts to derive a set of...bachelor thesis 2020
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Jonker, Arnoud (author)Due to a high contribution of human error in fatal traffic accidents, efforts in research and industry for automating vehicles steadily increased the last 3 decades. To reduce accidents with other road users, automated recognition and classification of road users is crucial. The most accurate models are large convolutional neural networks,...master thesis 2020
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Murukannaiah, P.K. (author), Ajmeri, Nirav (author), Jonker, C.M. (author), Singh, Munindar P. (author)Ethics is inherently a multiagent concern. However, research on AI ethics today is dominated by work on individual agents: (1) how an autonomous robot or car may harm or (differentially) benefit people in hypothetical situations (the so-called trolley problems) and (2) how a machine learning algorithm may produce biased decisions or...conference paper 2020
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Li, X. (author), Jansen, K.M.B. (author), Zhang, X. (author), Rozendaal, M.C. (author), Jonker, C.M. (author)Stress is an important aspect of mental health which impacts on wellbeing. Wearable devices are increasingly used to help people deal with stress in daily life. However, most of the current applications focus on detecting and representing physiological data. In this paper we report on the design of an integrated wearable system composed of...conference paper 2020
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Think Too Fast Nor Too Slow: The Computational Trade-off Between Planning And Reinforcement LearningMoerland, T.M. (author), Deichler, Anna (author), Baldi, S. (author), Broekens, D.J. (author), Jonker, C.M. (author)Planning and reinforcement learning are two key approaches to sequential decision making. Multi-step approximate real-time dynamic programming, a recently successful algorithm class of which AlphaZero [Silver et al., 2018] is an example, combines both by nesting planning within a learning loop. However, the combination of planning and learning...book chapter 2020
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Rozendaal, M.C. (author), van Beek, E. (author), Haselager, Pim (author), Abbink, D.A. (author), Jonker, C.M. (author)In the context of human-agent interaction, we see the emergence of computational artefacts that display hybridity because they can be experienced as tools and agents. In this paper we propose a tool-agent spectrum as an analytical lens that uses ‘intention’ as a central concept. This spectrum aims to clarify how a computational object can change...conference paper 2020
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Simons, L.P.A. (author), van den Heuvel, Wouter A.C. (author), Jonker, C.M. (author)WhatsApp was evaluated as group support tool for a high impact healthy lifestyle intervention, with 11 young professionals. Users valued the WhatsApp group as an attractive social support addition to the existing eTools and personal coaching. Based on preliminary results: 1) the WhatsApp group generated higher participation than most other...journal article 2020
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Schrijvers, P.J.C. (author), Jonker, H.J.J. (author), de Roode, S.R. (author), Kenjeres, S. (author)This study investigated the surface temperature, air temperature and mean radiant temperature inside an idealized 2D street geometry during daytime. The goal was to unravel the relative impact of radiative transfer, heat conduction and ventilation to the urban heat budget. A building-resolving simulation model has been used, which represents...journal article 2020
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Li, X. (author), Rozendaal, M.C. (author), Jansen, K.M.B. (author), Jonker, C.M. (author), Vermetten, Eric (author)We propose an approach to designing smart wearables that act as partners to help people cope with stress in daily life. Our approach contributes to the developing field of smart wearables by addressing how technological capabilities can be designed to establish partnerships that consider the person, the situation, and the appropriate type of...journal article 2020
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Bortolameotti, Riccardo (author), Van Ede, Thijs (author), Continella, Andrea (author), Hupperich, Thomas (author), Everts, Maarten H. (author), Rafati, Reza (author), Jonker, Willem (author), Hartel, P.H. (author), Peter, Andreas (author)Passive application fingerprinting is a technique to detect anomalous outgoing connections. By monitoring the network traffic, a security monitor passively learns the network characteristics of the applications installed on each machine, and uses them to detect the presence of new applications (e.g., malware infection). In this work, we...conference paper 2020
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Ebrahimi Fard, A. (author), Mercuur, R.A. (author), Dignum, M.V. (author), Jonker, C.M. (author), van de Walle, B.A. (author)Rumour is a collective emergent phenomenon with a potential for provoking a crisis. Modelling approaches have been deployed since five decades ago; however, the focus was mostly on epidemic behaviour of the rumours which does not take into account the differences between agents. We use social practice theory to model agent decision-making in...conference paper 2020
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Cavalcante Siebert, L. (author), Mercuur, R.A. (author), Dignum, M.V. (author), van den Hoven, M.J. (author), Jonker, C.M. (author)Autonomous agents (AA) will increasingly be interacting with us in our daily lives. While we want the benefits attached to AAs, it is essential that their behavior is aligned with our values and norms. Hence, an AA will need to estimate the values and norms of the humans it interacts with, which is not a straightforward task when solely...conference paper 2020
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van der Waa, J.S. (author), van Diggelen, Jurriaan (author), Cavalcante Siebert, L. (author), Neerincx, M.A. (author), Jonker, C.M. (author)Artificially intelligent agents will deal with more morally sensitive situations as the field of AI progresses. Research efforts are made to regulate, design and build Artificial Moral Agents (AMAs) capable of making moral decisions. This research is highly multidisciplinary with each their own jargon and vision, and so far it is unclear...conference paper 2020
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Wolter, R.C. (author), Hindriks, K.V. (author), Samur, Dalya (author), Jonker, C.M. (author)The commercial availability of robots and voice-operated smart devices such as Alexa or Google Home have some companies wondering whether they can replace some current human interactions by using these devices. One such area of interaction is at the reception desk. While both platforms can offer the necessary interaction features to take on...conference paper 2020