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Jonker, L. (author), Van der Zaag, P. (author), Gumbo, B. (author), Rockström, J. (author), Love, D. (author), Savenije, H.H.G. (author)This paper reports the experience of a regional network of academic departments involved in water education that started as a project and evolved, over a period of 12 yr, into an independent network organisation. The paper pursues three objectives. First, it argues that it makes good sense to organise postgraduate education and research on water...journal article 2012
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Pommeranz, A. (author), Detweiler, C. (author), Wiggers, P. (author), Jonker, C. (author)Explicitly considering human values in the design process of socio-technical systems has become a responsibility of designers. It is, however, challenging to design for values because (1) relevant values must be identified and communicated between all stakeholders and designers and (2) stakeholders’ values differ and trade-offs must be made. We...journal article 2012
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Van der Zwaan, J.M. (author), Geraerts, E. (author), Dignum, V. (author), Jonker, C.M. (author)People are able to comfort others by talking about their problems. In our research, we are exploring whether computers can provide social support in a similar manner. Recently, we proposed a design for an empathic virtual buddy that supports victims of cyberbullying. To validate our approach in providing social support and to gather feedback...book chapter 2012
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Van der Zwaan, J.M. (author), Dignum, V. (author), Jonker, C.M. (author)In everyday life, people frequently talk to others to help them deal with negative emotions. To some extent, everybody is capable of comforting other people, but so far conversational agents are unable to deal with this type of situation. To provide intelligent agents with the capability to give emotional support, we propose a domain-independent...conference paper 2012
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Van der Zwaan, J.M. (author), Dignum, V. (author), Jonker, C.M. (author)Recently, we proposed a dialogue model for social support. To validate this model, we analyzed 23 real world chat conversations. After some adjustments, the dialogue sequence patterns specified in the model cover 87.4% of the data. Based on this result, we conclude that the dialogue model accurately describes comforting conversations. Next, the...conference paper 2012
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Lenseigne, B.A.J. (author), Van Breda, E.C.C. (author), Jonker, P.P. (author)A method of decomposing an image or video into a plurality of components. The method comprises: obtaining (10) an intensity signal of the image or video; and decomposing (30) the intensity signal into a component representing the three-dimensional structure shape of one or more objects in the scene and at least one other component. Also provided...patent 2013
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- Jonker, H.J.J. (author), Van Reeuwijk, M. (author), Sullivan, P.S. (author), Palton, E.G. (author) journal article 2013
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Aydogan, R. (author), Hindriks, K.V. (author), Jonker, C.M. (author)Much attention has been paid to bilateral negotiation in which the dispute is between only two parties. However, automated multilateral negotiation in which more than two negotiating parties need to reach a joint agreement, has received relatively less attention, even though such negotiations are required in many circumstances (e.g. a group of...conference paper 2013
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Van der Zwaan, J.M. (author), Dignum, M.V. (author), Jonker, C.M. (author)This paper presents a qualitative study of the supportive behavior of an Embodied Conversational Agent (ECA) that provides social support to cyberbullying victims. The results indicate that social support is conveyed. In addition, we demonstrate a method that can be utilized to evaluate embodied agents for vulnerable target audiences (e.g.,...conference paper 2013
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Van der Zwaan, J.M. (author), Dignum, M.V. (author), Jonker, C.M. (author)This paper presents a qualitative study of the supportive behavior of an Embodied Conversational Agent (ECA) that provides social support to cyberbullying victims. The results indicate that social support is conveyed. In addition, we demonstrate a method that can be utilized to evaluate embodied agents for vulnerable target audiences (e.g.,...conference paper 2013
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Aydogan, R. (author), Hindriks, K.V. (author), Jonker, C.M. (author)Much attention has been paid to bilateral negotiation in which the dispute is between only two parties. However, automated multilateral negotiation in which more than two negotiating parties need to reach a joint agreement, has received relatively less attention, even though such negotiations are required in many circumstances (e.g. a group of...conference paper 2013
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Schalkwijk, J. (author), Jonker, H.J.J. (author), Siebesma, A.P. (author)A modeling framework is developed that extends the mixed-layer model to steady-state cumulus convection. The aim is to consider the simplest model that retains the essential behavior of cumulus-capped layers. The presented framework allows for the evaluation of stationary states dependent on external parameters. These states are completely...journal article 2013
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Johnson, M. (author), Bradshaw, J.M. (author), Feltovich, P.J. (author), Jonker, C.M. (author), Van Riemsdijk, M.B. (author), Sierhuis, M. (author)Coactive Design is a new approach to address the increasingly sophisticated roles that people and robots play as the use of robots expands into new, complex domains. The approach is motivated by the desire for robots to perform less like teleoperated tools or independent automatons and more like interdependent teammates. In this article, we...journal article 2014
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Boing, S.J. (author), Jonker, H.J.J. (author), Nawara, W.A. (author), Siebesma, A.P. (author)Mixing processes in deep precipitating cumulus clouds are investigated by tracking Lagrangian particles in a large-eddy simulation. The trajectories of particles are reconstructed and the thermodynamic properties of cloud air are studied using mixing diagrams. The trajectory analysis shows that the in-cloud mixing is entirely dominated by...journal article 2014
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Elkhuizen, W.S. (author), Zaman, T. (author), Verhofstad, W. (author), Jonker, P.P. (author), Dik, J. (author), Geraedts, J.M.P. (author)Paintings are near-planar objects with material characteristics that vary widely. The fact that paint has a material presence is often overlooked, mostly because we often encounter these artworks in the form of two-dimensional reproductions. Capturing paintings in the third dimension is not only important for study, restoration and conservation,...conference paper 2014
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Perrin, V.E. (author), Jonker, H.J.J. (author)This study investigates the local flow characteristics near droplet-droplet collisions by means of direct numerical simulation of isotropic cloudlike turbulence. The key finding is that, generally, droplets do not collide where they preferentially concentrate. Preferential concentration is found to happen as expected in regions of low enstrophy ...journal article 2014
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Jacobs, E.J. (author), Broekens, J. (author), Jonker, C.M. (author)In this paper we present a mapping between joy, distress, hope and fear, and Reinforcement Learning primitives. Joy / distress is a signal that is derived from the RL update signal, while hope/fear is derived from the utility of the current state. Agent-based simulation experiments replicate psychological and behavioral dynamics of emotion...conference paper 2014
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Harbers, M. (author), Aydogan, R. (author), Jonker, C.M. (author), Neerincx, M.A. (author)Human teamwork can be supported by agent technology by providing each human team member with an agent that monitors, supports and advices the human. The agent can, for example, monitor the human’s workload, and share that information with (agents of) other team members so that work can be distributed effectively. However, though sharing...conference paper 2014
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Harbers, M. (author), Jonker, C.M. (author), Van Riemsdijk, M.B. (author)Teamwork between humans and intelligent systems gains importance with the maturing of agent and robot technology. In the social sciences, sharedness of mental models is used to explain and understand teamwork. To use this concept for developing teams that include agents, we propose contextsensitive sharedness criteria. These criteria specify how...conference paper 2014
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Dignum, V. (author), Jonker, C.M. (author), Prada, R. (author), Dignum, F. (author)Socially intelligent systems exhibit, understand, and reason about social behavior, in order to support people in their daily lives. We claim that a fundamental new approach based on social concepts is needed to build these socially intelligent systems. In this paper, we explore how the concepts of social practices and social identities can be...conference paper 2014