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Debacker, Wim (author), Manshoven, Saskia (author), Peters, Martijn (author), Ribeiro, Andre (author), De Weerdt, Yves (author)The built environment is considered as a key sector in which circular economy can be implemented. Within the H2020 project “Building as Material Banks” (BAMB), two innovative solutions are being forward to support this transition: i.e. Materials Passports and Reversible Building Design Protocols. Based on desk research and interviews with...conference paper 2017
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De Weerdt, B.J. (author)This study has as main objective to `make recommendations for improvement of the objective evaluation of the effectiveness of the Sand Engine'. The Frame of Reference methodology, a tool developed by Van Koningsveld (2003), is used to map the evaluation of effectiveness. This approach is used descriptively as well as prescriptively. A...master thesis 2015
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Morales-España, G. (author), Davidson, M. (author), Ramírez-Elizondo, L. (author), De Weerdt, M.M. (author)This document is an online companion for the paper "Robust Unit Commitment with Dispatchable Wind: An LP Reformulation of the Second-stage".report 2015
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De Weerdt, D. (author)Due to the crisis, developers and housing associations are no longer willing to invest money in large scale dwelling projects. Collective Private Commissioning can be an answer to this problem. This concept is based on private investors, getting together in building groups which can finance a residential building that they will occupy when it’s...master thesis 2014
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Heineke, D. (author), Volbeda, E. (author), De Weerdt, B. (author), De Wit, F. (author)Due to frequently occurring storms, like hurricanes and cold fronts, the coasts around the Mexican port city Veracruz suffer from erosion. This is most severe at the beaches of Boca del Rio just south of the city of Veracruz. Here, small beaches can be found between large groynes. These groynes block the southward littoral drift significantly...student report 2014
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Polevoy, G. (author), Trajanovski, S. (author), De Weerdt, M.M. (author)Shared effort games model people's contribution to projects and sharing the obtained profits. Those games generalize both public projects like writing for Wikipedia, where everybody shares the resulting benefits, and all-pay auctions such as contests and political campaigns, where only the winner obtains a profit. In ?-equal sharing (effort)...conference paper 2014
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Ströhle, P. (author), Gerding, E.H. (author), De Weerdt, M.M. (author), Stein, S. (author), Robu, V. (author)We design new algorithms for the problem of allocating uncertain, flexible, and multi-unit demand online given uncertain supply, in order to maximise social welfare. The algorithms can be seen as extensions of the expectation and consensus algorithms from the domain of online scheduling. The problem is especially relevant to the future smart...conference paper 2014
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Scharpff, J.C.D. (author), Spaan, M.T.J. (author), Volker, L. (author), De Weerdt, M.M. (author)Scheduling of infrastructural maintenance poses a complex multi-agent problem. Commonly a central authority is responsible for the quality and throughput of the infrastructure, while the actual maintenance is performed by multiple self-interested contractors. Not only does the central authority have to (economically) incentivise agents to...conference paper 2013
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Scharpff, J.C.D. (author), Spaan, M.T.J. (author), Volker, L. (author), De Weerdt, M.M. (author)Scheduling of infrastructural maintenance poses a complex multi-agent problem. Commonly a central authority is responsible for the quality and throughput of the infrastructure, while the actual maintenance is performed by multiple self-interested contractors. Not only does the central authority have to (economically) incentivise agents to...conference paper 2013
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Scharpff, J. (author), Spaan, M.T.J. (author), Volker, L. (author), De Weerdt, M.M. (author)We address efficient planning of maintenance activities in infrastructural networks, inspired by the real-world problem of servicing a highway network. A road authority is responsible for the quality, throughput and maintenance costs of the network, while the actual maintenance is performed by autonomous, third-party contractors. From a (multi...conference paper 2013
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- Scharpff, J. (author), Spaan, T.J. (author), Volker, L. (author), De Weerdt, M. (author) conference paper 2013
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De Weerdt, M.M. (author), Gerding, E.H. (author), Stein, S. (author), Robu, V. (author), Jennings, N.R. (author)En-route charging stations allow electric vehicles to greatly extend their range. However, as a full charge takes a considerable amount of time, there may be significant waiting times at peak hours. To address this problem, we propose a novel navigation system, which communicates its intentions (i.e., routing policies) to other drivers. Using...conference paper 2013
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Scharpff, J.C.D. (author), Spaan, M.T.J. (author), De Weerdt, M.M. (author)We study the planning of maintenance activities on public infrastructural networks – road networks, Internet, power grids, etc. – in contingent environments such that the negative impact on the network user is minimised. Traditional efforts hereto are mainly of a regulatory nature, whereas we propose charging the service-providers (agents)...conference paper 2012
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Volker, L. (author), Scharpff, J. (author), De Weerdt, M.M. (author), Herder, P.M. (author)Transportation networks are important public infrastructures because they enable economic and social activity. Trends in contracting the maintenance of such assets have caused a shift in governance from a public body to market-like arrangements and changed the roles and responsibilities among asset owner, asset manager and service providers....conference paper 2012
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Noroozian, A. (author), De Weerdt, M.M. (author), Witteveen, C. (author)The fundamental problem with P2P networks is that quality of service depends on altruistic resource sharing by participating peers. Many peers freeride on the generosity of others. Current solutions like sharing ratio enforcement and reputation systems are complex, exploitable, inaccurate or unfair at times. The need to design scalable...conference paper 2012
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Ketter, W. (author), Collins, J. (author), Reddy, P. (author), Flath, C. (author), De Weerdt, M.M. (author)This is the specification for the Power Trading Agent Competition for 2012 (Power TAC 2012). Power TAC is a competitive simulation that models a “liberalized” retail electrical energy market, where competing business entities or “brokers” offer energy services to customers through tariff contracts, and must then serve those customers by trading...report 2011
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Ten Thije, O. (author), Planken, L.R. (author), De Weerdt, M.M. (author)Efficient management of temporal constraints is important for temporal planning. During plan development, many solvers employ a heuristic-driven backtracking approach, over the course of which they maintain a so-called Simple Temporal Network (STN) of events and constraints. This paper presents the Vertex-IPPC algorithm, which efficiently...conference paper 2011
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- Planken, L.R. (author), De Weerdt, M.M. (author), Van der Krogt, R. (author) conference paper 2011
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Verwer, S.E. (author), De Weerdt, M.M. (author), Witteveen, C. (author)We develop a novel learning algorithm RTI for identifying a deterministic real-time automaton (DRTA) from labeled time-stamped event sequences. The RTI algorithm is based on the current state of the art in deterministic finite-state automaton (DFA) identification, called evidence-driven state-merging (EDSM). In addition to having a DFA structure...journal article 2011
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De Weerdt, E. (author), Van Kampen, E. (author), Chu, Q.P. (author), Mulder, J.A. (author)Trajectory optimization has been a large field of research for many years. The drawback is that for non-convex, constrained problems practically all available solvers cannot guarantee that the globally optimal trajectory is found. Interval analysis based solvers however can provide this guarantee. Interval analysis has been applied to trajectory...conference paper 2011