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De Weerdt, M.M. (author), Zhang, Y. (author), Klos, T. (author)This paper proposes a new variant of the task allocation problem, where the agents are connected in a social network and tasks arrive at the agents distributed over the network. We show that the complexity of this problem remains NPhard. Moreover, it is not approximable within some factor. We develop an algorithm based on the contract-net...conference paper 2007
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Verwer, S.E. (author), De Weerdt, M.M. (author), Witteveen, C. (author)We describe an algorithm for learning simple timed automata, known as real-time automata. The transitions of real-time automata can have a temporal constraint on the time of occurrence of the current symbol relative to the previous symbol. The learning algorithm is similar to the redblue fringe state-merging algorithm for the problem of learning...conference paper 2007
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Steenhuisen, J.R. (author), De Weerdt, M.M. (author), Witteveen, C. (author)In crisis response, hierarchical organizations are being replaced by dynamic assemblies of autonomous agents that promise more agility. However, these autonomous agents might cause a decrease in effectiveness when individually constructed plans for moderately-coupled tasks are not jointly feasible. Existing coordination techniques can be applied...conference paper 2007
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Slysz, W. (author), Wegrzecki, M. (author), Bar, J. (author), Grabiec, P. (author), Gorska, M. (author), Reiger, E. (author), Dorenbos, S. (author), Zwiller, V. (author), Milostnaya, I. (author), Minaeva, O. (author)We have fabricated fiber-coupled superconducting single-photon detectors (SSPDs), designed for quantum-correlationtype experiments. The SSPDs are nanostructured (~100-nm wide and 4-nm thick) NbN superconducting meandering stripes, operated in the 2 to 4.2 K temperature range, and known for ultrafast and efficient detection of visible to...conference paper 2007
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Toussaint, M.H. (author)In the last few years the timber gridshell has gained popularity. Recently two gridshells were constructed: the Weald and Downland gridshell in 2002 and the Savill Garden gridshell in 2006. These structures are examples from which the benefits of timber gridshells become apparent. A gridshell can display elegance and style, with its slender ribs...master thesis 2007
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Swane, H.A.J. (author)This study investigates the possibility to build and operate a Tidal Power Plant (TPP) in Saemangeum in South Korea. The objective of the study is to investigate if a TPP would be technically possible and economically feasible for Saemangeum. This has resulted in a design for a Tidal Power Plant. All decisions were made taking into account...master thesis 2007
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- Stekelenburg, D.T. (author) master thesis 2007
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Boeters, A.G. (author)In 1997 cracks were found in the relatively new movable part of the Van Brienenoord bridge, a repair method for steel orthotropic bridges has searched for ever since. For fixed bridges a solution was found: the steel deck plate is overlayed with a concrete layer with a thickness varying between 50mm and 120mm and on top of the repair layer a new...master thesis 2007
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Hindriks, C.O.H. (author)A seismic survey is conducted to acquire data which can be used to image the earth's discontuinities. On land, the near surface disturb the data severely, due to its strongly heterogeneous character. Commonly used methods use single trace methods to correct for these near surface effects based on simplified models and are known as 'statics',...doctoral thesis 2007
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Botsuioruto, F. (author), Van Turnhout, M. (author), Marinescu, O.E. (author)PROBLEM TO BE SOLVED: To provide a method of designing a projection system for a lithography projection apparatus, to provide a lithography apparatus comprising the projection system, and to provide a method for manufacturing a device by using the projection system. ; SOLUTION: In the first place, local optimization of the projection system is...patent 2007
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Den Hollander, R.J.M. (author)This thesis treats efficient estimation algorithms for the epipolar geometry, the model underlying two views of the same scene or object. The epipolar geometry is computed from image correspondences that are found by local feature matching. These correspondences are used to calculate the fundamental matrix, which is the mathematical...doctoral thesis 2007
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- Zevenbergen, J.A. (author), Ploeger, H.D. (author) conference paper 2007
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- conference 2007
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- Zevenbergen, J.A. (author) conference paper 2007
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McGahey, C. (author)Research output 5 includes the review of existing DSS tool in the UK.report 2007
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Jambak, M.I. (author)Large amounts of data, information and knowledge are used during a design process. And it is proven from past researches that the absence of context is one of the reasons of the difficulties of utilizing data, information and knowledge in a design. This research work explored the concept of context that has been used in various domains and...doctoral thesis 2007
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- Ploeger, H.D. (author) conference paper 2007
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- Ploeger, H.D. (author) conference paper 2007
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Hinnen, K. (author), Verhaegen, M.H.G. (author), Doelman, N. (author)A recently proposed data-driven H2-optimal control approach is demonstrated on a laboratory setup. Most adaptive optics (AO) systems are based on a control law that neglects the temporal evolution of the wavefront. The proposed control approach is able to exploit the spatiotemporal correlation in the wavefront without assuming any form of...journal article 2007
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Coolen, M.J.L. (author), Volkman, J.K. (author), Abbas, B. (author), Muyzer, G. (author), Schouten, S. (author), Sinninghe Damsté, J.S. (author)The 18S ribosomal DNA (rDNA) isolated from sulfidic Holocene sediments and particulate organic matter in the water column of the stratified Small Meromictic Basin (SMB) in Ellis Fjord (eastern Antarctica) was analyzed to identify possible biological sources of organic matter. Previous work had shown that the sediments contained numerous diatom...journal article 2007