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Peeters, M.M.M. (author), van Diggelen, J. (author), van den Bosch, K. (author), Bronkhorst, A. (author), Neerincx, M.A. (author), Schraagen, J.M. (author), Raaijmakers, S. (author)
Within current debates about the future impact of Artificial Intelligence (AI) on human society, roughly three different perspectives can be recognised: (1) the technology-centric perspective, claiming that AI will soon outperform humankind in all areas, and that the primary threat for humankind is superintelligence; (2) the human-centric...
article 2020
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den Hollander, R.J.M. (author), Adhikari, A. (author), Tolios, I. (author), van Bekkum, M. (author), Bal, A. (author), Hendriks, S. (author), Kruithof, M.C. (author), Gross, D. (author), Jansen, N. (author), Perez, G. (author), Buurman, K. (author), Raaijmakers, S.A. (author)
conference paper 2020
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Gross, D. (author), Jansen, N. (author), Perez, G.A. (author), Raaijmakers, S. (author)
We give a formal verification procedure that decides whether a classifier ensemble is robust against arbitrary randomized attacks. Such attacks consist of a set of deterministic attacks and a distribution over this set. The robustness-checking problem consists of assessing, given a set of classifiers and a labelled data set, whether there exists...
conference paper 2020
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Raaijmakers, F. (author), Klein Velderman, M. (author)
This article presents results of an evaluation of two local initiatives to support preventive youth healthcare services. Youth mental health specialists were appointed by the municipalities of Nijmegen and Renkum with the aim of 1) strengthening collaboration within the social domain (i.e., school, youth mental healthcare, social team, general...
article 2020
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van Breemen, A.J.J.M. (author), Simon, M. (author), Tousignant, O. (author), Shanmugam, S. (author), van der Steen, J.L. (author), Akkerman, H.B. (author), Kronemeijer, A. (author), Ruetten, W. (author), Raaijmakers, R. (author), Alving, L. (author), Jacobs, J. (author), Malinowski, P.E. (author), de Roose, F. (author), Gelinck, G.H. (author)
A curved image sensor on plastic foil has been developed for cone beam computed tomography (CBCT) X-ray imaging. The image sensor of about 6 × 8 cm2 size has been built on a thin polyimide foil with an indium gallium zinc oxide (IGZO) backplane and an organic photodetectors (OPD) frontplane. A flexible cesium iodide (CsI) scintillator has been...
article 2020
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Meyer-Vitali, A.P. (author), Bakker, R.M. (author), van Bekkum, M.A. (author), de Boer, M. (author), Burghouts, G. (author), van Diggelen, J. (author), Dijk, J. (author), Grappiolo, C. (author), de Greeff, J. (author), Huizing, A.G. (author), Raaijmakers, S. (author)
Hybrid Artificial Intelligence combines the best of two worlds: the power of recent advances in deep learning with the possibility to explicitly model human knowledge in connected systems. Together, this new generation of AI becomes more controllable, explainable and fair, in line with European norms and values.
report 2019
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van der Waa, J. (author), van Diggelen, J. (author), Neerincx, M. (author), Raaijmakers, S. (author)
End-users of machine learning-based systems benefit from measures that quantify the trustworthiness of the underlying models. Measures like accuracy provide for a general sense of model performance, but offer no detailed information on specific model outputs. Probabilistic outputs, on the other hand, express such details, but they are not...
conference paper 2018
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Raaijmakers, S. (author), Brewster, C. (author)
conference paper 2018
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Raaijmakers, S.A. (author), Sappelli, M. (author), Kraaij, W. (author)
In this short paper, we address the interpretability of hidden layer representations in deep text mining: deep neural networks applied to text mining tasks. Following earlierwork predating deep learning methods, we exploit the internal neural network activation (latent) space as a source for performing k-nearest neighbor search, looking for...
conference paper 2017
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de Boer, M.H.T. (author), Bouma, H. (author), Kruithof, M.C. (author), ter Haar, F.B. (author), Fischer, N.M. (author), Hagendoorn, L.K. (author), Joosten, B. (author), Raaijmakers, S. (author)
The information available on-line and off-line, from open as well as from private sources, is growing at an exponential rate and places an increasing demand on the limited resources of Law Enforcement Agencies (LEAs). The absence of appropriate tools and techniques to collect, process, and analyze the volumes of complex and heterogeneous data...
conference paper 2017
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Gelinck, G.H. (author), Kumar, A. (author), Moet, D. (author), van der Steen, J.L.P.J. (author), van Breemen, A.J.J.M. (author), Shanmugam, S. (author), Langen, A. (author), Gilot, J. (author), Groen, W.A. (author), Andriessen, H.A.J.M. (author), Simon, M. (author), Ruetten, W. (author), Douglas, A.U. (author), Raaijmakers, R. (author), Malinowski, P.E. (author), Myny, K. (author)
We made and characterized an X-ray detector on a 25-ìm-thick plastic substrate that is capable of medicalgrade performance. As an indirect conversion flat panel detector, it combined a standard scintillator with an organic photodetector (OPD) layer and oxide thin-film transistor backplane. Using solution-processed organic bulk heterojunction...
article 2016
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Kumar, A. (author), Moet, D. (author), van der Steen, J.L. (author), Tripathi, A.K. (author), Rodriguez, F.G. (author), Maas, J. (author), Simon, M. (author), Reutten, W. (author), Douglas, A. (author), Raaijmakers, R. (author), Malinowski, P.E. (author), Myny, K. (author), Shafique, U. (author), Andriessen, R. (author), Heremans, P. (author), Gelinck, G.H. (author)
We demonstrate organic imaging sensor arrays fabricated on flexible plastic foil with the solution processing route for both photodiodes and thin film transistors. We used the photovoltaic P3HT:PCBM blend for fabricating the photodiodes using spin coating and pentacene as semiconductor material for the TFTs. Photodiodes fabricated with P3HT:PCBM...
conference paper 2014
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Raaijmakers, S.F. (author), Steel, F.W. (author), de Goede, M. (author), van Wouwe, N.C. (author), van Erp, J.B.F. (author), Brouwer, A.M. (author)
High heart rate variability (HRV) and low skin conductance level (SCL) have been associated with low levels of stress. Biofeedback - providing an individual with online information about his or her own physiological state – may help to change these signals in the desired direction and therewith improve an individual’s physical or mental...
conference paper 2013
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Bessems, K.M.H.H. (author), van Assema, P. (author), Martens, M.K. (author), Paulussen, T.G.W.M. (author), Raaijmakers, L.G.M. (author), de Rooij, M. (author), de Vries, N.K. (author)
BACKGROUND: Krachtvoer is a Dutch healthy diet programme for prevocational schools, developed in 2001 and revised for a broader target group in 2007, based on the findings of an evaluation of the first version. The goal of this study was to report on the short- and longer-term total and subgroup effects of the revised programme on students'...
article 2012
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Bouma, H. (author), Raaijmakers, S.A. (author), Halma, A.H.R. (author), Wedemeijer, H. (author)
Many threats in the real world can be related to activity of persons on the internet. Internet surveillance aims to predict and prevent attacks and to assist in finding suspects based on information from the web. However, the amount of data on the internet rapidly increases and it is time consuming to monitor many websites. In this paper, we...
conference paper 2012
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Boertjes, E.M. (author), Gerrits, B.M. (author), Kooij, R.E. (author), van Maanen, P.P. (author), Raaijmakers, S.A. (author), de Wit, J.J. (author)
In this paper we describe the development of a model for measuring consumer trust in certain topics on the basis of social media. Specifically, we propose a model for trust that takes into account both textually expressed sentiment and source authority, and illustrate it on a specific case: the iCloud cloud computing service of Apple and its...
conference paper 2012
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Kumar, A. (author), Moet, D. (author), van der Steen, J.L. (author), van Breemen, A.J.J.M. (author), Shanmugam, S. (author), Gilot, J. (author), Andriessen, H.A.J.M. (author), Matthias, S. (author), Ruetten, W. (author), Douglas, A. (author), Raaijmakers, R. (author), Malinowski, P.E. (author), Myny, K. (author), Gelinck, G.H. (author)
We demonstrate high performance X-ray imaging detectors on foil suitable for medical grade X-ray imaging applications. The detectors are based on solution-processed organic photodiodes forming bulk-heterojunctions from photovoltaic donor and acceptor blend. The organic photodiodes are deposited using an industrially compatible slot die coating...
conference paper 2011
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Schavemaker, J.G.M. (author), Doets, P.J. (author), Raaijmakers, S. (author), van Staalduinen, M. (author), Kraaij, W. (author)
conference paper 2011
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Koldijk, S.J. (author), van Staalduinen, M. (author), Raaijmakers, S.A. (author), van Rooij, I. (author), Kraaij, W. (author)
With an increased societal focus on a sustainable economy and a healthy population, well-being of knowledge workers has become an important topic. This paper investigates techniques to support a knowledge worker to manage his well-being. A possible solution is to monitor the workers’ behaviour and use this information for giving feedback as soon...
conference paper 2011
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Vonder, M.R. (author), van der Waaij, B.D. (author), Zwier, E. (author), Boertjes, E.M. (author), Oostveen, J.C. (author), Raaijmakers, S.A. (author), Schavemaker, J.G.M. (author), Schutte, K. (author), Meulenhoff, P.J. (author), van der Mark, W. (author)
Door de voortschrijdende technologische ontwikkelingen van sensor technologie en de groeiende complexiteit van onze samenleving, is er een duidelijke behoefte ontstaan om (meer) inzicht te krijgen in bestaande situaties en/of objecten. Om te voorkomen dat er een overload aan sensor data ontstaat is automatische ondersteuning van de interpretatie...
report 2011
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