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Klein, K.T. (author), Uysal, F. (author), Cuenca, M.C. (author), Otten, M.P. (author), de Wit, J.J. (author)Accurate motion estimation is a challenging problem for agile radar platforms, even when state of the art Inertial Navigation Sensors (INSs) are used. However, it is an important problem to solve as it can have a large impact on the performance of radar modes such as Synthetic Aperture Radar (SAR). This study addresses the motion estimation...article 2022
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van Deventer, M.O. (author), de Wit, J.J. (author), Vanattenhoven, J. (author), Guelbahar, M. (author)This paper presents insights and learning experiences on the development of an integrated group recommender system in the European FP7 HBBNext research project. The system design incorporates insights from user research and evaluations, media industry players, and European HbbTV standardization efforts. Important differences were found between...conference paper 2013
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Bouma, H. (author), Azzopardi, G. (author), Spitters, M.M. (author), de Wit, J.J. (author), Versloot, C.A. (author), van der Zon, R.W.L. (author), Eendebak, P.T. (author), Baan, J. (author), ten Hove, R.J.M. (author), van Eekeren, A.W.M. (author), ter Haar, F.B. (author), den Hollander, R.J.M. (author), van Huis, R.J. (author), de Boer, M.H.T. (author), van Antwerpen, G. (author), Broekhuijsen, B.J. (author), Daniele, L.M. (author), Brandt, P. (author), Schavemaker, J.G.M. (author), Kraaij, W. (author), Schutte, K. (author)We describe the TNO system and the evaluation results for TRECVID 2013 Multimedia Event Detection (MED) and instance search (INS) tasks. The MED system consists of a bag-of-word (BOW) approach with spatial tiling that uses low-level static and dynamic visual features, an audio feature and high-level concepts. Automatic speech recognition (ASR)...conference paper 2013
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Schutte, K. (author), Bomhof, F.W. (author), Burghouts, G.J. (author), van Diggelen, J. (author), Hiemstra, P. (author), van 't Hof, J. (author), Kraaij, W. (author), Pasman, K.H.W. (author), Smith, A.J.E. (author), Versloot, C.A. (author), de Wit, J.J. (author)More and more sensors are getting Internet connected. Examples are cameras on cell phones, CCTV cameras for traffic control as well as dedicated security and defense sensor systems. Due to the steadily increasing data volume, human exploitation of all this sensor data is impossible for effective mission execution. Smart access to all sensor data...conference paper 2013
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van Deventer, M.O. (author), de Wit, J.J. (author), Gerrits, B.M. (author), Guelbahar, M. (author), Probst, M. (author)The European FP7 project HBB-Next envisions a future in which connected televisions and hybrid broadcast broadband (HbbTV) offer consumers access to large amounts of scheduled and on demand content. Companion screens provide access to auxiliary content that may, or may not, be related to the content presented on the main screen. The watching...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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Schavemaker, J.G.M. (author), Versloot, C.A. (author), de Wit, J.J. (author), Kraaij, W. (author)The TNO instance search submission to TRECVID 2012 consisted of four different runs: two are using an exhaustive SIFT key-point search, and two are using an extended bag-of-visual-words approach.conference paper 2012