Searched for: subject%3A%22Statistical%255C%2Bmethods%22
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Eekhout, I. (author), van Buuren, S. (author), Visser, B. (author), Bink, M.C.A.M. (author), Huisman, A. (author)
Intensive longitudinal data can be used to explore important associations and patterns between various types of inputs and outcomes. Nonlinear relations and irregular measurement occasions can pose problems to develop an accurate model for these kinds of data. This paper focuses on the development, fitting and evaluation of a prediction model...
article 2023
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Gozzini, S.R. (author)
An anomalous flux of neutrinos produced in hypothetical annihilations or decays of dark matter inside a source would produce a signal observable with neutrino telescopes. As suggested by observations, a conspicuous amount of dark matter is believed to accumulate in the centre of our Galaxy, which is in neat visibility for the Mediterranean...
conference paper 2021
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Caiffi, B. (author), Garcia Soto, A. (author), Heijboer, A. (author), Kulikovskiy, V. (author), Muller, R.S. (author), Sanguineti, M. (author), on behalf of the KM3Net Collaboration, (author)
The identification of cosmic objects emitting high energy neutrinos could provide new insights about the Universe and its active sources. The existence of these cosmic neutrinos has been proven by the IceCube collaboration, but the big question of which sources these neutrinos originate from, remains unanswered. The KM3NeT detector for...
conference paper 2021
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de Weert, J. (author), Smedes, F. (author), Beeltje, H. (author), de Zwart, D. (author), Hamers, T. (author)
article 2020
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Mohammadi, M. (author), Atashin, A.A. (author), Hofman, W. (author), Tan, Y. (author)
Ontology alignment is widely used to find the correspondences between different ontologies in diverse fields. After discovering the alignments, several performance scores are available to evaluate them. The scores typically require the identified alignment and a reference containing the underlying actual correspondences of the given ontologies....
article 2018
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van Kampen, J. (author), van der Beek, D. (author), Steijn, W. (author), Groeneweg, J. (author), Guldenmund, F. (author)
Background. Organisations spend a considerable amount of time and effort on diagnosing and analysing risks within their organisation. In the area of occupational and process safety, a myriad of employee survey instruments is available. Many studies show that operational processes play an important role in an organisations overall safety. Yet, so...
article 2017
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Naus, H.W.L. (author), Zwamborn, A.P.M. (author)
The reception of electromagnetic signals depends on the polarisation matching of the transmitting and receiving antenna. The practical matching differs from the theoretical one because of the noise deterioration of the transmitted and eventually received electromagnetic field. In other applications, the polarisation parameters of the receiving...
article 2014
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Naus, H.W.L. (author), Zwamborn, A.P.M. (author)
To evaluate a system or platform on its electromagnetic compatibility generally involves the application of several EMC standards. In order to compare applicable standards, one needs a common denominator as a basis. In this study, EMC norms for electromagnetic radiation are assessed statistically. A framework describing stochastic...
article 2012
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Muntendam-Bos, A.G. (author), Fokker, P.A. (author), TNO Bouw en Ondergrond (author)
In an attempt to derive more information on the parameters driving compaction, this paper explores the feasibility of a method utilizing data on compaction-induced subsidence. We commence by using a Bayesian inversion scheme to infer the reservoir compaction from subsidence observations. The method's strength is that it incorporates all the...
article 2009
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Naus, H.W.L. (author), TNO Defensie en Veiligheid (author)
A selection of the literature on the statistical description of electromagnetic fields and complex cavities is concisely reviewed. Some essential concepts, for example, the application of the central limit theorem and the maximum entropy principle, are scrutinized. Implicit assumptions, biased choices of variables and constraints, and some...
article 2008
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Naus, H.W.L. (author), TNO Defensie en Veiligheid (author)
The emission of electromagnetic radiation by localized complex electric charge and current distributions is studied. A statistical formalism in terms of general dynamical multipole fields is developed. The appearing coefficients are treated as stochastic variables. Hereby as much as possible a priori physical knowledge is exploited. First...
article 2007
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Douwes, M. (author), de Kraker, H. (author), Blatter, B.M. (author), TNO Kwaliteit van Leven (author)
A long duration of computer use is known to be positively associated with Work Related Upper Extremity Disorders (WRUED). Self-report by questionnaire is commonly used to assess a worker's duration of computer use. The aim of the present study was to assess the validity of self-report and computer use software (WorkPace®) to assess the duration...
article 2007
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Ellegast, R. (author), Hamburger, R. (author), Keller, K. (author), Krause, F. (author), Groenesteijn, L. (author), Vink, P. (author), Berger, H. (author), TNO Kwaliteit van Leven (author)
In the paper a measuring system for the comparative posture and EMG analysis of office chairs is presented. With the system four specific dynamic office chairs that promote dynamic sitting and therefore aim to prevent musculoskeletal disorders (MSD), were analyzed in comparison to a reference chair in two different standardized tasks (intensive...
conference paper 2007
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van den Brink, C. (author), Frapporti, G. (author), Griffioen, J. (author), Zaadnoordijk, W.J. (author), TNO Bouw en Ondergrond (author)
Quantitative insight into the impact of land use on groundwater composition is vital for the sustainable management of aquifers, especially those situated in urban areas. The objective of the present study was to determine the effects of land use on groundwater composition throughout the Netherlands, relative to the influence of groundwater age,...
article 2007
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Defrance, J. (author), Salomons, E. (author), Noordhoek, I. (author), Heimann, D. (author), Plovsing, B. (author), Watts, G. (author), Jonasson, H. (author), Xuetao, Z. (author), Premat, E. (author), Schmich, I. (author), Aballea, F. (author), Baulac, M. (author), de Roo, F. (author), TNO Bouw en Ondergrond (author)
The Harmonoise reference model has been developed in order to predict long-term average sound levels in road and railway situations that are geometrically relatively simple but physically complex. The present paper describes all steps of calculations with this powerful model which includes several advanced numerical propagation methods to...
article 2007
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van Leeuwen, D.A. (author), Martin, A.F. (author), Przybocki, M.A. (author), Bouten, J.S. (author), TNO Defensie en Veiligheid (author)
In the past years, several text-independent speaker recognition evaluation campaigns have taken place. This paper reports on results of the NIST evaluation of 2004 and the NFI-TNO forensic speaker recognition evaluation held in 2003, and reflects on the history of the evaluation campaigns. The effects of speech duration, training handsets,...
article 2006
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Bijlsma, S. (author), Bobeldijk, I. (author), Verheij, E.R. (author), Ramaker, R. (author), Kochhar, S. (author), Macdonald, I.A. (author), van Ommen, B. (author), Smilde, A.K. (author), TNO Kwaliteit van Leven (author)
A large metabolomics study was performed on 600 plasma samples taken at four time points before and after a single intake of a high fat test meal by obese and lean subjects. All samples were analyzed by a liquid chromatography-mass spectrometry (LC-MS) lipidomic method for metabolic profiling. A pragmatic approach combining several well...
article 2006
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van Wijngaarden, S.J. (author), Verhave, J.A. (author), TNO Defensie en Veiligheid (author)
Traffic tunnels are generally hostile acoustic environments, both in terms of reverberation and ambient noise levels. Public address (PA) systems used to convey spoken warnings must meet stringent design requirements in order to produce sufficiently intelligible speech. To be able to predict PA system performance at tunnel design time, two di...
article 2006
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van Eijs, R.M.H.E. (author), Mulders, F.M.M. (author), Nepveu, M. (author), Kenter, C.J. (author), Scheffers, B.C. (author), TNO Bouw en Ondergrond (author)
Earthquakes induced by gas production are a social concern in the Netherlands. Over the last two decades, a total of about 350 such earthquakes have been recorded, with magnitudes ranging up to 3.5 on Richter's scale. The new Dutch mining law prescribes the operators to give a quantitative estimation of the likelihood of future seismic activity ...
article 2006
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TNO Bouw en Ondergrond (author), Vautard, R. (author), van Loon, M. (author), Schaap, M. (author), Bergström, R. (author), Bessagnet, B. (author), Brandt, J. (author), Builtjes, P.J.H. (author), Christensen, J.H. (author), Cuvelier, C. (author), Graff, A. (author), Jonson, J.E. (author), Krol, M. (author), Langner, J. (author), Roberts, P. (author), Rouil, L. (author), Stern, R. (author), Tarrasón, L. (author), Thunis, P. (author), Vignati, E. (author), White, L. (author), Wind, P. (author)
We examine whether seven state-of-the-art European regional air quality models provide daily ensembles of predicted ozone maxima that encompass observations. Using tools borrowed from the evaluation of ensemble weather forecasting, we analyze statistics of simulated ensembles of ozone daily maxima over an entire summer season. Although the model...
article 2006
Searched for: subject%3A%22Statistical%255C%2Bmethods%22
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