Searched for: department:"Mathematics"
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Speleers, Hendrik (author), Toshniwal, D. (author)
In this paper, we describe a general class of C<sup>1</sup> smooth rational splines that enables, in particular, exact descriptions of ellipses and ellipsoids — some of the most important primitives for CAD and CAE. The univariate rational splines are assembled by transforming multiple sets of NURBS basis functions via so-called design...
journal article 2021
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Wang, Zhijie (author), Zhai, Qingqing (author), Chen, P. (author)
The performance of units in the same batch can exhibit considerable heterogeneity due to the variation in the raw materials and fluctuation in the manufacturing process. For products suffering performance degradation in their use, such heterogeneity often results in an increase in the dispersion of the degradation paths of units in a...
journal article 2021
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Alsenafi, Abdulaziz (author), Barbaro, Alethea (author)
We develop an agent-based model on a lattice to investigate territorial development motivated by markings such as graffiti, generalizing a previously-published model to account for K groups instead of two groups. We then analyze this model and present two novel variations. Our model assumes that agents’ movement is a biased random walk away...
journal article 2021
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Le, Hoang Anh (author), Lambrechts, Jonathan (author), Ortleb, Sigrun (author), Gratiot, Nicolas (author), Deleersnijder, E.L.C. (author), Soares-Frazão, Sandra (author)
The accurate simulation of wetting–drying processes in floodplains and coastal zones is a challenge for hydrodynamic modelling, especially for long time simulations. Indeed, dedicated numerical procedures are generally time-consuming, instabilities can occur at the wet/dry front, rapid transition of wet/dry interface and mass conservation are...
journal article 2020
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Groot, K.J. (author), Schuttelaars, H.M. (author)
The initial stage of the laminar–turbulent transition of semi-infinite flows can be characterized as either an absolute or convective instability, naturally associated with localized wave packets. A convective instability is directly linked to an absolute instability in a different reference frame. Therefore, our aim is to determine the...
journal article 2020
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Möller, M. (author), Jaeschke, Andrzej (author)
High-performance computing platforms are becoming more and more heterogeneous, which makes it very difficult for researchers and scientific software developers to keep up with the rapid changes on the hardware market. In this paper, the open-source project FDBB (Fluid Dynamics Building Blocks) is presented, which eases the development of...
conference paper 2020
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Jongbloed, G. (author), Mc Garrity, K.S. (author), Sietsma, J. (author)
Kernel estimators are proposed for estimating the cumulative distribution functions and the probability density functions of several quantities of interest in a stereological oriented cylinder model. This oriented cylinder model was developed to represent anisotropic microstructural features in materials. The asymptotic properties of these...
journal article 2020
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Mészáros, L. (author), van der Meulen, F.H. (author), Jongbloed, G. (author), El Serafy, G.Y.H. (author)
Available climate change projections, which can be used for quantifying future changes in marine and coastal ecosystems, usually consist of a few scenarios. Studies addressing ecological impacts of climate change often make use of a low- (RCP2.6), moderate- (RCP4.5) or high climate scenario (RCP8.5), without taking into account further...
journal article 2020
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Van Dorp, I. N. (author), Leegwater, A. J. (author), Alberink, I. (author), Jongbloed, G. (author)
In the so-called rare type match problem, the discrete characteristics of a crime stain have not been observed in the set of background material. To assess the strength of evidence, two competing statistical hypotheses need to be considered. The formulation of the hypotheses depends on whichidentification of source question is of interest ...
journal article 2020
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Velthoen, J.J. (author), Cai, J. (author), Jongbloed, G. (author), Schmeits, Maurice (author)
Aiming to estimate extreme precipitation forecast quantiles, we propose a nonparametric regression model that features a constant extreme value index. Using local linear quantile regression and an extrapolation technique from extreme value theory, we develop an estimator for conditional quantiles corresponding to extreme high probability...
journal article 2019
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van Mill, J. (author)
Editorial
contribution to periodical 2019
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Kool, Fréderique Suzanne (author), van Dorp, I. (author), Bolck, Annabel (author), Leegwater, Anna Jeannette (author), Jongbloed, G. (author)
In the evaluation of measurements on characteristics of forensic trace evidence, Aitken and Lucy (2004) model the data as a two-level model using assumptions of normality where likelihood ratios are used as a measure for the strength of evidence. A two-level model assumes two sources of variation: the variation within measurements in a group ...
review 2019
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el Bouhaddani, S. (author), Uh, Hae Won (author), Hayward, Caroline (author), Jongbloed, G. (author), Houwing-Duistermaat, Jeanine (author)
With a rapid increase in volume and complexity of data sets, there is a need for methods that can extract useful information, for example the relationship between two data sets measured for the same persons. The Partial Least Squares (PLS) method can be used for this dimension reduction task. Within life sciences, results across studies are...
journal article 2018
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Mészáros, L. (author), van der Meulen, F.H. (author), Jongbloed, G. (author), El Serafy, G.Y.H. (author)
Traditionally, quantifying climate change induced uncertainty in ecological indicators requires stochastic simulation with a chain of physically-based models describing various processes such as hydrodynamics, waves, sediment transport and ecology. Such Monte Carlo based simulation on the entire model chain, especially with large sample size, is...
abstract 2018
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Roth, Martin (author), Jongbloed, G. (author), Buishand, Adri (author)
The generalized Pareto distribution (GPD) is often used in the statistical analysis of climate extremes. For a sample of independent and identically distributed observations, the parameters of the GPD can be estimated by the maximum likelihood (ML) method. In this paper, we drop the assumption of identically distributed random variables. We...
journal article 2018
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Turşucu, S. (author), Spandaw, J.G. (author), Flipse, S.M. (author), Jongbloed, G. (author), de Vries, M.J. (author)
Senior pre-university education (SPE) students experience difficulties applying mathematics to physics. This paper reports the outcome of an online explorative quantitative study of teachers' belief systems about improving transfer of algebraic skills from mathematics into physics, conducted among 503 mathematics and physics teachers working...
journal article 2018
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el Bouhaddani, S. (author), Uh, Hae-Won (author), Jongbloed, G. (author), Hayward, Caroline (author), Klarić, Lucija (author), Kielbasa, Szymon M. (author), Houwing-Duistermaat, Jeanine (author)
Background: With the exponential growth in available biomedical data, there is a need for data integration methods that can extract information about relationships between the data sets. However, these data sets might have very different characteristics. For interpretable results, data-specific variation needs to be quantified. For this task,...
journal article 2018
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Markensteijn, G.C. (author)
Floods are a big problem for Jakarta; the capital of Indonesia is subsiding below mean sea level and floods will become more frequent. Flood protection and measures against subsidence are, therefore, of high importance to Jakarta’s government. One of the options they are studying is a great sea wall to regulate the water levels in Jakarta Bay....
master thesis 2017
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Rietberg, E.N. (author)
In this thesis, we look into two different researches with the same basis; information centric networking. Enhanced resilience is one of the often mentioned advantages of this paradigm shift in internet networks. However, this resilience is not quantified in literature so far. In this thesis the information resilience of hierarchical ICN...
master thesis 2017
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Dang, T.N. (author)
In this thesis we study the optimal role assignment in jury voting. Jurors have to decide between two states of nature. Jurors cannot directly observe the state of nature, but only a noisy signal, that is correlated with the true state of nature. Some jurors are better than the other, and higher ability jurors receive signals that more likely...
master thesis 2017
Searched for: department:"Mathematics"
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