Searched for: subject%3A%22statistics%22
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Velthoen, J.J. (author)
In this thesis we develop several statistical methods to estimate high conditional quantiles to use for statistical post-processing of weather forecasts. We propose methodologies that combine theory from extreme value statistics and machine learning algorithms in order to estimate high conditional quantiles in large covariate spaces. In...
doctoral thesis 2022
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Li, W. (author)
Multi-phase metallic materials such as Advanced High-Strength Steels (AHSS) are of great importance in a wide variety of high-tech industries due to their higher strength compared to conventional (mild) forming steels. The higher strength leads to various advantages in weight, safety and environmental friendliness. In order to develop new AHHS...
doctoral thesis 2022
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Huisman, Pauline (author)
Latent profile analysis is a statistical modeling approach used to identify hidden subpopulations (i.e., latent profiles) within a population. These latent profiles are identified based on values of observed continuous variables, also known as profile indicators. While LPA is getting more popular in education sciences and psychology to group...
bachelor thesis 2022
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Victor Ryan, Victor (author)
In this thesis, we present simulation studies of a non-parametric estimator, proposed by Liebscher (2005). This estimator uses a well-known non-parametric estimator called kernel density estimator. Non-parametric estimation is used when the parametric distribution of a given dataset is unknown. This technique is then applied with an assumption...
bachelor thesis 2022
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Veldman, Frederik (author)
This thesis is concerned with finding the asymptotic distributions of linear spectral statistics of the nonlinear shrinkage estimator for large covariance matrices derived by Ledoit and Wolf (2012). It provides some new inferential procedures for large-dimensional data and shed some light on the power of the new statistical tests on the...
bachelor thesis 2022
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Hener, Jonas (author)
This thesis project investigates navigational aspects of the upcoming JUICE (JUpiter ICy moons Explorer) mission, which is expected to deliver valuable data products for the scientific study of the Jovian system, and the three Galilean moons Europa, Ganymede and Callisto in particular. One such data product comes from the 3GM radio science...
master thesis 2022
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Wijker, Alyssa (author)
In this report a new approach to (forensic) handwriting analysis is presented; score-based likelihood ratio (SLR) systems are employed and their quality of performance is studied. These systems compare elements of handwriting based on their characteristics and give an insight into the degree of uncertainty of the statement that two writings have...
bachelor thesis 2022
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Bellinga, Willem Jelle (author)
Mangrove is a coastal vegetation type primarily located in the tropical regions between 5 North and 5 South. This coastal vegetation is capable of reducing the force of incoming waves. This is a result of the obstruction created by the roots, stems and canopies against waves to propagate through. Because of this capability, mangrove vegetation...
master thesis 2022
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Barták, Patrik (author)
Causal machine learning deals with the inference of causal relationships between variables in observational datasets. <br/>For certain datasets, it is correct to assume a causal graph where information about unobserved confounders can only be obtained through noisy proxies, and CEVAE aims to address this case. <br/>The number of dimensions of...
bachelor thesis 2022
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Mulder, Jasper (author)
In this thesis, the repetition code for bit flip errors is examined. Based the stabilizer measurements outcome of a run of the repetition code, one does not know exactly which errors have occurred. Statistics can be used to estimate the probability of all possible error events. This probability estimation is investigated for simulated data...
bachelor thesis 2022
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Riveros Pavez, Alessia (author)
Empirical-statistical rainfall landslide initiation thresholds are popularly used for early warning systems to discriminate between the occurrence and non-occurrence of rainfall-induced landslides. However, the few studies that have derived landslide initiation thresholds for landslide-prone and data-scarce Rwanda rely solely on the limited in...
master thesis 2022
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Fuentes-Bargues, J. L. (author), Sánchez-Lite, A. (author), González-Gaya, C. (author), Rosales-Prieto, Victor Fco (author), Reniers, G.L.L.M.E. (author)
The metal sector encompasses a variety of economic activities, such as metallurgy and the manufacturing of metallic elements. These activities represent great diversity in production processes. Worker-related characteristics are particularly important in these processes and the accident rate. In view of the metal sector's importance and that the...
journal article 2022
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Nederkoorn, T. P. (author), Seyffert, Harleigh C. (author)
Very large waves, such as rogue waves, can be dangerous for ships and offshore structures. There is no consensus on the theoretical occurrence probability of these rogues and ocean measurements containing rogue waves are rare. This paper addresses the long-term occurrence probability of rogue waves using time-extreme (TE) and space–time...
journal article 2022
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Arbabi, Saeed (author), Seevinck, Peter (author), Weinans, H.H. (author), de, Pim A. (author), Sturkenboom, Joran (author), van Hamersvelt, Robbert W. (author), Foppen, Wouter (author), Arbabi, Vahid (author)
Diagnosis of ankle impingement is performed primarily by clinical examination, whereas medical imaging is used for severity staging and treatment guidance. The association of impingement symptoms with regional three-dimensional (3D) bone shape variaties visible in medical images has not been systematically explored, nor do we know the type...
journal article 2022
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Jiang, Quanxin (author), Morete Barbosa Bertolo, V. (author), Popovich, V. (author), Sietsma, J. (author), Walters, C.L. (author)
Thick section S690 QT steel is modelled with a modified multibarrier model that is based on the weakest-link mechanism. Segregation bands are modelled as discrete layers which have different grain size, yield properties, and local fracture parameters from outside of the bands. The results show that embrittlement from segregation bands can...
journal article 2022
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Kirchner, K. (author), Bolin, David (author)
Optimal linear prediction (aka. kriging) of a random field {Z(x)} x∈X indexed by a compact metric space (X, dX ) can be obtained if the mean value function m: X →R and the covariance function ∂: X × X →R of Z are known. We consider the problem of predicting the value of Z(x*) at some location x*∈ X based on observations at locations {xj }nj ...
journal article 2022
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Zhang, Hongzhi (author), He, Yanchen (author), Wang, Chuan (author), Guan, Yanhua (author), Ge, Zhi (author), Sun, Renjuan (author), Ling, Yifeng (author), Šavija, B. (author)
Carbide residue activated blast furnace slag is a relatively new kind of eco-friendly construction materials. This work addresses the design of foamed lightweight concrete as road embankment material using such material. A statistical mixture design approach was adopted to assess the influence of each ingredient as well as the interaction...
journal article 2022
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Sileryte, R. (author), Sabbe, A.L.P. (author), Bouzas, V. (author), Meister, K.R. (author), Wandl, Alex (author), van Timmeren, A. (author)
As appointed in the EU Circular Economy Action Plan, cities and regions in EU member countries start accompanying their circular economy strategies by monitoring frameworks, often called Circular Economy Monitors (CEM). Having the task to assess the performance towards the achievement of set targets and to steer decision-making, CEMs need to...
journal article 2022
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Rosin, T. R. (author), Kapelan, Z. (author), Keedwell, E. (author), Romano, M. (author)
Blockages are a major issue for wastewater utilities around the world, causing loss of service, environmental pollution, and significant cleanup costs. Increasing telemetry in combined sewer overflows (CSOs) provides the opportunity for near real-time data-driven modelling of wastewater networks. This paper presents a novel methodology,...
journal article 2022
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Zwicker, David (author), Laan, L. (author)
Phase separation has emerged as an essential concept for the spatial organization inside biological cells. However, despite the clear relevance to virtually all physiological functions, we understand surprisingly little about what phases form in a system of many interacting components, like in cells. Here we introduce a numerical method based...
journal article 2022
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