Browsing Matematisk institutt by Title
Now showing items 113-132 of 3747
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(Master thesis / Masteroppgave, 2020)We investigate how to exploit the properties of splines in order to plot curves and surfaces more efficiently than by using general plotting methods. The most elaborate methods use knot insertion and the convergence of the ...
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(Master thesis / Masteroppgave, 2012)In this thesis, we investigate the application of duality-based goal-oriented adaptive error control to the computation of shear stresses in biomedical flow problems. As a model problem, we consider the linear Stokes ...
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(Journal article / Tidsskriftartikkel / SubmittedVersion, 2019)We show that two approaches to equivariant deformation of C[Formula: see text]-algebras by actions of negatively curved Kählerian Lie groups, one based on oscillatory integrals and the other on quantizations maps defined ...
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(Research report / Forskningsrapport, 1979)
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(Research report / Forskningsrapport, 1963)
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
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Addressing collinearity and class imbalance in logistic regression for statistical fraud detection (Master thesis / Masteroppgave, 2019)We study how one can improve upon a logistic regression model for statistical fraud detection. Fraud data are often characterized by uneven class distributions as well as high dependence among covariates. With a focus on ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Administrative data may suffer from delays or mistakes in reporting. To adjust for the resulting measurement errors, it is often necessary to combine data from related sources, such as sample survey, administrative or ‘big’ ...
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Adjustment Coefficients and Exact Rational Expectations in Cointegrated Vector Autoregressive Models (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)In this article, we consider the cointegrated vector autoregressive model with adjustment parameters 𝛼 and cointegration vectors 𝛽.We discuss estimation of the model under the exact linear rational expectations, when we ...
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(Research report / Forskningsrapport, 1986)
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(Research report / Forskningsrapport, 2008)In the present paper we use discrete event simulation in order to analyze a binary monotone system of repairable components. Asymptotic statistical properties of such a system, e.g., the asymptotic system availability and ...
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(Master thesis / Masteroppgave, 2023)
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(Master thesis / Masteroppgave, 2023)
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(Doctoral thesis / Doktoravhandling, 2022)Renewable energy sources receive increasingly more attention as the world seeks cheap, reliable and less CO2-intensive ways of producing electricity. Wind is recognized as an important source of renewable energy and reaches ...
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(Master thesis / Masteroppgave, 2010)The aerodynamic effects on a wind turbine blade's tip region are investigated using the Lifting Line Theory (LLT). The LL equation is solved using two different approaches: the Fourier Method (FM) and the Simplification ...
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(Master thesis / Masteroppgave, 2021)Hovedmålet for denne oppgaven er å undersøke og sammenlikne to symmetriske krypteringsalgoritmer, AES og Kalyna. I oppgaven presenteres AES og Kalynas funksjoner og sammenlikner AES og Kalynas forskjellige funksjoner i ...
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(Research report / Forskningsrapport, 2000)
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(Research report / Forskningsrapport, 2000)
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(Journal article / Tidsskriftartikkel / PublishedVersion, 2007)Søndag 27. oktober 2002 ble Agder Akademi reetablert, som et moderne vitenskapsakademi. Markeringen skjedde i Arendal Rådhus på dagen 40 år etter at akademiet ble etablert. Agder Akademis medalje i sølv ble delt ut til ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Male sex and advanced age are associated with severe symptoms of COVID-19. Sex and age also exhibit substantial associations with genome-wide DNA methylation (DNAm) differences in humans. Using a random sample of Illumina ...