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Survival Analysis with Deep Recurrent Neural Network Model for Prediction of Credit Card Defaults
(Master thesis, 2021)I denne oppgaven brukes en dyp nevral nettverksmodell kombinert med konsepter fra levetidsanalyse på sekvensielle kredittkortdata med det formål å predikere tid til mislighold for kredittkortkunder. Personlige økonomiske ... -
Sustainable strategies for harvesting predators and prey in a fluctuating environment
(Peer reviewed; Journal article, 2021)The effects of harvest and fluctuating environment on inter-dependent predators and prey are complex and not well-known. We define a stochastic model where the predators and prey dynamically interact. The novelty of the ... -
Symmetric solutions of evolutionary partial differential equations
(Journal article; Peer reviewed, 2017)We show that for a large class of evolutionary nonlinear and nonlocal partial differential equations, symmetry of solutions implies very restrictive properties of the solutions and symmetry axes. These restrictions are ... -
Symmetries and multipeakon solutions for the modified two-component Camassa-Holm system
(Chapter, 2018)Compared with the two-component Camassa–Holm system, the modified two-component Camassa–Holm system introduces a regularized density which makes possible the existence of solutions of lower regularity, and in particular ... -
Symmetry and decay of traveling wave solutions to the Whitham equation
(Journal article, 2017)This paper is concerned with decay and symmetry properties of solitary-wave solutions to a nonlocal shallow-water wave model. An exponential decay result for supercritical solitary-wave solutions is given. Moreover, it is ... -
Symplectic integration of PDEs using Clebsch variables
(Journal article, 2019)Many PDEs (Burgers' equation, KdV, Camassa-Holm, Euler's fluid equations, …) can be formulated as infinite-dimensional Lie-Poisson systems. These are Hamiltonian systems on manifolds equipped with Poisson brackets. The ... -
Szemerédi-Trotter-teoremet og dets anvendelser i forbindelsesgeometri
(Master thesis, 2021)Vi gir en innføring i utvalgte temaer innen additiv kombinatorikk. Vi presenterer Szemerédi-Trotter-teoremet med bevis og viser hvordan dette sentrale verktøyet fra forbindelsesgeometrien kan brukes til å løse problemer ... -
T-Koszul algebras, resolutions and derived equivalences of endomorphism rings
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:56, Doctoral thesis, 2011) -
tabGAN: A Framework for Utilizing Tabular GAN for Data Synthesizing and Generation of Counterfactual Explanations
(Master thesis, 2022)Kontrafaktiske forklaringer er en metode for å forklare prediksjoner fra black-box modeller gjennom henvising til alternative lignende virkeligheter der et annet utfall skjer. Denne eksempel-baserte forklaringsmetoden er ... -
Target Depth Estimation Using Hull Mounted Active Sonar
(Master thesis, 2014)High false alarm rates are a problem in anti-submarine warfare in littoral waters using active broadband sonar. Automatic classification algorithms may help combat this problem by filtering out detections due to non-threatening ... -
Tau-exceptional sequences
(Journal article; Peer reviewed, 2021)We introduce the notions of τ-exceptional and signed τ-exceptional sequences for any finite dimensional algebra. We prove that for a fixed algebra of rank n, and for any positive integer , there is a bijection between ... -
Tau-tilting Theory in Representation Theory of Finite Dimensional Algebras
(Master thesis, 2016)Tau-tilting theory was recently introduced by Adachi, Iyama and Reiten. Their main aim was to develop a generalization of classical tilting theory where mutation is always possible. The inspiration for this came mainly ... -
Tau-tilting Theory in Representation Theory of Finite Dimensional Algebras
(Master thesis, 2016)Tau-tilting theory was recently introduced by Adachi, Iyama and Reiten. Their main aim was to develop a generalization of classical tilting theory where mutation is always possible. The inspiration for this came mainly ... -
Teaching the concept of angles to multilingual learners
(Chapter, 2023) -
Teaching with student response systems (SRS): teacher-centric aspects that can negatively affect students' experience of using SRS
(Journal article; Peer reviewed, 2013)In this article, we describe and discuss the most significant teacher-centric aspects of student response systems (SRS) that we have found to negatively affect students’ experience of using SRS in lecture settings. By doing ... -
Tekstoppgaver i matematikk - Betydningen av oppgavetekstens utforming for elevenes mestring
(Master thesis, 2017)I denne studien har det blitt utført forskning på betydningen av oppgavetekstens utforming i tekstbaserte matematikkoppgaver. Det har blitt utført en småskala kvalitativ undersøkelse med elever i en klasse på 10. trinn som ... -
Temporal and spatial variation in prevalence of the parasite Syngamus trachea in a metapopulation of House Sparrows (Passer domesticus)
(Journal article, 2013)When investigating parasite–host dynamics in wild populations, a fundamental parameter to investigate is prevalence. This quantifies the percentage of individuals infected in the population. Investigating how prevalence ... -
Temporal changes in parameters describing stochastic population dynamics
(Master thesis, 2011)The solution of a stochastic differential equation with temporally dependent parameters is the basis for the following analysis of stochastic population dynamics with temporal changes in the parameters. A discrete density ... -
Ten years of Methods in Ecology and Evolution
(Journal article; Peer reviewed, 2020)The start of 2020 marks the end of the first decade of Methods in Ecology and Evolution. When we launched the journal in 2010, we did so because of feedback from the community that there was a need for a journal that ... -
Tension during parametric excitation in submerged vertical taut tethers
(Journal article; Peer reviewed, 2017)The construction of a suspension bridge with floating pylons or a submerged floating tunnel requires the installation of a mooring system. The option of taut vertical tethers, similar to those used in tension-leg platforms, ...