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Fine-Tuning BERT for Document Ranking
(Master thesis, 2021)Dokumentrangering handler om å rangere en liste dokumenter basert på en søketekst slik at de mest relevante dokumentene kommer øverst på lista. Dette brukes blant annet i søkemotorer eller vitenskapelige databaser. I denne ... -
Finite approximations of physical models over local fields
(Journal article; Peer reviewed, 2015)We show that the Schrödinger operator associated with a physical system over a local field can be approximated in a very strong sense by finite Schrödinger operators. Some striking numerical results are included at the end ... -
Finite Approximations of Quantum Systems in a Non-Archimedean and Archimedean Setting
(Doctoral thesis at NTNU;2016:212, Doctoral thesis, 2016)Approximation of quantum systems by nite dimensional quantum systems goes back to the foundation of quantum mechanics. Finite dimensional quantum systems were considered by Hermann Weyl, and were considered in much ... -
FINITE ElEMENT METHODS APPLIED TO GROUNDWATER MODEL PROBLEMS, IMPLEMENTED WITH THE USE OF FEniCs
(Master thesis, 2011)In this thesis an attempt is made to discuss the finite element meth-ods and FEniCs. Its main objective is to provide a general overview offinite element method specially, variational formulation of partial differen-tial ... -
Finite element solutions to the wave equation in non-convex domains - A relaxation of the CFL condition in the presence of local mesh refinement
(Master thesis, 2017)Finite element solutions in non-convex domains generally suffer from reduced convergence rates due to reduced regularity. This is also the case for the wave equation. To remedy the situation, (strong) local mesh refinement ... -
Finite type cluster-tilted algebras and cluster structures in 2-CY categories
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:145, Doctoral thesis, 2009) -
Finite-rank Bratteli-Vershik diagrams are expansive—a new proof
(Journal article; Peer reviewed, 2017)Downarowicz and Maass (Ergod. Th. and Dynam. Sys. 28 (2008), 739–747) proved that the Cantor minimal system associated to a properly ordered Bratteli diagram of finite rank is either an odometer system or an expansive ... -
Finite-Volume High-Fidelity Simulation Combined with Finite-Element-Based Reduced-Order Modeling of Incompressible Flow Problems
(Journal article; Peer reviewed, 2019)We present a nonintrusive approach for combining high-fidelity simulations using Finite-Volume (FV) methods with Proper Orthogonal Decomposition (POD) and Galerkin Reduced-Order Modeling (ROM) methodology. By nonintrusive ... -
Finiteness Obstruction in Model Categories
(Master thesis, 2021)Vi viser in denne oppgaven at det er en naturlig måte og gjøre god for endelighets obstruksjon i en generell modell kategori. Operatoren $(Wa(-), w(-))$ vises å være en funktor fra modell kategorier hvor det eksisterer ... -
Finitistic Dimension Conjecture
(Master thesis, 2021)I denne oppgaven oppsummerer vi arbeidet gjort på finitistisk dimensjonsformodning for endeligdimensjonale algebraer siden den først ble postulert i 1960. Vi fokuserer spesielt på å vise hvilke klasser av algebraer hvor ... -
First- and Second-Order Analysis for Optimization Problems with Manifold-Valued Constraints
(Peer reviewed; Journal article, 2022)We consider optimization problems with manifold-valued constraints. These generalize classical equality and inequality constraints to a setting in which both the domain and the codomain of the constraint mapping are smooth ... -
Flat Bundles Over Some Compact Complex Manifolds
(Journal article; Peer reviewed, 2019)We construct examples of flat fiber bundles over the Hopf surface such that the total spaces have no pseudoconvex neighborhood basis, admit a complete Kähler metric, or are hyperconvex but have no nonconstant holomorphic ... -
Flerspråklige elever i møte med tekstoppgaver i matematikk - En casestudie av 18 voksne innvandrerelever som belyser hvilke utfordringer de opplever i arbeidet med tekstoppgaver i matematikk
(Master thesis, 2017)Målet med denne oppgaven er å belyse hvilke aspekter ved tekstoppgaver i matematikk oppleves som vanskelige for flerspråklige elever. Motivasjonen bak temavalget er et ønske om å kunne konkretisere hvilke tiltak som kan ... -
Flexible modelling of spatial variation in agricultural field trials with the R package INLA
(Journal article; Peer reviewed, 2019)The objective of this paper was to fit different established spatial models for analysing agricultural field trials using the open-source R package INLA. Spatial variation is common in field trials, and accounting for it ... -
Flow equivalence and orbit equivalence for shifts of finite type and isomorphism of their groupoids
(Journal article; Peer reviewed, 2018)We give conditions for when continuous orbit equivalence of one-sided shift spaces implies flow equivalence of the associated two-sided shift spaces. Using groupoid techniques, we prove that this is always the case for ... -
Flow-times in an M/G/1 Queue under a Combined Preemptive/Non-preemptive Priority Discipline.: Scheduled Waiting Time on Single Track Railway Lines
(Master thesis, 2010)A priority based rule for use during the process of scheduling trains oper- ating on a single track railway line was proposed by the Norwegian railway operator and owner, Jernbaneverket. The purpose of this study is to ... -
Follow-the-leader models can be viewed as a numerical approximation to the Lighthill-Whitham-Richards model for traffic flow
(Journal article; Peer reviewed, 2018) -
A footnote to a theorem Halász
(Journal article; Peer reviewed, 2020)We study multiplicative functions f satisfying |f(n)|≤1 for all n, the associated Dirichlet series F(s):=∑∞n=1f(n)n−s, and the summatory function Sf(x):=∑n≤xf(n). Up to a possible trivial contribution from the numbers ... -
Forecast Uncertainty for Univariate Time Series Using Generative Adversarial Networks
(Master thesis, 2020)Når man skal predikere fremtidige verdier av en tidsrekke er usikkerheten i prediksjonene en viktig faktor. Nylig har konkurranser innen tidsrekke-prediksjon vist at nevrale nettverk presterer svært godt, men usikkerhetsmålet ... -
Forecasting Child Mortality while Accounting for Complex Survey Design
(Master thesis, 2019)Barnedødelighetsrater er viktige indikatorer på en nasjons helse. FNs tusenårsmål (MDG) og bærekraftsmål (SDG) fokuserer på å redusere barnedødelighet. Man trenger nøyaktige estimater og prediksjoner for nyfødtdødelighet ...