Browsing Institutt for matematiske fag by Title
Now showing items 121-140 of 2440
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Accounting for individual-specific variation in habitat-selection studies: Efficient estimation of mixed-effects models using Bayesian or frequentist computation
(Journal article; Peer reviewed, 2019)1. Popular frameworks for studying habitat selection include resource‐selection functions (RSFs) and step‐selection functions (SSFs), estimated using logistic and conditional logistic regression, respectively. Both frameworks ... -
Accounting for interspecific competition and age structure in demographic analyses of density dependence improves predictions of fluctuations in population size
(Peer reviewed; Journal article, 2019)Understanding species coexistence has long been a major goal of ecology. Coexistence theory for two competing species posits that intraspecific density dependence should be stronger than interspecific density dependence. ... -
Accounting for spatial bias in citizen science observations of Norwegian freshwater fish by using an effort spatial field
(Master thesis, 2020)Modellbasert dataintegrasjon gir et lovende rammeverk for konstruksjon av artsfordelingsmodeller ved bruk av folkeforsknings-data sammen med strukturerte data fra undersøkelser, men en vanlig utfordring er hvordan man skal ... -
Accounting for student perspectives in task design
(Chapter, 2015)This chapter aims to provide insights into students’ perspectives about the meanings and purposes of mathematical tasks and to understand how appropriate task design might help minimize any gaps between teacher intentions ... -
Accounting for unobserved spatial variation in step selection analyses of animal movement via spatial random effects
(Peer reviewed; Journal article, 2023)Step selection analysis (SSA) is a common framework for understanding animal movement and resource selection using telemetry data. Such data are, however, inherently autocorrelated in space, a complication that could impact ... -
Accuracy of estimating the mean from rounded data
(Peer reviewed; Journal article, 2020)Rounding errors are an important factor in many statistical problems; therefore, statistical analysis of rounded data has recently received growing interest. In this paper we obtain an estimate of accuracy of the sample ... -
Accurate discretizations of torqued rigid body dynamics
(Master thesis, 2010)This paper investigates the solution of the free rigid body equations of motion, as well as of the equations governing the torqued rigid body. We will consider two semi-exact methods for the solution of the free rigid body ... -
Acoustic Scattering in an Isogeometric Framework
(Doctoral theses at NTNU;2019:355, Doctoral thesis, 2019) -
Actigraphy as an objective intra‑individual marker of activity patterns in acute‑phase bipolar disorder: a case series
(Journal article; Peer reviewed, 2018)Background Actigraphy could be an objective alternative to clinical ratings of motor activity in bipolar disorder (BD), which is of importance now that increased activity and energy are added as cardinal symptoms of ... -
Action Representation in the Mouse Parieto-Frontal Network
(Peer reviewed; Journal article, 2020)The posterior parietal cortex (PPC) and frontal motor areas comprise a cortical network supporting goal-directed behaviour, with functions including sensorimotor transformations and decision making. In primates, this network ... -
Active Learning for Data Streams
(Doctoral theses at NTNU;2024:186, Doctoral thesis, 2024)As businesses increasingly rely on machine learning models to make informed decisions, the ability to develop accurate and reliable models is critical. However, in many industrial contexts, data annotation represents a ... -
Adams operations and symmetries of representation categories
(Journal article, 2021)Adams operations are the natural transformations of the representation ring functor on the category of finite groups, and they are one way to describe the usual λ–ring structure on these rings. From the representation-theoretical ... -
Adams spectral sequences and Toda brackets
(Master thesis, 2024)Beregning av stabile homotopigrupper for topologiske rom, da spesielt sfærer, har vært og fortsetter å være en av drivkreftene i algebraisk topologi. To verktøy som brukes til dette er Toda brackets[19] og Adams ... -
Adaptive energy preserving methods for partial differential equations
(Journal article; Peer reviewed, 2017)A framework for constructing integral preserving numerical schemes for time-dependent partial differential equations on non-uniform grids is presented. The approach can be used with both finite difference and partition of ... -
Adaptive isogeometric finite element analysis of steady-state groundwater flow
(Journal article; Peer reviewed, 2015)Numerical challenges occur in the simulation of groundwater flow problems because of complex boundary conditions, varying material properties, presence of sources or sinks in the flow domain, or a combination of these. In ... -
Adaptive Isogeometric Methods for Boussinesq Problems
(Doctoral theses at NTNU;2022:261, Doctoral thesis, 2022)Computational Fluid Dynamics (CFD) is the numerical study of fluid flow, heat transfer, turbulence modelling and several conservation laws. The fluids can be liquids, gases and even plasmas. There is a vast number of ... -
Adaptive Monitoring of Snowpack Development using a Dynamic Linear Model.
(Master thesis, 2021)Snøskred er en av de vanligste naturfarene i Norge, med stor trussel mot menneskeliv og infrastruktur, siden snøskred er en av de vanligste årsakene for blokkering av veier. Varsom er et overvåkings- og varslingssystem ... -
Adaptive Sampling of River Plume Fronts: Integrating Statistical Modeling and Autonomous Path Planning for Enhanced Oceanographic Exploration
(Doctoral theses at NTNU;2024:180, Doctoral thesis, 2024)The ocean remains largely unexplored and presents a great challenge for scientific research. Ocean fronts have shown importance for understanding both biological and physical oceanographic phenomena, with river plume ... -
Adaptive spatial designs minimizing the integrated Bernoulli variance in spatial logistic regression models - with an application to benthic habitat mapping
(Peer reviewed; Journal article, 2022)Constructing efficient spatial sampling designs is important for monitoring, understanding and characterizing environmental processes acting over large-scale spatial domain. Multiple types of devices can accomplish informative ... -
Adaptive Underwater Robotic Sampling of Dispersal Dynamics in the Coastal Ocean
(Chapter, 2022)To get a better understanding of the highly nonlinear processes driving the ocean, efficient and informative sampling is critical. By combining robotic sampling with ocean models we are able to choose informative sampling ...