Blar i Institutt for matematiske fag på utgivelsesdato
Viser treff 61-80 av 2359
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Estimation of Resrvoir Properties by Joint Inversion of Seismic AVO and CSEM data
(Master thesis, 2007)Porosity and water saturation in a horizontal top-reservoir are estimated from seismic AVO (Amplitude Versus Offset) data and Controlled Source Electromagnetic (CSEM) data jointly. A model connecting porosity and saturation ... -
Geometric integration of nonlinear wave equations
(Master thesis, 2007)We give an short introduction to the Camassa-Holm equation and its travelling wave solutions. Many well-known equations in mathematical physics describe geodesic flows on appropriate Lie groups. The choice of group and ... -
Model Choice and Experimental Design for Generalized Linear Spatial Models
(Master thesis, 2007)In this paper we look at generalised linear spatial models, in a bayesian setting. For inference we use a special approxomative technique known as the Laplace approximation. We examine a dataset consisting of radionucleide ... -
Parallel Multiple Proposal MCMC Algorithms
(Master thesis, 2007)We explore the variance reduction achievable through parallel implementation of multi-proposal MCMC algorithms and use of control variates. Implemented sequentially multi-proposal MCMC algorithms are of limited value, but ... -
THE INVESTIGATION OF APPROPRIATE CONTROL ALGORITHMS FOR THE SPEED CONTROL OF WIND TURBINE HYDROSTATIC SYSTEMS
(Master thesis, 2007)This report consists of two chapters. The first is concerned with a new approach to pipe flow modelling and the second has to do with the simulation of the hydrostatic system which will be applied to a wind turbine.For the ... -
Financial modelling applied to long-horizon savings and pension products.
(Master thesis, 2007)his thesis studies financial models applied to valuation and risk measurement applicable to products in the life and pension area. Stock market theory and option pricing are described as a theoretical background. Mathematical ... -
Elevenes motivasjon for å lære matematikk og undersøkende matematikkundervisning
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:262, Doctoral thesis, 2007)Avhandlingen fokuserer på elevenes motivasjon for å lære matematikk. Studiens overordnede forskningsspørsmål er: Hvordan kan elevers motivasjon for å lære matematikk utvikle seg når de opplever en matematikkundervisning ... -
Applications of splitting Methods and exponential Integrators to an electro-chemical Heart Cell Model
(Master thesis, 2007)In this thesis we discuss how a system of ordinary differential equations (ODE) describing electro-chemical processes in a heart cell can be solved by numerical methods. The system is stiff, and explicit numerical solvers ... -
Kvasikonforme avbildninger og anvendelser i holomorf dynamikk
(Master thesis, 2007)Vi innfører klassen av kvasikonforme avbildninger i det komplekse planet, og viser en rekke fundamentale egenskaper ved disse. Herunder den målbare avbildningssatsen. Heretter anvendes disse resultatene til å vise ... -
Approximate Bayesian Inference for Latent Gaussian Models
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:214, Doctoral thesis, 2007)This thesis consists of five papers, presented in chronological order. Their content is summarised in this section. Paper I introduces the approximation tool for latent GMRF models and discusses, in particular, the ... -
Streamline-Based History Matching: A Review
(Research report, 2007)In recent years, several methods for streamline-based history matching have been developed. These methods have proved to be efficient for three reasons: First, streamlines delineate flow patterns and can therefore be used ... -
Exact Statistical Inference in Nonhomogeneous Poisson Processes, based on Simulation
(Master thesis, 2007)We present a general approach for Monte Carlo computation of conditional expectations of the form E[(T)|S = s] given a sufficient statistic S. The idea of the method was first introduced by Lillegård and Engen [4], and has ... -
Spatial variability in seismic depth tomography
(Master thesis, 2007)The location of a reflector or medium in the subsurface is correlated with the high wavenumbers or high frequencies in the velocity field. Indeed, the determination of the high frequencies of the velocity field both normally ... -
Hierarchical Ensemble Kalman Filter: for Observations of Production and 4-D Seismic Data
(Master thesis, 2007)Hierarchical Bayesian sequential Reservoir History matching, seismic inversion, Ensemble Kalman Filter, -
Valuating Forward Contracts in the Electricity Market using Partial Integro-differential Equations
(Master thesis, 2007)e will evaluate forward contracts in the electricity market. A thorough presentation of stochastic analysis for processes with discontinuous paths are provided, and some results concerning these from mathematical finance ... -
Bayesian Text Categorization
(Master thesis, 2007)Natural language processing is an interdisciplinary field of research which studies the problems and possibilities of automated generation and understanding of natural human languages. Text categorization is a central ... -
Kombinasjonen av eksplisitt og implisitt løser for simulering av den elektriske aktiviteten i hjertet.
(Master thesis, 2007)Å skape realistiske simuleringer av et ECG-signal på en datamaskin kan være til stor nytte når man ønsker å forstå sammenhengen mellom det observerte ECG-signalet og hjertets tilstand. For å kunne få en realistisk simulering ... -
Metodar og data til estimering av parametrar i risikomodellen for transport av farleg gods
(Master thesis, 2007)Det er utvikla ein nasjonal risikomodell for transport av farleg gods. Parametrar i modellen skal estimerast ved statistiske metodar eller fastsetjast ved ekspertvurderingar. Statistiske metodar med naudsynte data til ... -
Statistisk analyse av celleprøver innen kreftdiagnose.: Multinomisk logistisk regresjon - modelltilpasning og prediksjon.
(Master thesis, 2007)Brystkreft og livmorhalskreft er to av de hyppigste kreftformene blant kvinner. Masteroppgaven omhandler disse to krefttypene, og problemstillinger løses ved å bruke medisinsk statistikk. To forskjellige datasett er brukt, ... -
Degeneration as a Partial Order on Module Categories
(Master thesis, 2007)Chapter 1 contains most of the background material for this thesis. In Chapter 2 we provide a formal method for determining degeneration for algebras of finite representation type. In Chapter 3 we give an alternative ...