Blar i Institutt for matematiske fag på emneord "ntnudaim"

Viser treff 21-40 av 183

    • Applications of splitting Methods and exponential Integrators to an electro-chemical Heart Cell Model 

      Gjerald, Sjur (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 ...

    • Approximate recursive algorithm for finding MAP of binary Markov random fields 

      Altaye, Endale Berhane (Master thesis, 2010)
      The purpose of this study was to develop a recursive algorithm for computing a maximum a posteriori (MAP) estimate of a binary Markov random field (MRF) by using the MAP-MRF framework. We also discuss how to include an ...

    • Approximate recursive calculations of discrete Markov random fields 

      Arnesen, Petter (Master thesis, 2010)
      In this thesis we present an approximate recursive algorithm for calculations of discrete Markov random fields defined on graphs. We write the probability distribution of a Markov random field as a function of interaction ...

    • Aspects of Applying the ACER Method to Ocean Wave Data 

      Valberg, Morten (Master thesis, 2010)
      This thesis gives a presentation of the classical Peaks Over Threshold (POT) method and the recently developed Average Conditional Exceedence Rates (ACER) method. Real life ocean significant wave height data sets, each ...

    • Asymptotic Approximations of Gravity Waves in Water 

      Jansen, Arne Kristian (Master thesis, 2009)
      The governing equations for waves propagating in water are derived by use of conservation laws. The equations are then cast onto dimensionless form and two important parameters are obtained. Approximations by use of ...

    • Automatic Parametrisation and Block pseudo Likelihood Estimation for binary Markov random Fields 

      Toftaker, Håkon (Master thesis, 2008)
      Discrete Markov random fields play an important role in spatial statistics, and are applied in many different areas. Models which consider only pairwise interaction between sites such as the Ising model often perform well ...

    • Bandwidth Selection in Kernel Density Estimation 

      Kile, Håkon (Master thesis, 2010)
      In kernel density estimation, the most crucial step is to select a proper bandwidth (smoothing parameter). There are two conceptually different approaches to this problem: a subjective and an objective approach. In this ...

    • Bayesian Inversion of Well Log Data into Facies Units based on a Spatially Coupled Model 

      Vigsnes, Maria (Master thesis, 2006)
      Through a study of cored wells from the Statfjord Formation in the Tampen Area, we derive a spatially coupled classification model for facies units. We consider a Bayesian framework for the problem. A likelihood model is ...

    • Bayesian Seismic Lithology/Fluid Inversion Constrained by Rock Physics Depth Trends 

      Rimstad, Kjartan (Master thesis, 2008)
      In this study we consider 2D seismic lithology/fluid inversion constrained by rock physics depth trends and a prior lithology/fluid Markov random field. A stochastic relation from porosity and lithology/fluid to seismic ...

    • Bayesian Text Categorization 

      Næss, Arild Brandrud (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 ...

    • Bayesianske metodar relevant for jernbanevedlikehald 

      Nilsen, Jens Morten (Master thesis, 2008)
      Jernbaneverket ønskjer å utnytte ressursane dei har til vedlikehald best mogleg. Systematisering og lagring av data om svikt og tilstand på dei utallege komponentane som utgjer det norske jernbanenettet i databasen BaneData ...

    • Bayesianske nettverk kontra Monte Carlo simulering for estimering av produksjonsregularitet 

      Børsting, Aud (Master thesis, 2009)
      Denne masteroppgaven omhandler hvordan Bayesianske nettverk og Monte Carlo simulering kan bli brukt til å estimere produksjonsregulariteten til et system. De to metodene blir også sammenlignet med hverandre. Sammenligningen ...

    • Bruk av DGT og HR-ICP-MS for studier av metallers døgn- og sesongvariasjoner i vassdrag 

      Belsaas, Kristin (Master thesis, 2010)
      To vassdrag, Søra i Trondheim kommune og Vorma i Orkdal kommune, er blitt studert med hensyn på konsentrasjoner av oppløste metaller over en periode på fem-seks måneder fra oktober 2009 til april 2010. Det ble funnet ...

    • C*-crossed products 

      Wanvik, Martin Kristen Reed (Master thesis, 2008)
      We define and study the so-called C*-crossed product construction, primarily from the point of view of C*-dynamical systems, but we will also look at how crossed products (by commutative C*-algebras) arise as C*-algebras ...

    • Changepoint Models 

      Ramsnes, Kristine Behné (Master thesis, 2009)
      In this thesis we study recursion methods for making Bayesian inference on a class of multiple changepoint models, introduced in Fearnhead(2006). We present and implement recursion algorithms, and we evaluate how parameter ...

    • Classification of seismic waveform attributes in a Bayesian framework 

      Haugeto, Vegard Torje (Master thesis, 2009)
      The work conducted in this thesis is an extension of an existing methodology developed at Schlumberger Stavanger Research. The Extrema Classification method (Borgos, 2003) provides a framework for automated mapping of ...

    • Closed-skew Distributions: Simulation, Inversion and Parameter Estimation 

      Iversen, Daniel Høyer (Master thesis, 2010)
      Bayesian closed-skew Gaussian inversion is defined as a generalization of traditional Bayesian Gaussian inversion. Bayesian inversion is often used in seismic inversion, and the closed-skew model is able to capture the ...

    • Cluster categories and cluster-tilted algebras 

      Torkildsen, Hermund Andre (Master thesis, 2006)
      We have given an introduction to the theory of cluster categories and cluster-tilted algebras, and this was one of our main objectives in this thesis. We have seen that cluster-tilted algebras are relation-extension algebras, ...

    • Combining the MAX test with methods for Family-wise error rate 

      Risberg, Marita (Master thesis, 2008)
      In chapter 1 the necessary biological background for this thesis is provided. Here the definition of a SNP is provided and the connection between the human genom, DNA and SNPs. Chapter 2 gives the notation and definitions ...

    • Comparision of methods and software tools for availability assessment of production systems 

      Vesteraas, Astrid Hetland (Master thesis, 2008)
      This thesis presents and considers several different methods for computation of availability and production availability for production system. It is assumed that the system handles flow of a fluid. The thesis presents two ...