Search for dissertations about: "Maximum likelihood estimation"

Showing result 16 - 20 of 140 swedish dissertations containing the words Maximum likelihood estimation.

  2. 16. Some Statistical Aspects of Cancer Risk Estimation

    Author : Johan Eklund; Lennart Bondesson; Yuri Belyaev; Tom Britton; Umeå universitet; []
    Keywords : Cancer risk; competing risk model; prediction; familial cancer; hierarchic model; method of moments; maximum likelihood; MCMC;

    Abstract : .... READ MORE

  4. 17. Low-angle estimation : Models, methods and bounds

    Author : Katarina Boman; Peter Stoica; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signal Processing; Signalbehandling;

    Abstract : In this work we study the performance of elevation estimators and lower bounds on the estimation error variance for a low angle target in a smooth sea scenario using an array antenna. The article is structured around some key assumptions on multipath knowledge, signal parameterization and noise covariance, giving the reader a framework in which Maximum Likelihood estimators exploiting different á priori information can be found. READ MORE

  5. 18. Maximum likelihood estimation in signal analysis of MR spectroscopy

    Author : Pia Löthgren; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Proton magnetic resonance spectroscopy (MRS) is used to determine the concentration of metabolites in organic tissues, or to study metabolic changes in a non-invasive way. The complex-valued magnetic resonance spectroscopy signals are assumed to be disturbed by additive white noise. READ MORE

  6. 19. Spectral analysis and magnetic resonance spectroscopy

    Author : Tomas Sundin; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nonparametric spectral analysis; magnetic resonance spectroscopy; parameter estimation; maximum likelihood estimation; nonlinear least squares; Signal processing; Signalbehandling; Signal Processing; Signalbehandling;

    Abstract : This dissertation is concerned with nonparametric approaches for spectral analysis (SA) and algorithms for magnetic resonance spectroscopy (MRS) data analysis.A method to obtain the optimal smoothing window for the class of SA methods based on local smoothing of the periodogram is proposed. READ MORE

  7. 20. Statistical Modeling of Diffusion Processes with Financial Applications

    Author : Erik Lindström; Finansiell matematik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; actuarial mathematics; Statistik; operations research; programming; Option pricing; Model validation; Recursive estimation; Diffusion processes; Maximum Likelihood Estimation; operationsanalys; programmering; aktuariematematik; Statistics;

    Abstract : This thesis consists of five papers (Paper A-E) on statistical modeling of diffusion processes. Two papers (Paper A & D) consider Maximum Likelihood estimators for non-linear diffusion processes. READ MORE