Search for dissertations about: "Goodness-of-fit"

Showing result 6 - 10 of 51 swedish dissertations containing the word Goodness-of-fit.

  2. 6. Modelling and Inference for Spatio-Temporal Marked Point Processes

    Author : Ottmar Cronie; Göteborgs universitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Asymptotic normality; Consistency; Cox-Ingersoll-Ross process; Diffusion process; Edge correction; Goodness-of-fit; Richards growth function; Growth-interaction process; Immigration-death process; Least squares estimation; Markov process; Maximum likelihood estimation; Open-growth; Spatio-temporal marked point process; Stationarity; Stochastic differential equation; Transition density; Asymptotic normality;

    Abstract : This thesis deals with inference problems related to the growth-interaction process (GI-process). The GI-process is a continuous time spatio-temporal point process with dynamic interacting marks (closed disks), in which the immigration-death process (ID-process) controls the arrivals of new marked points as well as their potential life-times. READ MORE

  4. 7. Goodness-of-fit tests for some discrete multiplicative models with applications to road traffic accident analysis

    Author : Åke Svensson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The work presented in the thesis was initiated by some problems in the analysis of experiments concerning the effect of speed limits on the number of road traffic accidents. In order to do such an analysis realistic statistical models are required. READ MORE

  5. 8. Some Contributions to Description and Validation of the Extreme Value Distribution

    Author : MirNabi PirouziFard; Statistiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; weighted least squares estimator.; probability plot; power of tests; extreme value distribution; variances and covariances; goodness-of-fit tests; order statistics; Approximations of means;

    Abstract : This thesis focuses on the validation and description of the Gumbel distribution. Since this is a scale and location parameter distribution, the generalized least squares regression of the order statistics on the expected values can be used, without the necessity of iteration, to obtain the best linear unbiased estimates of the parameters. READ MORE

  6. 9. Modeling the covariance matrix of financial asset returns

    Author : Gustav Alfelt; Joanna Tyrcha; Taras Bodnar; Vasyl Golosnoy; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Realized covariance; Autoregressive time-series; Goodness-of-fit test; Matrix singularity; Portfolio theory; Wishart distribution; Matrix-variate gamma distribution; Parameter estimation; High-dimensional data; Moore-Penrose inverse; matematisk statistik; Mathematical Statistics;

    Abstract : The covariance matrix of asset returns, which describes the fluctuation of asset prices, plays a crucial role in understanding and predicting financial markets and economic systems. In recent years, the concept of realized covariance measures has become a popular way to accurately estimate return covariance matrices using high-frequency data. READ MORE

  7. 10. Inner strength among old people : a resource for experience of health, despite disease and adversities

    Author : Kerstin Viglund; Gunilla Strandberg; Berit Lundman; Elisabeth Jonsén; Björn Nygren; Gunilla Borglin; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Inner strength; old people; health; disease management; instrument development; mediating; structural equation modelling; qualitative content analysis; caring sciences in social sciences; omvårdnadsforskning med samhällsvetenskaplig inriktning;

    Abstract : Background Inner strength has been described as an important phenomenon in association with disease management, health, and ageing. To increase the knowledge of the phenomenon of inner strength, a meta-theoretical analysis was performed which resulted in a model of Inner Strength where inner strength comprises four interrelated and interacting dimensions; connectedness, creativity, flexibility, and firmness. READ MORE