Search for dissertations about: "Dietrich von Rosen"
Showing result 16 - 20 of 24 swedish dissertations containing the words Dietrich von Rosen.
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16. Studies in Estimation of Patterned Covariance Matrices
Abstract : Many testing, estimation and confidence interval procedures discussed in the multivariate statistical literature are based on the assumption that the observation vectors are independent and normally distributed. The main reason for this is that often sets of multivariate observations are, at least approximately, normally distributed. READ MORE
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17. Testing spatial independence using a separable covariance matrix
Abstract : Spatio-temporal processes like multivariate time series and stochastic processes occur in many applications, for example the observations from functional magnetic resonance imaging (fMRl) or positron emission tomography (PET). It is interesting to test independence between k sets of the variables, that is testing spatial independence. READ MORE
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18. Contributions to High–Dimensional Analysis under Kolmogorov Condition
Abstract : This thesis is about high–dimensional problems considered under the so{called Kolmogorov condition. Hence, we consider research questions related to random matrices with p rows (corresponding to the parameters) and n columns (corresponding to the sample size), where p > n, assuming that the ratio converges when the number of parameters and the sample size increase. READ MORE
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19. On the asymptotic spectral distribution of random matrices : closed form solutions using free independence
Abstract : The spectral distribution function of random matrices is an information-carrying object widely studied within Random matrix theory. In this thesis we combine the results of the theory together with the idea of free independence introduced by Voiculescu (1985). READ MORE
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20. On two classic problems in statistics
Abstract : .... READ MORE