Browsing Fakultät für Mathematik und Informatik (inkl. GAUSS) by Advisor "Munk, Axel Prof. Dr."
Now showing items 21-32 of 32
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Ein semiparametrisches Verfahren zur Planung und Auswertung von Nichtunterlegenheitsstudien im Cox-Modell
(2012-03-06)In this dissertation we develop a statistical method for planning and evaluating non-inferiority trials for right censored time to event data in the gold standard design. In clinical trials ... -
Change point estimation in noisy Hammerstein integral equations
(2011-01-17)We consider the inverse regression model Y = Hf (X) + ε for several classes of non- linear Hammerstein integral operators H. In particular identifiability depending on the integral kernel ... -
Fingerprint Growth Prediction, Image Preprocessing and Multi-level Judgment Aggregation
(2011-01-06)Finger growth is studied in the first part of the thesis and a method for growth prediction is presented. The effectiveness of the method is validated in several tests. Fingerprint image ... -
Nonparametric Methods in Spot Volatility Estimation
(2011-01-06)This work is devoted to study a model, where we observe a stochastic process X under additional measurement noise. The main objective is to estimate a ``fluctuation measure``, called the volatility/intermittency of ... -
Statistische Multiresolutions-Schätzer in linearen inversen Problemen - Grundlagen und algorithmische Aspekte
(2010-12-15)Applications of statistical multiresolution techniques in regression problems have attracted a lot of attention recently. The main reason for this is that the resulting statistical ... -
Maximum Likelihood Theory for Retention of Effect Non-Inferiority Trials
(2010-05-28)This work deals with the methodical issues of non-inferiority trials whose aim is to demonstrate that a new test treatment is non-inferior to a well-established reference treatment. In the ... -
Hierarchically linked extended features for fingerprint processing
(2009-03-23)This thesis discusses a novel approach for fingerprint feature extraction. A new fingerprint structure has been proposed as a basis for the extraction of extended features. These new features ... -
Modelling and Analysing Orientation Fields of Fingerprints
(2007-09-21)Global features of fingerprints, the most useful of which are orientation fields, are deployed for classification, image enhancement, and to define intrinsic coordinates. We thus strive for ... -
Data-driven goodness-of-fit tests
(2007-08-22)The thesis consists of the two main parts.In the first part, we consider testing statistical hypotheses about densities of signals in deconvolution models. A new approach to this problem is proposed. ... -
Confidence bands for structural relationship models
(2007-01-29)The goal of the thesis is to construct the simultaneous confidence bands for structural relationship models introduced by Freitag (2000), Freitag and Munk (2005). Consider the two-sample ... -
Jump estimation for noisy blurred step functions
(2006-09-18)We consider the estimation of a step function $f$ from noisy observations of $Kf$, where $K$ is some integral operator with bounded integral Kernel. We use a penalized least squares estimator ... -
The Likelihood Ratio Test for Order Restricted Hypotheses in Non-Inferiority Trials
(2003-10-16)In clinical investigations with the goal to evaluate new therapies, the efficacy of a new therapy is usually declared by its superiority over a palcebo or standard. In the last decade new approaches became popular focussing ...