Browsing Fakultät für Mathematik und Informatik (inkl. GAUSS) by Title
Now showing items 450-469 of 546
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Secure Routing in Intelligent Device-to-Device Communications
(2016-12-02)Device-to-Device (D2D) communications have received exceptional attention nowadays due to the overabundance number of applications and services. Therefore, D2D is expected to be a vital technical component in Internet of ... -
"Security at the Physical and MAC Layers in Wireless Networks"
(2013-04-18)The main objective of this dissertation is to investigate security solutions and issues at the lower layers in wireless networks. In the first part, the potential of the physical layer in providing security solutions ... -
Semantic analysis of image sequences using computer vision methods
(2012-10-11)Observing, learning, and imitating human skills are intriguing topics in cognitive robotics. The main problem in the imitation learning paradigm is the policy development. Policy can be defined as a mapping from an ... -
Semiparametric Estimation of Drift, Rotation and Scaling in Sparse Sequential Dynamic Imaging: Asymptotic theory and an application in nanoscale fluorescence microscopy
(2019-02-28)Light microscopy is an important instrument in life sciences. Over the last two decades, superresolution fluorescence microscopy techniques have been established, breaking the Abbé diffraction barrier, which before had ... -
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 ... -
Service-Differentiated Cooperative Routing in the Internet of Things
(2023-11-06)The IPv6 Routing Protocol for Low-power and Lossy Networks (RPL) was designed to operate with different Internet of Things (IoT) applications ranging from regular, to critical, to alarm/sporadic. That is due to its ability ... -
Shape space in terms of Wasserstein geometry and application to quantum physics
(2018-11-26)This thesis offers a mathematical framework to treat quantum dynamics without reference to a background structure, but rather by means of the change of the shape of the state. For this, Wasserstein geometry is used. The ... -
Short-Latency Brain-Computer Interface Using Movement-Related Cortical Potentials
(2016-08-09)In recent years, brain-computer interface (BCI) has been developing as a communication and rehabilitation tool for patients with neurological diseases, such as stroke and spinal cord injury. This system decodes the user's ... -
Simulated Mental Imagery for Image Synthesis and its Application in Robotic Planning
(2024-06-05)The autonomy of robots is a prominent research focus in the field of robotics. A key aspect is endowing robots with the ability to accurately perceive the environment and to plan for specific tasks, which poses a considerable ... -
Simultaneous Confidence Statements about the Diffusion Coefficient of an Ito-Process with Application to Spot Volatility Estimation
(2014-07-28)In this PhD thesis, we address the problem of giving simultaneous confidence statements about local features of the diffusion of an Itô process. To this end, we construct a multiscale test based on weighted quadratic ... -
Singularities of two-point functions in Quantum Field Theory
(2013-08-28)The main topic of the present thesis is the study of singularities of two-point functions of spin-0 and spin-1/2 quantum fields, possibly set on curved spacetime or in the presence of smooth, external electromagnetic ... -
Smart Road Danger Detection and Warning
(2021-11-22)Road dangers have caused numerous accidents, thus detecting them and warning users are critical to improving traffic safety. However, it is challenging to recognize road dangers from numerous normal data and warn road users ... -
Social-Based Data Routing Strategies in Delay Tolerant Networks
(2014-04-03)Delay Tolerant networks (DTNs) are intermittently connected mobile networks in which the end-to-end paths do not exist. Data delivery in such networks relies upon the contacts that use "store-carry-and-forward" paradigm ... -
Solution approaches for facility layout problems
(2021-01-29)The chief executive officers of real-world factories aim to implement a cost efficient production. The layout of the operating equipment is one of the main influencing factors and this leads to facility layout problems. ... -
Solution Methods for Multi-Objective Robust Combinatorial Optimization
(2018-05-02)This thesis addresses combinatorial optimization problems with several objectives containing uncertain parameters. A variety of robustness concepts for multi-objective optimization problems have been developed during the ... -
Some Aspects on Coarse Homotopy Theory
(2010-01-08)The most important examples of coarse spaces arise from proper metrics on spaces or from metrisable compactifications. In both cases, the bounded subsets are precisely the relatively compact ones. On the other hand, one ... -
Some remarks on the central limit theorem for stationary Markov processes
(2004-05-19)The central limit theorem for additive functionals of stationary ergodic Markov processes is investigated via the method of martingale approximations. We give a necessary and sufficient ... -
Sparse Fast Trigonometric Transforms
(2019-07-22)Trigonometric transforms like the Fourier transform or the discrete cosine transform (DCT) are of immense importance in signal and image processing, physics, engineering, and data processing. The research of past decades ... -
Spatial Coherence Enhancing Reconstructions for High Angular Resolution Diffusion MRI
(2016-01-21)A main step in processing and analyzing data obtained from High Angular Resolution Diffusion MRI is the reconstruction of some measure of diffusion per spatial location and per direction in the volume under examination. ... -
Spatial Interpolation and Prediction of Gaussian and Max-Stable Processes
(2012-07-04)This thesis deals with different aspects of spatial interpolation and prediction of random fields. In the case of Gaussian random fields, best linear predictors and conditional distributions are well-known, provided that ...