Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"Nonlinear Approximation"”.
-
Greedy Algorithms In Approximation Theory and Compressed Sensing
… is how to construct good methods (algorithms) of approximation, and how to measure the performance of these methods. One of the most successful approaches in this area is the greedy method, which belongs to the theory of nonlinear approximation. This dissertation answers the question for some …
-
Dynamics of marine zooplankton : social behavior, ecological interactions, and physically-induced variability
… other group members. Third, I derive a weakly nonlinear approximation for the steady-state distributions of predator and prey biomass that captures the spatial patterns driven by social tendencies. Fourth, I simulate the schooling behavior of zooplankton in a variable environment; when …
-
Sparse Approximation In Banach Spaces
<p>The sparse approximation problems ask for complete recovery of functions in a given space that are supported by few of the elements of a system of generators for the space or for approximate recovery that involves a limited number of generators.</p> <p>Traditionally, these problems have been …
-
Dynamics of marine zooplankton : social behavior ecological interactions, and physically-induced variability
… other group members. Third, I derive a weakly nonlinear approximation for the steady-state distributions of predator and prey biomass that captures the spatial patterns driven by social tendencies. Fourth, I simulate the schooling behavior of zooplankton in a variable environment; when …
-
Adaptation of Nontraditional Control Techniques to Nonlinear Micro and Macro Mechanical Systems
… crane. The shaped commands are based on a nonlinear approximation of the two-dimensional model frequency and, unlike traditional input-shaping techniques, our approach can account for large hoisting operations. For operator-in-the-loop crane operations, we develop a closed-loop nonlinear …
-
Fast computation tools for adaptive wavelet schemes
… significantly enlarged, including even certain nonlinear problems. This thesis will present and analyze routines for key tasks arising in connection with those schemes. The central point will be a so called recovery scheme that allows to compute arrays of wavelet coefficients efficiently by …