Sökning: "semi-definite programming"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden semi-definite programming.
1. Optimizing Networked Systems and Inverse Optimal Control
Sammanfattning : This thesis is concerned with the problems of optimizing networked systems, including designing a distributed energy optimal consensus controller for homogeneous networked linear systems, maximizing the algebraic connectivity of a network by projected saddle point dynamics. In addition, the inverse optimal control problems for discrete-time finite time-horizon Linear Quadratic Regulators (LQRs) are considered. LÄS MER
2. Topology optimization considering stress, fatigue and load uncertainties
Sammanfattning : This dissertation concerns structural topology optimization in conceptual design stages. The objective of the project has been to identify and solve problems that prevent structural topology optimization from being used in a broader sense in the avionic industry; therefore the main focus has been on stress and fatigue constraints and robustness with respect to load uncertainties. LÄS MER
3. On some sparsity related problems and the randomized Kaczmarz algorithm
Sammanfattning : This thesis studies several problems related to recovery and estimation. Specifically, these problems are about sparsity and low-rankness, and the randomized Kaczmarz algorithm. This thesis includes four papers referred to as Paper A, Paper B, Paper C, and Paper D. LÄS MER
4. Learning Sequential Decision Rules in Control Design: Regret-Optimal and Risk-Coherent Methods
Sammanfattning : Engineering sciences deal with the problem of optimal design in the face of uncertainty. In particular, control engineering is concerned about designing policies/laws/algorithms that sequentially take decisions given unreliable data. This thesis addresses two particular instances of optimal sequential decision making for two different problems. LÄS MER
5. Optimization Methods for Robust Control with Application to Resistive Wall Modes in Tokamaks
Sammanfattning : In many research areas physical systems are described by mathematical models. We focus here on systems that are regulated by a controller, typically realized by software, whose design involves certain parameters. LÄS MER