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 8 of 8 for “"Non-linear dynamical systems"”.
-
Parameter Identification and the Design of Experiments for Continuous Non-Linear Dynamical Systems
… analysis, control, and optimization of complex systems. One important step necessary to create an effective model is designing an experiment from which the unknown model parameter can be accurately identified and then verified. The strategy which one approaches this problem is dependent on the …
-
Generalized Volterra-Wiener and surrogate data methods for complex time series analysis
… thesis describes the current state-of-the-art in nonlinear time series analysis, bringing together approaches from a broad range of disciplines including the non-linear dynamical systems, nonlinear modeling theory, time-series hypothesis testing, information theory, and self-similarity. We stress …
-
Reinforcement Learning and Planning for Preference Balancing Tasks
Robots are often highly non-linear dynamical systems with many degrees of freedom, making solving motion problems computationally challenging. One solution has been reinforcement learning (RL), which learns through experimentation to automatically perform the near-optimal motions that complete a …
-
Measures from complexity science provide manufacturing companies with insights previously unavailable to them
… success in application of these tools. Complex systems SCience, with its origins in communications, control theory and non-linear dynamical systems, has provided previously unavailable insight into real-world systems. The applications to date in manufacturing have been in soft systems appearing …
-
Dynamic non-linear system modelling using wavelet-based soft computing techniques
The enormous number of complex systems results in the necessity of high-level and cost-efficient modelling structures for the operators and system designers. Model-based approaches offer a very challenging way to integrate a priori knowledge into the procedure. Soft computing based models in …
-
Efficient formulation and implementation of ensemble based methods in data assimilation
… to obtain improved estimates of the state of non-linear dynamical systems such as the atmosphere and/or the ocean. This work develops efficient ensemble-based methods for data assimilation. A major bottleneck in ensemble Kalman filter (EnKF) implementations is the solution of a linear system …
-
Analysis and synthesis techniques of nonlinear dynamical systems with applications to diagnostic of controlled thermonuclear fusion reactors
Nonlinear dynamical systems are of wide interest to engineers, physicists and mathematicians, and this is due to the fact that most of physical systems in nature are inherently non-linear. The nonlinearity of these systems has consequences on their time-evolution, which in some cases can be …
-
ΓΕΝΙΚΑ ΚΑΙ ΤΟΠΙΚΑ ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ ΤΗΣ ΧΑΟΤΙΚΗΣ ΔΟΜΗΣ ΘΑΛΑΣΣΙΩΝ ΔΥΝΑΜΙΚΩΝ ΣΥΣΤΗΜΑΤΩΝ
WE INVESTIGATE THE PROPERTIES OF A MARINE DYNAMICAL SYSTEM BY MEANS OF TIME SERIES OF THE SEA-LEVEL HEIGHT AT FOUR LOCATIONS IN THE SARONIKOS GULF IN THE AEGEAN SEA. IN ORDER TO CHARACTERIZE THE DYNAMICS WE ESTIMATE THE DIMENSION OF THE UNDERLYING SYSTEM ATTRACTOR AND WE COMPUTE ITS LYAPUNOV …