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 7 of 7 for “"deim"”.
-
Model reduction for nonlinear dynamical systems with parametric uncertainties
… the discrete empirical interpolation method (DEIM) is employed to approximate the nonlinear term such that the repeated online evaluations of the reduced-order model (ROM) is independent of the full-order model (FOM) dimension. In problems where vastly different magnitudes exist in the …
-
Impact of Discretization Techniques on Nonlinear Model Reduction and Analysis of the Structure of the POD Basis
… and the Discrete Empirical Interpolation Method (DEIM), is studied. This study is facilitated by examination of several common ODE solvers. Embedded in this process, some results on the structure of the POD basis and an alternative algorithm to compute the POD subspace are presented. Various …
-
Characteristic Classification of Walkers via Underfloor Accelerometer Gait Measurements through Machine Learning
… are Discrete Empirical Interpolation Method (DEIM), Q-DEIM, and Projection Coefficients. A two-part methodology is proposed to implement the approach completed in this thesis work. The first step validates the algorithm design choices, i.e. using bagged or boosted decision trees for …
-
Computational Simulation of Detonation Waves and Model Reduction for Reacting Flows
… and the discrete empirical interpolation method (DEIM) that addresses the computational challenges involved in the numerical simulations of reacting flows is also proposed and demonstrated.
-
Model Reduction of Nonlinear Fire Dynamics Models
… as the discrete empirical interpolation method (DEIM) to address the slowness due to the nonlinearity. We create new methods to reduce nonlinear models, such as the Burgers' equation, that perform better than POD over a wider range of input conditions. Further, these ROMs can often be constructed …
-
Optimal reservoir management using adaptive reduced-order models
… (TBR) and discrete empirical interpolation (DEIM) to accurately reproduce the full-order model (FOM) input/output behavior. POD allows for a concise representation of the FOM in terms of relatively few variables while TBR improves the overall stability and accuracy. DEIM improves the …
-
Iterative Solution Methods for Reduced-Order Models of Parameterized Partial Differential Equations
… the discrete empirical interpolation method (DEIM) to cheaply evaluate the nonlinear components of the reduced model. The method identifies points in the PDE discretization necessary for representing the nonlinear component of the reduced model accurately. This approach incurs online …