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.
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Showing 1 to 20 of 51 for “"Interpolation Method"”.
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Blackbox Stencil Interpolation Method for model reduction
… modifications can be cumbersome. Non-intrusive methods that do not require modification to the source code are often preferred. This thesis proposed a new formulation of machine learning, Black-box Stencil Interpolation Method, for this purpose. It is a non-intrusive, data-oriented method to …
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Validation of geographically based surface interpolation methods for adjusting construction cost estimates by project location
… a simple, proximity-based location factor interpolation method which is widely accepted and used. Under this method, for a location without adjustment factor, the factor of the geographically “nearest neighbor” will be selected. Although this approach was statistically substantiated by …
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Development of a new shock capturing formula for pressure correction methods
Several methods have been developed to capture shock waves in turbo machinery flows, such as Moore's pressure correction procedure and Denton's time marching procedure. The time marching procedure is traditionally used for transonic flow calculations, whereas the pressure correction method is …
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A GIS Approach to Modeling Groundwater Levels in the Mississippi River Valley Alluvial Aquifer
… of groundwater levels through various spatial interpolation methods. Interpolation is the process of estimating unknown values in the form of a continuous surface, which utilizes observed values with known locations. With the growing concern of groundwater depletion in Arkansas, determining …
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Vector-valued multidimensional signal processing and analysis in the context of fluid flows
… from those for scalar-valued ones. Two interpolation methods are developed based on the physics of fluids. A physically constrained optimal interpolation method is developed when the velocity field is modeled as a random field. A robust one-step interpolation method is developed when the …
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Spatial modeling for periodic surfaces in manufacturing
… data is generally expensive and time-consuming. Interpolation based on spatial models is a typical approach to cost-effectively acquire high-resolution data. However, conventional modeling methods fail to adequately model the spatial correlation induced by periodicity, and thus their …
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Low rank decompositions for sum of squares optimization
… As compared to the conventional coefficient method of SOS, the formulation has a low rank property in its constraints. The low rank property is desirable as it improves computation speed for calculations of barrier gradient and Hessian assembling in many semidefinite programming (SDP) …
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Numerical solutions to Poisson's equation using radial basis functions
… sciences and engineering fields. Two separate methods are explained for obtaining particular solutions to this equation. The Method of Fundamental Solutions is then used to solve the remaining homogeneous equation in the context of the Method of Particular Solutions and Dual Reciprocity Method. …
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Comparison of Auditory Thresholds Obtained with a Conditioned and an Unconditioned Response
… and thresholds are determined by the Linear Interpolation method. Theoretically, these results provide insight into the sensitivity difference between conditioned and unconditioned responses.
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Computational Simulation of Detonation Waves and Model Reduction for Reacting Flows
… decomposition (POD) 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.
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Impact of Discretization Techniques on Nonlinear Model Reduction and Analysis of the Structure of the POD Basis
… techniques Finite Differences, Finite Element Method and Group Finite Elements are applied and their impact on model reduction techniques, namely Proper Orthogonal Decomposition (POD), Group POD and the Discrete Empirical Interpolation Method (DEIM), is studied. This study is facilitated by …
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Outlier treatments using interolation on Malaysia tourist arrival forecasting: SARIMA and ANN approaches
… 1998 until 2015 and an ARIMA outlier detection method to detect outliers on original data. The detected outliers were regarded as missing values then treated using interpolation method which are Linear Interpolation and Cubic Spline Interpolation methods. In this study, SARIMA model and …
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Characteristic Classification of Walkers via Underfloor Accelerometer Gait Measurements through Machine Learning
… data reduction techniques 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 …
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Unstructured finite volume algorithms for compressible multiphase flow
… successfully run with the diffusion correction methods, variable bounding and proper under-relaxation practices. The applicability of a pressure interpolation method has also been tested with these cases. A procedure for solving compressible flow within a finite volume, pressure correction type …
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Improving the Material Point Method
The material point method (MPM) was designed to solve problems in solid mechanics, and it has been used widely in research and industry. In MPM, the equations of motion are solved on a background grid and Lagrangian material points represent the geometry of the body, carrying history-dependent …
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Validation of methods for adjusting construction cost estimates by project location
… industry has adopted a simple, proximity-based interpolation method which uses the “nearest neighbor” location factor to estimate unknown location factors. Although this approach is widely accepted, its validity has not been statistically substantiated. This study assessed the current method of …
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Super-resolution image reconstruction from low-resolution images
… fusion is introduced before performing interpolation or single-image super-resolution. An accurate image registration is crucial for super-resolution. An image registration approach for super-resolution based on a combination of Scale Invariant Feature Transform (SIFT), Belief …
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Interplay of porous media and fracture stimulation in sedimentary enhanced geothermal systems : Red River Formation, Williston Basin, North Dakota
… and temperature-- were produced by the Kriging interpolation method in ArcGIS. A GIS and geostatistical analysis was completed to show that there is a satisfactory correlative relationship between the surface lineaments and the basement faults in the study area. Consequently, the orientations …
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Using wireless sensors and networks program for chemical particle propagation mapping and chemical source localization
… particle propagation mapping is built using interpolation and extrapolation methods. The interpolation method get the chemical particle path through the sensors, and the extrapolation method get the chemical particle beyond the sensors. Both of them compose of the mapping in the whole …
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