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 41 for “"Interpolation Methods"”.
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Rational Interpolation Methods for Nonlinear Eigenvalue Problems
… of this work connects recent contour integration methods to the theory and practice of system identification. This observation leads us to explore rational interpolation for system realization, producing a Loewner matrix contour integration technique. The second development of this work studies …
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Supplementing Frequency Domain Interpolation Methods for Character Animation
… sequences. An existing approach involves interpolation between motions in the frequency domain, with a blending space defined by a triangle network whose vertices represent input motions. It is this branch of character animation which is supplemented by the methods presented in this …
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Interpolation Methods for the Model Reduction of Bilinear Systems
… reduction. In this work, we introduce two new methods for the model reduction of bilinear systems in an interpolation framework. Our first approach is to construct reduced models that satisfy multipoint interpolation constraints defined on the Volterra kernels of the full model. We show that …
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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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A comparative study between the cubic spline and b-spline interpolation methods in free energy calculations
Numerical methods are essential in computational science, as analytic calculations for large datasets are impractical. Using numerical methods, one can approximate the problem to solve it with basic arithmetic operations. Interpolation is a commonly-used method, inter alia, constructing the value …
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A comparison of geostatistcal interpolation methods for the characterization of background radiation collected on a mobile sensor network in a cloud computing environment
… make detecting illicit radioactive sources with methods relying on simple radiation thresholds challenging. If the background radiation is well characterized, then more precise thresholds can be implemented to lower the rate of false alarms. The background radiation data is often sparse, and …
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Principal Component Regression for Construction of Wing Weight Estimation Models
… data of 41 subsonic transports by three types of interpolation methods---least polynomial interpolation, radial basis function interpolation, and Kriging interpolation. The objective of this thesis is to develop an automatic procedure of using this interpolation methods for construction of an …
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Estimating Root Volumes by Limited Segmentation: A Volumetric Analysis of CBCT and Micro-CT Data
… diagnosis and treatment planning. Expedient interpolation of segmented data that provides clinically acceptable results will encourage clinicians to frequently use CBCT images for clinical/radiographic evaluation. Some of these applications include, quantification of root resorption, …
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Scattered surface data estimation and visualization
In the thesis, two new interpolation methods, i.e., extended piecewise Hardy's method and Bezier triangle method, are developed for scattered surface data and the biquadratic method is developed for regular data set. A new contour method which can generate arbitrarily smooth contour line is also …
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A comparison of spatial interpolation techniques in temperature estimation
… with a variety of stochastic and deterministic interpolation methods to estimate meteorological variables at unsampled locations. Depending on the spatial attributes of the data, accuracies may vary widely among different spatial interpolation methods. The choice of spatial interpolator is …
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Experimental determination of the thermal properties of multi-layered surfaces
… Certified Reduced Basis and General Empirical Interpolation Methods to conduct rapid, inexpensive, computationally simple thermal property estimation for the purpose of material identification. In this specific case, thermal conductivity and diffusivity were the parameters of interest. Towards …
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Outlier treatments using interolation on Malaysia tourist arrival forecasting: SARIMA and ANN approaches
… regarded as missing values then treated using interpolation method which are Linear Interpolation and Cubic Spline Interpolation methods. In this study, SARIMA model and Artificial Neural Network model were used as forecasting tools using the data before and after outlier treatment. The …
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Gappy POD and Temporal Correspondence for Lizard Motion Estimation
… difficult to make temporal correspondences using interpolation methods because of prolonged blurriness, occlusion, or the limited field of vision of our cameras. To work around this, we first make a model data set by making our best guess of the points' locations through these corruptions. Then, …
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Stated and Revealed Preference Valuation of Forest Ecosystems
… commonly conducted non-market value evaluation methods which can also be applied to make evaluation of forest ecosystem. In the application of these evaluation methodologies, there always exists limitation from the data collection and empirical analysis. In the dissertation here, I extend the …
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Real-Time Visualizations of Ocean Data Collected by the NORUS Glider
… obtained through the implementation of various methods taken from scientific visualization, real time rendering, and scattered data interpolation. Methods include visualizations of the surrounding terrain, the ability to map various science data to glyphs, control over color mapping, scattered …
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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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Identifying Biophysical Drivers of Evapotranspiration for Forest Cover in a Mountainous Region
… evapotranspiration (ETr) data, temporal interpolation methods were applied to generate pixel-level daily ET profiles for the entire study area. The main objectives included comparing ET rates across land cover types from the National Land Cover Database (NLCD) and quantifying relative …
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Dynamic amplifiers for analog-to-digital converters
… interrupted regeneration is used to achieve 16 X interpolation factor using four interpolating stages. Thanks to this larger interpolation factor, ADC input capacitance is greatly reduced, which significantly eases the design of ADC driver circuits. The reduction in ADC throughput that accompanies …
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Longer Range Backscatter Communications for IoT
… distance changes. To address this challenge, an interpolation method with several fixed taps and controlled weights is developed for generating desired delays. The contribution of this Doctoral Thesis mainly consists of three parts. 1. Phase noise suppression is fulfilled by using the range …
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A normative approach to designing for evolvability : methods and metrics for considering evolvability in systems engineering
… ETAM leverages intelligent subsampling and interpolation methods to generate acceptable data for a large tradespace, using less computational resources than applying a performance model to every design point would normally take. All three methods were applied to case studies to demonstrate …
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