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 24 for “"MAPPING FUNCTION"”.
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The Asymptotic Behaviour of the Riemann Mapping Function at Analytic Cusps
The well-known Riemann Mapping Theorem states the existence of a conformal map of a simply connected proper domain of the complex plane onto the upper half plane. One of the main topics in geometric function theory is to investigate the behaviour of the mapping functions at the boundary of such …
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Matching remote sensing images.
… used as marking points in defining a geometric mapping function. Once registered, the reference image can be used as an aid to automatic interpretation and as a framework for detecting changes between successive images. A two stage matching procedure is used for this task. In the first part, …
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Learning from minimally labeled data with accelerated convolutional neural networks
… of an Artificial Vision Algorithm is to design a mapping function that takes an image as an input and correctly classifies it into one of the user-determined categories. There are several important properties to be satisfied by the mapping function for visual understanding. First, the function …
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Two-dimensional subsonic compressible flow about an arbitrary Joukowsky airfoil
… arbitrary airfoil shapes for which a convenient mapping function exists, It was found that the method can be carried out with comparative ease as compared to numerical methods of solution and therefore lends itself to engineering use. A particular advantage of the method is that it allows the …
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Dynamic study of factors impacting on combat power
… the problem of determining the multidimensional mapping of the state variables that represent the condition of an entity into the power function is addressed. The methods described provide a means of acquiring this mapping function by the use of a Degraded Power Function (DPF). The DPF provides a …
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Numerical Simulation And Control Of Thermocapillary Convection In Cavities And Liquid Layers
… on a coordinate transformation method, streamfunction vorticity formulation, and second-order finite-difference discretization. The unknown physical domain is mapped onto a rectangular computational domain, with the explicit form of the mapping function not being known. The field variables and …
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Mid-level representations for action recognition and zero-shot learning
… we propose an l₂‚₁-norm based objective function which can simultaneously suppress the noisy signal in the text and learn a function to match the text document and visual features. We also develop an optimization algorithm to efficiently solve the resulting problem. For the third problem, …
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Achieving Data Privacy and Security in Cloud
… practitioners to design new innovative network functions and protocols in a much easier, flexible, and more powerful way. The data plane will ask the control plane to update flow rules when the data plane gets new network packets with which it does not know how to deal with, and the control …
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Synthesis of Offset Dual Reflector Antennas Transforming a Given Feed Illumination Pattern Into a Specified Aperture Distribution
… on the basis of an ad hoc assumption on the mapping function which relates the two reflector surfaces. Next, the solution, thus obtained was corrected by keeping only the subreflector and synthesizing a new main reflector which exactly satisfies the requirement for the aperture phase …
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Crime mapping model based on cloud and spatial data: a case study of Zambia police service
Crime mapping is a strategy used to detect and prevent crime in the police service. The technique involves the use of geographical maps to help crime analysts identify and profile crimes committed in different residential areas, as well as determining best methods of responding. The development of …
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Crime mapping model based on cloud and spatial data: a case study of Zambia police service
Crime mapping is a strategy used to detect and prevent crime in the police service. The technique involves the use of geographical maps to help crime analysts identify and profile crimes committed in different residential areas, as well as determining best methods of responding. The development of …
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Greedy Feature Selection in Tree Kernel Spaces
Tree Kernel functions are powerful tools for solving different classes of problems requiring large amounts of structured information. Combined with accurate learning algorithms, such as Support Vector Machines, they allow us to directly encode rich syntactic data in our learning problems without …
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Energy-efficient multi-criteria packet forwarding in multi-hop wireless networks
… cost metric in the form of a multi-parameter mapping function aggregates decision criteria into a single metric used to rank potential relay candidates. A two-criteria RSRE case study shows that a proper combination of greedy forwarding and link quality leads to higher energy efficiency and …
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Dynamic pricing for airline ancillaries with customer context
… and optimization model using a logistic mapping function; (2) a two-stage model that uses a deep neural network for forecasting, coupled with a revenue maximization technique using discrete exhaustive search; (3) a single-stage end-to-end deep neural network that recommends the optimal …
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Pseudospectral methods in quantum and statistical mechanics
… equations based on the expansion of basis functions defined on a set of grid points. In this thesis, the relationship between the distribution of grid points and the accuracy and convergence of the solution is emphasized. The polynomial and sinc pseudospectral methods are extensively …
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Improved cuckoo search based neural network learning algorithms for data classification
… has been used as a tool for recognizing a mapping function among a known set of input and output examples. These networks can be trained with gradient descent back propagation. The algorithm is not definite in finding the global minimum of the error function since gradient descent may get …
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Predicting performance parameters of analog and mixed-signal circuits using built-in and built-off self test
… A typical SoP encapsulates many of its internal functions, and its production test is performed by application of test signals to the SoP under control of external Automatic Test Equipment (ATE). However it is a problem that the external ATE does not have direct access to all the internal …
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Enriching and designing metaschemas for the UMLS semantic network
… SN's semantic relationship distribution. A mapping function was defined to map the SN's concept configuration to the ESN's concept configuration, avoiding redundant classifications in the ESN's concept configuration. (3) Several new metaschemas for the SN and the ESN were built and evaluated …
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Robust and Blind 3D Watermarking
… centre. Two methods employ the same histogram mapping function as described in chapter 4. The first method minimizes the surface distortion by selecting a candidate point over the neighbourhood which introduces the minimum error. The second method employs the Levenberg-Marquardt optimization …
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Truncation Error Based Mesh Adaptation and its Application to Multi-Mesh CFD
… mesh where it is faster to perform, creating a mapping function for this mesh, and finally evaluating this mapping at a fine enough mesh to meet the error target. The framework is used for 2D Euler and 2D laminar Navier-Stokes problems and shown to be the most cost-effective way to meet a …
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