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 25 for “"Pattern Search"”.
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Solving dynamic economic dispatch problems using pattern search based methods with particular focus on the West Doha Power Station in Kuwait
… for this purpose – not explored before – was a Pattern Search (PS) algorithm. For illustrative purposes, the proposed PS technique had been applied to various test systems to validate its effectiveness. Furthermore, convergence characteristics and robustness of the method had been assessed …
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Optimal Synthesis of Planar Five-link Mechanisms for the Production of Nonlinear Mechanical Advantage
… the mechanical advantage function. The research shows one potential application, the design of strength machines, where it is important to control force while allowing the user freedom of motion. In the past, closed-form analytical synthesis techniques have been used to design …
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The optimization of simulation models by genetic algorithms:a comparative study
… methods. We compare a new technique, genetic search, to two old techniques: the pattern search and the response surface methodology search. The pattern search uses the Hooke and Jeeves algorithm and the response surface method search uses the code of Dennis Smith. The research compares these …
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The Clarke Derivative and Set-Valued Mappings in the Numerical Optimization of Non-Smooth, Noisy Functions
… theorems for Implicit Filtering and General Pattern Search. Then we show how these results can be used in practice, by executing some numerical computations.
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The allocation of non-identical machines among non-identical servers
… among servers. Both dynamic programming and pattern search are used to solve the resulting optimization problem. Computational experience is presented, along with an analysis of the sensitivity of the model to errors in estimating the values of the parameters of the model.
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Implementation of Adaptive Filter Algorithms for the Suppression of Thermoacoustic Instabilities
… are divided into gradient descent algorithms and pattern searches. The algorithms were tested on three separate platforms. The first was an analog electronic simulator, which uses a second order acoustics model and a first order low pass filter to simulate the flame dynamics of an unstable tube …
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Calibration of a conceptual rainfall-runoff model using simulated annealing
… algorithm based on the Hooke and Jeeves (1961) pattern search method is developed and compared with existing algorithms from the literature.
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A dynamic programming approach to single attribute process control
… decision variables and is optimized using the pattern search procedure. The second model is a dynamic formulation. The optimal decision policies developed using this model vary with the expected state of the process. Several cost components are considered in the mathematical development of each …
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The economic design of multivariate acceptance sampling plans
… characteristics subjected to the control. The pattern search is used to determine the values of the decision variables which minimize the total expected cost of quality control per inspection lot submitted for control. The lot mean, sample mean, and individual unit measurements for each of the …
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Staff allocation and cost analysis: application of a hospital patient flow model
… model is obtained by using SUMT with a pattern search. A third model concerned with predicting hospital revenues is presented. Again, results from the hospital patient flow model are used to present estimates of the expected values and variance of a hospital's revenue. To illustrate the …
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New Approaches to Frequent and Incremental Frequent Pattern Mining
… (DM) is a process for extracting interesting patterns from large volumes of data. It is one of the crucial steps in Knowledge Discovery in Databases (KDD). It involves various data mining methods that mainly fall into predictive and descriptive models. Descriptive models look for patterns, …
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Algorithmic and implementation aspects of on-line calibration of Dynamic Traffic Assignment
… and validated under the state-space formulation. Pattern Search (PS), Conjugate Gradient Method (CG) and Gradient Descent (GD) are presented and validated under the direct optimization formulation. The feasibility of the approach is demonstrated by showing superior accuracy performance over …
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Properties constrained cost optimization of polyester-filler systems with non-linear property-composition relationships
… about the effect of each component were drawn. A pattern search computer program was employed to optimize the composition at the minimum total cost, while satisfying all the constraints. Examples studied included various furniture applications and polyester terrazzo-type floor tiles. The effects …
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Applications of design for value to distributed solar generation in Indian food processing and irrigation
… this design space include genetic algorithms, pattern search, adaptive weighted sums, and Pareto fronts.
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Optimal Design of an Enclosure for a Portable Generator
… used for the study is the Hooke and Jeeves, or pattern search method. This method solved for the optimum material properties in approximately 30 iterations depending on the initial starting points and the desired weighting parameters.
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Shaking and Balance of a Convertible One- and Two-Cylinder Reciprocating Compressor
This research involves the study of a one- and two-cylinder convertible reciprocating Freon compressor for air conditioning or refrigeration purposes. The main concern is the reduction of the vibration (noise) caused during the operation of the compressor. Vibration is a main concern when the …
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Técnicas de otimização da produção para reservatórios de petróleo: abordagens sem uso de derivadas para alocação dinâmica das vazões de produção e injeção
… (Simplex), o de Busca Direta em Padrões (Pattern Search), o Derivative Free Optimization de Conn et al e o Algoritmo Genético. Os estudos foram aplicados a dois casos de características distintas. O primeiro caso apresenta características bem simples e de fácil controle. O outro caso de …
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A primal-dual conjugate subgradient algorithm for large- scale/specially structured linear programming problems
… include space-dilation and box step techniques, pattern search strategies and suboptimization based on complementary slackness conditions. The algorithm is tested on three different transportation problems with additional constraints which are faced by the Freight Equipment Management Program of …
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Support-vector-machine based automatic performance modelling and optimisation for analogue and mixed-signal designs
… introduced into this challenging field. This research has studied the application of SVMs to AMS performance modelling in terms of the computational cost and prediction accuracy. A novel, general performance modelling methodology which could be applied to an arbitrary AMS system has been …
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Induction and permanent-magnet synchronous generators for small-scale power system applications
… the method of symmetrical components and the pattern search method of Hooke and Jeeves is used to analyze a three-phase SEIG which supplies asymmetrical or single-phase loads. Its applicability is tested on various SEIG schemes, including the Steinmetz connection, modified Steinmetz connection …
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