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Dissertations / Theses on the topic 'I/O optimization'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Pieume, Calice Olivier. "Multiobjective optimization approaches in bilevel optimization." Phd thesis, Université Paris-Est, 2011. http://tel.archives-ouvertes.fr/tel-00665605.

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This thesis addresses two important classes of optimization : multiobjective optimization and bilevel optimization. The investigation concerns their solution methods, applications, and possible links between them. First of all, we develop a procedure for solving Multiple Objective Linear Programming Problems (MOLPP). The method is based on a new characterization of efficient faces. It exploits the connectedness property of the set of ideal tableaux associated to degenerated points in the case of degeneracy. We also develop an approach for solving Bilevel Linear Programming Problems (BLPP). It

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2

Ruan, Ning. "Global optimization for nonconvex optimization problems." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/1936.

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Duality is one of the most successful ideas in modern science [46] [91]. It is essential in natural phenomena, particularly, in physics and mathematics [39] [94] [96]. In this thesis, we consider the canonical duality theory for several classes of optimization problems.The first problem that we consider is a general sum of fourth-order polynomial minimization problem. This problem arises extensively in engineering and science, including database analysis, computational biology, sensor network communications, nonconvex mechanics, and ecology. We first show that this global optimization problem

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3

Gedin, Sebastian. "Securities settlement optimization using an optimization software solution." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279295.

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Many people have engaged in the trading of stocks and other securities, but few are aware of how the transactions are executed. The process of transferring the ownership of securities, often in exchange for cash, is called securities settlement. If the parties involved in the transaction have the assets that they are obligated to deliver at the time of settlement, securities settlement is straightforward. But if the securities settlement system is faced with a set of transactions, in which some party fails to meet their obligation, some transactions will fail to settle. Since the receiving par

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4

Sim, Melvyn 1971. "Robust optimization." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17725.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, Operations Research Center, 2004.<br>Includes bibliographical references (p. 169-171).<br>We propose new methodologies in robust optimization that promise greater tractability, both theoretically and practically than the classical robust framework. We cover a broad range of mathematical optimization problems, including linear optimization (LP), quadratic constrained quadratic optimization (QCQP), general conic optimization including second order cone programming (SOCP) and semidefinite optimization (SDP), mixed

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Lopes, David Granja. "Collections Optimization." Master's thesis, Instituto Superior de Economia e Gestão, 2013. http://hdl.handle.net/10400.5/6505.

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Mestrado em Decisão Económica e Empresarial<br>Este trabalho debruça-se sobre a otimização do transporte de componentes automóveis. Começa-se por fazer uma revisão bibliográfica e de seguida um enquadramento da situação a estudar, bem como da empresa onde será aplicado (Volkswagen Autoeuropa). É desenvolvido um modelo matemático que permite identificar as rotas ótimas. O objetivo principal deste trabalho é a identificação de rotas otimizadas que permitam o aumento da eficiência, económica e operacional, da cadeia de abastecimento da Volkswagen Autoeuropa. Os resultados foram bastantes promisso

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Bylund, Johanna. "Collateral Optimization." Thesis, Umeå universitet, Institutionen för fysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-148006.

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7

Yu, Hao. "Run-time optimization of adaptive irregular applications." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/1285.

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Compared to traditional compile-time optimization, run-time optimization could oﬀer signiﬁcant performance improvements when parallelizing and optimizing adaptive irregular applications, because it performs program analysis and adaptive optimizations during program execution. Run-time techniques can succeed where static techniques fail because they exploit the characteristics of input data, programs' dynamic behaviors, and the underneath execution environment. When optimizing adaptive irregular applications for parallel execution, a common observation is that the effectiveness of the optimizin

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Arayapan, Khanittha, and Piyanut Warunyuwong. "Logistics Optimization: Application of Optimization Modeling in Inbound Logistics." Thesis, Mälardalen University, School of Innovation, Design and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-6213.

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<p><p>To be a market leader, low cost and responsiveness are the key success factors. Logistics activities create high cost reducing competitiveness of the company, especially for the remote production base. Thus, logistics activities which are delivery planning, freight forwarder and delivery mode selection must be optimized. The focusing area of this paper is inbound logistics due to its big proportion in the total cost and involvement with several stakeholders. The optimization theory and Microsoft Excel’s Solver is used to create the standard optimization tools since it is an efficient and

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GOUCHER, DANIEL. "Database optimization : An investigation of code-based optimization techniques." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-153754.

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In this report database optimization is investigated with a focus on the area which can be implemented with software rather than hardware.The reason for this specialization is that software optimization is an area that all developers have the resources to implement.To investigate these optimization techniques I have first presented the theory behind different optimization techniques including indices, caching and materialized views. A brief explanation on how these techniques can be implemented in MySQL and PHP is then given. With the help of these theories a set of tests have been designed to

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10

Aggarwal, Varun. "Analog circuit optimization using evolutionary algorithms and convex optimization." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40525.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.<br>Includes bibliographical references (p. 83-88).<br>In this thesis, we analyze state-of-art techniques for analog circuit sizing and compare them on various metrics. We ascertain that a methodology which improves the accuracy of sizing without increasing the run time or the designer effort is a contribution. We argue that the accuracy of geometric programming can be improved without adversely influencing the run time or increasing the designer's effort. This is facilitated by dec

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Olsson, Per-Magnus. "Methods for Network Optimization and Parallel Derivative-free Optimization." Doctoral thesis, Linköpings universitet, Optimeringslära, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-104110.

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This thesis is divided into two parts that each is concerned with a specific problem. The problem under consideration in the first part is to find suitable graph representations, abstractions, cost measures and algorithms for calculating placements of unmanned aerial vehicles (UAVs) such that they can keep one or several static targets under constant surveillance. Each target is kept under surveillance by a surveillance UAV, which transmits information, typically real time video, to a relay UAV. The role of the relay UAV is to retransmit the information to another relay UAV, which retransmits

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Sheehan, Shane P. "Spacecraft Trajectory Optimization Suite (STOPS): Optimization of Low-Thrust Interplanetary Spacecraft Trajectories Using Modern Optimization Techniques." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1901.

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The work presented here is a continuation of Spacecraft Trajectory Optimization Suite (STOpS), a master’s thesis written by Timothy Fitzgerald at California Polytechnic State University, San Luis Obispo. Low-thrust spacecraft engines are becoming much more common due to their high efficiency, especially for interplanetary trajectories. The version of STOpS presented here optimizes low-thrust trajectories using the Island Model Paradigm with three stochastic evolutionary algorithms: the genetic algorithm, differential evolution, and particle swarm optimization. While the algorithms used here we

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Fitzgerald, Timothy J. "Spacecraft Trajectory Optimization Suite (STOpS): Optimization of Multiple Gravity Assist Spacecraft Trajectories Using Modern Optimization Techniques." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1503.

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In trajectory optimization, a common objective is to minimize propellant mass via multiple gravity assist maneuvers (MGAs). Some computer programs have been developed to analyze MGA trajectories. One of these programs, Parallel Global Multiobjective Optimization (PaGMO), uses an interesting technique known as the Island Model Paradigm. This work provides the community with a MATLAB optimizer, STOpS, that utilizes this same Island Model Paradigm with five different optimization algorithms. STOpS allows optimization of a weighted combination of many parameters. This work contains a study on opti

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Zhou, Fangjun. "Nonmonotone methods in optimization and DC optimization of location problems." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/21777.

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Boissier, Mathilde. "Coupling structural optimization and trajectory optimization methods in additive manufacturing." Thesis, Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAX084.

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Cette thèse porte sur l’optimisation des trajectoires de lasage pour la fabrication additive sur lit de poudre, ainsi que leur lien avec la géométrie de la pièce à construire. L’état de l’art est principalement constitué par des trajectoires basées sur des motifs, dont l’impact sur les propriétés mécaniques des objets finaux est quantifié. Cependant, peu d’analyses permettent de relier leur pertinence à la forme de la pièce elle-même. Nous proposons dans ce travail une approche systématique visant à optimiser la trajectoire sans restriction a priori. Le problème d’optimisation consiste à fusio

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Sghir, Inès. "A Multi-Agent based Optimization Method for Combinatorial Optimization Problems." Thesis, Angers, 2016. http://www.theses.fr/2016ANGE0009/document.

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Nous élaborons une approche multi-agents pour la résolution des problèmes d’optimisation combinatoire nommée MAOM-COP. Elle combine des métaheuristiques, les systèmes multi-agents et l’apprentissage par renforcement. Les heuristiques manquent d’une vue d’ensemble sur l’évolution de la recherche. Notre objectif consiste à utiliser les systèmes multi-agents pour créer des méthodes de recherche coopératives. Ces méthodes explorent plusieurs métaheuristiques. MAOM-COP est composée de plusieurs agents qui sont l’agent décideur, les agents intensificateurs et les agents diversificateurs (agents croi

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Yu, Feng. "Constructing Accurate Synopses for Database Query Optimization and Re-optimization." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/dissertations/709.

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Fast and accurate estimations for complex queries are profoundly beneficial for large databases with heavy workloads. The most widely adopted query optimizers use synopses to tune up the databases in manners of optimization and re-optimization. From Chapter 1 to Chapter 3, we focus on the synopses for query optimization. We propose a statistical summary for a database, called CS2 (Correlated Sample Synopsis), to provide rapid and accurate result size estimations for all queries with joins and arbitrary selections. Unlike the state-of-the-art techniques, CS2 does not completely rely on simple

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Jensen, Marina. "Conversion Rate Optimization : A Qualitative Approach to Identifying Optimization Barriers." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Datateknik och informatik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-44487.

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This thesis examined the question “What barriers are preventing Swedish companies from performing a structured conversion rate optimization process?”. As the purpose is to obtain an understanding of what is preventing companies from successfully execute conversion rate optimization (CRO). Given that CRO is an important part in most digital marketing activities. And despite increase in budget and importance in marketing, resource constraint continues to be the biggest obstacle. The method employed to investigate this question was qualitative interviews with participants who worked with website

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Müller, Stephan. "Constrained portfolio optimization /." [S.l.] : [s.n.], 2005. http://aleph.unisg.ch/hsgscan/hm00133325.pdf.

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Jayaraman, Shankar. "Dynamic cutback optimization." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33812.

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The focus of this thesis is to develop and evaluate a cutback noise minimization process - also known as dynamic cutback optimization - that considers engine spool down during thrust cutback and is consistent with ICAO and FAR Part 36 noise certification procedures. Simplified methods for flyover EPNL prediction used by propulsion designers assume instantaneous thrust reduction and do not take into account the spooling down of the engine during the cutback procedure. The thesis investigates if there is an additional noise benefit that can be gained by modeling the engine spool down behavior.

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Li, Zhuo. "Fast interconnect optimization." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3250.

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As the continuous trend of Very Large Scale Integration (VLSI) circuits technology scaling and frequency increases, delay optimization techniques for interconnect are increasingly important for achieving timing closure of high performance designs. For the gigahertz microprocessor and multi-million gate ASIC designs it is crucial to have fast algorithms in the design automation tools for many classical problems in the field to shorten time to market of the VLSI chip. This research presents algorithmic techniques and constructive models for two such problems: (1) Fast buffer insertion for delay

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Gopinath, Varun. "Industrial Silo Optimization." Thesis, Linköpings universitet, Maskinkonstruktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-67645.

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This thesis aims to build a working design-analyze-optimize methodology for Alstom Power Sweden AB at Växjö, Sweden. In order to be profitable in today’s competitive industrial product market, it is necessary to engineer optimized products fast. This involves CAD design and FEA analysis to work within an optimization routine in a seamless fashion which will result in a more profitable product. This approach can be understood as a model-based design, where the 3D CAD data is central to the product life cycle. The present approach provides many benefits to a company because of the use of a centr

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Andersson, Joakim, and Jimmy Bertilsson. "SETUP TIME OPTIMIZATION." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-23661.

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Sammanfattning Emhart Glass AB är världsledande företag inom glasflasktillverkning. De konstruerar automatiserade maskiner som formar glasflaskor. I Sverige finns det två fabriker, en i Örebro och en i Sundsvall. I Örebro tillverkar man främst reservdelar och nya delar till maskinerna medan man i Sundsvall monterar ihop maskinerna. Det finns totalt 15 olika fabriker och kontor över världen med huvudkontor i schweiziska Cham. Eftersom Emhart Glass Örebro har för långa ställtider på några av deras maskiner ska det undersökas hur omställningsarbetet går till i dagsläget och hur omställning

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Puhle, Michael. "Bond portfolio optimization." Berlin Heidelberg Springer, 2007. http://d-nb.info/985928115/04.

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Ruziyeva, Alina. "Fuzzy Bilevel Optimization." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2013. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-106378.

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In the dissertation the solution approaches for different fuzzy optimization problems are presented. The single-level optimization problem with fuzzy objective is solved by its reformulation into a biobjective optimization problem. A special attention is given to the computation of the membership function of the fuzzy solution of the fuzzy optimization problem in the linear case. Necessary and sufficient optimality conditions of the the convex nonlinear fuzzy optimization problem are derived in differentiable and nondifferentiable cases. A fuzzy optimization problem with both fuzzy objectives

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Sogand, Yousefbeigi. "Wind Farm Optimization." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615685/index.pdf.

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In this thesis, a mixed integer linear program is used to formulate the optimization process of a wind farm. As a start point, a grid was superimposed into the wind farm, in which grid points represent possible wind turbine locations. During the optimization process, proximity and wind interference between wind turbines were considered in order to found the power loss of the wind farm. Power loss was analyzed by using wind interference coefficient, which is a function of wind intensity interference factor (WIIF), weibull distribution and power of the wind turbines. Two different programs<br>Ge

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Stettner, Martin. "Tiltrotor multidisciplinary optimization." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/12996.

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Van, Rooyen Marchand. "Stable parametric optimization." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=70259.

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This thesis is a study of convex parametric programs on regions of stability. The main tools are complete characterizations of optimality without constraint qualifications and a theory of point-to-set mappings. We prove various new results that describe the Lipschitzian behaviour of the optimal value function and optimal solution point-to-set mapping. Then we show how these results can be used in the algorithms of Input Optimization, and other applications. These applications include new results on structural optima in nonlinear programming, determination of optimal trade-off directions in int

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Law, S. L. "Financial optimization problems." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426391.

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The major objective of this thesis is to study optimization problems in finance. Most of the effort is directed towards studying the impact of transaction costs in those problems. In addition, we study dynamic meanvariance asset allocation problems. Stochastic HJB equations, Pontryagin Maximum Principle and perturbation analysis are the major mathematical techniques used. In Chapter 1, we introduce the background literature. Following that, we use the Pontryagin Maximum Principle to tackle the problem of dynamic mean-variance asset allocation and rediscover the doubling strategy. In Chapter 2,

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Abdi, Mohammad Javad. "Cardinality optimization problems." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4620/.

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In this thesis, we discuss the cardinality minimization problem (CMP) and the cardinality constraint problem. Due to the NP-hardness of these problems, we discuss different computational and relaxation techniques for finding an approximate solution to these problems. We also discuss the l\(_1\)-minimization as one of the most efficient methods for solving CMPs, and we demonstrate that the l\(_1\)-minimization uses a kind of weighted l\(_2\)-minimization. We show that the reweighted l\(_j\)-minimization (j≥1) is very effective to locate a sparse solution to a linear system. Next, we show how to

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Faramarzi, Oghani Sohrab. "Clinical laboratory optimization." Thesis, Lille 1, 2018. http://www.theses.fr/2018LIL1I072.

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Cette thèse porte sur l'optimisation de la conception et des décisions opérationnelles des laboratoires d'analyses médicales. Dans cette thèse, un outil d'aide à la décision comprenant des modèles mathématiques, un algorithme heuristique et un modèle de simulation personnalisé est développé pour aider les décideurs à résoudre les principaux problèmes stratégiques, tactiques et opérationnels en conception et gestion des opérations des laboratoires d'analyses médicales. Dans cette thèse, la sélection des machines et la disposition des instruments sont étudiées en tant que principaux problèmes st

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Singer, Adam B. "Global dynamic optimization." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28662.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2004.<br>Includes bibliographical references (p. 247-256).<br>(cont.) on a set composed of the Cartesian product between the parameter bounds and the state bounds. Furthermore, I show that the solution of the differential equations is affine in the parameters. Because the feasible set is convex pointwise in time, the standard result that a convex function composed with an affine function remains convex yields the desired result that the integrand is convex under composition. Additionally, methods are develop

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Xiong, Ying S. M. Massachusetts Institute of Technology. "Racing line optimization." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/64669.

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Thesis (S.M.)--Massachusetts Institute of Technology, Computation for Design and Optimization Program, 2010.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (p. 112-113).<br>Although most racers are good at controlling their cars, world champions are always talented at choosing the right racing line while others mostly fail to do that. Optimal racing line selection is a critical problem in car rac

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Lu, Xin Ph D. Massachusetts Institute of Technology Operations Research Center. "Online optimization problems." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82724.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, Operations Research Center, 2013.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 149-153).<br>In this thesis, we study online optimization problems in routing and allocation applications. Online problems are problems where information is revealed incrementally, and decisions must be made before all informat

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Teo, Kwong Meng. "Nonconvex robust optimization." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40303.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, Operations Research Center, 2007.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 133-138).<br>We propose a novel robust optimization technique, which is applicable to nonconvex and simulation-based problems. Robust optimization finds decisions with the best worst-case performance under uncertainty. If constraints are present, decisions should also be feasible under pe

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Sadownick, Ronald 1960. "Helicopter configuration optimization." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/82683.

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Thesis (S.M.)--Massachusetts Institute of Technology, System Design & Management Program, February 2001.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (leaf 102).<br>by Ronald Sadownick.<br>S.M.

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Bailey, Drake (William Drake), and Daniel Skempton. "Communicating optimization results." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81092.

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Thesis (M. Eng. in Logistics)--Massachusetts Institute of Technology, Engineering Systems Division, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 76-79).<br>With global supply chains becoming increasingly complex, leading companies are embracing optimization software tools to help them structure and coordinate their supply chains. With an array of choices available, many organizations opt for one of the numerous off-the-shelf products. Others choose instead to create their own bespoke optimization tools. While this custom approach affords greater ver

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Simmen, Martin Walter. "Neural network optimization." Thesis, University of Edinburgh, 1992. http://hdl.handle.net/1842/12942.

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Combinatorial optimization problems arise throughout science, industry, and commerce. The demonstration that analogue neural networks could, in principle, rapidly find near-optimal solutions to such problems - many of which appear computationally intractable - was important both for the novelty of the approach and because these networks are potentially implementable in parallel hardware. However, subsequent research, conducted largely on the travelling salesman problem, revealed problems regarding the original network's parameter sensitivity and tendency to give invalid states. Although this h

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Speicher, Maximilian. "Search Interaction Optimization." Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-208102.

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Over the past 25 years, search engines have become one of the most important, if not the entry point of the World Wide Web. This development has been primarily due to the continuously increasing amount of available documents, which are highly unstructured. Moreover, the general trend is towards classifying search results into categories and presenting them in terms of semantic information that answer users' queries without having to leave the search engine. With the growing amount of documents and technological enhancements, the needs of users as well as search engines are continuously evolvin

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Li, Xing-Si. "Entropy and optimization." Thesis, University of Liverpool, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235500.

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Elsayed, M. A. N. "Aircraft trajectory optimization." Thesis, Loughborough University, 1985. https://dspace.lboro.ac.uk/2134/32873.

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A typical aircraft flight consists of three phases, namely climb, cruise and descent. The purpose of this research was to study the control schedules for a transport aircraft which would result in least fuel expenditure in each flight-segment.

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Hillberg, Alexander, and Marcus Olmarker. "Optimization of Flexplate." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-37051.

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From 2019, all new Volvo Powertrains will be electrified, also including ICE based Powertrains. In the ICE based Powertrains with automatic transmission, a flexplate is connecting the crank shaft to the automatic transmission to transfer the power. The flexplate needs to handle torque peaks from the combustion, crank shaft whirl and axial forces generated by the torque converter. The combustion torque load is maximized at every ignition, but the load is also dependent on engine speed/load and gearbox shifts. All these loads applied to the flexplate means that the plate will be exposed to high

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Mesgarpour, Mohammad. "Airport runway optimization." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/366012/.

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This thesis considers the scheduling of aircraft landing and take-off problems on a single runway where aircraft must respect various operational constraints. The aim is to introduce generic models and solution approaches that can be implemented in practice. Existing solution methods and techniques of airport runway optimization have been reviewed. Several solution methods such as mixed integer programming, dynamic programming, iterated descent local search and simulated annealing are proposed for the scheduling of aircraft landings in the static and dynamic environment. A multi-objective form

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Flach, Guilherme Augusto. "Clock mesh optimization." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/34773.

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Malhas de relógio são arquiteturas de rede de relógio adequadas para distribuir confiavelmente o sinal de relógio na presença de variações de processo e ambientais. Tal propriedade se torna muito importante nas tecnologias submicrônicas onde variações têm um papel importante. A confiabilidade da malha de relógio é devido aos caminhos redundantes conectando o sinal de relógio até os receptores de forma que variações afetando um caminho possam ser compensadas pelos outros caminhos. A confiabilidade vem ao custo de mais consumo de potência e fiação. Desta forma fica claro o balanceamento necessár

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Devarakonda, SaiPrasanth. "Particle Swarm Optimization." University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1335827032.

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Cheng, Jianqiang. "Stochastic Combinatorial Optimization." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112261.

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Dans cette thèse, nous étudions trois types de problèmes stochastiques : les problèmes avec contraintes probabilistes, les problèmes distributionnellement robustes et les problèmes avec recours. Les difficultés des problèmes stochastiques sont essentiellement liées aux problèmes de convexité du domaine des solutions, et du calcul de l’espérance mathématique ou des probabilités qui nécessitent le calcul complexe d’intégrales multiples. A cause de ces difficultés majeures, nous avons résolu les problèmes étudiées à l’aide d’approximations efficaces.Nous avons étudié deux types de problèmes stoch

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Cha, Kyungduck. "Cancer treatment optimization." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22604.

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Thesis (Ph. D.)--Industrial and Systems Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Lee, Eva K.; Committee Member: Barnes, Earl; Committee Member: Hertel, Nolan E.; Committee Member: Johnson, Ellis; Committee Member: Monteiro, Renato D.C.

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Allan, John S. Nekimken Kyle J. Weills Spencer B. "Pump sequencing optimization /." Click here to view, 2009. http://digitalcommons.calpoly.edu/mesp/7.

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Thesis (B.S.)--California Polytechnic State University, 2009.<br>Project advisor: Tom Mase. Title from PDF title page; viewed on Jan. 13, 2010. Includes bibliographical references. Also available on microfiche.

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Nasiri, Faranak. "Ambulance Optimization Allocation." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/theses/1462.

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Facility Location problem refers to placing facilities (mostly vehicles) in appropriate locations to yield the best coverage with respect to other important factors which are specific to the problem. For instance in a fire station some of the important factors are traffic time, distribution of stations, time of the service and so on. Furthermore, budget limitation, time constraints and the great importance of the operation, make the optimum allocation very complex. In the past few years, several research in this area have been done to help managers by designing some effective algorithm to allo

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Ramachandran, Selvaraj. "Hypoid gear optimization." PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/4419.

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A hypoid gear optimization procedure using the method of feasible directions has been developed. The objective is to reduce the gear set weight with bending strength, contact strength and facewidth-diametral pitch ratio as constraints. The objective function weight, is calculated from the geometric approximation of the volume of the gear and pinion. The design variables selected are number of gear teeth, diametral pitch, and facewidth. The input parameters for starting the initial design phase are power to be transmitted, speed, gear ratio, type of application, mounting condition, type of load

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