Now showing items 101-120 of 160

    • Online optimization in routing and scheduling 

      Wagner, Michael R. (Michael Robert), 1978- (Massachusetts Institute of Technology, 2006)
      In this thesis we study online optimization problems in routing and scheduling. An online problem is one where the problem instance is revealed incrementally. Decisions can (and sometimes must) be made before all information ...
    • Online optimization problems 

      Lu, Xin, Ph. D. Massachusetts Institute of Technology. Operations Research Center (Massachusetts Institute of Technology, 2013)
      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 information is ...
    • Operational decisions and learning for multiproduct retail 

      Pixton, Clark (Clark Charles) (Massachusetts Institute of Technology, 2018)
      We study multi-product revenue management problems, focusing on the role of uncertainty in both the seller and the customer decision processes. We begin by considering a logit model framework for personalized revenue ...
    • Operations management in a large online retailer : inventory, scheduling and picking 

      Chen, Chongli Daniel (Massachusetts Institute of Technology, 2018)
      Online retail has grown rapidly in the last decade. Consumers enjoy the convenience of online shopping and home delivery, as well as a vast product assortment. From the business perspective, serving customers directly from ...
    • An Operations Research approach to aviation security 

      Martonosi, Susan Elizabeth (Massachusetts Institute of Technology, 2005)
      Since the terrorist attacks of September 11, 2001, aviation security policy has remained a focus of national attention. We develop mathematical models to address some prominent problems in aviation security. We explore ...
    • Optimal routes for electric vehicles facing uncertainty, congestion, and energy constraints 

      Fontana, Matthew William (Massachusetts Institute of Technology, 2013)
      There are many benefits of owning a battery electric vehicle, including zero tailpipe emissions, potential independence from oil, lower fuel costs, and the option to recharge the battery at home. However, a significant ...
    • Optimal trees for prediction and prescription 

      Dunn, Jack William (Massachusetts Institute of Technology, 2018)
      For the past 30 years, decision tree methods have been one of the most widely-used approaches in machine learning across industry and academia, due in large part to their interpretability. However, this interpretability ...
    • Optimization and equilibrium in dynamic networks and applications in traffic systems 

      Lin, Maokai (Massachusetts Institute of Technology, 2015)
      This thesis discusses optimization problems and equilibrium in networks. There are three major parts of the thesis. In the first part, we discuss optimization in dynamic networks. We focus on two fundamental optimization ...
    • Optimization models and methods for storage yard operations in maritime container terminals 

      Galle, Virgile (Massachusetts Institute of Technology, 2018)
      Container terminals, where containers are transferred between different modes of transportation both on the seaside and landside, are crucial links in intercontinental supply chains. The rapid growth of container shipping ...
    • Optimization of airport terminal-area air traffic operations under uncertain weather conditions 

      Pfeil, Diana Michalek (Massachusetts Institute of Technology, 2011)
      Convective weather is responsible for large delays and widespread disruptions in the U.S. National Airspace System, especially during summer. Although Air Traffic Flow Management algorithms exist to schedule and route ...
    • Optimization of influenza vaccine strain selection 

      Wu, Joseph T. (Joseph Tszkei), 1977- (Massachusetts Institute of Technology, 2003)
      The World Health Organization (WHO) is responsible for making annual vaccine strains recommendation to countries around the globe. However, various studies have found that the WHO vaccine selection strategy has not been ...
    • Optimization under moment, robust, and data-driven models of uncertainty 

      Doan, Xuan Vinh (Massachusetts Institute of Technology, 2010)
      We study the problem of moments and present two diverse applications that apply both the hierarchy of moment relaxation and the moment duality theory. We then propose a moment-based uncertainty model for stochastic ...
    • Optimization under uncertainty in radiation therapy 

      Chan, Timothy Ching-Yee (Massachusetts Institute of Technology, 2007)
      In the context of patient care for life-threatening illnesses, the presence of uncertainty may compromise the quality of a treatment. In this thesis, we investigate robust approaches to managing uncertainty in radiation ...
    • Optimization-based auctions and stochastic assembly replenishment policies for industrial procurement 

      Gallien, Jérémie (Massachusetts Institute of Technology, 2000)
      This thesis describes two applications of Operations Research to the field of industrial procurement, addressing problems encountered in supplier selection and supplier control, respectively. The first part addresses the ...
    • Optimizing paint blocking in an automobile assembly line : an application of specialized TSP's 

      Sokol, Joel Scott, 1971- (Massachusetts Institute of Technology, 1999)
    • Optimizing safety stock placement in general network supply chains 

      Lesnaia, Ekaterina. (Massachusetts Institute of Technology, 2004)
      The amount of safety stock to hold at each stage in a supply chain is an important problem for a manufacturing company that faces uncertain demand and needs to provide a high level of service to its customers. The amount ...
    • Order fulfillment in online retailing : what goes where 

      Xu, Ping Josephine, 1977- (Massachusetts Institute of Technology, 2005)
      We present three problems motivated by order fulfillment in online retailing. First, we focus on one warehouse or fulfillment center. To optimize the storage space and labor, an e-tailer splits the warehouse into two regions ...
    • Personalized diabetes management 

      O'Hair, Allison Kelly (Massachusetts Institute of Technology, 2013)
      In this thesis, we present a system to make personalized lifestyle and health decisions for diabetes management, as well as for general health and diet management. In particular, we address the following components of the ...
    • Portfolio risk minimization under departures from normality 

      Lauprête, Geoffrey J. (Geoffrey Jean), 1972- (Massachusetts Institute of Technology, 2001)
      This thesis revisits the portfolio selection problem in cases where returns cannot be modeled as Gaussian. The emphasis is on the development of financially intuitive and statistically sound approaches to portfolio risk ...
    • Portfolio strategies in supply contracts 

      Martínez-de-Albéniz, Victor, 1978- (Massachusetts Institute of Technology, 2004)
      Traditionally, industrial buyers have focused on long-term contracts for many of their purchasing needs. Recently, however, some high-tech manufacturers have started looking at more flexible contracts for non-strategic ...