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作者:Vis, Iris F. A.; Roodbergen, Kees Jan
作者单位:Vrije Universiteit Amsterdam; Erasmus University Rotterdam; Erasmus University Rotterdam - Excl Erasmus MC
摘要:We consider the problem of scheduling the storage and retrieval of containers in the storage area of a container terminal. Some arcs in the underlying directed network must be visited; other arcs may be-but need not be-visited. We can, therefore, consider this problem to be a special case of the directed rural postman problem. We show that this problem can be reformulated as an asymmetric Steiner traveling salesman problem. This reformulation can be efficiently solved to optimality by a combin...
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作者:Erera, Alan L.; Morales, Juan C.; Savelsbergh, Martin
作者单位:University System of Georgia; Georgia Institute of Technology
摘要:We develop a robust optimization framework for dynamic empty repositioning problems modeled using time-space networks. In such problems, uncertainty arises primarily from forecasts of future supplies and demands for assets at different time epochs. The proposed approach models such uncertainty using intervals about nominal forecast values and a limit on the systemwide scaled deviation from the nominal forecast values. A robust repositioning plan is defined as one in which the typical flow bala...
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作者:Yang, Zehua; Chen, Victoria C. P.; Chang, Michael E.; Sattler, Melanie L.; Wen, Aihong
作者单位:Abbott Laboratories; University of Texas System; University of Texas Arlington; University System of Georgia; Georgia Institute of Technology; University of Texas System; University of Texas Arlington
摘要:In this paper, an intelligent decision-making framework (DMF) is developed to help decision makers identify cost-effective ozone control policies. High concentrations of ozone at the ground level continue to be a serious problem in numerous U. S. cities. Our DMF searches for dynamic and targeted control policies that require a lower total reduction of emissions than current control strategies based on the trial and error approach typically employed by state government decision makers. Our DMF ...
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作者:Bachmat, Eitan; Berend, Daniel; Sapir, Luba; Skiena, Steven; Stolyarov, Natan
作者单位:Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; Ben-Gurion University of the Negev; State University of New York (SUNY) System; Stony Brook University
摘要:We model and analyze the process of passengers boarding an airplane. We show how the model yields closed-form estimates for the expected boarding time in many cases of interest. Comparison of our computations with previous work, based on discrete-event simulations, shows a high degree of agreement. Analysis of the model reveals a clear link between the efficiency of various airline boarding policies and a congestion parameter that is related to interior airplane design parameters, such as dist...
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作者:Baston, Vic; Kikuta, Kensaku
作者单位:University of Southampton; University of Hyogo
摘要:This paper concerns a two-person zero-sum game between an infiltrator and a defender. The infiltrator wants to pass through a channel, while the defender wants to detect the infiltrator by laying static underwater devices across the channel. Previous work assumed the infiltrator has zero width. We consider an extension when the infiltrator has a positive width, and a proportion of its width needs to be detected by the underwater devices for a positive identification. We show that the positive-...
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作者:Anupindi, Ravi; Bernstein, Fernando; Chick, Steve; Cook, Wade; Hong, L. Jeff; Kapuscinski, Roman; Rosling, Kaj; Staum, Jeremy
作者单位:University of Michigan System; University of Michigan; Duke University; York University - Canada; INSEAD Business School; Northwestern University; Vaxjo University; Linnaeus University; Hong Kong University of Science & Technology
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作者:Lim, Andrew; Rodrigues, Brian; Xu, Zhou
作者单位:Hong Kong Polytechnic University
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作者:Simchi-Levi, David
作者单位:Massachusetts Institute of Technology (MIT)
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作者:Guide, V. Daniel R., Jr.; Van Wassenhove, Luk N.
作者单位:Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; INSEAD Business School
摘要:The purpose of this paper is to introduce the reader to the field of closed-loop supply chains with a strong business perspective, i.e., we focus on profitable value recovery from returned products. It recounts the evolution of research in this growing area over the past 15 years, during which it developed from a narrow, technically focused niche area to a fully recognized subfield of supply chain management. We use five phases to paint an encompassing view of this evolutionary process for the...
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作者:Stonebraker, Jeffrey S.; Keefer, Donald L.
作者单位:University of Denver; Arizona State University; Arizona State University-Tempe
摘要:This paper describes the evolution and application of a novel approach for forecasting drug demand in markets where supply limitations have significantly curtailed sales volumes and thus reduced the usefulness of conventional sales-based forecasting methods. This occurs frequently with biological ( biotech) drugs. We use methods from decision analysis to explicitly model the variability in epidemiological data together with the variability in treatment modalities to estimate latent therapeutic...