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作者：Barnhart, Cynthia; Fearing, Douglas; Vaze, Vikrant
作者单位：Massachusetts Institute of Technology (MIT); University of Texas System; University of Texas Austin; Dartmouth College
摘要：Many of the existing methods for evaluating an airline's on-time performance are based on flight-centric measures of delay. However, recent research has demonstrated that passenger delays depend on many factors in addition to flight delays. For instance, significant passenger delays result from flight cancellations and missed connections, which themselves depend on a significant number of factors. Unfortunately, lack of publicly available passenger travel data has made it difficult for researc...
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作者：Care, Algo; Garatti, Simone; Campi, Marco C.
作者单位：University of Melbourne; Polytechnic University of Milan; University of Brescia
摘要：The scenario approach is a recently introduced method to obtain feasible solutions to chance-constrained optimization problems based on random sampling. It has been noted that the sample complexity of the scenario approach rapidly increases with the number of optimization variables and this may pose a hurdle to its applicability to medium-and large-scale problems. We here introduce the Fast Algorithm for the Scenario Technique, a variant of the scenario optimization algorithm with reduced samp...
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作者：Bagchi, Aniruddha; Paul, Jomon Aliyas
作者单位：University System of Georgia; Kennesaw State University
摘要：This model examines the role of intelligence gathering and screening in providing airport security. We analyze this problem using a game between the government and a terrorist. By investing in intelligence gathering, the government can improve the precision of its information. In contrast, screening can be used to search a passenger and thereby deter terrorist attacks. We determine the optimal allocation of resources between these two strategies wherein we model the role of intelligence using ...
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作者：Davis, James M.; Gallego, Guillermo; Topaloglu, Huseyin
作者单位：Cornell University; Columbia University
摘要：We study a class of assortment optimization problems where customers choose among the offered products according to the nested logit model. There is a fixed revenue associated with each product. The objective is to find an assortment of products to offer so as to maximize the expected revenue per customer. We show that the problem is polynomially solvable when the nest dissimilarity parameters of the choice model are less than one and the customers always make a purchase within the selected ne...
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作者：Caprara, Alberto; Galli, Laura; Stiller, Sebastian; Toth, Paolo
作者单位：University of Bologna; University of Pisa; Technical University of Berlin
摘要：Robust optimisation is a well-established concept to deal with uncertainty. In particular, recovery-robust models are suitable for real-world contexts, where a certain amount of recovery-although limited-is often available. In this paper we describe a general framework to optimise event-based problems against delay propagation. We also present a real-world application to train platforming in the Italian railways in order to show the practical effectiveness of our framework.
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作者：Chen, Xin; Pang, Zhan; Pan, Limeng
作者单位：Nanjing University; University of Illinois System; University of Illinois Urbana-Champaign; Lancaster University
摘要：We analyze a joint pricing and inventory control problem for a perishable product with a fixed lifetime over a finite horizon. In each period, demand depends on the price of the current period plus an additive random term. Inventories can be intentionally disposed of, and those that reach their lifetime have to be disposed of. The objective is to find a joint pricing, ordering, and disposal policy to maximize the total expected discounted profit over the planning horizon taking into account li...
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作者：Lien, Robert W.; Iravani, Seyed M. R.; Smilowitz, Karen R.
作者单位：Northwestern University
摘要：This paper studies a sequential resource allocation problem motivated by distribution operations of a nonprofit organization. The alternate objectives that arise in nonprofit (as opposed to commercial) operations lead to new variations on traditional problems in operations research and inventory management. Specifically, we consider the problem of distributing a scarce resource to meet customers' demands that are observed sequentially. An allocation policy that seeks to maximize profit may lea...
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作者：Olsen, Tava Lennon; Parker, Rodney P.
作者单位：University of Auckland; University of Chicago
摘要：We provide a review of the types of equilibria typically found in operations management inventory papers and a discussion on when the commonly used stationary infinite-horizon (open-loop) equilibrium may be sufficient for study. We focus particularly on order-up-to and basestock equilibria in the context of inventory duopolies. We give conditions under which the stationary infinite-horizon equilibrium is also a Markov perfect (closed-loop) equilibrium. These conditions are then applied to thre...
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作者：Kanet, John J.
作者单位：University System of Ohio; University of Dayton
摘要：In 1969 H. Emmons provided three theorems (Emmons 1-3) for determining precedence relations between pairs of jobs for the single-machine tardiness problem. We show here a fourth straightforward theorem that uses the information when the jobs in the pair are both known to precede a third job in an optimum sequence. The new theorem augments the three Emmons theorems and is shown to be a generalization of a theorem by Elmaghraby.
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作者：Chou, Mabel C.; Chua, Geoffrey A.; Zheng, Huan
作者单位：National University of Singapore; Nanyang Technological University; Shanghai Jiao Tong University
摘要：Production postponement, the strategy to hold reserved production capacity that can be deployed based on actual demand signals, is often used to mitigate supply-demand mismatch risk. The effectiveness of this strategy depends crucially on the ease, or flexibility, in deploying the reserved capacity to meet product demands. Existing literature assumes that the reserved capacity is fully flexible, i.e., capable of being deployed to meet the demand of any item in a multiproduct system. Little is ...
