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作者：Afeche, Philipp; Diamant, Adam; Milner, Joseph
作者单位：University of Toronto
摘要：We study a double-sided queue with batch arrivals and abandonment. There are two types of customers, patient ones who queue but may later abandon, and impatient ones who depart immediately if their order is not filled. The system matches units from opposite sides of the queue based on a first-come first-served policy. The model is particularly applicable to a class of alternative trading systems called crossing networks that are increasingly important in the operation of modern financial marke...
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作者：Shi, Jim (Junmin); Katehakis, Michael N.; Melamed, Benjamin; Xia, Yusen
作者单位：New Jersey Institute of Technology; Rutgers University System; Rutgers University Newark; Rutgers University New Brunswick; Rutgers University System; Rutgers University New Brunswick; Rutgers University Newark; University System of Georgia; Georgia State University
摘要：This paper considers a continuous-review, single-product, production-inventory system with a constant replenishment rate, compound Poisson demands, and lost sales. Two objective functions that represent metrics of operational costs are considered: (1) the sum of the expected discounted inventory holding costs and lost-sales penalties, both over an infinite time horizon, given an initial inventory level; and (2) the long-run time average of the same costs. The goal is to minimize these cost met...
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作者：Jasin, Stefanus
作者单位：University of Michigan System; University of Michigan
摘要：We consider a standard dynamic pricing problem with finite inventories, finite selling horizon, and stochastic demands, where the objective of the seller is to maximize total expected revenue. We introduce a simple improvement of the popular static price control known in the literature. The proposed heuristic only requires a single optimization at the beginning of the selling horizon and does not require any reoptimization at all. This provides an advantage over the potentially heavy computati...
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作者：Jiang, Hai; Qi, Xin; Sun, He
作者单位：Tsinghua University
摘要：Recommender systems have been widely used by online stores to suggest items of interest to users. These systems often identify a subset of items from a much larger set that best matches the user's interest. A key concern with existing approaches is overspecialization, which results in returning items that are too similar to each other. Unlike existing solutions that rely on diversity metrics to reduce similarity among recommended items, we propose using choice probability to measure the overal...
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作者：Maxwell, Matthew S.; Ni, Eric Cao; Tong, Chaoxu; Henderson, Shane G.; Topaloglu, Huseyin; Hunter, Susan R.
作者单位：Cornell University; Purdue University System; Purdue University
摘要：Ambulance redeployment is the practice of repositioning ambulance fleets in real time in an attempt to reduce response times to future calls. When redeployment decisions are based on real-time information on the status and location of ambulances, the process is called system-status management. An important performance measure is the long-run fraction of calls with response times over some time threshold. We construct a lower bound on this performance measure that holds for nearly any ambulance...
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作者：Deng, Tianhu; Shen, Zuo-Jun Max; Shanthikumar, J. George
作者单位：Tsinghua University; University of California System; University of California Berkeley; University of California System; University of California Berkeley; Purdue University System; Purdue University
摘要：We study an inventory system wherein a customer may leave the seller's market after experiencing an inventory stockout. Traditionally, researchers and practitioners assume a single penalty cost to model this customer behavior of stockout aversion. Recently, a stream of researchers explicitly model this customer behavior and support the traditional penalty cost approach. We enrich this literature by studying the statistical learning of service-dependent demand. We build and solve four models: a...
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作者：Yang, Nan; Zhang, Renyu
作者单位：Washington University (WUSTL)
摘要：We analyze a finite horizon periodic review joint pricing and inventory management model for a firm that replenishes and sells a product under the scarcity effect of inventory. The demand distribution in each period depends negatively on the sales price and customer-accessible inventory level at the beginning of the period. The firm can withhold or dispose of its on-hand inventory to deal with the scarcity effect. We show that a customer-accessible-inventory-dependent order-upto/dispose-down-t...
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作者：Buson, Erika; Roberti, Roberto; Toth, Paolo
作者单位：University of Bologna
摘要：The fixed-charge transportation problem (FCTP) is a generalization of the transportation problem where an additional fixed cost is paid for sending a flow from an origin to a destination. We propose an iterated local search heuristic based on the utilization of reduced costs for guiding the restart phase. The reduced costs are obtained by applying a lower bounding procedure that computes a sequence of nondecreasing lower bounds by solving a three-index mathematical formulation of the problem s...
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作者：Abedi, Vahideh Sadat; Berman, Oded; Krass, Dmitry
作者单位：California State University System; California State University Fullerton; University of Toronto
摘要：Introduction of a new, innovative product or service is a fundamental problem that managers face regularly. The temporal sales pattern of such a product is often dynamically influenced by word of mouth as well as by marketing and distribution support. Appropriate marketing support strategies must be specified to induce the best sales pattern; however, the success of these strategies is heavily tied to the accessibility of the retail facilities, whether physical stores or virtual ones such as t...
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作者：Bijvank, Marco; Huh, Woonghee Tim; Janakiraman, Ganesh; Kang, Wanmo
作者单位：University of Calgary; University of British Columbia; University of Texas System; University of Texas Dallas; Korea Advanced Institute of Science & Technology (KAIST)
摘要：We study an inventory system under periodic review when excess demand is lost. It is known (Huh et al. 2009) that the best base-stock policy is asymptotically optimal as the lost-sales penalty cost parameter grows. We now show that this result is robust in the following sense: Consider the base-stock level which is optimal in a backordering system (with a per-unit-per-period backordering cost) in which the backorder cost parameter is a function of the lost-sales parameter in the original syste...
