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作者：Liu, Fang; Lewis, Tracy R.; Song, Jing-Sheng; Kuribko, Nataliya
作者单位：Nanyang Technological University; Duke University
摘要：We consider a capacity provider and a group of independent buyers who partner to share a scarce but expensive-to-build capacity over a finite horizon under privately informed demand conditions. At the beginning of the time horizon, the capacity provider must invest in building capacity; all members may invest in increasing their own and possibly other members' market sizes. Then each member observes and updates its private, history-dependent demand information over time. Because the value of t...
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作者：Bimpikis, Kostas; Candogan, Ozan; Saban, Daniela
作者单位：Stanford University
摘要：We explore spatial price discrimination in the context of a ride-sharing platform that serves a network of locations. Riders are heterogeneous in terms of their destination preferences and their willingness to pay for receiving service. Drivers decide whether and where to provide service so as to maximize their expected earnings given the platform's pricing and compensation policy. Our findings highlight the impact of the demand pattern on the platform's prices, profits, and the induced consum...
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作者：Eisenhandler, Ohad; Tzur, Michal
作者单位：Tel Aviv University
摘要：Food rescue-the collection of perishable products from food suppliers who are willing to make donations, and their distribution to welfare agencies that serve individuals in need-has become increasingly widespread in recent years. This phenomenon is a result of economic crises, but it is also encouraged by the tax and good image it provides to donor companies. The problem we study in this paper focuses on the logistic challenges of a food bank that on a daily basis uses vehicles of limited cap...
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作者：Cai, Ning; Kou, Steven
作者单位：Hong Kong University of Science & Technology; Boston University
摘要：Many data are sensitive in areas such as finance, economics, and other social sciences. We propose an ER (encryption and recovery) algorithm that allows a central administration to do statistical inference based on the encrypted data, while still preserving each party's privacy even for a colluding majority in the presence of cyber attack. We demonstrate the applications of our algorithm to linear regression, logistic regression, maximum likelihood estimation, the method of moments, and estima...
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作者：Chehrazi, Naveed; Cipriano, Lauren E.; Enns, Eva A.
作者单位：University of Texas System; University of Texas Austin; Western University (University of Western Ontario); University of Minnesota System; University of Minnesota Twin Cities
摘要：Antimicrobial resistance is a significant public health threat. In the United States alone, two million people are infected, and 23,000 die each year from antibiotic-resistant bacterial infections. In many cases, infections are resistant to all but a few remaining drugs. We examine the case in which a single drug remains and solve for the optimal treatment policy for a susceptible-infected-susceptible infectious disease model, incorporating the effects of drug resistance. The problem is formul...
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作者：Bolandnazar, Mohammadreza; Huh, Woonghee Tim; McCormick, S. Thomas; Murota, Kazuo
作者单位：Columbia University; University of British Columbia; Tokyo Metropolitan University
摘要：One of the main results of Order-Based Cost Optimization in Assemble-toOrder Systems [Lu Y, Song J-S (2005) Order-based cost optimization in assemble-to-order systems. Oper. Res. 53(1):151-169] is proposition 1(c), which states that the cost function of an assemble-to-order inventory system satisfies a discrete convexity property called L-(sic)-convexity. We construct a counterexample showing that this result is incorrect, and hence their proposed steepest decent algorithm may not work.
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作者：Li, Chung-Lun; Hall, Nicholas G.
作者单位：Hong Kong Polytechnic University; University System of Ohio; Ohio State University
摘要：We study how design decisions in project planning affect the cost of execution. In organizing a project's tasks into work packages, trade-offs arise. Defining small work packages increases project complexity and workload, and reduces economies of scale, whereas defining large work packages reduces concurrent processing and adversely affects cash flow. Our work is apparently the first to study this trade-off. We consider the objective of minimizing total project cost, subject to a deadline on p...
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作者：Ning, Jie; Sobel, Matthew J.
作者单位：University System of Ohio; Case Western Reserve University
摘要：This paper characterizes the class of decomposable affine Markov decision processes (MDPs), which have continuous multidimensional endogenous states and actions, and Markov-modulated exogenous states. This class of MDPs has affine dynamics and single-period rewards, sets of feasible actions that decompose into bounded polytopes, and endogenous state variables that are nonnegative or nonpositive. It is shown that decomposable affine MDPs with discounted criteria have an affine value function an...
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作者：Bimpikis, Kostas; Ehsani, Shayan; Mostagir, Mohamed
作者单位：Stanford University; Stanford University; University of Michigan System; University of Michigan
摘要：Participants race toward completing an innovation project and learn about its feasibility from their own efforts and their competitors' gradual progress. Information about the status of competition can alleviate some of the uncertainty inherent in the contest, but it can also adversely affect effort provision from the laggards. This paper explores the problem of designing the award structure of a contest and its information disclosure policy in a dynamic framework and provides a number of guid...
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作者：Whitt, Ward; You, Wei
作者单位：Columbia University
摘要：We develop a time-varying robust-queueing (TVRQ) algorithm for the continuous-time workload in a single-server queue with a time-varying arrival-rate function. We apply this TVRQ to develop approximations for the periodic steady-state expected workload in models with a periodic arrival-rate function. We apply simulation and asymptotic methods to examine the performance of periodic TVRQ (PRQ). We find that PRQ predicts the mean of the periodic distribution and even the full distribution (specif...
