2期

最新文章

• Investment Timing with Incomplete Information and Multiple Means of Learning AI翻译
  作者：Harrison, J. Michael; Sunar, Nur
  作者单位：Stanford University; University of North Carolina; University of North Carolina Chapel Hill
  摘要：We consider a firm that can use one of several costly learning modes to dynamically reduce uncertainty about the unknown value of a project. Each learning mode incurs cost at a particular rate and provides information of a particular quality. In addition to dynamic decisions about its learning mode, the firm must decide when to stop learning and either invest or abandon the project. Using a continuous-time Bayesian framework, and assuming a binary prior distribution for the project's unknown v...
• Multiattribute Utility Functions Satisfying Mutual Preferential Independence AI翻译
  作者：Abbas, Ali E.; Sun, Zhengwei
  作者单位：University of Southern California; University of Southern California; University of Southern California; East China University of Science & Technology
  摘要：The construction of a multiattribute utility function is an important step in decision analysis. One of the most widely used conditions for constructing the utility function is the assumption of mutual preferential independence where trade-offs among any subset of the attributes do not depend on the instantiations of the remaining attributes. Mutual preferential independence asserts that ordinal preferences can be represented by an additive function of the attributes. This paper derives the mo...
• Service Systems with Slowdowns: Potential Failures and Proposed Solutions AI翻译
  作者：Dong, Jing; Feldman, Pnina; Yom-Tov, Galit B.
  作者单位：Northwestern University; University of California System; University of California Berkeley; Technion Israel Institute of Technology
  摘要：Many service systems exhibit service slowdowns when the system is congested. Our goal in this paper is to investigate this phenomenon and its effect on system performance. We modify the Erlang-A model to account for service slowdowns and carry out the performance analysis in the quality-and efficiencydriven (QED) regime. We find that when the load sensitivity is low, the system can achieve QED performance, but the square-root staffing parameter requires an adjustment to achieve the same perfor...
• Introduction to the OR Forum Article: A Glimpse at an Operation Analyst's World War II: 'Report on the Combat Performance of the Remote Control Turrets of B-29 Aircraft' AI翻译
  作者：Pinker, Edieal J.
  作者单位：Yale University
• Optimizing Reorder Intervals for Two-Echelon Distribution Systems with Stochastic Demand AI翻译
  作者：Shang, Kevin H.; Tao, Zhijie; Zhou, Sean X.
  作者单位：Duke University; Shanghai University of Finance & Economics; Chinese University of Hong Kong
  摘要：We consider a periodic-review inventory system in which N non-identical retailers replenish from a warehouse, which further replenishes from an outside vendor with ample supply. Each facility faces Poisson demand and replenishes according to a base-stock policy in a fixed time interval. Fixed costs are incurred for placing an order. The warehouse fills the retailers' orders in the same sequence as the occurrence of the demand at the retailers. The objective is to minimize the average system co...
• Generalized Almost Stochastic Dominance AI翻译
  作者：Tsetlin, Ilia; Winkler, Robert L.; Huang, Rachel J.; Tzeng, Larry Y.
  作者单位：INSEAD Business School; Duke University; National Central University; National Taiwan University
  摘要：Almost stochastic dominance allows small violations of stochastic dominance rules to avoid situations where most decision makers prefer one alternative to another but stochastic dominance cannot rank them. While the idea behind almost stochastic dominance is quite promising, it has not caught on in practice. Implementation issues and inconsistencies between integral conditions and their associated utility classes contribute to this situation. We develop generalized almost second-degree stochas...
• Planning for HIV Screening, Testing, and Care at the Veterans Health Administration AI翻译
  作者：Deo, Sarang; Rajaram, Kumar; Rath, Sandeep; Karmarkar, Uday S.; Goetz, Matthew B.
  作者单位：Indian School of Business (ISB); University of California System; University of California Los Angeles; US Department of Veterans Affairs; Veterans Health Administration (VHA)
  摘要：We analyzed the planning problem for HIV screening, testing, and care. This problem consists of determining the optimal fraction of patients to be screened in every period as well as the optimum staffing level at each part of the healthcare system to maximize the total health benefits to the patients measured by quality-adjusted life-years (QALYs) gained. We modeled this problem as a nonlinear mixed integer programming program comprising disease progression (the transition of the patients acro...
• The d-Level Nested Logit Model: Assortment and Price Optimization Problems AI翻译
  作者：Li, Guang; Rusmevichientong, Paat; Topaloglu, Huseyin
  作者单位：University of Southern California; Cornell University
  摘要：We consider assortment and price optimization problems under the d-level nested logit model. In the assortment optimization problem, the goal is to find the revenue-maximizing assortment of products to offer, when the prices of the products are fixed. Using a novel formulation of the d-level nested logit model as a tree of depth d, we provide an efficient algorithm to find the optimal assortment. For a d-level nested logit model with n products, the algorithm runs in O(dn log n) time. In the p...