2006

最新文章

• A combinatorial heuristic approach for solving real-size machinery location and road design problems in forestry planning AI翻译
  作者：Epstein, Rafael; Weintraub, Andres; Sapunar, Pedro; Nieto, Enrique; Sessions, Julian B.; Sessions, John; Bustamante, Fernando; Musante, Hugo
  作者单位：Universidad de Chile; Tektronix, Inc.; Oregon State University
  摘要：The location and operation of harvest machinery, along with the design and construction of access roads, are important problems faced by forestry planners, making up about 55% of total production costs. One of the main challenges consists of finding a design that will minimize the cost of installation and operation of harvest machinery, road construction, and timber transport, while complying with the technical restrictions that apply to the operation of harvesting equipment and road construct...
• Efficient supply chain management at the US Coast Guard using part-age dependent supply replenishment policies AI翻译
  作者：Deshpande, Vinayak; Iyer, Ananth V.; Cho, Richard
  作者单位：Purdue University System; Purdue University; University of New Brunswick
  摘要：The United States Coast Guard (USCG), now part of the Department of Homeland Security, has the mission to secure the U.S. coastline using a combination of air and sea capabilities. This paper focuses on an application of operations research techniques at the USCG to improve the performance of its aircraft service parts supply chain. We focused on evaluating the supply chain benefits from linking the aircraft maintenance database with the aircraft parts inventory database. This required us to (...
• Online low-price guarantees - A real options analysis AI翻译
  作者：Marcus, Benjamin; Anderson, Chris K.
  作者单位：Suffolk University; Cornell University
  摘要：A common practice among large retailers is the low-price guarantee, rebating consumers if they find an identical product cheaper elsewhere. This provides consumers with some level of comfort in their purchase decision. A similar low-price guarantee is provided by numerous service industries that allow reservation of capacity, yet do not penalize the consumer for failure to keep that reservation-examples include hotels and car rental. Given that a consumer is not required to keep the reservatio...
• Robust one-period option hedging AI翻译
  作者：Lutgens, Frank; Sturm, Jos; Kolen, Antoon
  作者单位：Maastricht University; Tilburg University; Maastricht University
  摘要：We consider robust optimization to cope with uncertainty about the stock return process in one-period option hedging problems. The robust approach relates portfolio choice to uncertainty, making more cautious hedges when uncertainty is high. We represent uncertainty by a set of plausible expected returns of the underlying stocks and show that for this set the robust problem is a second-order cone program that can be solved efficiently. We apply the approach to find an optimal portfolio to hedg...
• On the effects of dimension reduction techniques on some high-dimensional problems in finance AI翻译
  作者：Wang, Xiaoqun
  作者单位：Tsinghua University; University of New South Wales Sydney
  摘要：Many problems in finance can be formulated as high-dimensional integrals, which are often attacked by quasi-Monte Carlo (QMC) algorithms. To enhance QMC algorithms, dimension reduction techniques, such as the Brownian bridge (BB) and principal component analysis (PCA), are used to reduce the effective dimension. This paper explores in depth the effects of these techniques on the dimension structure of some typical high-dimensional problems from finance: the pricing of path-dependent options an...
• Inventory planning with forecast updates: Approximate solutions and cost error bounds AI翻译
  作者：Lu, Xiangwen; Song, Jing-Sheng; Regan, Amelia
  作者单位：Cisco Systems Inc; Cisco USA; Duke University; University of California System; University of California Irvine
  摘要：We consider a finite-horizon, periodic-review inventory model with demand forecasting updates following the martingale model of forecast evolution (MMFE). The optimal policy is a state-dependent base-stock policy, which, however, is computationally intractable to obtain. We develop tractable bounds on the optimal base-stock levels and use them to devise a,general class of heuristic solutions. Through this analysis, we identify a necessary and sufficient condition for the myopic policy to be op...
• A monopolistic and oligopolistic stochastic flow revenue management model AI翻译
  作者：Xu, Xiaowei; Hopp, Wallace J.
  作者单位：Rutgers University System; Rutgers University Newark; Rutgers University New Brunswick; Northwestern University
  摘要：This paper studies a one-shot inventory replenishment problem with dynamic pricing. The customer arrival rate is assumed to follow a geometric Brownian motion. Homogeneous customers have an isoelastic demand function and do not behave strategically. We find a closed-form optimal pricing policy, which utilizes current demand information. Under this pricing policy the inventory trajectory is deterministic, and a retailer sells all inventory. We show that dynamic pricing coordinated with the inve...
• Joint pricing-production decisions in supply chains of complementary products with uncertain demand AI翻译
  作者：Wang, Yunzeng
  作者单位：University of Texas System; University of Texas Dallas
  摘要：Consider n manufacturers, each producing a different product and selling it to a market, either directly or through a common retailer. The n products are perfectly complementary in the sense that they are always sold and consumed jointly or in sets of one unit of each. Demand for the products during a selling season is both price sensitive and uncertain. Each of the n manufacturers faces the problem of choosing a production quantity and a selling price for his product. Two settings are conside...
• Expected value of distribution information for the newsvendor problem AI翻译
  作者：Yue, Jinfeng; Chen, Bintong; Wang, Min-Chiang
  作者单位：Middle Tennessee State University; Washington State University
  摘要：This paper extends previous work on the distribution-free newsvendor problem, where only partial information about the demand distribution is available. More specifically, the analysis assumes that the demand distribution f belongs to a class of probability distribution functions (pdf) F with mean mu and standard deviation sigma. While previous work has examined the expected value of distribution information (EVDI) for a particular order quantity and a particular pdf f, this paper aims at comp...
• Inventory and production decisions for an assemble-to-order system with uncertain demand and limited assembly capacity AI翻译
  作者：Fu, Ke; Hsu, Vernon Ning; Lee, Chung-Yee
  作者单位：Sun Yat Sen University; George Mason University; Hong Kong University of Science & Technology
  摘要：This paper considers an inventory and production-planning problem for a contract manufacturer who anticipates an order of a single product, but with uncertain quantity. To meet the challenges of long component procurement lead times and limited assembly capacity, which may render production time insufficient to assemble total order quantity, the manufacturer may need to procure components or even assemble some quantities of the final product before receiving the confirmation of the actual orde...