2期

最新文章

• The US Army National Guard's mobile training simulators location and routing problem AI翻译
  作者：Murty, KG; Djang, PA
  作者单位：University of Michigan System; University of Michigan
  摘要：For training National Guard units, the U.S. Army National Guard will field 21 combat vehicle training simulators called mobile trainers. Each National Guard unit must train at a station that is not farther than a specified maximum travel distance from its armory. We address the problem of finding: the optimum locations for the home bases for the mobile trainers, the locations of secondary training sites to which the mobile trainers will travel to provide training, and the actual routes that th...
• Pricing and the newsvendor problem: A review with extensions AI翻译
  作者：Petruzzi, NC; Dada, M
  作者单位：University of Illinois System; University of Illinois Urbana-Champaign; Purdue University System; Purdue University
  摘要：In the newsvendor problem, a decision maker facing random demand for a perishable product decides how much of it to stock for a single selling period. This simple problem with its intuitively appealing solution is a crucial building block of stochastic inventory theory, which comprises a vast literature focusing on operational efficiency. Typically in this literature, market parameters such as demand and selling price are exogenous. However, incorporating these factors into the model can provi...
• Designing portfolios of financial products via integrated simulation and optimization models AI翻译
  作者：Consiglio, A; Zenios, SA
  作者单位：University of Calabria; University of Cyprus
  摘要：We analyze the problem of debt issuance through the sale of innovative financial products. The problem is broken down to questions of designing the financial products, specifying the debt structure with the amount issued in each product, and determining an optimal level of financial leverage. We formulate a hierarchical optimization model to integrate these three issues and provide constructive answers. Input data for the models are obtained from Monte Carlo simulation procedures that generate...
• Incorporating competence sets of decision makers by deduction graphs AI翻译
  作者：Li, HL
  作者单位：National Yang Ming Chiao Tung University
  摘要：This paper proposes an optimization model of incorporating competence sets of group decision makers to maximize the total benefit of the whole group. Such an incorporation model is formulated as finding a deduction graph linked from the nodes of existing competencies to the nodes of desired competencies. Compared with other methods treating competence set problems (Yu and Zhang 1991, Li and Yu 1994, and Shi and Yu 1996), the proposed model can solve problems involving multiple decision makers;...
• A product and process selection model with multidisciplinary environmental considerations AI翻译
  作者：Stuart, JA; Ammons, JC; Turbini, LJ
  作者单位：University System of Ohio; Ohio State University; University System of Georgia; Georgia Institute of Technology
  摘要：Introduction of product designs and process innovation requires a company to evaluate complex cost and environmental tradeoffs. In the past, these have not included environmental costs. This paper describes the first known analytical approach to capture comprehensively measurable corporate environmental impact considerations for the product life cycle. A mixed integer programming model is developed to select product and process alternatives while considering tradeoffs of yield, reliability, an...
• Managing development risk in product design processes AI翻译
  作者：Ahmadi, R; Wang, RH
  作者单位：University of California System; University of California Los Angeles
  摘要：Product development has become the focal point of industrial competition and is the cornerstone of long-term survival for most firms. One of the major management challenges in product development is to deal with development risk in the design process. In this paper we provide a strategic guideline as to how the design process should be managed and controlled. We describe how design reviews and engineering resources can be scheduled as the control mechanisms to operationally manage development ...
• A column generation approach for large-scale aircrew rostering problems AI翻译
  作者：Gamache, M; Soumis, F; Marquis, G; Desrosiers, J
  作者单位：Universite de Montreal; Universite de Montreal; Polytechnique Montreal; Universite de Montreal; HEC Montreal
  摘要：This article describes a method for solving the crew rostering problem in air transportation. This problem consists of constructing personalized schedules that assign pairings, days off, and other activities to airline crew members. A generalized set partitioning model and a method using column generation have been used. This method has been adapted in a number of ways to take advantage of the nature of the problem and to accelerate solution. Numerical tests on problems from Air France have de...
• Structural analysis of a queueing system with multiclasses of correlated arrivals and blocking AI翻译
  作者：Xu, SH
  作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
  摘要：In assemble-to-order production systems, and others of a similar flavor, it is often the case that orders for components of various types are placed simultaneously, but that these components are manufactured or assembled at separate facilities. The order process introduces correlation among the jobs at separate facilities. The purpose of this paper is to study the effect of this correlation on a variety of system performance measures. Consider a system that consists of s parallel servers, wher...
• Random yield and random demand in a production system with downward substitution AI翻译
  作者：Hsu, A; Bassok, Y
  作者单位：Carnegie Mellon University; University of Washington; University of Washington Seattle
  摘要：In this paper, we present and solve a single-period, multiproduct, downward substitution model. Our model has one raw material as the production input and produces N different products as outputs. The demands and yields for the products are random. We determine the optimal production input and allocation of the N products to satisfy demands. The problem is modeled as a two-stage stochastic program, which we show can be decomposed into a parameterized network flow problem. We present and compar...
• Solving inverse spanning tree problems through network flow techniques AI翻译
  作者：Sokkalingam, PT; Ahuja, RK; Orlin, JB
  作者单位：Cisco Systems Inc; Cisco India; State University System of Florida; University of Florida; Massachusetts Institute of Technology (MIT)
  摘要：Given a solution x* and an a priori estimated cost vector c, the inverse optimization problem is to identify another cost vector d so that x* is optimal with respect to the cost vector d and its deviation from c is minimum. In this paper, we consider the inverse spanning tree problem on an undirected graph G = (N, A) with n nodes and m arcs, and where the deviation between c and d is defined by the rectilinear distance between the two vectors, that is, L-1 norm. We show that the inverse spanni...