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31.
In this article, we develop an interactive algorithm to place alternatives in ordered preference classes for a decision maker (DM) with an increasing quasiconcave value function. Such value functions are quite general in that they include linear and concave value functions. Our aim is to elicit sorting information from the DM as few times as possible; our algorithm places other alternatives using previous responses from the DM utilizing properties of quasiconcave value functions. As an application, we sort 81 global MBA programs into preference classes using criteria such as alumni career progress, idea generation, and diversity. We study the performance of our proposed algorithm, when we change the number of criteria, number of alternatives, and introduce response errors. © 2014 Wiley Periodicals, Inc. Naval Research Logistics 61: 447–457, 2014 相似文献
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Björn Hagelin 《Defense & Security Analysis》2012,28(2):163-175
From the recipients’ perspective, arms transfers have, through the use of offsets, technology transfers, and industrial participation, become an opportunity to receive not only advanced weapons, but also technologies not otherwise available. How important are friendly relations for securing a military export order? To what extent do buyers demand advanced military or commercial technology and how are these demands accepted by the supplier? How does this influence smaller producers in relation to major producers? These questions are addressed by studying (a) the Joint Strike Fighter/F-35 by Lockheed Martin, USA, and the JAS-39 Gripen aircraft by Saab, Sweden, (b) the Medium Multi-Role Combat Aircraft competition in India for 126 combat aircraft, and (c) the Indian offset policy. In the final section, some long-term consequences are discussed. 相似文献
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计算了一类二次Hamilton微分系统的一阶Mel’nikov函数,通过此方法对该系统在三次多项式扰动下分岔的极限环个数进行了估计。 相似文献
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介绍了可以用扩展可靠性框图表示的系统的可靠性参数的仿真算法。首先,对扩展可靠性框图进行了介绍,提出了利用树状结构来描述扩展可靠性框图的结构。其次,对基于扩展可靠性框图的系统行为进行了分析。然后,依据离散事件系统仿真思想,分别给出了计算可修系统可靠性参数的仿真算法与不可修系统可靠性参数的仿真算法。最后,给出了计算实例。该仿真算法不仅可以对状态独立系统进行可靠性参数计算,而且可以对具有冷储备关系以及冷储备嵌套关系的状态相关系统进行可靠性参数计算,具有很强的通用性与实用性。 相似文献
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We consider the problem of nonparametric multi-product dynamic pricing with unknown demand and show that the problem may be formulated as an online model-free stochastic program, which can be solved by the classical Kiefer-Wolfowitz stochastic approximation (KWSA) algorithm. We prove that the expected cumulative regret of the KWSA algorithm is bounded above by where κ1, κ2 are positive constants and T is the number of periods for any T = 1, 2, … . Therefore, the regret of the KWSA algorithm grows in the order of , which achieves the lower bounds known for parametric dynamic pricing problems and shows that the nonparametric problems are not necessarily more difficult to solve than the parametric ones. Numerical experiments further demonstrate the effectiveness and efficiency of our proposed KW pricing policy by comparing with some pricing policies in the literature. 相似文献
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D J L Moore 《Whitehall Papers》2013,80(1):13-22
Abstract David Moore analyses the role of the Treasury in detemining and controlling defence policy and expenditure, and the place of the MoD within this function. 相似文献