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L. Jeff Hong 《海军后勤学研究》2006,53(5):464-476
Fully sequential indifference‐zone selection procedures have been proposed in the simulation literature to select the system with the best mean performance from a group of simulated systems. However, the existing sequential indifference‐zone procedures allocate an equal number of samples to the two systems in comparison even if their variances are drastically different. In this paper we propose new fully sequential indifference‐zone procedures that allocate samples according to the variances. We show that the procedures work better than several existing sequential indifference‐zone procedures when variances of the systems are different. © 2006 Wiley Periodicals, Inc. Naval Research Logistics, 2006 相似文献
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在处理非线性滤波问题时,常用的几种通过模型近似或计算近似的滤波方法均在某种特定的情况下具有适用性.近年来随着计算机处理能力的快速发展,提出了序列蒙特卡罗滤波方法,因其在处理复杂的非线性和非高斯问题时表现出强大的潜力而引起广泛关注.详述了序列蒙特卡罗滤波算法的基本思想和原理,对其关键技术进行了归纳分析,并指出了该方法亟待解决的一些难点问题. 相似文献
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基于临近空间防空导弹,在拦截高空高速大机动目标的条件下,对导弹的制导律进行了研究。给出了微分对策制导律的理论知识及其具体算法,通过Simulink工具进行模块化建模,并将制导律模型引入导弹六自由度模型中进行仿真,对比分析导弹飞行轨迹和需用过载,表明微分对策制导律要比常用的比例导引制导律更优。 相似文献
176.
Xiang Fang 《海军后勤学研究》2012,59(2):146-159
In this study, we consider n firms, each of which produces and sells a different product. The n firms face a common demand stream which requests all their products as a complete set. In addition to the common demand stream, each firm also faces a dedicated demand stream which requires only its own product. The common and dedicated demands are uncertain and follow a general, joint, continuous distribution. Before the demands are realized, each firm needs to determine its capacity or production quantity to maximize its own expected profit. We formulate the problem as a noncooperative game. The sales price per unit for the common demand could be higher or lower than the unit price for the dedicated demand, which affects the firm's inventory rationing policy. Hence, the outcome of the game varies. All of the prices are first assumed to be exogenous. We characterize Nash equilibrium(s) of the game. At the end of the article, we also provide some results for the endogenous pricing. © 2012 Wiley Periodicals, Inc. Naval Research Logistics, 59: 146–159, 2012 相似文献
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利用演化博弈理论,探讨了联合作战中担负相同作战任务的作战单元间其策略选择根据利益变化的演化过程,建立了复制动态方程并求得平衡点解,通过复制动态的相位图直观反映了博弈的演化稳定策略,并通过Malab软件对作战单元策略选择与收益关系进行了仿真,其行为选择的演化结果与相位图展示具有一致性。研究结论表明,收益大小及变化是作战单元策略改变的重要依据,最后针对提高作战单元间的策略稳定性提出对策建议. 相似文献
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Kjetil Enstad 《Journal of Military Ethics》2017,16(3-4):191-204
This article investigates the communication of professional ethos, the ethical standards of a profession in training, from passing on ideas of patients’ welfare in medical schools to communicating values in military academies. The article examines this through a consideration of the consequences of Wittgenstein’s discussions on the nature of language: how words and sentences acquire meaning. Wittgenstein’s rule-following paradox, the paradox that any act can be brought into correspondence with a rule and thereby that any “meaning” might be applicable to what is being taught, must make us re-evaluate assumptions about a professional ethos as a guide for professionals in their future practice. If, as Wittgenstein asserts, the meaning of a word is its use, we must abandon ideas of an essence of professional ethos encapsulated in words. Ethical standards of the professions are not reducible to a set of rules. Instead teachers must seek to expand the learner’s repertoire of responses and invite different answers rather than a pre-established correct answer. 相似文献
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We analyze an interdiction scenario where an interceptor attempts to catch an intruder as the intruder moves through the area of interest. A motivating example is the detection and interdiction of drug smuggling vessels in the Eastern Pacific and Caribbean. We study two models in this article. The first considers a nonstrategic target that moves through the area without taking evasive action to avoid the interdictor. We determine the optimal location the interceptor should position itself to best respond when a target arrives. The second model analyzes the strategic interaction between the interceptor and intruder using a Blotto approach. The intruder chooses a route to travel on and the interceptor chooses a route to patrol. We model the interaction as a two‐player game with a bilinear payoff function. We compute the optimal strategy for both players and examine several extensions. © 2017 Wiley Periodicals, Inc. Naval Research Logistics, 64: 29–40, 2017 相似文献