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51.
三方非对称进化博弈行为分析 总被引:2,自引:0,他引:2
随着政府涉入领域以及社会合作谈判领域的增多,三方非对称进化博弈越来越多地出现在现实生活中.但目前国内外对该类型的进化博弈研究甚少,这显然不利于正确地解释和预测该类型的博弈行为.基于此,运用进化博弈论中的“复制动态”思想,对三方非对称的2×2×2进化博弈进行了渐进稳定性分析,完整地给出了其定性行为的等价定量分类和各参与主体不同情况下的稳定性策略,并且用三维立体图演示了不同策略组合的渐进趋势,从而为研究现实生活中该类型的博弈行为提供了一种理论依据. 相似文献
52.
提出了一种新的遗传算法最优保存策略,该策略在最优个体保留的基础上,添加一个与最优个体相异因子较大,而适应值不过小的个体.这样做既利用了最优保存策略的全局收敛性,又通过新添加的个体来保持种群的多样性,以防止早熟现象的出现.对典型优化函数进行了测试,结果表明基于新的最优保存策略的遗传算法(DESGA)收敛性能显著好于一般简单遗传算法(SGA)和最优保存简单遗传算法(ESGA).该策略与最优保存策略一样具有一般通用性. 相似文献
53.
王昌福 《浙江大学学报(理学版)》1998,25(3):98-104
本文讨论了原料为易腐的生产贮存控制中的需求为随机变量的问题, 给出了最优的生产点、批量生 产时间、( S , s)策略中最优的 S 和s 所应该满足的条件. 相似文献
54.
The dividends-penalty identity is a relation between three functions: the discounted penalty function without dividends, the discounted penalty function if a barrier dividend strategy is applied, and the expected discounted dividends until ruin. The classical model of risk theory is modified in that the deterministic premiums are replaced by a compound Poisson process with exponential jumps. In this model, the dividends-penalty identity is new and can be derived by interpretation. Then the dividends-penalty identity in the classical model is obtained as a limit. 相似文献
55.
Costas Courcoubetis Panagiotis Konstantopoulos Jean Walrand Richard R. Weber 《Queueing Systems》1989,5(1-3):37-54
Consider a production system that consists ofm machines each of which can produce parts ofn types. When machinek is used, it produces a part of typei with probabilityp
ki
. Requests arrive for parts, one at a time. With probability
i
an arriving request is for a part of typei. The requests must be served without waiting. Thus, if a requested part is not available, it must be produced. We find necessary and sufficient conditions for the existence of a strategy (a choice of the machines to be used) which makes the inventory of parts stable and we provide such a strategy.Two variations of this model are also considered: the case of batch arrivals of requests, and that of a system where the requests can be queued. 相似文献
56.
57.
Many real life problems can be stated as a minimax optimization problem, such as the problems in economics, finance, management, engineering and other fields. In this paper, we present an algorithm with nonmonotone strategy and second-order correction technique for minimax optimization problems. Using this scheme, the new algorithm can overcome the difficulties of the Maratos effect occurred in the nonsmooth optimization, and the global and superlinear convergence of the algorithm can be achieved accordingly. Numerical experiments indicate some advantages of this scheme. 相似文献
58.
Yichun Chi 《Insurance: Mathematics and Economics》2011,48(3):326-337
In this paper, we generalize the Cramér-Lundberg risk model perturbed by diffusion to incorporate jumps due to surplus fluctuation and to relax the positive loading condition. Assuming that the surplus process has exponential upward and arbitrary downward jumps, we analyze the expected discounted penalty (EDP) function of Gerber and Shiu (1998) under the threshold dividend strategy. An integral equation for the EDP function is derived using the Wiener-Hopf factorization. As a result, an explicit analytical expression is obtained for the EDP function by solving the integral equation. Finally, phase-type downward jumps are considered and a matrix representation of the EDP function is presented. 相似文献
59.
Eric C.K. Cheung 《Insurance: Mathematics and Economics》2011,48(3):384-397
In a general Sparre Andersen risk model with surplus-dependent premium income, the generalization of Gerber-Shiu function proposed by Cheung et al. (2010a) is studied. A general expression for such Gerber-Shiu function is derived, and it is shown that its determination reduces to the evaluation of a transition function which is independent of the penalty function. Properties of and explicit expressions for such a transition function are derived when the surplus process is subject to (i) constant premium; (ii) a threshold dividend strategy; or (iii) credit interest. Extension of the approach is discussed for an absolute ruin model with debit interest. 相似文献
60.
Lot‐sizing policies for deterioration items under two‐level trade credit with partial trade credit to credit‐risk retailer and limited storage capacity 下载免费PDF全文
Jui‐Jung Liao Kuo‐Nan Huang Kun‐Jen Chung Pin‐Shou Ting Shy‐Der Lin H. M. Srivastava 《Mathematical Methods in the Applied Sciences》2017,40(6):2122-2139
The main purpose of this article is to investigate the optimal wholesaler's replenishment decisions for deterioration items under two levels of the trade credit policy and two storage facilities in order to reflect the supply chain management situation within the economic order quantity framework. In this study, each of the following assumptions have been made: (1) The own warehouse with limited capacity always is not sufficient to store the order quantity, so that a rented warehouse is needed to store the excess units over the capacity of the own warehouse; (2) The wholesaler always obtains the partial trade credit, which is independent of the order quantity offered by the supplier, but the wholesaler offers the full trade credit to the retailer; (3) The wholesaler must take a loan to pay his or her supplier the partial payment immediately when the order is received and then pay off the loan with the entire revenue. Under these three conditions, the wholesaler can obtain the least costs. Furthermore, this study models the wholesaler's optimal replenishment decisions under the aforementioned conditions in the supply chain management. Two theorems are developed to efficiently determine the optimal replenishment decisions for the wholesaler. Finally, numerical examples are given to illustrate the theorems that are proven in this study, and the sensitivity analysis with respect to the major parameters in this study is performed. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献