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基于边权的最小权重3路顶点覆盖算法
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作者 范鼎 刘春颜 +1 位作者 李洋 赵蕴龙 《应用科技》 CAS 2024年第4期69-74,共6页
城际仓储选址通常可以转化为顶点覆盖问题,顶点覆盖问题是一种经典的NP难问题。针对最小权重3路顶点覆盖问题,设计了基于边权和顶点度的贪心策略,构建了1个两阶段的最小权重3路顶点覆盖算法。通过与2种较优的最小权重3路顶点覆盖算法进... 城际仓储选址通常可以转化为顶点覆盖问题,顶点覆盖问题是一种经典的NP难问题。针对最小权重3路顶点覆盖问题,设计了基于边权和顶点度的贪心策略,构建了1个两阶段的最小权重3路顶点覆盖算法。通过与2种较优的最小权重3路顶点覆盖算法进行对比实验分析可知,本文提出的算法在城际物流仓储选址问题中具有较好的效果,最小权重和分别减少了3.34和1.13个百分点。 展开更多
关键词 顶点覆盖 3路顶点覆盖 最小权重3路顶点覆盖 组合优化 图论 边权策略 物流建仓 贪心策略
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DYNAMIC VALUATION OF OPTIONS ON NON-TRADED ASSETS AND TRADING STRATEGIES 被引量:1
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作者 MI Hui ZHANG Shuguang 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2013年第6期991-1001,共11页
This paper investigates the pricing of options written on non-traded assets and trading strategies for the stock and option in an exponential utility maximization framework.Under the assumption that the option can be ... This paper investigates the pricing of options written on non-traded assets and trading strategies for the stock and option in an exponential utility maximization framework.Under the assumption that the option can be continuously traded without friction just as the stock,a dynamic relationship between their optimal positions is derived by using the stochastic dynamic programming techniques.The dynamic option pricing equations are also established.In particular,the properties of the associated solutions are discussed and their explicit representations are demonstrated via the Feynman-Kac formula.This paper further compares the dynamic option price to the existing price notions,such as the marginal price and indifference price. 展开更多
关键词 Non-traded asset option pricing portfolio selection stochastic control.
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