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V2V环境下具有组策略防护特性的虚拟交通灯
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作者 宋玮 赵会奋 +1 位作者 蔡文钦 周万强 《计算机工程》 CAS CSCD 北大核心 2022年第4期299-306,共8页
在V2V环境下的虚拟交通灯可以通过车辆间直接交换的信息协商路权分配,且在设备获取相关信息时,车辆能够有策略地提供信息以获得优先路权。为适用于非可测量因素影响路权的场景,提出一种具有组策略防护特性的虚拟交通灯。通过将车辆提供... 在V2V环境下的虚拟交通灯可以通过车辆间直接交换的信息协商路权分配,且在设备获取相关信息时,车辆能够有策略地提供信息以获得优先路权。为适用于非可测量因素影响路权的场景,提出一种具有组策略防护特性的虚拟交通灯。通过将车辆提供的真实信息抽象为成本分摊与合作博弈,并设计组策略防护拍卖机制,利用Shapley值计算出每辆车的成本分摊作为车辆的支付。在此基础上,根据拍卖结果中真实的评价值建立绿灯信号,通过信号合并算法整合多次拍卖产生的绿灯信号,由此产生合理的路权分配。实验结果表明,该虚拟交通灯具有组策略防护特性,能够避免车辆形成虚报信息的联盟来获取利益,也能避免车辆通过虚报私有信息来获得路权优先权,与具有固定绿灯通行数量阈值的虚拟交通灯相比,组策略防护的虚拟交通灯在整体平均行驶时间以及高评价值车辆的平均行驶时间上均有一定改善。 展开更多
关键词 V2V环境 虚拟交通灯 成本分摊合作博弈 组策略防护拍卖机制 SHAPLEY值 平均行驶时间
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Design of cost allocation rule for joint replenishment with controllable lead time
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作者 Shi Xuefei Wang Haiyan 《Journal of Southeast University(English Edition)》 EI CAS 2020年第4期453-464,共12页
To encourage retailers to form cooperative alliances to jointly replenish inventory,considering that the supplier provides a flexible lead time and quantity discount to retailers,a model of average total cost per unit... To encourage retailers to form cooperative alliances to jointly replenish inventory,considering that the supplier provides a flexible lead time and quantity discount to retailers,a model of average total cost per unit time of periodic joint replenishment is constructed,and an approximate algorithm,which can satisfy the requirement of any given precision,is given.The cost allocation rule in the core of the joint replenishment game is designed based on the cooperative game theory.The numerical experiment results show that the proposed algorithm can quickly solve the joint replenishment problem when the item number is not greater than 640.The retailer's cost saving rate is always greater than 0,and it increases with the increase in quantity discount and fixed cost after adopting the given cost allocation rule.With the increase in the safety stock level,the retailer's cost saving rate increases first and then decreases;and the retailer's cost saving rate increases with the increase in the size of the alliance,but it decreases as the number of product category increases.The proposed cost allocation rule can reduce the retailer's cost up to 20%,which is conducive to forming a cooperative coalition. 展开更多
关键词 joint replenishment controllable lead time cost allocation cooperative game
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