期刊文献+
共找到5篇文章
< 1 >
每页显示 20 50 100
嵌入式通信系统中基于动态多因素的马尔可夫决策路由
1
作者 刘甜甜 贾智平 Edwin H.-M.Sha 《上海交通大学学报》 EI CAS CSCD 北大核心 2007年第11期1816-1819,共4页
为了适应嵌入式通信系统的资源匮乏性、多因素、异构性和对等性等特点,提出了动态多因素马尔可夫决策路由(DMMDR)算法,分析了算法的时间和空间复杂度,并设计了路由的建立过程和链路状态的更新策略.研究结果表明,该算法能综合考虑各种因... 为了适应嵌入式通信系统的资源匮乏性、多因素、异构性和对等性等特点,提出了动态多因素马尔可夫决策路由(DMMDR)算法,分析了算法的时间和空间复杂度,并设计了路由的建立过程和链路状态的更新策略.研究结果表明,该算法能综合考虑各种因素,均衡和减少计算量和存储需求,并避免环路的产生. 展开更多
关键词 嵌入式 马尔可夫决策过程 动态多因素马尔可夫决策路由算法 链路状态更新
下载PDF
基于航空公司损失的不正常航班恢复研究 被引量:2
2
作者 戴福青 张舜尧 《中国民航大学学报》 CAS 2021年第2期26-30,共5页
为解决由天气、流量控制、机务维修和旅客等因素导致的航班不正常问题,构建了以航空公司直接损失和间接损失之和最小为目标函数的航班恢复模型;细分了不同舱位的旅客由于航班延误产生的失望情绪对航空公司的未来客票销售产生的影响;将... 为解决由天气、流量控制、机务维修和旅客等因素导致的航班不正常问题,构建了以航空公司直接损失和间接损失之和最小为目标函数的航班恢复模型;细分了不同舱位的旅客由于航班延误产生的失望情绪对航空公司的未来客票销售产生的影响;将经济学中机会成本的概念应用于模型中,使损失种类的计算更加完善;最后设计了一种动态决策算法对模型求解。实例研究结果表明,通过该算法可将不正常航班损失降为原来的44%,证明该算法在解决航班恢复问题时具有一定的优越性。 展开更多
关键词 航空运输 不正常航班 航空公司损失 动态决策算法 航班恢复
下载PDF
实现水量交换的深圳市中西部水库群优化调度研究 被引量:1
3
作者 黄强 金文婷 刘任远 《西安理工大学学报》 CAS 北大核心 2014年第2期127-132,共6页
在分析提高城市供水保证率、减少缺水量、实现公明水库战略储备水资源需求的基础上,建立了多目标水库群供水联合优化调度模型,将多目标优化模型转化为单目标模型,采用决策动态优选的自适应算法求解模型,结论为:深圳市中西部城市供水保... 在分析提高城市供水保证率、减少缺水量、实现公明水库战略储备水资源需求的基础上,建立了多目标水库群供水联合优化调度模型,将多目标优化模型转化为单目标模型,采用决策动态优选的自适应算法求解模型,结论为:深圳市中西部城市供水保证率达到98%,高于设计保证率97%,满足供水需求;公明水库多年平均交换水量为7.230×107 m3,占到储备库容的近60%,多年平均蓄满周期为1.62年,实现了战略储备水量目标;得到了北线引水给各水库补水比例分别为茜坑17.7%,鹅颈8.8%,石岩51.1%,剩余22.4%水量蓄入公明水库作为储备水量。研究成果对深圳市中西部水库群联合供水和保障水库水质安全,以及发挥生态环境和社会效益具有重要作用。 展开更多
关键词 城市供水 水库群优化调度模型 决策动态优选的自适应算法 储备水量 交换水量
下载PDF
Towards a Dynamic Controller Scheduling-Timing Problem in Software-Defined Networking 被引量:2
4
作者 Zhenping Lu Fucai Chen +2 位作者 Guozhen Cheng Chao Qi Jianjian Ai 《China Communications》 SCIE CSCD 2017年第10期26-38,共13页
Controller vulnerabilities allow malicious actors to disrupt or hijack the Software-Defined Networking. Traditionally, it is static mappings between the control plane and data plane. Adversaries have plenty of time to... Controller vulnerabilities allow malicious actors to disrupt or hijack the Software-Defined Networking. Traditionally, it is static mappings between the control plane and data plane. Adversaries have plenty of time to exploit the controller's vulnerabilities and launch attacks wisely. We tend to believe that dynamically altering such static mappings is a promising approach to alleviate this issue, since a moving target is difficult to be compromised even by skilled adversaries. It is critical to determine the right time to conduct scheduling and to balance the overhead afforded and the security levels guaranteed. Little previous work has been done to investigate the economical time in dynamic-scheduling controllers. In this paper, we take the first step to both theoretically and experimentally study the scheduling-timing problem in dynamic control plane. We model this problem as a renewal reward process and propose an optimal algorithm in deciding the right time to schedule with the objective of minimizing the long-term loss rate. In our experiments, simulations based on real network attack datasets are conducted and we demonstrate that our proposed algorithm outperforms given scheduling schemes. 展开更多
关键词 software-defined networking network security controller
下载PDF
The Jointed Decision Model on a Newsboy-type Ordering and Pricing for Retailer
5
作者 Bin Liu Hui Zhang Sifeng Liu 《Journal of Systems Science and Information》 2006年第3期467-475,共9页
This paper deals with the jointed decision question on ordering and pricing for a short-life-cycle product under stochastic multiplicative demand depended selling price. According to the marketing practices, which ret... This paper deals with the jointed decision question on ordering and pricing for a short-life-cycle product under stochastic multiplicative demand depended selling price. According to the marketing practices, which retailers sell their products in different periods with the different marketing policies, we depict the jointed decision question with a stochastic dynamic programming model from the view of the centralized system. Then, we prove that the expected profit function are concave on decision vectors respectively, and develop the decision method for ordering and pricing. Lastly, we design the iterative search arithmetic to find the optimal decision vectors. 展开更多
关键词 newsboy model jointed decision stochastic dynamic programming iterative search arithmetic multiplicative demand
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部