 全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多   共条 当前为第1条到20条 启发式算法 A HEURISTIC ALGORITHM FOR THREE DIMENSION PACKING PROBLEM 集装箱装载的一种启发式算法 The Two-dimension Optimization Arranging Heuristic Algorithm and Its Application in the Yangtse Gorges Permanent Ship Lock Decision System 二维优化编排启发式算法及其在三峡永久船闸调度决策系统中的应用 Study on Heuristic Algorithm for Public Transport Network Multi-Path Selection 公交网络多路径选择启发式算法研究 A HEURISTIC ALGORITHM FOR VEHICLE ROUTING 货运汽车调度的一种启发式算法 A Heuristic Algorithm for Finding Wagon Flow Path in Railway Network 求解路网上车流径路的启发式算法 A Heuristic Algorithm for Multi-O-D Real-Time Transportation Prob lems with Time-Constraint 多供需点带时间约束实时调运问题的启发式算法 A heuristic algorithm for vehicle routing 车辆路径问题(VRP)的一个启发式算法 Based on reading lots of correlate papers, the author modify saving heuristic algorithm and genetic algorithm constructed to solve vehicle routing problem with wide time window. 论文在研究大量相关资料的基础上，修正节约启发式算法和标准遗传算法用于解决宽时间窗VRP。 Also a progressed Genetic Algorithm is designed for this model. Result is obtained with the adoption of hybrid genetic algorithm constructed of genetic algorithm and heuristic algorithm. 其次采用遗传算法结合启发式算法而构造的混合遗传算法对模型进行优化求解,并讨论了遗传算法中复制、交叉、变异等遗传算子参数值的选取。 Comparing the other concerned algorithm, we find that the simulated annealing algorithm has two characters: the strong ability of overall search range and quickly convergent speed. Then we propose the heuristic algorithm based on spacefilling curves (SFC) and the simulated annealing algorithm. 本文通过对不同算法分析比较，依据模拟退火算法具有全局搜索能力强，收敛速度快的特点，提出了基于空间填充曲线法和模拟退火算法求解定位-车辆路线问题的启发式算法。 Chapter Four builds the linear program model according to the former chapters. A heuristic algorithm is used to solve the model. 第四章根据前面对班轮运输网络的成本效率优化的分析，建立了线性规划模型，并运用了一启发式算法来对模型进行求解，解释了启发式算法的各步骤。 With the conception of the inter-line dispatching and its model, five models are built respectively for the abnormal situations, which are subsequently implemental with heuristic algorithm respectively as well. 在跨线运力协调配置思路的指导下,结合跨线运力调配模型,针对五大类异常运行状态分别建立了模型,并设计了启发式算法对五类异常情况下的行车计划编制模型加以实现。 Because of complex property,a heuristic algorithm which is based on step acceleration method and penalty function method is proposed,and a numerical example is given. 基于双层模型求解的复杂性 ,设计了一个基于步长加速法和惩罚函数法的启发式算法 ,实例计算表明该模型与算法是有效的。 Based on the discussion of the single -O -D agile transportation algorithm,this paper develops a heuristic algorithm fo r Transportation Problems with Time-Constraint ,and gives an example in the e nd. 文章从单O-D快速运输的思路出发,对多供需点带时间约束调运问题给出了启发式算法,最后给出了算例。 In this paper, we present a new model of VRP and a heuristic algorithm based on the greedy algorithm. It found a lower bound, and an example of this algorithm is proposed. 本文提出一个新的VRP模型及基于贪婪算法的启发式算法 ,并给出了算法的一个下界 ,最后给出一个算例 Lock chamber arranging and scheduling is a NP totality problem. At frist, this paper builds up the mathematical model to solve this problem, then brings forward a heuristic algorithm solving the contradiction between room area utilization and ships' priority effectively, at last, proves the ability of the algorithm to improve the efficiency of lock running using experimental data. 闸室编排调度是一个NP—完全问题 ,本文首先建立解决该问题的数学模型 ,然后提出一个启发式算法 ,有效地解决了闸室面积利用率和过闸船舶优先级之间矛盾的问题 ,最后用试验数据说明该算法可提高三峡船闸的实际编排调度的效率 Because of complex property of solving bi level model, a heuristic algorithm which is based on step acceleration method and penalty function method is proposed, and in the end,a numerical example is given. 鉴于双层模型求解的复杂性 ,设计了一个基于步长加速法和惩罚函数法的启发式算法 ; 实例计算表明 ,该组合模型的结果比纯拥挤道路使用收费的结果更合理、更容易为公众所接受 ,增强了实施拥挤道路使用收费的可行性 An heuristic algorithm RO based on the idea of nearest vertices pairing and guillotine cut technique is designed to solve the reasonable orientation problem. Taking the Jinan's road orientation problem as an instance, a reasonable plan with the algorithm RO is provided. 利用就近配对思想与断头切技术设计了合理定向问题的启发式算法 ,以济南市实际道路定向问题作为实例 ,得到济南市道路定向的一个合理方案 . Based on analyzing the characteristic of the multiple depot vehicle scheduling (MDVS) problem with full loads, this paper put forward a optimization model, designed heuristic algorithm. Application example shows that this algorithm is feasible. 4 tabs, 4 figs, 8 refs. 针对多车场满载运输问题的特征,提出了多车场车辆优化调度的数学模型,设计了求解该问题的启发式算法,应用结果表明,该算法是可行的。 Authors formulate a mixed integral model and present a heuristic algorithm for this problem. 在此基础上给出了启发式算法,并通过启发式算法和分支定界法对一个算例进行计算比较。

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