基于蚁群算法的多移动机器人避障路径规划方法

为提高多移动机器人避障路径的规划能力,提出基于蚁群算法的多移动机器人避障路径规划方法。结合小扰动解析方法构建多移动机器人运动学模型,根据运动学特征建立避障路径分布约束参数;通过自适应蒙特卡洛定位法进行故障定位;根据定位信息,结合蚁群算法进行多移动机器人避障路径规划寻优控制。仿真结果表明,采用该方法进行多移动机器人避障路径规划的自适应寻优能力较好,机器人定位精度较高,提高了多移动机器人避障能力。     

混合智能算法在多约束优化问题中的应用

提出了一种将蚁群算法、遗传算法和粒子种群优化融合的混合智能算法来解决多约束最优路径和QoS路由问题。采用蚁群算法进行寻径生成初始群体,利用遗传算法对路径进行优化,利用PSO算法来优化蚁群算法中的信息素,优势互补。仿真结果表明该算法是可行、有效的。     

基于多态蚁群算法的多目标邮政物流车辆路径问题研究*

针对在现有邮路运输的基础上加载一体化物流项目后的邮政物流车辆调度与路径选择优化问题,建立了基于硬时间窗、车辆混合搭载、往返归集的多目标邮政物流车辆路径问题数学模型,以四川邮政雅芳一体化混合物流2008年5月的数据为例,利用自适应的多态蚁群算法对带时间约束多目标混合邮政物流VRP进行了求解。结果表明多态蚁群算法可以求解多目标邮政物流VRP,能提高收敛速度和寻优性能。     

带交通约束的多目标优化混合算法

针对实际交通中带约束的多目标问题,提出一种基于分层GA-AS算法的多目标路径优化算法。该算法通过约束条件对路网进行分层,采用蚁群算法对各子网进行寻优,利用遗传算法在各子网寻优的基础上进行全局寻优。算例仿真结果表明,该算法既具有较强的实际应用效果,又在很大程度上减少寻优计算次数,提高算法的性能。     

蚁群参数自适应调整的优化设计*

介绍了蚁群优化算法利用粗搜索及精搜索过程获得多维有约束函数优化的基本思想,分析了影响蚁群优化多维有约束函数问题的关键参数,给出了获得较好的蚁群函数优化性能必须在优化过程中动态的自适应地调整蚁群优化算法的关键参数 及 的指导性结论,且调整的规则是 与 的值由大到小的调整,而 的值将由小到大的调整。建立了 及 的模糊动态调整器,给出了3个模糊控制器的参数调整过程、控制器的执行策略及控制过程。采用起重机主梁优化实例对比验证了蚁群优化算法及蚁群参数自适应调整的优化算法。结果表明,采用蚁群参数自适应调整的优化算法具有求解精度高、优化效率高及参与优化的蚁群数量少等优点,该方法是求解复杂多峰函数优化的一种极好的优化方法。     

智能采购轨迹自适应调度方法研究

为了提高智能采购轨迹调度和寻优控制能力,提出基于网格分区块空间规划的智能采购轨迹自适应调度方法.构建智能采购轨迹参数融合模型,结合大数据挖掘和模糊度检测的方法对空间网格参数进行寻优和特征匹配,通过最短路径寻优方法进行节点和路径优化部署,提取智能采购轨迹的融合分布特征参数集,通过时延参数估计和时滞误差补偿方法融合分析状态...     

基于B样条曲线的电力巡检机器人越障控制

为了提高电力巡检机器人越障控制能力,该文提出基于B样条曲线的电力巡检机器人越障控制技术,首先构建电力巡检机器人的被控对象模型,结合电力巡检机器人驱动动力学分布,进行电力巡检机器人的定位控制,同时采用避障算法进行电力巡检机器人巡检过程中的越障控制,结合位姿参数的自适应调节方法进行电力巡检机器人越障运动学模型构造。在此基础上,建立电力巡检机器人越障控制目标函数,采用B样条曲线跟踪寻优方法进行机器人的越障路径规划,采用自适应的模糊信息加权方法,进行电力巡检机器人越障控制优化。仿真结果表明,采用该方法进行电力巡检机器人运动轨迹测定分布结果稳定,接近运动轨迹的标准值。其越障控制的灵敏度较高,自适应控制能力较强,电力巡检机器人运动轨迹测定分布结果稳定,提高了电力巡检机器人越障性能。     

基于GAAA算法的深海集矿车的最优路径规划

针对提高深海集矿车的集矿效率,实现最优路径规划的目标,建立了从起始点到达目的点时,集矿机所需时间最短、耗能最少的多目标优化问题的模型,并通过对子目标加权将多目标优化问题转换成单目标优化;在蚁群算法的基础上,采用了将遗传算法与蚁群算法相融合的算法,即GAAA算法;对集矿车作业路径进行寻优控制,在实现高集矿覆盖率和集矿效率的同时,提高了集矿车整机作业效率;仿真实验表明,GAAA算法用于集矿车路径寻优是可行的和有效的。     

基于信息融合的分布式多维自适应蚁群优化算法研究

通过参数优化、与其他优化算法融合等手段对蚁群算法进行改进,能有效地提高蚁群算法的全局寻优能力,改善其收敛性能。随着搜索路径多维,以及复杂分布式系统蚂蚁迭代次数的增加,蚁群动态多样性逐渐消失,容易陷入局部最优。通过对蚁群算法存在的问题进行分析,设计了多维系统各子蚁群时间同步方案以及信息融合时间窗口开启策略;针对影响蚁群算法的主要参数,提出动态认知的参数自适应调整改进算法,实现算法初期路径选择的多样性、成熟后可提高算法的寻优效率。以解决TSP问题为例,对启发式因子、信息素挥发因子等主要参数对蚁群最优路径影响进行仿真分析。     

基于量子蚁群算法的带约束QoS多播路由

针对带约束服务质量多播路由在带宽、延迟等方面的需求,提出一种基于量子蚁群算法的多播路由优化方法。该方法结合量子计算和蚁群算法的特性,采用量子比特的概率幅表示蚂蚁当前位置信息,设计一种动态调整旋转角策略对蚂蚁信息素进行更新,使蚂蚁能够快速寻找到满足约束的可行路径,并避免陷入局部最优。仿真实验结果表明,该算法在寻优能力和收敛速度上表现较好。     

多种人工智能算法的数据库技术课程自动组卷比较

在线考试被广泛应用在远程教育上,自动化组卷是在线考试的关键技术,组卷问题即是多目标期望值的求解问题,其往往存在多个解,人工智能算法对于求解多目标函数有明显优势.采用遗传算法及蚁群算法的多目标优化求解更加高效,能更好胜任于本文数据库技术课程的自动化组卷.在讨论人工智能算法在组卷应用基础上,构建了组卷指标体系,建立多目标约束数学模型,并对多目标期望值进行优化求解.多次实验结果论证表明,人工智能算法的成功率最高,平均达到98%以上（含蚁群算法100%,遗传算法96%）,而非人工智能的算法成功率较低,随机变量法62%,回溯试探法84%.应用人工智能方法特别是遗传算法和蚁群算法,提升了自动化组卷效率,满足了实际各种组卷的需要,使其在远程教育和在线考试中有很好的应用前景.     

Study on the algorithm for smart community sensor network routing with adaptive optimization via cluster head election

To reduce the uneven energy consumption for the data transmission and extend network life of intelligent community sensor network, an adaptive routing optimized algorithm for intelligent community sensor networks with cluster head election is proposed. In this algorithm, a three-dimensional clustering method adapted to the structure of intelligent community sensor network is proposed. The three-dimensional clustering method uses the cluster head election mechanism based on minimizing the total transmission loss to optimize the energy of the intelligent community sensor network. Second, an adaptive ant colony propagation method is proposed to solve the problem of intercluster data propagation after clustering. With the best path finding algorithm of ant colony algorithm, energy balance routing with lower energy loss and lower packet error rate is proposed. Finally, the simulation results show that the algorithm has better performance in reducing energy consumption and delay, improving transmission efficiency and node survival time.     

基于蚁群算法的QoS多播路由优化算法

蚁群算法是一种新型的随机优化算法,能有效地解决 QoS 受限的多播路由问题。基于蚂蚁具有找到蚁巢与食物之间的最短路径原理工作,并在分析多约束QoS的多播路由的基础上,提出了一种具有全局优化能力的多播路由算法(OQMRA),仿真实验表明了该算法是合理的和有效的。     

基于自适应蚂蚁算法的动态最优路由选择

蚂蚁算法具有很强的随机性和自适应性，基于蚂蚁圈模型和MMAS模型构造的自适应蚂蚁算法，将网络的容量限制、流量变化和最短距离结合起来讨论，通过在找到的最短路径上设置障碍物来模拟网络拥塞，找到源结点→目的结点的多条最优路由序列，以便在实际中实时地、自适应地进行动态路由选择。     

自适应路由蚁群算法在导弹残骸搜索中的应用

防空导弹飞行试验后弹目残骸有着重要价值.根据残骸搜索的实际需求,把残骸落点纳入到路网中,结合自适应路由算法,改进了基本蚁群算法,解决了靶场残骸搜索的最优路径问题.蚁群算法有收敛性较差、易于过早陷入局部最优等不足,通过构建蚁群、引入信息素约束条件、调整信息素初始值、自适应改变信息素增量等技术,增强了蚁群搜索能力,改善了算法收敛速度.仿真表明该算法易于编程实现,时延小,鲁棒性强,实用性好.     

Routing table updating by using intelligent agents

In a network, one of the important problems is making an efficient routing decision. Many studies have been carried out on making a decision and several routing algorithms have been developed. In a network environment, every node has a routing table and these routing tables are used for making routing decisions. Nowadays, intelligent agents are used to make routing decisions. Intelligent agents have been inspired by social insects such as ants. One of the intelligent agent types is self a cloning ant. In this study, a self cloning ant colony approach is used. Self cloning ants are a new synthetic ant type. This ant assesses the situation and multiplies through cloning or destroying itself. It is done by making a routing decision and finding the optimal path. This study explains routing table updating by using the self cloning ant colony approach. In a real net, this approach has been used and routing tables have been created and updated for every node.     

Ant colony optimization for routing and load-balancing: survey and new directions

Although an ant is a simple creature, collectively a colony of ants performs useful tasks such as finding the shortest path to a food source and sharing this information with other ants by depositing pheromone. In the field of ant colony optimization (ACO), models of collective intelligence of ants are transformed into useful optimization techniques that find applications in computer networking. In this survey, the problem-solving paradigm of ACO is explicated and compared to traditional routing algorithms along the issues of routing information, routing overhead and adaptivity. The contributions of this survey include 1) providing a comparison and critique of the state-of-the-art approaches for mitigating stagnation (a major problem in many ACO algorithms), 2) surveying and comparing three major research in applying ACO in routing and load-balancing, and 3) discussing new directions and identifying open problems. The approaches for mitigating stagnation discussed include: evaporation, aging, pheromone smoothing and limiting, privileged pheromone laying and pheromone-heuristic control. The survey on ACO in routing/load-balancing includes comparison and critique of ant-based control and its ramifications, AntNet and its extensions, as well as ASGA and SynthECA. Discussions on new directions include an ongoing work of the authors in applying multiple ant colony optimization in load-balancing.     

基于蚂蚁算法的QoS分布式多播路由选择

采用启发式算法中蚂蚁算法解决包含带宽、时延和最小代价约束条件在内的分布式多播路由问题,基于蚂蚁具有找到蚁巢与食物之间的最短路径原理,并在分析QoS分布式多播路由的基础上,提出了一种基于蚁群算法的QoS分布式多播路由算法,仿真实验表明了该算法是合理的和有效的。     

Subdomain generation using emergent ant colony optimization

Finite elements mesh decomposition is a well known optimization problem and is used to split a computationally expensive finite elements mesh into smaller subdomains for parallel finite elements analysis.The ant colony optimization is a type of algorithm that seeks to model the emergent behaviour observed in ant colonies and utilize this behaviour to solve combinatorial problems. This technique has been applied to several problems, most of which are graph related because the ant colony metaphor can be most easily applied to such types of problems. This paper examines the application of ant colony optimization algorithm to the partitioning of unstructured adaptive meshes for parallel explicit time-stepping finite elements analysis.The concept of ant colony optimization technique in addition to the notion of swarm intelligence for finding approximate solutions to combinatorial optimization problems is described. This algorithm combines the features of the classical ant colony optimization technique with swarm intelligence to form a model which is an artificial system designed to perform a certain task.The application of the ant colony optimization for partitioning finite elements meshes based on triangular elements using the swarm intelligence concept is described. A recursive greedy algorithm optimization method is also presented as a local optimization technique to improve the quality of the solutions given by the ant colony optimization algorithm. The partitioning is based on the recursive bisection approach.The mesh partitioning is carried out using normal and predictive modes for which the predictive mode uses a trained multi-layered feedforward neural network that estimates the number of triangular elements that will be generated after finite elements mesh generation is carried out.The performance of the proposed hybrid approach for the recursive bisection of finite elements meshes is examined by decomposing two mesh examples and comparing them with a well known finite elements domain decomposer.     

混沌扰动模拟退火蚁群算法低碳物流路径优化

低碳物流是目前物流配送领域的热点研究课题,也是群体智能优化算法的重要应用方向。针对物流配送中碳排放的度量方法,以VRP问题为基本模型,以碳排放成本为目标函数,建立了低碳物流配送路径优化模型。为了避免基本蚁群算法出现停滞及早熟现象,提出了带混沌扰动的模拟退火蚁群算法来求解低碳物流配送路径优化模型。该算法将混沌系统及模拟退火机制引入基本蚁群算法,避免了算法陷入局部最优,增强了全局搜索能力,提高了求解效率。通过实验仿真及对比分析可知,带混沌扰动的模拟退火蚁群算法的求解结果明显优于基本蚁群算法,表明了该算法的有效性和合理性。