智能优化算法求解TSP 问题

TSP（旅行商）问题代表组合优化问题，具有很强的工程背景和实际应用价值，但至今尚未找到非常有效的求解方法．为此，讨论了最近研究比较热门的使用各种智能优化算法（蚁群算法、遗传算法、模拟退火算法、禁忌搜索算法、Hopfield神经网络、粒子群优化算法、免疫算法等）求解TSP问题的研究进展，指出了各种方法的优缺点和改进策略．最后总结并提出了智能优化算法求解TSP问题的未来研究方向和建议．     

TSP问题的禁忌模拟退火求解

提出了一种加入了禁忌表、并且采用了新的温度控制机制的用于求解TSP问题的模拟退火算法。新算法增加了搜索结束阶段进行“爬坡”移动的概率,吸收了禁忌搜索具有较强局部搜索能力的优点和模拟退火算法产生优质解的能力,并且对问题的依赖性低于传统的模拟退火算法。对标准的TSPLib中不同国家的城市数据进行测试的实验结果表明,新的算法比传统的模拟退火算法在求解TSP问题上有更快的收敛速度,在解的质量上也有一定程度的提高。     

一种适用于求解TSP问题的改进的禁忌算法

利用传统的禁忌算法的基本思想,针对TSP问题,提出了一种改进的禁忌算法（MTS）。该算法在初始解的生成,邻域结构及禁忌策略方面进行了大的改进,充分地利用了问题本身的启发式信息与禁忌算法的优点。算法首先通过对城市分区,然后对区域连接,生成初始解;同时生成每个城市的k邻居列表,利用k邻居列表和改进的禁忌策略来突破局部最优。通过对CHN144问题及若干TSPLIB中问题的求解,结果表明所提算法能够以较快速度求得较好的满意解。     

禁忌搜索求解TSP问题

本文采用改进的禁忌搜索算法求解TSP问题,该算法是通过禁忌准则来避免迂回搜索,并通过藐视准则来赦免一些被禁忌的优良状态,最终实现全局优化。实验结果证明该算法的可行性。     

基于禁忌搜索的人工蜂群算法

针对人工蜂群算法（Artificial Bee Colony,ABC）邻域搜索能力不强且容易陷入局部最优的不足,引入禁忌搜索的思想,提出了基于禁忌搜索的人工蜂群算法（TS_ABC）。TS_ABC算法在ABC算法的基础上加入两个禁忌表,分别记为禁忌表T1和禁忌表T2。禁忌表T1的长度是有限的,存储蜜蜂访问过的当前解;禁忌表T2的长度是无限的,存储优化[limit]次后没有改进的解。蜜蜂在蜜源位置搜索新解时要跳过禁忌表里的解,这样避免了重复搜索,增强了邻域搜索能力,克服了容易陷入局部最优。15个标准函数上实验结果表明：（1）TS_ABC的性能优于ABC算法;（2）在求解多峰函数最优解时,TS_ABC性能更加优于ABC算法;（3）随着函数维数的增加,相对于ABC算法,TS_ABC性能提高更多。3个标准函数上实验结果表明：TS_ABC算法性能优于ABC算法,即提出的使用两个禁忌表的方法优于只使用一个禁忌表的方法。     

一种求解TSP问题的改进禁忌搜索算法

禁忌搜索算法作为一种新兴的智能搜索算法,已被广泛应用于各类优化问题。本文综合解向量的分量变化和目标值变化,提出一种新的候选解和当前解选择策略,并用改进的新算法求解TSP问题。实验表明新的算法具有良好的性能。     

有卸货顺序约束的集装箱装载问题及算法研究

对有卸货顺序约束的三维集装箱问题进行了描述.基于禁忌规则,采用了求解该问题的模拟退火算法,设计了货物的摆放规则和序列生成方式.采用3种邻域,根据邻域的不同,构造了2种禁忌表.根据问题的特点,在模拟退火算法抽样过程中加入了禁忌规则.介绍了算法的原理,给出了具有代表性算例试验结果并且进行了分析.试验结果表明,提出的混合算法对有卸货顺序约束的集装箱三维装载问题的有效性.     

基于禁忌搜索的QoS路由算法

多约束的QoS路由问题是NP完全问题,该文将禁忌搜索算法引入多约束QoS路由计算中,提出了一种基于禁忌搜索的QoS路由算法QoS_TS。该算法通过设置长期记忆禁忌表和短期记忆禁忌表以及有效的评价函数,保证了算法实现过程中多样化的有效搜索。文章给出了算法实现的具体流程。实验仿真表明,该算法具有较高的搜索效率和较快的收敛性,通过该算法得到的路由不但满足QoS约束要求,同时可以均衡链路负载,减少路由拥塞。     

改进的哈里斯鹰算法求解农产品供应链调度

针对农产品流通体系的效率低、流通链条协同效率不高、紧急情况下食品供给慢等问题,通过将农产品供应链调度问题建模成混合流水车间调度问题。结合禁忌搜索算法中禁忌表机制,离散化实数编码,提出了一种改进的哈里斯鹰算法来求解农产品供应链调度问题。该方法相比较原始的哈里斯鹰算法,降低了算法陷入局部最优的可能,进一步提高了算法的求解精度。实验结果表明：相比较对比算法,改进的哈里斯鹰算法在提出的农产品供应链调度问题模型上取得了更好的效果。     

一种模拟退火算法与禁忌搜索算法的混合算法

通过结合模拟退火算法与禁忌搜索算法的优点,提出一个组合算法,并将其应用到旅行商问题（TSP）中。并用C＋＋实现一般的模拟退火算法和这种组合的模拟退火算法．比较结果显示出这种组合算法可以得到更好的结果。     

Scheduling unrelated parallel machines with sequence-dependent setups

A methodology for minimizing the weighted tardiness of jobs in unrelated parallel machining scheduling with sequence-dependent setups is presented in this paper. To comply with industrial situations, the dynamic release of jobs and dynamic availability of machines are assumed. Recognizing the inherent difficulty in solving industrial-size problems efficiently, six different search algorithms based on tabu search are developed to identify the best schedule that gives the minimum weighted tardiness. To enhance both the efficiency and efficacy of the search algorithms, four different initial solution finding mechanisms, based on dispatching rules, are developed. While there is no evidence of identifying solutions of better quality by employing a specific initial solution finding mechanism, the use of a specific search algorithm led to identifying solutions of better quality or that required lower computation time, but not both. Based on the extensive statistical analysis performed, the search algorithm with short-term memory and fixed tabu list size is recommended for solving small size problems, while that with long-term memory and minimum frequency for solving medium and large size problems, combined with fixed tabu list size for the former and variable tabu list size for the latter.     

A parallel adaptive tabu search approach

This paper presents a new approach for parallel tabu search based on adaptive parallelism. Adaptive parallelism was used to dynamically adjust the parallelism degree of the application with respect to the system load. Adaptive parallelism demonstrates that high-performance computing using a hundred of heterogeneous workstations combined with massively parallel machines is feasible to solve large optimization problems. The parallel tabu search algorithm includes different tabu list sizes and new intensification/diversification mechanisms. Encouraging results have been obtained in solving the quadratic assignment problem. We have improved the best known solutions for some large real-world problems.     

一种基于禁忌搜索算法的流程挖掘方法

为了满足高效率的自动化生产需要,支持流程控制的工作流管理系统 的应用越来越广泛。流程挖掘可以使用事件日志等历史数据生成抽象流程模型,为工作流系统的部署提供有利条件。首先总结归纳了一种较通用的基于启发式优化算法的流程挖掘框架;然后依照该流程挖掘框架将禁忌搜索算法用于流程挖掘领域,针对禁忌搜索中程序初始化、邻域构建方法和禁忌表构造等几个关键问题进行了详细阐述和论证;最后将算法实现为ProM的插件并进行了对比实验。实验验证了该流程挖掘框架的正确性,表明了禁忌搜索流程挖掘方法对不同流程结构具有良好支持,对数据噪声具有较强的鲁棒性和更少的时间消耗。     

多维背包问题的禁忌搜索求解

借鉴认知心理学有关记忆系统的表述，在禁忌搜索算法中引入长时记忆，构造了基于双禁忌表的禁忌搜索算法。多维0-1背包问题的仿真实验表明，该算法是可行的、有效的。     

Using tabu search with ranking candidate list to solve production planning problems with setups

This study considers production planning problems involving multiple products, multiple resources, multiple periods, setup times, and setup costs. It can be formulated as a mixed integer program (MIP). Solving a realistic MIP production planning problem is NP-hard; therefore, we use tabu search methods to solve such a difficult problem. Furthermore, we improve tabu search by a new candidate list strategy, which sorts the neighbor solutions using post-optimization information provided by the final tableau of the linear programming simplex algorithm. A neighbor solution with higher priority in the ranking sequence has a higher probability of being the best neighbor solution of a current solution. According to our experiments, the proposed candidate list strategy tabu search produces a good solution faster than the traditional simple tabu search. This study also suggests that if the evaluation of the entire neighborhood space in a tabu search algorithm takes too much computation and if an efficient and effective heuristic to rank the neighbor solutions can be developed, the speed of tabu search algorithm could be significantly increased by using the proposed candidate list strategy.     

Regularization of boosted decision stumps using tabu search

This study proposes a novel method to improve the well-known AdaBoost algorithm by combining it with a procedure inspired by tabu search. After each iteration of AdaBoost, the attribute used by the weak learner is placed on the tabu list, which prevents it from being utilized by the subsequent weak learners. The length of the tabu list becomes a new meta-parameter of the learning process and can be tuned based on the cross-validation procedure. This study shows that the proposed approach can improve the original AdaBoost procedure, preventing it from over-fitting to training data. This study also demonstrates that the novel method can act as a regularization procedure. Finally, the paper presents results for the proposed algorithm for 20 classification problems from the UCI repository and for face verification and gender recognition problems.     

求解动态车辆调度问题的混合禁忌搜索算法

对带时间窗的动态车辆调度问题进行分析,引入虚拟点和时间轴概念,建立基于时间轴的动态车辆调度模型,并提出基于C-W节约法和禁忌搜索的混合禁忌搜索算法进行求解.算法中使用动态方法构造候选解和动态禁忌长度的选取策略来提高算法的收敛速度,最后通过测试实例验证了该混合算法解决动态车辆调度问题的有效性和可行性.     

The strategies and parameters of tabu search for job-shop scheduling

This paper presents a tabu search approach for the job-shop scheduling problem. Although the problem is NP-hard, satisfactory solutions have been obtained recently by tabu search. However, tabu search has a problem-specific and parametric structure. Therefore, in the paper, we focussed on the tabu search strategies and parameters such as initial solution, neighborhood structure, tabu list, aspiration criterion, elite solutions list, intensification, diversification and the number of iteration. In order to compare some neighborhood strategies and tabu list length methods, a computational study is done on the benchmark problems.     

基于遗传禁忌搜索的网格资源选择算法

资源是网格的主体,建立网格的目的就是要管理好的各种网格资源,最大程度地实现资源共享.把网格上的资源和用户请求进行匹配,把合适的可用资源提供给用户使用是网格管理的核心内容.分析了目前常用的资源选择算法,并在此基础上,提出了一种新的算法.该算法结合了遗传算法和禁忌搜索算法的优点,利用禁忌搜索中的禁忌列表来对遗传算法中交换进行有效的限制,避免进入局部搜索.最后通过试验将新算法与遗传算法进行比较.     

一种基于禁忌搜索的RFID读写器部署算法*

为解决射频识别（RFID）读写器部署问题,提出了一种基于禁忌搜索算法的读写器部署方法。在增加了读写器容量约束的读写器部署模型基础上,采用禁忌搜索算法来寻找最优部署方案。通过仿真可以得出该算法性能稳定。与遗传算法的数据对比,提出的基于禁忌搜索的读写器部署方法在覆盖率大于遗传算法的同时,迭代次数小于遗传算法。