A modified artificial bee colony approach for the 0-1 knapsack problem

The 0-1 knapsack problem (KP01) is one of the classical NP-hard problems in operation research and has a number of engineering applications. In this paper, the BABC-DE (binary artificial bee colony algorithm with differential evolution), a modified artificial bee colony algorithm, is proposed to solve KP01. In BABC-DE, a new binary searching operator which comprehensively considers the memory and neighbour information is designed in the employed bee phase, and the mutation and crossover operations of differential evolution are adopted in the onlooker bee phase. In order to make the searching solution feasible, a repair operator based on greedy strategy is employed. Experimental results on different dimensional KP01s verify the efficiency of the proposed method, and it gets superior performance compared with other five metaheuristic algorithms.     

基于分布估计蜂群算法的多用户检测器

为了提高二进制人工蜂群算法的全局探索能力,提出一种基于分布估计算法的二进制人工蜂群算法,并应用到最优多用户检测技术中,设计出基于分布估计二进制人工蜂群算法的多用户检测方案。该方案采用直接针对离散域的多维邻域搜索策略,加快了收敛速度,避免了连续域到离散域的转换,同时利用分布估计算法获得的全局统计信息产生候选解,提高了算法性能。仿真结果表明,与传统检测器相比,所设计检测器的收敛速度明显加快,误码率性能和抗远近效应能力显著提高。     

Optimal job scheduling in grid computing using efficient binary artificial bee colony optimization

The artificial bee colony has the advantage of employing fewer control parameters compared with other population-based optimization algorithms. In this paper a binary artificial bee colony (BABC) algorithm is developed for binary integer job scheduling problems in grid computing. We further propose an efficient binary artificial bee colony extension of BABC that incorporates a flexible ranking strategy (FRS) to improve the balance between exploration and exploitation. The FRS is introduced to generate and use new solutions for diversified search in early generations and to speed up convergence in latter generations. Two variants are introduced to minimize the makepsan. In the first a fixed number of best solutions is employed with the FRS while in the second the number of the best solutions is reduced with each new generation. Simulation results for benchmark job scheduling problems show that the performance of our proposed methods is better than those alternatives such as genetic algorithms, simulated annealing and particle swarm optimization.     

The continuous artificial bee colony algorithm for binary optimization

Artificial bee colony (ABC) algorithm, one of the swarm intelligence algorithms, has been proposed for continuous optimization, inspired intelligent behaviors of real honey bee colony. For the optimization problems having binary structured solution space, the basic ABC algorithm should be modified because its basic version is proposed for solving continuous optimization problems. In this study, an adapted version of ABC, ABC_bin for short, is proposed for binary optimization. In the proposed model for solving binary optimization problems, despite the fact that artificial agents in the algorithm works on the continuous solution space, the food source position obtained by the artificial agents is converted to binary values, before the objective function specific for the problem is evaluated. The accuracy and performance of the proposed approach have been examined on well-known 15 benchmark instances of uncapacitated facility location problem, and the results obtained by ABC_bin are compared with the results of continuous particle swarm optimization (CPSO), binary particle swarm optimization (BPSO), improved binary particle swarm optimization (IBPSO), binary artificial bee colony algorithm (binABC) and discrete artificial bee colony algorithm (DisABC). The performance of ABC_bin is also analyzed under the change of control parameter values. The experimental results and comparisons show that proposed ABC_bin is an alternative and simple binary optimization tool in terms of solution quality and robustness.     

结合ABC算法动态分级的双蚁态蚁群算法

针对蚁群算法收敛速度慢、易陷入局部最优等问题，结合人工蜂群算法的分级思想，提出动态分级的双蚁态蚁群算法。根据适应度不同，将蚁群划分为寻优蚁和侦查蚁，并执行不同加权系数的动态信息素更新策略：寻优蚁负责较优路径的搜索，执行较大权重的信息素更新策略，以增强其导向性，提高算法收敛速度。侦查蚁则负责探索非较优路径，发现其他更优解，以保证算法多样性。然后，每次迭代结束则两类蚂蚁进行优良解交换，以提高解的质量。以旅行商问题为例，将其与经典蚁群算法、最新蚁群改进算法以及其他最新优化算法进行对比，其表现皆更优。     

一种基于蜂群原理的划分聚类算法*

针对现有的大部分划分聚类算法受聚类簇的个数K的限制,提出一种基于蜂群原理的划分聚类算法。该方法通过引入蜂群采蜜机制,将聚类中心视为食物源,通过寻找食物源的自组织过程来实现数据对象的聚集。在聚类的过程中引入紧密度函数来评价聚类中心（局部）,引入分离度函数来确定最佳聚类簇的个数（全局）。与传统的划分聚类算法相比,本算法无须指定聚类个数即可实现聚类过程。通过仿真实验表明,本文提出的算法不但对最佳聚类数有良好的搜索能力,而且有较高的准确率：算法时间复杂度仅为O（n*k3）(k<相似文献   

混合离散人工蜂群算法求解含不相关并行机的分布式柔性流水线调度

研究每阶段含不相关并行机的分布式柔性流水线调度问题.考虑顺序相关准备时间和工件动态到达时间,以最小化总加权提前/拖期惩罚为目标建立整数规划模型,提出一种融合离散差分进化算法、变邻域下降算法和局域搜索的混合离散人工蜂群算法以获取近优解.该算法采用基于工厂-工件号的编码以及基于机器最早空闲时间的动态解码机制,通过随机规则和均衡分派策略生成初始工厂-工件序列群,在引领蜂阶段引入离散差分进化算法产生优质工厂-工件序列,在跟随蜂阶段利用变邻域下降算法在被选择序列附近继续搜索以得到邻域序列,在侦察蜂阶段设计基于关键/非关键工厂间插入的局域搜索提高算法搜索能力.通过仿真实验测试不同规模的算例,实验结果表明,所提出的混合离散人工蜂群算法表现出较好的求解性能.     

A discrete artificial bee colony algorithm for the total flowtime minimization in permutation flow shops

Obtaining an optimal solution for a permutation flowshop scheduling problem with the total flowtime criterion in a reasonable computational timeframe using traditional approaches and optimization tools has been a challenge. This paper presents a discrete artificial bee colony algorithm hybridized with a variant of iterated greedy algorithms to find the permutation that gives the smallest total flowtime. Iterated greedy algorithms are comprised of local search procedures based on insertion and swap neighborhood structures. In the same context, we also consider a discrete differential evolution algorithm from our previous work. The performance of the proposed algorithms is tested on the well-known benchmark suite of Taillard. The highly effective performance of the discrete artificial bee colony and hybrid differential evolution algorithms is compared against the best performing algorithms from the existing literature in terms of both solution quality and CPU times. Ultimately, 44 out of the 90 best known solutions provided very recently by the best performing estimation of distribution and genetic local search algorithms are further improved by the proposed algorithms with short-term searches. The solutions known to be the best to date are reported for the benchmark suite of Taillard with long-term searches, as well.     

基于信息熵的改进人工蜂群算法

为了克服人工蜂群算法在处理复杂性问题时收敛速度慢、收敛精度不高、易早熟等缺陷,在原始人工蜂群算法的基础上引入信息熵。信息熵本身是不确定性的一种度量,由信息熵的值来度量人工蜂群算法中跟随蜂选择的不确定性,通过控制信息熵的值达到控制算法中跟随蜂选择过程的目的,实现算法的自适应调节。通过对测试函数和不同规模TSP问题的模拟仿真,对人工蜂群算法、蚁群算法和其他改进方法进行了对比,验证了所提出改进方法的可行性和有效性。     

Discrete bee algorithms and their application in multivariable function optimization

In this paper we present four discrete versions of two different existing honey bee optimization algorithms: the discrete artificial bee colony algorithm (DABC) and three versions of the discrete fast marriage in honey bee optimization algorithm (DFMBO1, DFMBO2, and DFMBO3). In these discretized algorithms we have utilized three logical operators, i.e. OR, AND and XOR operators. Then we have compared performances of our algorithms and those of three other bee algorithms, i.e. the artificial bee colony (ABC), the queen bee (QB), and the fast marriage in honey bee optimization (FMBO) on four benchmark functions for various numbers of variables up to 100. The obtained results show that our discrete algorithms are faster than other algorithms. In general, when precision of answer and number of variables are low, the difference between our new algorithms and the other three algorithms is small in terms of speed, but by increasing precision of answer and number of variables, the needed number of function evaluations for other algorithms increases beyond manageable amounts, hence their success rates decrease. Among our proposed discrete algorithms, the DFMBO3 is always fast, and achieves a success rate of 100% on all benchmarks with an average number of function evaluations not more than 1010.     

A binary ABC algorithm based on advanced similarity scheme for feature selection

Feature selection is the basic pre-processing task of eliminating irrelevant or redundant features through investigating complicated interactions among features in a feature set. Due to its critical role in classification and computational time, it has attracted researchers’ attention for the last five decades. However, it still remains a challenge. This paper proposes a binary artificial bee colony (ABC) algorithm for the feature selection problems, which is developed by integrating evolutionary based similarity search mechanisms into an existing binary ABC variant. The performance analysis of the proposed algorithm is demonstrated by comparing it with some well-known variants of the particle swarm optimization (PSO) and ABC algorithms, including standard binary PSO, new velocity based binary PSO, quantum inspired binary PSO, discrete ABC, modification rate based ABC, angle modulated ABC, and genetic algorithms on 10 benchmark datasets. The results show that the proposed algorithm can obtain higher classification performance in both training and test sets, and can eliminate irrelevant and redundant features more effectively than the other approaches. Note that all the algorithms used in this paper except for standard binary PSO and GA are employed for the first time in feature selection.     

具有混合群智能行为的萤火虫群优化算法研究

萤火虫群优化算法是一种新型的群智能优化算法,基本的萤火虫群优化算法存在收敛精度低等问题。为了提高算法的性能,借鉴蜂群和鸟群的群体智能行为,改进萤火虫群优化算法的移动策略。运用均匀设计调整改进算法的参数取值。若干经典测试问题的实验仿真结果表明,引入混合智能行为大幅提升了算法的优化性能。     

基于改进流形距离和人工蜂群的二阶段聚类算法

以改进的流形距离为相似度测度, 结合人工蜂群算法, 提出一种二阶段聚类算法. 首先根据局部密度、最大最小距离和近邻选择对数据集初步归类并得到簇代表点; 然后将聚类归属为优化问题, 通过改进的蜂群算法对簇代表点及没归类的样本点较快地搜索到最优聚类中心, 同时根据流形距离的全局一致性特征, 对样本进行精确的类别划分; 最后将两阶段算法综合归类. 实验结果表明, 所提出的算法可以获得良好的聚类效果.

     

基于蜂群K-means聚类模型的协同过滤推荐算法

针对目前协同过滤推荐算法的推荐质量和推荐效率低的问题,提出了一种基于改进蜂群K-means聚类模型的协同过滤推荐算法。首先,根据用户属性信息,采用改进蜂群K-means算法对用户进行聚类,建立用户聚类模型;然后,计算目标用户与用户聚类模型中各聚类中心的距离,其中距离最近的类为目标用户的检索空间;最后,从检索空间中依据用户-项目评分矩阵通过相似度计算搜索目标用户的最近邻居,由最近邻居的信息产生推荐列表。实验结果表明,该算法降低了平均绝对误差值,缩短了运行时间,提高了推荐质量和推荐效率。     

Linkage artificial bee colony for solving linkage problems

Nature-inspired meta-heuristics have gained popularity for the solution of many real world complex problems, and the artificial bee colony algorithm is one of the most powerful optimisation methods among the meta-heuristics. However, a major drawback prevents the artificial bee colony algorithm from accurately and efficiently finding final solutions for complex problems, whose variables interact with each other. We propose a novel optimization method based on the artificial bee colony algorithm and statistics. The proposed optimization method is evaluated for Pott models and optimization linkage functions, and the proposed method is verified to outperform traditional artificial bee colony and other meta-heuristics for those cases.     

基于向量整体扰动的快速收敛人工蜂群算法

针对标准人工蜂群算法收敛速度慢和易陷入早熟收敛等问题,提出一种快速收敛人工蜂群算法。首先借助反向学习理论初始化种群来提高初始解的分布质量,并在雇佣蜂和跟随蜂阶段引入向量整体扰动搜索方程加快局部搜索;然后为了跳出局部最优,采用一种随机更新搜索策略来增加蜂群多样性以平衡全局探索和局部利用能力;最后通过八个标准测试函数的仿真实验,发现所提出的算法与几个改进的人工蜂群算法相比,具有更快的收敛速度且获得了更高的求解精度,验证了算法的优越性。     

基于混合人工蜂群算法的并行测试任务优化研究

并行测试技术可以同时进行多个任务的测试,提高资源利用率,节约测试成本;并行测试调度问题是一种复杂的组合优化问题,是并行测试技术的核心要素;并行测试系统作为并行测试技术的载体,自身的性能和求解效率尤其重要;对并行测试完成时间极限定理进行了研究,建立了并行测试任务调度的数学模型,分析了传统元启发式算法求解并行测试问题的不足,提出了基于动态规划的递归搜索技术和人工蜂群算法相结合的混合人工蜂群算法,并采用整数规划精确算法和遗传算法对混合人工蜂群算法进行验证;得出结论采用混合人工蜂群算法进行并行测试任务的调度节约了接近50%的时间,降低了约20%的硬件资源占用,提高了测试效率,可以满足工程实际的应用。     

BMNABC: Binary Multi-Neighborhood Artificial Bee Colony for High-Dimensional Discrete Optimization Problems

Abstract

Many meta-heuristic algorithms have been proposed to solve continuous optimization problems. Hence, researchers have applied various techniques to change these algorithms for discrete search spaces. Artificial bee colony (ABC) algorithm is one of the well-known algorithms for real search spaces. ABC has a good ability in exploration but it is weak in exploitation. Several binary versions of ABC have been proposed so far. Since the methods are based on the standard ABC, they have the disadvantage of ABC. In this article, a new binary ABC called binary multi-neighborhood ABC (BMNABC) has been introduced to enhance the exploration and exploitation abilities in the phases of ABC. BMNABC applies the near and far neighborhood information with a new probability function in the first and second phases. A more conscious search than the standard ABC is done in the third phase for those solutions which have been not improved in the previous phases. The performance of algorithm has been evaluated by low- and high-dimensional functions and the 0-1 multidimensional knapsack problems. The proposed method has been compared with state-of-the-art algorithms. The results showed that BMNABC had a better performance in terms of solution accuracy and convergence speed.     

基于改进人工蜂群的模糊C-均值聚类算法

模糊C-均值聚类算法在数据挖掘领域有着广泛的使用背景,而对初始点的敏感和较差的搜索能力,限制了算法的进一步推广应用。人工蜂群算法具有对初始点不敏感、适应能力强和搜索能力强等优点,并且针对人工蜂群算法对单峰问题收敛速度慢、多峰问题容易陷入局部最优等问题,通过引入差分进化算法中变异和交叉思想,改善蜂群算法的收敛速度,平衡局部搜索和全局搜索能力。然后将改进的人工蜂群算法和模糊C-均值聚类算法结合得到基于改进人工蜂群的模糊C-均值聚类算法,并在多个国际标准数据集上进行验证,实验结果表明此算法在多个衡量指标上取得了明显的改进。     

ABC-based manufacturing scheduling for unrelated parallel machines with machine-dependent and job sequence-dependent setup times

To date, the topic of unrelated parallel machine scheduling problems with machine-dependent and job sequence-dependent setup times has received relatively little research attention. In this study, a hybrid artificial bee colony (HABC) algorithm is presented to solve this problem with the objective of minimizing the makespan. The performance of the proposed HABC algorithm was evaluated by comparing its solutions to state-of-the-art metaheuristic algorithms and a high performing artificial bee colony (ABC)-based algorithm. Extensive computational results indicate that the proposed HABC algorithm significantly outperforms these best-so-far algorithms. Since the problem addressed in this study is a core topic for numerous industrial applications, this article may help to reduce the gap between theoretical progress and industrial practice.