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基于多种群的自适应免疫进化计算 总被引:3,自引:0,他引:3
将免疫思想同思维进化计算相结合,提出一种新的基于多种群的自适应免疫进化算法(IABM),算法定义了选择、记忆、克隆、超变异、抑制5种基本算子.试验结果表明该算法具有高效的收敛速度,并能收敛到全局最优点.与多种群遗传算法和思维进化计算相比,IABM收敛速度更快,收敛率更高. 相似文献
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余振华 《计算机工程与应用》2010,46(1):221-223
物流配送车辆路径优化问题是在物流系统中受到普遍关注的问题,也是一个NP-Hard问题。针对物流配送车辆路径问题,提出并实现了一种自适应伪并行免疫遗传算法。利用多个子种群同时进化及小生境技术,给出了一种小生境伪并行协同进化策略,给出了编解码方式及免疫克隆、提取疫苗、接种疫苗、免疫选择等免疫算子以及选择、交叉、变异等遗传算子的具体设计,进化过程中克隆规模可依据抗体-抗原亲合度、抗体-抗体亲合力自适应调整,采取了最优保存策略从而保证了算法以概率1收敛。实例验证了该算法的可行性,有效性。通过仿真验证,该算法运算速度快、结果精度高,对物流配送车辆路径优化问题研究具有一定的参考价值。 相似文献
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针对传统的单种群粒子群优化算法易陷入局部最优、搜索精度低的问题,提出一种异构多子群粒子群算法。算法由自适应子群、精英子群和若干普通子群构成,精英子群由普通子群和自适应子群中的优秀个体组成,每个子种群采用不同策略进行进化,根据种群的早熟收敛程度和粒子的适应度值自适应地调整惯性权重,自适应子群根据普通子群的适应度值和速度自适应调整飞行方向,采用免疫克隆选择算子对精英子群进行精细搜索,普通子群、自适应子群与精英子群之间通过迁移操作实现信息的充分交流。针对典型的Benchmark 函数优化问题测试,仿真结果表明所提算法能较好地保持粒子多样性,收敛精度高且全局搜索能力强,具有良好优化性能。 相似文献
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针对免疫算法在全局优化过程中多样性不足的问题,将差异进化引入克隆变异操作中,提出了一个新的改进的克隆选择算法——基于差异进化的克隆选择算法(DECSA),算法将差异进化和克隆超变异相结合,促进了抗体与抗体之间的信息融合,使得子代抗体继承父代抗体的信息的同时,携带着不同父代个体信息,丰富了抗体种群的多样性,实现了在同一父代抗体周围的多个方向同时进行全局和局部搜索。对13个标准测试函数的测试结果及与已有的算法的比较表明,该算法表现出较好的局部搜索和全局搜索能力。 相似文献
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基于自适应免疫进化算法的逻辑电路设计* 总被引:1,自引:1,他引:0
针对现有进化算法在进行逻辑电路设计时存在的进化缓慢和容易陷入局部解等问题,提出一种自适应免疫进化算法(adaptive immune evolutionary algorithm,AIEA)。该算法引入了免疫记忆机制和抗体差异调节算子,能够很好地保证个体的多样性,有利于跳出局部最优解;通过采用自适应交叉率和变异率,提高了算法的搜索能力和收敛速度。通过与多目标进化算法(MOEA)、简单免疫算法(SIA)的实验比较,证明了该自适应免疫进化算法的有效性。 相似文献
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为提高免疫进化算法的全局寻优能力并降低计算复杂度,提出了多方法协作免疫进化算法。对免疫进化算法进行了改进。考虑抗体个体差异性,将抗体种群划分为精英、普通和劣等子群,对其分别执行高斯变异、均匀变异和消亡更新等差别化操作,增强了算法全局搜索能力。模式搜索法的探测和模式移动策略由单步交替改为贪婪下降,加快了算法收敛速度。将模式搜索法作为局部搜索工具嵌入免疫进化流程,同时采用免疫进化信息指导模式搜索法的初始点和参数设置,实现多方法协作优化。采用经典测试函数和某星载电子设备布局优化问题对算法进行了测试,测试结果表明算法寻优能力和收敛速度优于免疫进化算法,计算复杂度有显著下降。 相似文献
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针对差分进化(DE)算法存在的早熟收敛与搜索停滞问题,提出了自适应合并与分裂的多种群差分进化算法。算法将种群划分为多个子种群,引入子种群优劣因子来评价种群的优劣性,实现种群间的自适应合并与分裂;对于种群中的各个个体,采取基于精英池学习的变异算子,结合优秀个体进行自适应学习调整,使算法达到全局搜索与局部搜索能力的平衡;在算法后期引入扰乱策略,保证算法快速收敛的同时有效地跳出局部极值点,提高算法寻优的精度。在30个标准测试函数的实验结果表明,改进算法能有效解决早熟和陷入局部最优的问题。 相似文献
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S. Shaw 《Journal of Computer Assisted Learning》1993,9(2):93-99
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained. 相似文献
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European Community policy and the market 总被引:1,自引:0,他引:1
C. Lloyd 《Journal of Computer Assisted Learning》1993,9(2):86-91
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven. 相似文献
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融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。 相似文献
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张涛 《计算机测量与控制》2015,23(1):86-89
为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值. 相似文献
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Wayne O’Brien Author Vitae 《Journal of Systems and Software》2008,81(11):1997-2013
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them. 相似文献
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This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives. 相似文献
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潘丽 《自动化与仪器仪表》2014,(7):80-82
自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。 相似文献
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Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what
is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic
sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and
its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of
an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify
robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can
or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest.
This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January
31–February 2, 2008 相似文献
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Jacob Palme 《Software》1979,9(9):741-747
The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users. 相似文献