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A novel self-adaptive quantum genetic algorithm 一种新的自适应量子遗传算法
Lin-xiu Sha, Yuyao He
The current quantum evolution algorithms have slow convergence rate and poor robustness. In order to overcome the two shortages, a novel self-adaptive quantum genetic algorithm is proposed. Firstly, the new algorithm adopts an encoding method which is based on the Bloch spherical coordinates. Secondly, in the process of searching the optimal solution, a self-adaptive factor is introduced to reflect the relative change rates which are relative to the difference of the best individual's objective fitness between the parent generation and the child generation. The convergence rate and direction of the algorithm can be improved by adjusting the factor. The rules of updating the rotation angle and are constructed. Finally, using hadamard gate of the quantum in the mutation strategy, it can enhance the diversity of population. The simulation results of the optimizing problem of the multidimensional complex functions show that the new algorithm has not only avoided effectively the premature and improved the convergence rate, but also boosted strikingly efficiency and stability robustness of the algorithm.
现有的量子进化算法存在收敛速度慢、鲁棒性差的问题。为了克服这两个不足,提出了一种新的自适应量子遗传算法。首先,该算法采用了基于布洛赫球坐标的编码方法。其次,在寻找最优解的过程中,引入一个自适应因子来反映与最优个体在父代和子代之间的客观适应度差异有关的相对变化率。通过调整因子可以提高算法的收敛速度和收敛方向。构造了旋转角度和的更新规则。最后,在突变策略中使用量子的哈达玛门,可以增强种群的多样性。多维复杂函数优化问题的仿真结果表明,新算法不仅有效地避免了早熟问题,提高了收敛速度,而且显著提高了算法的效率和稳定性鲁棒性。
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引用次数: 2
Single neuron adaptive controller for doubly-fed motor drive system 双馈电机驱动系统的单神经元自适应控制器
Zongbin Ye, Wei Jing, Chen Xia
A nonlinear controller based on single neuron adaptive control has been developed for the doubly-fed induction motor, which implement the self optimizing control for the parameters of speed loop and gain an excellent torque tracking control. The strategy and stability of the designed controller are deduced and verified by experiments on a platform. The results of the experiment indicate that the controller can realize self optimizing control for the parameters of speed loop and obtain fine dynamic and static performance.
针对双馈异步电动机,设计了一种基于单神经元自适应控制的非线性控制器,实现了转速环参数的自优化控制,获得了良好的转矩跟踪控制效果。推导了所设计控制器的控制策略和稳定性,并在平台上进行了实验验证。实验结果表明,该控制器能够实现对速度环参数的自优化控制,并获得良好的动、静态性能。
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引用次数: 0
A bacterial foraging strategy-based recurrent neural network for identifying and controlling nonlinear systems 基于细菌觅食策略的递归神经网络辨识与控制非线性系统
H. Ge, Liang Sun
Identification and control of nonlinear dynamic system plays an important role in many applications. In this paper, a novel bacterial foraging strategy-based Elman neural network is proposed for identifying and controlling nonlinear systems. We first present a learning algorithm for dynamic recurrent networks based on a bacterial foraging strategy oriented by quorum sensing and communication. The proposed algorithm computes concurrently both the weights, initial inputs of the context units and self-feedback coefficient of the Elman network. Thereafter, we introduce and discuss a novel control method based on the proposed algorithm. More specifically, a dynamic identifier is constructed to perform speed identification and a controller is designed to perform speed control for Ultrasonic Motors (USM). Numerical experiments show that the identifier and controller can both achieve higher convergence precision and speed. Besides, a preliminary examination on a random perturbation also shows the robust characteristics of the proposed models.
非线性动态系统的辨识与控制在许多应用中起着重要的作用。本文提出了一种基于Elman神经网络的细菌觅食策略,用于识别和控制非线性系统。我们首先提出了一种基于群体感应和通信导向的细菌觅食策略的动态循环网络学习算法。该算法同时计算Elman网络的权重、上下文单元的初始输入和自反馈系数。在此基础上,介绍并讨论了一种新的控制方法。更具体地说,构建了一个动态标识符来执行速度识别,并设计了一个控制器来执行超声电机(USM)的速度控制。数值实验表明,该辨识器和控制器均能达到较高的收敛精度和收敛速度。此外,对随机扰动的初步检验也表明了所提模型的鲁棒性。
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引用次数: 0
Fault diagnosis based on wavelet packet energy and PNN analysis method for rolling bearing 基于小波包能量和PNN分析的滚动轴承故障诊断方法
Jingyi Zhang, Lan Wang, M. Zhu, Yuan Zhu, Qing Yang
A combined approach based on wavelet packet energy and probabilistic neural network (WPE-PNN) is presented to diagnose faults in the rolling bearing vibration signal research. Firstly wavelet packet is used to decompose rolling bearing vibration signals into three-layer, and extract the energy characteristics. Then PNN is proposed to diagnose faults. Finally, remote fault diagnosis is realized by virtual instrument technology. The proposed method can provide an accepted degree of accuracy in fault classification under different fault conditions and can be operated remotely from another station connected to the server via the World Wide Web.
提出了一种基于小波包能量和概率神经网络(WPE-PNN)的滚动轴承振动信号故障诊断方法。首先利用小波包对滚动轴承振动信号进行三层分解,提取振动信号的能量特征;然后提出PNN进行故障诊断。最后,利用虚拟仪器技术实现远程故障诊断。该方法可以在不同的故障条件下提供可接受的故障分类精度,并且可以通过万维网从连接到服务器的另一个站点远程操作。
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引用次数: 4
Research on the classifier with the tree frame based on multiple attractor cellular automaton 基于多吸引子元胞自动机的树形框架分类器研究
Min Fang, WenKe Niu, Xiaosong Zhang
The partition of a pattern space as the view of a cell space is a uniform partition, it is difficult to adapt to the needs of spatial non-uniform partition. In this paper, a cellular automaton classifier with a tree structure is constructed by combing with the CART algorithm. The construction method of the characteristic matrix of the multiple attractor cellular automata is studied based on the particle swarm optimization method, and this method can build the nodes of the multiple attractor cellular automata. This kind of classifier can solve the non-uniform partition problem and obtain a good classification performance while using a pseudo-exhaustive field with less bits. The experiment results show that our algorithm is more accurate than those obtained through the multiple attractor cellular automata.
模式空间的划分作为单元空间的视图是统一的划分,很难适应空间非统一划分的需要。本文结合CART算法构造了一个树形结构的元胞自动机分类器。基于粒子群优化方法研究了多吸引子元胞自动机特征矩阵的构造方法,该方法可以构造多吸引子元胞自动机的节点。该分类器在使用较少比特的伪穷穷域的情况下,解决了非均匀划分问题,获得了较好的分类性能。实验结果表明,该算法比采用多吸引子元胞自动机的算法精度更高。
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引用次数: 2
A Negative Selection Algorithm Integrated with Immune Network Theory 一种结合免疫网络理论的负选择算法
Jianhua Guo, Haidong Yang
Negative Selection Algorithm (NSA) is an artificial immune system for anomaly detection. Three weaknesses in NSA are the exponential cost of generating detectors, the difficulty to set the matching threshold, and the deviation between the real and the expected miss detection rate. To improve these weaknesses, a new Negative Selection Algorithm Integrated with Immune Network theory (NSA-IN) was proposed. A matching rule with variable threshold was defined, and clonal selection was adopted to rapidly mature the detectors with low similarity to self bodies and self-adaptively get the matching threshold of detectors, and immune network theory was adopted to optimize the distribution of mature detectors and improve detection rate. Experiments show that, NSA-IN can automatically set the matching threshold, and is the linear cost of generating detectors, and reduces the deviation between the real and the expected miss detection rate. In RFID anomaly detection case, the average miss detection rate of NSA-IN is 0.098, and is lower than that of NSA 0.234.
负选择算法(NSA)是一种用于异常检测的人工免疫系统。NSA的三个缺点是生成检测器的指数成本、设置匹配阈值的难度以及真实和期望的缺失检测率之间的偏差。针对这些不足,提出了一种新的结合免疫网络理论的负选择算法。定义了可变阈值的匹配规则,采用克隆选择快速成熟与自身相似度较低的检测器并自适应获得检测器的匹配阈值,采用免疫网络理论优化成熟检测器的分布,提高检测率。实验表明,NSA-IN可以自动设置匹配阈值,是生成检测器的线性代价,减小了真实和期望的缺失检测率之间的偏差。在RFID异常检测案例中,NSA- In的平均漏检率为0.098,低于NSA的0.234。
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引用次数: 1
The recognition of train wheel tread damages based on PSO-RBFNN algorithm 基于PSO-RBFNN算法的列车车轮踏面损伤识别
Yong Zhao, Hong Ye, Zheng-sheng Kang, Song-shan Shi, Lin Zhou
In order to the recognition of the train wheel tread damages, the pattern recognition method of the train wheel tread damages based on PSO-RBFNN was developed. The algorithm uses PSO-RBFNN algorithm to optimize center and spread of RBFNN, the connection weight value is sovled by least squares method. Compared with the traditional RBFNN,BP and GA-RBFNN, the experiment results show that the recognition rate of testing samples is higher than the traditional RBFNN, BP and GA-RBFNN, the evolutional generations of PSO-RBFNN algorithm were less than RBFNN, BP and GA-RBFNN.
为了识别列车车轮踏面损伤,提出了基于PSO-RBFNN的列车车轮踏面损伤模式识别方法。该算法采用PSO-RBFNN算法对RBFNN的中心和扩散进行优化,采用最小二乘法求解连接权值。实验结果表明,与传统RBFNN、BP和GA-RBFNN相比,PSO-RBFNN对测试样本的识别率高于传统RBFNN、BP和GA-RBFNN, PSO-RBFNN算法的进化代数少于RBFNN、BP和GA-RBFNN。
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引用次数: 3
The research of multi-core parallel technology 多核并行技术的研究
Yang Pan, Jianlin Qiu, Li Chen, Xiang Gu, Jianping Chen, Yanyun Chen
In order to take full advantage of multi-core resources to enhance the parallel performance, we study the architecture of multi-core processor and point out that the heterogeneous multi-core processor is the mainstream of development. With Amdahl's law, only by developing a new parallel programming model can solve the contradiction between traditional programming model and multi-core parallel structure.
为了充分利用多核资源提高并行性能,研究了多核处理器的体系结构,指出异构多核处理器是发展的主流。根据Amdahl定律,只有开发一种新的并行编程模型,才能解决传统编程模型与多核并行结构之间的矛盾。
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引用次数: 0
A kind of method for direction of arrival estimation based on blind source separation demixing matrix 一种基于盲源分离解混矩阵的到达方向估计方法
C. Kang, Wentao Fan, Xin-hua Zhang, Jun Li
Direction of arrival(DOA) estimation is the base of the underwater target orientation, tracking. Based on the characteristic of the array manifold can be estimated by complex blind source separation using the singular value decomposition, a new kind of model and method for DOA estimation is proposed using the directivity patterns of the blind source separation demixing matrix. Its efficiency and stability was tested by simulation data and recorded data in real sea. Results show that it can complete the real-time estimation of the target direction. And it is superior to the minimum variance distortionless response(MVDR) method and the method proposed in relevant literatures, it can obviously improves the detection capability of the sonar system for the faint target signal obviously.
到达方向(DOA)估计是水下目标定向、跟踪的基础。基于复杂盲源分离解混矩阵奇异值分解可估计阵列流形的特点,提出了一种利用盲源分离解混矩阵的指向性模式估计阵列流形DOA的新模型和方法。仿真数据和实际海上实测数据验证了该方法的有效性和稳定性。结果表明,该方法能够完成对目标方向的实时估计。该方法优于最小方差无失真响应(MVDR)方法和相关文献提出的方法,能明显提高声呐系统对微弱目标信号的检测能力。
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引用次数: 2
A research based on K-means clustering and Artificial Fish-Swarm Algorithm for the Vehicle Routing Optimization 基于k均值聚类和人工鱼群算法的车辆路径优化研究
De-gang Ji, Dong-mei Huang
Vehicle Routing Problem(VRP) is an important problem in logistic system. Because of its NP-hard property, it is difficult to get the optimal solution when the constrains are more. Aiming at the problem of logistics distribution vehicle routing optimization, this paper provide a composite algorithm based on the K-means clustering and the Artificial Fish-Swarm Algorithm for the vehicle routing optimization(KMAFA). The results indicate that the algorithm can reduce the input of the algorithm and improve the converging speed. The computational result shows that the results of composite algorithm for VRP are competitive.
车辆路径问题是物流系统中的一个重要问题。由于其NP-hard性质,当约束较多时,很难得到最优解。针对物流配送车辆路径优化问题,提出了一种基于k均值聚类和人工鱼群算法的车辆路径优化复合算法。结果表明,该算法可以减少算法的输入,提高收敛速度。计算结果表明,复合算法对VRP的求解结果具有一定的竞争力。
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引用次数: 4
期刊
International Conference on Computing, Networking, and Communications : [proceedings]. International Conference on Computing, Networking and Communications
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