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2021 11th International Conference on Intelligent Control and Information Processing (ICICIP)最新文献

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Event-triggered Control for Zero-sum Games Based on Critic-identifier Architecture with Particle Swarm Optimization 基于临界标识体系和粒子群优化的零和博弈事件触发控制
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642185
Weichen Luo, Mingming Liang, Derong Liu, Bo Zhao
In this paper, an event-triggered control (ETC) scheme for zero-sum game problems is proposed. To solve the Hamilton-Jacobi-Isaacs equation of the unknown nonlinear system, the adaptive dynamic programming method with critic-identifier architecture is utilized. In order to train the neural networks (NN) more efficiently and avoid manually selecting the corresponding initial weights, the particle swarm optimization is employed. In addition, the actuator is updated aperiodically under the event-triggered framework, thus, reducing the computational burden and saving communication resources to some extend. A novel triggering rule, which can guarantee the closed-loop system to be uniformly ultimately bounded, is developed through the Lyapunov method. Finally, the effectiveness of the proposed ETC scheme is demonstrated via a simulation study.
本文提出了一种零和博弈问题的事件触发控制(ETC)方案。为了求解未知非线性系统的Hamilton-Jacobi-Isaacs方程,采用临界标识体系的自适应动态规划方法。为了提高神经网络的训练效率,避免人工选择相应的初始权值,采用了粒子群算法。此外,执行器在事件触发框架下不定期更新,从而在一定程度上减少了计算负担,节约了通信资源。利用李雅普诺夫方法,提出了一种保证闭环系统最终一致有界的触发规则。最后,通过仿真研究验证了ETC方案的有效性。
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引用次数: 0
UAV-Aided Secure Communication With Deployment Optimization and Cooperative Jamming 基于部署优化和协同干扰的无人机辅助安全通信
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642178
Hongbing Li, Juan Wu, L. Luo, Jiang Xiong
This paper investigates the jointly transmit power and unmanned aerial vehicle (UAV)/jammer deployment optimization problem for UAV enabled jammer-assisted secure communication systems, where a jammer is exploited to assist transmitting data from a source node to a legitimate destination node in the presence of multiple eavesdroppers. To increase the secrecy energy efficiency, which is defined as the achievable secrecy rate per energy consumption unit, we formulate a secrecy energy efficiency maximization problem by jointly optimizing the transmit power and UAV/jammer deployment. The resulting optimization problem is shown to be a non-convex and fractional optimization problem, which is challenging to solve. As such, we decompose the original problem into two sub-problems, and then, an efficient iterative algorithm is proposed by leveraging the extensive search method and Dinkelbach method in combination with successive convex approximation (SCA) techniques. Numerical simulation results show that the proposed scheme significantly improves the secrecy energy efficiency of the system.
本文研究了无人机干扰机辅助安全通信系统的联合传输功率和无人机/干扰机部署优化问题,该系统利用干扰机在存在多个窃听器的情况下协助将数据从源节点传输到合法目的节点。为了提高保密能源效率,将其定义为每能耗单位可实现的保密率,通过联合优化发射功率和无人机/干扰机部署,提出了保密能源效率最大化问题。结果表明,该优化问题是一个具有挑战性的非凸分数优化问题。因此,我们将原问题分解为两个子问题,然后利用广泛搜索方法和Dinkelbach方法结合逐次凸逼近(SCA)技术提出了一种高效的迭代算法。数值仿真结果表明,该方案显著提高了系统的保密能量效率。
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引用次数: 0
Index Tracking Based on Dynamic Time Warping and Constrained k-medoids Clustering 基于动态时间翘曲和约束k-介质聚类的索引跟踪
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642192
Ran Zhang, Hongzong Li, Jun Wang
Index tracking is a passive investment strategy by replicating a financial market index using its constituents. In this paper, index tracking is addressed based on $k-$medoids clustering. $k-$medoids clustering is formulated as a valuation-constrained $k-$median problem to cluster index constituents. The dissimilarity coefficients among stocks are measured by using dynamic time warping. Experimental results of index tracking on four major indices are elaborated to demonstrate that the tracking performance of the proposed method with dynamic time warping is superior to that with Pearson correlation coefficients.
指数跟踪是一种被动的投资策略,通过使用其组成部分复制金融市场指数。本文研究了基于$k-$ medioids聚类的索引跟踪问题。$k-$medoids聚类是一个估值受限的$k-$中位数问题,用于聚类指数成分。采用动态时间规整的方法测量了股票间的不相似系数。对4个主要指标进行了跟踪实验,结果表明,采用动态时间规整方法的跟踪性能优于采用Pearson相关系数方法。
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引用次数: 0
Pre-Optimization of High Dimensional Extreme Learning Machine with Cooperative Coevolution 基于协同进化的高维极限学习机预优化
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642187
J. Li, Chen Peng, Yuyan Wang, Yumin Yin, Bolin Liao
Extreme Learning Machine (ELM) is a special type of single hidden layer feedforward neural network, which uses pseudo-inverse to compute weights of the output layer, and is often faster than the gradient-based methods. However, due to the random initialization of input weights and biases, the performance of this algorithm is not always stable, and is less effective in large-scale applications. Therefore, in this paper, based on an effective large-scale optimization algorithm, i.e., cooperative coevolutionary particle swarm optimization (CCPSO), an improved hybrid ELM learning algorithm, named CCPSO-ELM, is proposed, where the input weights and the hidden layer biases are optimized using CCPSO. Compared with the traditional ELM algorithm, as well as ELM optimized by traditional PSO, the CCPSO-ELM is more likely to avoid local optima, has smaller optimization errors, and is more robust against noises. The results are verified by experiments on two different types of problems, i.e., large-scale multivariate function approximation and pattern classification.
极限学习机(Extreme Learning Machine, ELM)是一种特殊类型的单隐层前馈神经网络,它使用伪逆来计算输出层的权值,通常比基于梯度的方法更快。然而,由于输入权重和偏差的随机初始化,该算法的性能并不总是稳定的,并且在大规模应用中效果较差。因此,本文在有效的大规模优化算法——协同进化粒子群优化算法(cooperative coevolutionary particle swarm optimization, CCPSO)的基础上,提出了一种改进的混合ELM学习算法CCPSO-ELM,利用CCPSO对输入权值和隐层偏差进行优化。与传统的ELM算法以及传统粒子群优化的ELM算法相比,CCPSO-ELM更容易避免局部最优,优化误差更小,对噪声的鲁棒性更强。通过两种不同类型的问题(即大规模多元函数逼近和模式分类)的实验验证了结果。
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引用次数: 1
Positioning Control of Piezoelectric Stick-slip Actuators Based on Single Neuron Adaptive PID Algorithm 基于单神经元自适应PID算法的压电粘滑作动器定位控制
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642174
Yan Li, Yi Dong, Piao Fan
Aiming at the problem of large positioning control error caused by the change of starting and ending position of piezoelectric stick-slip actuators, an adaptive PID full closed loop control method based on single neuron is proposed in this paper. Firstly, the dynamic model of the spring damping system is adopted, and the LuGre friction model is introduced to represent the stick-slip relationship between the drive block and the friction rod. Then, the adaptive PID full closed-loop control scheme based on single neuron and the principles of traditional PID algorithm and variable speed integral PID control algorithm are analyzed. The proposed control method is simulated and compared with the other two methods by MATLAB software. Finally, the effectiveness of the proposed method is verified by an experimental platform. The experimental results show that the maximum positioning errors of the proposed control method and the other two methods are 180 nm, 270 nm and 280 nm, respectively, when the desired position is 1 mm in low-frequency motion. Under the same experimental conditions, the proposed control scheme shows high control accuracy when the starting and ending position changes.
针对压电式粘滑作动器起止位置变化导致定位控制误差大的问题,提出了一种基于单神经元的自适应PID全闭环控制方法。首先,采用弹簧阻尼系统的动力学模型,并引入LuGre摩擦模型来表示驱动块与摩擦杆之间的粘滑关系。然后,分析了基于单神经元的自适应PID全闭环控制方案以及传统PID算法和变速积分PID控制算法的原理。利用MATLAB软件对所提出的控制方法进行了仿真,并与其他两种控制方法进行了比较。最后,通过实验平台验证了该方法的有效性。实验结果表明,在低频运动中,当期望位置为1 mm时,所提控制方法和其他两种方法的最大定位误差分别为180 nm、270 nm和280 nm。在相同的实验条件下,所提出的控制方案在开始和结束位置变化时具有较高的控制精度。
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引用次数: 0
Time-Varying Polar Decomposition by Continuous-Time Model and Discrete-Time Algorithm of Zeroing Neural Network Using Zhang Time Discretization (ZTD) 连续时间模型时变极分解和张时间离散化(ZTD)归零神经网络的离散时间算法
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642222
Zanyu Tang, Liangjie Ming, Yunong Zhang, Runhao Shi
Time-varying polar decomposition becomes important and has many applications in potential fields. This paper first proposes a continuous-time model and a discrete-time algorithm of zeroing neural network (ZNN) for time-varying polar decomposition. The continuous-time polar decomposition (CTPD) model is obtained by using ZNN method. Besides, the discrete-time polar decomposition (DTPD) algorithm of ZNN is obtained by utilizing a 7-instant Zhang time discretization (ZTD) formula for being realized in digital computer readily. Finally, this paper investigates two numerical examples with different dimensions. The corresponding numerical results substantiate the relative effectiveness of the proposed continuous-time model and discrete-time algorithm of ZNN for time-varying polar decomposition.
时变极性分解在势场中具有重要的应用价值。本文首先提出了用于时变极分解的归零神经网络的连续时间模型和离散时间算法。采用ZNN方法建立了连续时间极坐标分解模型。此外,利用7瞬时张时间离散化(ZTD)公式,得到了ZNN的离散时间极分解(DTPD)算法,该算法易于在数字计算机上实现。最后,研究了两个不同维数的数值算例。相应的数值结果证实了ZNN连续时间模型和离散时间算法在时变极化分解中的相对有效性。
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引用次数: 0
Model Predictive Direct Power Control for PWM Rectifiers Based on Online Parameter Identification 基于在线参数辨识的PWM整流器模型预测直接功率控制
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642203
Yongzhi Wang, Dan Wang, Zhouhua Peng
Model predictive control guarantees superior control performance with accurate model parameters. However, the prediction accuracy may be deteriorated due to the parameter uncertainties and parameter mismatches. In this paper, an improved model predictive direct power control (MPDPC) based on online parameter identification is proposed for pulse width modulation (PWM) rectifiers with fully unknown parameters. In this paper, an adaptive Parameter estimation update law is proposed to identify the unknown parameters. Two-stage filters are applied to ensure the convergence of estimation errors. In the control part, an MPDPC based on the identified parameters is proposed to realize the desired power control objectives. Simulation results under various parameter conditions are simulated to show the effectiveness of the proposed method.
模型预测控制以准确的模型参数保证了优越的控制性能。但是,由于参数的不确定性和参数的不匹配,可能会降低预测的精度。针对具有完全未知参数的脉宽调制整流器,提出了一种基于在线参数辨识的改进模型预测直接功率控制(MPDPC)。本文提出了一种自适应参数估计更新律来识别未知参数。采用两级滤波器保证了估计误差的收敛性。在控制部分,提出了一种基于识别参数的MPDPC来实现预期的功率控制目标。仿真结果显示了该方法在不同参数条件下的有效性。
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引用次数: 2
Discrete-Time ZND Algorithms for Time-Dependent LQ Decomposition Applied to Sound Source Localization 时变LQ分解的离散ZND算法在声源定位中的应用
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642202
Jinjin Guo, Yunong Zhang
To solve discrete-time LQ decomposition (DTLQD) problem, a 5-step Adams-Bashforth-type (5SAB-type) discrete-time zeroing neural dynamics (DTZND) algorithm is proposed by combining 5-step Adams-Bashforth (AB) method with continuous-time zeroing neural dynamics (CTZND) model. For comparison, general 4-step and 3-step Zhang et al. discretization (ZeaD) formulas are also presented and used to discretize the CTZND model. The corresponding 4-step ZeaD-type (4SZeaDtype) and 3-step ZeaD-type (3SZeaD-type) DTZND algorithms are thus developed. Theoretical analyses and results show that the proposed 5SAB-type DTZND algorithm has higher computational precision than the 4SZeaD-type and 3SZeaD-type DTZND algorithms. Two numerical examples further validate the availability of the three DTZND algorithms and the superiority of the proposed 5SAB-type DTZND algorithm. Moreover, the proposed DTZND algorithms are applied to the sound source localization based on the time difference of arrival (TDOA) technique.
为了解决离散时间LQ分解(DTLQD)问题,将5步Adams-Bashforth (AB)方法与连续时间归零神经动力学(CTZND)模型相结合,提出了一种5步Adams-Bashforth-type (5ab -type)离散时间归零神经动力学(DTZND)算法。为了比较,Zhang等人还提出了一般的4步和3步离散化(ZeaD)公式,并将其用于CTZND模型的离散化。由此提出了相应的4步ZeaD-type (4SZeaDtype)和3步ZeaD-type (3SZeaD-type) DTZND算法。理论分析和结果表明,5ab型DTZND算法比4szead型和3szead型DTZND算法具有更高的计算精度。两个算例进一步验证了三种DTZND算法的有效性以及所提出的5ab型DTZND算法的优越性。并将所提出的DTZND算法应用于基于到达时差(TDOA)技术的声源定位。
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引用次数: 0
Adaptive Sliding Mode Synchronization of Different Hyperjerk Chaotic Systems Using RBF Neural Network 基于RBF神经网络的超跳混沌系统自适应滑模同步
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642190
Baojie Zhang
In this paper, we consider the synchronization of hyperjerk chaotic systems with different structures. Besides the order, the systems are unknown with external disturbances. We use sliding mode control method to deal with the external disturbances. Radial basis function (RBF) neural network is proposed to approximate the unknown system. Based on RBF neural network, adaptive sliding mode synchronization of different hyperjerk chaotic systems are introduced. Numerical results show the effectiveness of the synchronization scheme.
研究了具有不同结构的超跳混沌系统的同步问题。除了阶数外,系统在外界干扰下是未知的。我们采用滑模控制方法来处理外部干扰。提出径向基函数(RBF)神经网络来逼近未知系统。基于RBF神经网络,介绍了不同类型超跳混沌系统的自适应滑模同步。数值结果表明了该同步方案的有效性。
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引用次数: 0
A Competition Model for Modeling and Describing Matthew Effect in Computational Social Systems 计算社会系统中马太效应的竞争模型
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642207
Jinyuan Zhang, Lin Wei, Meng Liu, Yubo Deng
In this article, a competition model is used to analyze and describe the Matthew effect in social systems. The competition between n participants results in only k winners and the others are reduced to losers. Using the market competition as an example, the model describes the variety of each opinion and the influence of the market environment on it. The model is analyzed through the characteristics of competitive activities and related social phenomena. It was used to simulate changes in competition between dynamic opinions. Eventually, a certain number of opinions win the competition and reach monopoly status. Simulation results demonstrate the efficacy and feasibility of the social competition model.
本文采用一个竞争模型来分析和描述社会制度中的马太效应。n个参与者之间的竞争只会产生k个赢家,其他人都是输家。该模型以市场竞争为例,描述了各种意见的多样性以及市场环境对其的影响。该模型通过竞争活动的特点和相关社会现象进行分析。它被用来模拟动态意见之间竞争的变化。最终,一定数量的意见在竞争中胜出,达到垄断地位。仿真结果验证了该社会竞争模型的有效性和可行性。
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引用次数: 2
期刊
2021 11th International Conference on Intelligent Control and Information Processing (ICICIP)
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