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2022 14th International Conference on Advanced Computational Intelligence (ICACI)最新文献

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Generalized Nash Equilibrium Seeking Strategy for Nonsmooth Noncooperative Game with Equality Constraints 不等式约束下非光滑非合作对策的广义纳什均衡寻求策略
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837580
Xinrui Jiang, Zhaorui Xin, Sitian Qin, Jiqiang Feng, Guocheng Li
This article discusses the problem of Nash equilibrium seeking for noncooperative game with equality constraints. In the problem, each player desires to maximize its nonsmooth payoff function which depends on both its own strategy and the strategy of other players. Besides, the game-player is subjected to private local equality constraints. We use a l1 penalty function to deal with the equality constraints and a Nash equilibrium seeking strategy is designed on the basis of differential inclusions and subgradient methods. And we show that the strategy of player is exponentially convergent to the Nash equilibrium with Lyapunov methods. Finally, a numerical example is presented to illustrate the validity of our theoretical results.
讨论了具有相等约束的非合作对策的纳什均衡寻求问题。在这个问题中,每个参与者都希望最大化自己的非平滑收益函数,这取决于自己的策略和其他参与者的策略。此外,博弈参与者还受到局部私平等约束。我们使用l1惩罚函数来处理等式约束,并基于微分包含和次梯度方法设计了纳什均衡寻求策略。利用李雅普诺夫方法证明了参与人的策略是指数收敛于纳什均衡的。最后通过数值算例说明了理论结果的有效性。
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引用次数: 0
Finite-time Synchronization of Inertial Neural Networks via Periodically Intermittent Control 基于周期性间歇控制的惯性神经网络有限时间同步
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837654
Yaqian Hu, Leimin Wang, Xingxing Tan, Kan Zeng
In this paper, the finite-time synchronization (FTS) for inertial neural networks (INNs) is investigated based on periodically intermittent control. By utilizing the reduced order approach, INN system is transformed into two first-order systems. Then, proper periodically intermittent controllers are designed to obtain sufficient condition for FTS of INNs. An example is proposed to support the validity of the synchronization criterion.
研究了基于周期性间歇控制的惯性神经网络的有限时间同步问题。利用降阶方法,将INN系统转化为两个一阶系统。然后,设计了合适的周期间歇控制器,以获得惯性神经网络时域变换的充分条件。通过实例验证了同步准则的有效性。
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引用次数: 0
An Investigation on Vehicle Fuel Consumption Optimization Strategy Based on Scenario Information 基于场景信息的汽车油耗优化策略研究
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837537
X. Li, Mingxin Kang
The rapid development of vehicle-to-everything (V2X) and intelligent control technologies brings new opportunities and challenges to the traditional automotive control architecture. More driving information about traffic scenarios and ambient events such as the road slope, the traffic light timing is possible to be obtained via V2X system. And then, those traffic information will be extracted by individual vehicle’s controller and be further utilized to design the optimal control strategy. Fuel economy performance and time losses for waiting for the traffic red light are the two main concerns by most drivers. In order to obtain a satisfactory fuel economy performance and lower traveling time loss, this paper investigates an eco-driving problem for road vehicles when assuming the information of the traffic light ahead is prior known. The optimization problem by balancing the fuel consumption and time loss is designed and meanwhile the time phase of the traffic light is also considered. The optimization problem is firstly solved with the dynamic programming (DP) algorithm. Preliminary simulations have been implemented and the simulation results demonstrate the potential ability in improvement of the fuel economy performance. Moreover, an equivalent problem is formulated under the switching control system framework, to guarantee the hard constraint of the red light. The equivalent problem provides an interesting topic for the open discussion.
车联网(V2X)和智能控制技术的快速发展给传统的汽车控制体系结构带来了新的机遇和挑战。通过V2X系统可以获得更多关于交通场景和环境事件的驾驶信息,如道路坡度,红绿灯定时。然后,这些交通信息将被单独的车辆控制器提取,并进一步用于设计最优控制策略。燃油经济性和等待交通红灯的时间损失是大多数司机关心的两个主要问题。为了获得满意的燃油经济性和较低的行驶时间损失,本文研究了假设前方交通灯信息事先已知的道路车辆的生态驾驶问题。设计了平衡油耗和时间损失的优化问题,同时考虑了交通灯的时间相位。首先用动态规划(DP)算法求解优化问题。进行了初步的仿真,仿真结果表明了该方法在提高燃油经济性方面的潜在能力。并在切换控制系统框架下建立了等效问题,保证了红灯的硬约束。等效问题为公开讨论提供了一个有趣的话题。
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引用次数: 0
GoogLeNet-based Diabetic-retinopathy-detection GoogLeNet-based Diabetic-retinopathy-detection
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837677
Bojia Shi, Xiaoya Zhang, Zhuoyang Wang, Jiawei Song, Jiaxuan Han, Zaiye Zhang, Teoh Teik Toe
This paper is about a research in applying different neural networks for diabetic-retinopathy-detection. Respectively using basic CNNs, VGG16 and GoogLeNet trained on datasets from Aravind Eye Hospital in India including 8929 photos and validated on other 1114 photos. Experiment showed that GoogLeNet model could better identify diabetic retinopathy with a higher train accuracy around 97%, compared to the CNN model’s performance of 84% and VGG16’s 94%. Meanwhile, the test accuracy of GoogLeNet is 85%, relatively higher than other proposed models. The excellent performance of the GoogLeNet model shows its great potential and promises to be extended to replace ophthalmologists in the screening of patients in the future.
本文研究了不同神经网络在糖尿病视网膜病变检测中的应用。VGG16和GoogLeNet分别使用基本cnn对印度Aravind眼科医院8929张照片数据集进行训练,并对另外1114张照片进行验证。实验表明,GoogLeNet模型可以更好地识别糖尿病视网膜病变,训练准确率在97%左右,而CNN模型的准确率为84%,VGG16的准确率为94%。同时,GoogLeNet的测试准确率为85%,相对于其他提出的模型较高。GoogLeNet模型的优异表现显示了其巨大的潜力,并有望在未来扩展到取代眼科医生对患者的筛查。
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引用次数: 4
An Improved Jaya Optimization Algorithm with Hybrid Logistic-Sine-Cosine Chaotic Map 一种改进的logistic -正弦-余弦混合混沌映射Jaya优化算法
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837758
Weidong Lei, Zhan Zhang, Jiawei Zhu, Yishuai Lin, Jing Hou, Ying Sun
Jaya optimization algorithm is a simple but powerful intelligence optimization method which has several outstanding characteristics of both population-based algorithms and swarm intelligence-based algorithms. It has shown great potentials to solve various hard and complex optimization problems, but there still has much room to improve its performance, especially for solving high-dimensional and non-convex problems. Hence, this paper proposes an improved Jaya optimization algorithm with a novel hybrid logistic-sine-cosine chaotic map, which is named IJaya for short. The hybrid logisticsine-cosine chaotic map is applied to balance the exploration and the exploitation processes of Jaya optimization algorithm. Seven benchmark testing functions with different scale settings are used to evaluate the performance of our improved algorithm. Computational results indicate that our improved Jaya optimization algorithm outperforms greatly its original version on most testing functions with high-dimensions.
Jaya优化算法是一种简单但功能强大的智能优化方法,它具有基于群体的算法和基于群体智能的算法的几个突出特点。它在解决各种困难复杂的优化问题方面显示出巨大的潜力,但在性能上仍有很大的提升空间,特别是在解决高维和非凸问题方面。为此,本文提出了一种改进的Jaya优化算法,该算法采用一种新颖的logistic-正弦-余弦混合混沌映射,简称为IJaya。采用混合logistic正余弦混沌映射来平衡Jaya优化算法的探索和开发过程。使用7个不同尺度设置的基准测试函数来评估改进算法的性能。计算结果表明,改进的Jaya优化算法在大多数高维测试函数上的性能都大大优于原来的Jaya优化算法。
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引用次数: 0
Multiple O(t-α) Stability of Fractional-order Switched Neural Networks with Time-varying Delays 时变时滞分数阶切换神经网络的多O(t-α)稳定性
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837776
Zhongwen Wu, Fanghai Zhang
This article investigates multiple O(t-α) stability of fractional-order switched neural networks(FOSNNs) with time-varying delays. Under the framework of Filippov solution and geometric properties of activation function, some new results are established to ascertain the existence of equilibria. Besides, FOSNNs have more stable equilibria, which reveals that the effect of switching threshold in fractional-order neural networks. One example is provided to illustrate the effectiveness of the theoretical results.
研究时变时滞分数阶切换神经网络(fosnn)的多O(t-α)稳定性。在Filippov解和激活函数的几何性质的框架下,建立了一些新的结果来确定平衡点的存在性。此外,fosnn具有更稳定的平衡点,这揭示了开关阈值在分数阶神经网络中的作用。最后通过一个算例说明了理论结果的有效性。
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引用次数: 0
SoftLight: A Maximum Entropy Deep Reinforcement Learning Approach for Intelligent Traffic Signal Control SoftLight:一种智能交通信号控制的最大熵深度强化学习方法
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837664
Pengyong Wang, Feng Mao, Zhiheng Li
Intelligent traffic signal control plays a crucial role in alleviating traffic congestion. With increasingly available traffic data, there is a trend to use deep reinforcement learning (DRL) techniques for intelligent traffic signal control. However, a majority of existing DRL methods are based on Q-learning, where the optimal solution is always a deterministic policy, so they may fail to adapt to heterogeneous traffic flow and different environment settings. In this paper, we propose a method called SoftLight based on maximum entropy DRL. Through the regularization of maximum entropy, our method learns a stochastic policy that significantly reduces the queue length at the intersection. At the same time, our method keeps the policy as random as possible, which achieves better adaptability to heterogeneous traffic flow. By conducting comprehensive experiments, we demonstrate that our method outperforms existing DRL methods in both phase selection and phase shift settings. We also compare our method with the prevalent maximum entropy DRL method, soft actor-critic (SAC). The results show that our method can find better solutions than SAC under different model designs and hyper-parameters.
智能交通信号控制在缓解交通拥堵方面起着至关重要的作用。随着交通数据的不断增加,使用深度强化学习(DRL)技术进行智能交通信号控制是一种趋势。然而,现有的DRL方法大多基于Q-learning,其最优解总是一个确定性的策略,因此可能无法适应异构交通流和不同的环境设置。本文提出了一种基于最大熵DRL的方法SoftLight。通过最大熵的正则化,我们的方法学习了一种随机策略,该策略显著地减少了交叉口的队列长度。同时,我们的方法尽可能保持策略的随机性,对异构交通流具有更好的适应性。通过全面的实验,我们证明了我们的方法在相位选择和相移设置方面优于现有的DRL方法。我们还比较了我们的方法与流行的最大熵DRL方法,软演员评论家(SAC)。结果表明,在不同的模型设计和超参数下,我们的方法都能找到比SAC更好的解。
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引用次数: 1
Ship Course Tracking Control Using Differential of Log-Sum-Exp Neural Network and Model Predictive Control 基于Log-Sum-Exp差分神经网络和模型预测控制的船舶航向跟踪控制
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837498
J. Jia, Yuchi Cao, Tie-shan Li, Jiakun Xu, Xiuxian Yang
The Differential of Log-Sum-Exp $(DLSE_{T})$ neural network (NN) is combined with model predictive control (MPC) to perform course tracking control based on data. In the past, classical MPC was used to track a given ship reference course, but the ship model should be precisely known, and the cost of MPC online optimization calculation was high. To tackle these problems data driven DLSET NN is used in this paper to approximate the cost functionals based on course data. Off-line neural network training, and DLSET characteristics can reduce the cost of online optimization, and MPC can ensure that the rudder angle constraint is satisfied. According to the simulation results, the DLSET-based MPC is feasible in ship course tracking control.
将Log-Sum-Exp $(DLSE_{T})$神经网络(NN)与模型预测控制(MPC)相结合,实现基于数据的航向跟踪控制。传统的MPC方法是对给定的船舶参考航向进行跟踪,但需要精确知道船舶模型,且MPC在线优化计算成本较高。为了解决这些问题,本文使用基于课程数据的DLSET神经网络来近似成本函数。离线神经网络训练和DLSET特性可以降低在线优化的成本,MPC可以保证满足舵角约束。仿真结果表明,基于dlset的MPC在船舶航向跟踪控制中是可行的。
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引用次数: 0
Computer Numerical Experiment Results of Zhang Neural Net Connected to Jacobi Iteration Algorithm for Static Linear Equation System Solving 张神经网络与Jacobi迭代算法结合求解静态线性方程组的计算机数值实验结果
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837495
Changyuan Wang, Xiao Liu, Yunong Zhang
It is very common and vital to solve linear equation system (LES) in numerical fields. Generally, LES problems mainly include two types, i.e., the time-dependent LES problem and the static (i.e., time-independent) LES problem. With the rapid development of artificial intelligence, neural network has rich application scenes in many fields. For example, Zhang neural net (ZNN) is an effective neural network when solving time-dependent problems. In this paper, we present a special ZNN model termed elegant-formula ZNN (EFZNN) model. In addition, the specific EFZNN model has close relation with the traditional algorithm, i.e., Jacobi iteration (JI) algorithm, after ingenious construction and discretization by Euler forward discretization formula. Especially, when we fix the step-size in the discretization EFZNN algorithm as 1, it is the same as the JI algorithm. Besides, the ZNN and EFZNN models including the corresponding discretization algorithms for solving the LES are introduced, and the feasibility and efficiency of them in solving the LES are verified by, more importantly, computer numerical experiments, being the main merit of the paper.
求解线性方程组是数值领域中非常普遍和重要的问题。一般来说,LES问题主要包括两种类型,即时变LES问题和静态(即时变)LES问题。随着人工智能的快速发展,神经网络在许多领域有着丰富的应用场景。例如,张神经网络(ZNN)是解决时变问题的有效神经网络。本文提出了一种特殊的ZNN模型——优雅公式ZNN (EFZNN)模型。此外,具体的EFZNN模型经过欧拉正演离散公式的巧妙构造和离散化,与传统的雅可比迭代(Jacobi iteration, JI)算法密切相关。特别是,当我们将离散化EFZNN算法的步长固定为1时,它与JI算法相同。此外,还介绍了ZNN和EFZNN模型及其离散化算法,并通过计算机数值实验验证了其求解LES的可行性和有效性,这是本文的主要优点。
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引用次数: 1
Research on Control Strategy of Hybrid Vehicle Based on ANFIS 基于ANFIS的混合动力汽车控制策略研究
Pub Date : 2022-07-15 DOI: 10.1109/icaci55529.2022.9837506
Wen Wei, Pengcheng Liao, Jinzhan Xie, Bo Yu
This paper takes hybrid vehicles as the research object, research on the fuel economy of hybrid vehicles and their control strategies, train the data collected by the hybrid vehicle through the ANFIS toolbox, Takagi-Sugeno fuzzy inference algorithm was established, Fuzzy inference rules for torque allocation are generated. The optimized model of the ANFIS algorithm is imported into the vehicle model for simulation. Compared with the control strategy based on logic threshold, the simulation results show that the torque distribution of hybrid vehicles can be reasonably performed by ANFIS, and the hybrid vehicles optimized based on ANFIS algorithm can significantly improve the fuel economy of the whole vehicle, which verifies the effectiveness and practicability of the proposed control strategy.
本文以混合动力汽车为研究对象,研究混合动力汽车的燃油经济性及其控制策略,通过ANFIS工具箱对混合动力汽车采集的数据进行训练,建立Takagi-Sugeno模糊推理算法,生成扭矩分配的模糊推理规则。将ANFIS算法优化后的模型导入到整车模型中进行仿真。仿真结果表明,与基于逻辑阈值的控制策略相比,ANFIS可以合理地执行混合动力汽车的转矩分配,基于ANFIS算法优化的混合动力汽车可以显著提高整车的燃油经济性,验证了所提控制策略的有效性和实用性。
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引用次数: 0
期刊
2022 14th International Conference on Advanced Computational Intelligence (ICACI)
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