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Memristor-Based Circuit of Sequential Associative Memory with Memory Interactions and Stimulus Similarity Effect

IEEE Transactions on Cognitive and Developmental Systems 2025年

作者： Xiong, Dongdong Wang, Xiaoping Jiang, Yiming Yang, Chao Jiang, Man Lai, Jingang Zeng, Zhigang Huazhong University of Science and Technology School of Artificial Intelligence and Automation Wuhan430074 China Key Laboratory of Image Processing and Intelligent Control of Education Ministry of China Wuhan430074 China Hubei Key Laboratory of Braininspired Intelligent Systems Wuhan430074 China Huazhong University of Science and Technology Institute of Artificial Intelligence School of Artificial Intelligence and Automation Key Laboratory of Image Processing and Intelligent Control of Education Ministry of China Wuhan430074 China Guangxi University of Science and Technology School of Computer Science and Technology Liuzhou545006 China Huazhong University of Science and Technology Department of Physiology School of Basic Medicine and Tongji Medical College Wuhan430030 China

Most proposed memristor-based circuits of associative memory consider various mechanisms in only one associative memory. Few works on circuit design of sequential associative memory have been reported. In this paper, a memristor-based circuit of sequential associative memory with memory interactions and stimulus similarity effect is designed. Two associative memories, the prior associative memory (PAM) and the later associative memory (LAM), are formed successively. The PAM modifies the rate of the formation of the LAM, and the LAM, in turn, affects the strength of the PAM, which are two interactions in sequential associative memory, called transfer and retroaction. In addition, the magnitudes of transfer and retroaction are determined by the similarity of the conditioned stimuli. The above functions are realized by the ring input processing module, memory module, transfer module and retroaction module. It has been identified in circuit analysis that the proposed circuit is power efficient and has good robustness. Furthermore, the proposed circuit has promising applications for fire rescue robots. © 2016 IEEE.

关键词： Associative storage

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LOW-COST STEAM CONSUMPTION control-SYSTEM FOR BATCH PULP COOKING

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control ENGINEERING PRACTICE 1995年第3期3卷 357-363页

作者： PETROVCIC, J HVALA, N BITENC, A STRMCNIK, S Department of Computer Automation and Control J. Stefan Institute Jamova 39 61111 Ljubljana Slovenia

In batch pulp cooking the heating steam is used only in some phases of the technological procedure. This causes large variations in steam now-rate and imposes high dynamic load at the steam generation plant. In the paper,a system for smooth steam consumption control is presented. It is based on three multiloop microprocessor-based controllers. The designed control structure is simple enough to be implemented as a stand-alone small-sized control system. Also, it provides a low-cost solution by eliminating the need to measure the steam now-rate on each digester. After the installation a reduction of 70% in steam now-rate variance was measured.

关键词： FLOW control MICROcomputer-BASED control BATCH control PULP INDUSTRY

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Conceptual model for process control software specification

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MICROPROCESSORS AND MICROSYSTEMS 1997年第10期20卷 617-630页

作者： Godena, G J. Stefan Institute Department of Computer Automation and Control Jamova 39 1000 Ljubljana Slovenia

The paper presents a method for software specification in the domain of industrial process control. As a result of ever more demanding applications, particularly in the area of PLC based control, there is an emerging need for introducing methods that include an appropriate conceptual model and define the specification process. An approach to the method development is presented, based on an architectural extension of the Ward-Mellor structured real time software engineering method. The core of the method is a conceptual model of the equipment control specification, which consists of two essential parts: the first is that of process equipment entities, and the second is the functional part. The former is further decomposed in relation to two aspects of the process equipment entities: the structural aspect and the classification aspect. In order to make the conceptual model more clear some segments of the real process control application dealing with the hydrolysis process in the production of TiO2 are given. (C) 1997 Elsevier Science B.V.

关键词： process control software engineering methodology conceptual modelling

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Performance analysis of platoons with adaptive cruise control

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IFAC-PapersOnLine 2018年第9期51卷 79-85页

作者： Lunze, Jan Ruhr-University Bochum Institute of Automation and Computer Control BochumD-44780 Germany

The paper investigates under what conditions the controlled vehicles in a platoon follow the time-headway spacing policy and can be guaranteed to avoid collisions. The first result is a requirement on the vehicle delay, which is a quantity that is directly related to the dynamics of the controlled vehicles. The second result shows that if the controlled vehicles have specified first-order dynamics, they follow the time-headway policy permanently and, hence, avoid collisions in all possible situations. For higher-order vehicles, a robustness approach is developed that uses the specified first-order model as approximate representation of the controlled vehicles and analyses how far the platoon may deviate from the behaviour of this ideal platoon. Examples demonstrate that these deviations are usually very small so that the collision avoidance guarantee can be transferred from the approximate model to the real platoon. © 2018

关键词： Adaptive cruise control

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TRNet: Two-Tier Recursion Network for Co-Salient Object Detection

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IEEE Transactions on Circuits and Systems for Video Technology 2025年

作者： Cong, Runmin Yang, Ning Liu, Hongyu Zhang, Dingwen Huang, Qingming Kwong, Sam Zhang, Wei Shandong University School of Control Science and Engineering Jinan250061 China Ministry of Education Key Laboratory of Machine Intelligence and System Control Jinan250061 China Beijing Jiaotong University Institute of Information Science Beijing100044 China Beijing Key Laboratory of Advanced Information Science and Network Technology Beijing100044 China Northwestern Polytechnical University Brain and Artificial Intelligence Laboratory School of Automation Xi'an710129 China University of Chinese Academy of Sciences School of Computer Science and Technology Beijing101408 China Lingnan University Hong Kong

Co-salient object detection (CoSOD) is to find the salient and recurring objects from a series of relevant images, where modeling inter-image relationships plays a crucial role. Different from the commonly used direct learning structure that inputs all the intra-image features into some well-designed modules to represent the inter-image relationship, we resort to adopting a recursive structure for inter-image modeling, and propose a two-tier recursion network (TRNet) to achieve CoSOD in this paper. The two-tier recursive structure of the proposed TRNet is embodied in two stages of inter-image extraction and distribution. On the one hand, considering the task adaptability and inter-image correlation, we design an inter-image exploration with recursive reinforcement module to learn the local and global inter-image correspondences, guaranteeing the validity and discriminativeness of the information in the step-by-step propagation. On the other hand, we design a dynamic recursion distribution module to fully exploit the role of inter-image correspondences in a recursive structure, adaptively assigning common attributes to each individual image through an improved semi-dynamic convolution. Experimental results on five prevailing CoSOD benchmarks demonstrate that our TRNet outperforms other competitors in terms of various evaluation metrics. The code and results of our method are available at https://***/rmcong/TRNetTCSVT2025. © 1991-2012 IEEE.

关键词： HTTP

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Exploiting the Intrinsic Neighborhood Semantic Structure for Domain Adaptation in EEG-based Emotion Recognition

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IEEE Transactions on Affective Computing 2025年

作者： Yang, Yi Wang, Ze Song, Yu Jia, Ziyu Wang, Boyu Jung, Tzyy-Ping Wan, Feng Macau University of Science and Technology Macao Centre for Mathematical Sciences Respiratory Disease AI Laboratory on Epidemic Intelligence and Medical Big Data Instrument Applications Faculty of Innovation Engineering 999078 China Tianjin University of Technology School of Electrical Engineering and Automation Tianjin Key Laboratory of New Energy Power Conversion Transmission and Intelligent Control Tianjin300384 China Chinese Academy of Sciences Beijing Key Laboratory of Brainnetome and Brain-Computer Interface and Brainnetome Center Institute of Automation Beijing100045 China Western University Department of Computer Science Brain Mind Institute LondonONN6A 3K7 Canada University of California at San Diego Swartz Center for Computational Neuroscience Institute for Neural Computation La Jolla CA92093 United States University of Macau Department of Electrical and Computer Engineering Faculty of Science and Technology China University of Macau Centre for Cognitive and Brain Sciences Centre for Artificial Intelligence and Robotics Institute of Collaborative Innovation 999078 China

Due to the inherent non-stationarity and individual differences present in electroencephalogram (EEG) signals, developing a generalizable model that performs well on new subjects is challenging in EEG-based emotion recognition. Most existing domain adaptation (DA) methods typically mitigate these discrepancies by aligning the marginal distributions of domain feature representations. However, when there is a significant difference in the class-conditional distribution between domain features and labels, the domain-invariant features learned by aligning marginal distributions may have limited discriminative ability for unlabeled target instances or even prove counterproductive. To address this issue, we propose a Neighborhood Semantic Aware Learning-based Dynamic Graph Attention Convolution (NSAL-DGAT) approach that learns target semantic information by considering the inter-domain semantic topological structure, thereby improving classifier adaptation for target instances. Specifically, the proposed NSAL framework is designed to capitalize on the insight that after domain feature alignment, some target samples and their neighboring source samples exhibit similar semantics. By leveraging the neighborhood topological structure, we extract and incorporate semantic target features to train a more transferable classifier. Besides, we implement an entropy weighting mechanism to emphasize representative target semantic information, encouraging target instances to prioritize high-confidence individuals within the source neighborhood. We have conducted extensive experiments on the public SEED dataset and our collected the Hearing-Impaired EEG Dataset (HIED). The experimental results underscore the efficacy of our proposed NSAL-DGAT approach, showcasing state-of-the-art accuracy in subject-dependent as well as subject-independent scenarios. The source code is available at https://***/YYingDL/NSAL-DGAT. © 2010-2012 IEEE.

关键词： Speech analysis

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Reinforcement learning-based unknown reference tracking control of HMASs with nonidentical communication delays

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Science China(Information Sciences) 2023年第7期66卷 46-57页

作者： Yong XU Zheng-Guang WU Wei-Wei CHE Deyuan MENG School of Automation Beijing Institute of Technology Institute of Cyber-Systems and Control Zhejiang University College of Mathematics and Computer Science Zhejiang Normal University Department of Automation Qingdao University School of Automation Science and Electrical Engineering Beihang University(BUAA)

This paper focuses on the optimal output synchronization control problem of heterogeneous multiagent systems(HMASs) subject to nonidentical communication delays by a reinforcement learning *** with existing studies assuming that the precise model of the leader is globally or distributively accessible to all or some of the followers, the leader's precise dynamical model is entirely inaccessible to all the followers in this paper. A data-based learning algorithm is first proposed to reconstruct the leader's unknown system matrix online. A distributed predictor subject to communication delays is further devised to estimate the leader's state, where interaction delays are allowed to be nonidentical. Then, a learning-based local controller, together with a discounted performance function, is projected to reach the optimal output synchronization. Bellman equations and game algebraic Riccati equations are constructed to learn the optimal solution by developing a model-based reinforcement learning(RL) algorithm online without solving regulator equations, which is followed by a model-free off-policy RL algorithm to relax the requirement of all agents' dynamics faced by the model-based RL algorithm. The optimal tracking control of HMASs subject to unknown leader dynamics and communication delays is shown to be solvable under the proposed RL algorithms. Finally, the effectiveness of theoretical analysis is verified by numerical simulations.

关键词： heterogeneous multiagent systems HMAS reinforcement learning RL optimal output synchronization communication delays

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control reconfiguration of physically interconnected systems by decentralized virtual actuators

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IFAC-PapersOnLine 2015年第21期48卷 360-367页

作者： Vey, D. Hugging, S. Bodenburg, S. Lunze, J. Institute for Automation and Computer Control Ruhr- Universität Bochum Bochum Germany

This paper presents a new method for decentralized control reconfiguration after actuator failures in physically interconnected systems by decentralized linear virtual actuators (DELVA). In a decentralized control system, the direct application of the design method for linear virtual actuators (LVA) based on the model of the overall system results in a centralized reconfigured controller. This paper introduces an alternative reconfiguration method that reconfigures only the faulty subsystem, retains the decentralized control structure and guarantees stability for the reconfigured overall system. Depending on reconfigurability conditions for the faulty subsystem, different DELVAs, including appropriate design rules, are presented. The main result is a design method for a DELVA that stabilizes the reconfigured control loop without requiring an information exchange over a digital network. The DELVA is illustrated by an application to a thermo-fluid process. © 2015

关键词： Fault tolerance

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The simulation system for investigation of control methods of autonomous underwater vehicle

The simulation system for investigation of control methods o...

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16th International Conference on computer Graphics and Vision, GraphiCon 2006

作者： Bobkov, Valery Borisov, Yuriy Melman, Sergey Ronshin, Yurij Department of Computer Graphics Institute for Automation and Control Processes Russia Institute for Automation and Control Processes Russia

The paper is devoted to creation of the simulation system for investigation of control methods with complex spatial movements of the autonomous underwater vehicle. The principle of a virtual reality and simulation of the basic systems of the vehicle is put in a basis of the system. The structure of the system and the scheme of its operation are described. The use of the optical information for the purposes of navigation was underlined. The model of a virtual optical range finder with use of a vehicle's trajectory correction method and algorithm of restoration of 3D points of the underwater environment are offered. The algorithm provides dense 3D covering with restoration of normal-vectors of surfaces from three consecutive calibrated images. Results of computing experiments for synthetic scenes of different depth are presented. The future works aimed to development of methods and algorithms AUV trajectories planning according to sonar and video data with taking its mission into account.

关键词： Sonar

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THE SOFTWARE SIMULATOR AS AN EFFECTIVE TOOL FOR TESTING control ALGORITHMS

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SIMULATION 1994年第1期63卷 6-14页

作者： RIHAR, M [o_1]Department of Computer Automation and Control J. Stefan Institute Jamova 39 Ljubljana Slovenia

This paper describes a software simulator used in the development of control algorithms for the pulp cooking process. The laboratory-type simulator has been built up, based on the same control system hardware and software already installed in an industrial plant. The simulator itself emulates some operator control actions, the behavior of typical pulp cooking process variables and important signals from the process equipment. The simulation can be performed in real time or in two different accelerated modes. In this paper, the background of the simulator is also introduced and a discussion of advantages, based on experience, is attached at the end.

关键词： control SYSTEMS INDUSTRIAL control SIMULATORS EMULATION

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