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A feature enhancement loss for person re-identification 一种用于人员再识别的特征增强损失
Systems Science & Control Engineering Pub Date : 2023-06-09 DOI: 10.1080/21642583.2023.2220482
Yao Peng, Yining Lin, Huajian Ni, Hua Gao, Chenchen Hu
{"title":"A feature enhancement loss for person re-identification","authors":"Yao Peng, Yining Lin, Huajian Ni, Hua Gao, Chenchen Hu","doi":"10.1080/21642583.2023.2220482","DOIUrl":"https://doi.org/10.1080/21642583.2023.2220482","url":null,"abstract":"The goal of person re-identification (ReID) is to recognize the same person across cameras. Classification loss is one of the most widely used objective functions in person ReID tasks based on deep learning. However, the features, which are learned with the classification loss, are not sufficiently discriminative enough when they are close to the origin. In this study, we propose a feature enhancement loss to move features of person images away from the origin. During training, our proposed method adds a regularization item to avoid the feature vector near the origin point. Our method was evaluated on two benchmark person ReID benchmark datasets, Market1501 and DukeMTMC-reID. Results show that the proposed method outperforms the state-of-the-art method by 0.9% and 1.2% on rank-1 accuracy and mean average precision (mAP) index on Market-1501, 1.0% and 1.4% on rank-1 accuracy and mAP index on DukeMTMC-reID. This means that when learning features with a classification loss, making the features far away from the origin point is meaningful.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127236901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel method for Jinnan cattle individual classification based on deep mutual learning 基于深度相互学习的晋南牛个体分类新方法
Systems Science & Control Engineering Pub Date : 2023-06-03 DOI: 10.1080/21642583.2023.2207587
Wangli Hao, Wangbao Hao, J. Wang, Hua Yang, Fuzhong Li
{"title":"A novel method for Jinnan cattle individual classification based on deep mutual learning","authors":"Wangli Hao, Wangbao Hao, J. Wang, Hua Yang, Fuzhong Li","doi":"10.1080/21642583.2023.2207587","DOIUrl":"https://doi.org/10.1080/21642583.2023.2207587","url":null,"abstract":"As the core technology of precision animal husbandry, efficient and rapid identification of Jinnan cattle individuals can promote the scale, informatization and refinement of breeding, which is very necessary for the development of animal husbandry at this stage. However, the traditional livestock individual recognition method based on ear tag is labour-consuming, time-consuming, inefficient, easy to wear and limited by the recognition distance, and the accuracy is also very low. In order to solve this problem, a new method of Jinnan cattle individual recognition based on deep mutual learning is proposed by using the non-contact image recognition method. Two student networks are designed. They supervise each other and complete the task together. Their efficiency can be higher than that of a strong teacher network. Through this method, the individual recognition performance of Jinnan cattle is also enhanced. The experimental results verify the effectiveness of the method of deep mutual learning. Consult and learn from the peer network are used to improve generalization, so as to improve model recognition performance. Finally, the accuracy is 99.3% on the Jinnan cattle individual dataset established in this paper. The application of the contactless cattle individual recognition method in the farm is of great significance.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127850859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of an adaptive terminal sliding mode to control the PMSM chaos phenomenon 设计一种自适应终端滑模控制永磁同步电机混沌现象
Systems Science & Control Engineering Pub Date : 2023-06-03 DOI: 10.1080/21642583.2023.2207593
Abolfazl Karimi, H. Akbari, S. Mousavi, Z. Beheshtipour
{"title":"Design of an adaptive terminal sliding mode to control the PMSM chaos phenomenon","authors":"Abolfazl Karimi, H. Akbari, S. Mousavi, Z. Beheshtipour","doi":"10.1080/21642583.2023.2207593","DOIUrl":"https://doi.org/10.1080/21642583.2023.2207593","url":null,"abstract":"This paper schemes a new nonlinear method for controlling and suppressing of chaos instability in the PMSM. First, a nonlinear model of PMSM is considered that is able to describe the dynamic behaviour of the PMSM in different functional conditions, including the occurrence of chaos. As an integral part of most physical systems, disturbance with an unknown upper limit is considered in the design of the control scheme. Parametric uncertainty is also included in the PMSM system model and a new control technique is presented based on robust adaptive and sliding mode approaches to prevent chaos. In the proposed method, adaptive technique is used to estimate the upper bound of uncertain terms, disturbances and nonlinear terms, and the robust sliding mode scheme is designed to stabilize the closed-loop PMSM system in contradiction of chaos. Using comparisons, the efficiency of the proposed method is shown in different working conditions.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131092345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multiple-bipartite consensus for networked Lagrangian systems without using neighbours' velocity information in the directed graph 不使用有向图中邻居速度信息的网络化拉格朗日系统的多重二部一致性
Systems Science & Control Engineering Pub Date : 2023-05-16 DOI: 10.1080/21642583.2023.2210185
Tiehui Zhang, Qiuxiang Liu, Jingyi Liu, Zhaoyan Wang, Hengyu Li
{"title":"Multiple-bipartite consensus for networked Lagrangian systems without using neighbours' velocity information in the directed graph","authors":"Tiehui Zhang, Qiuxiang Liu, Jingyi Liu, Zhaoyan Wang, Hengyu Li","doi":"10.1080/21642583.2023.2210185","DOIUrl":"https://doi.org/10.1080/21642583.2023.2210185","url":null,"abstract":"This paper investigates the multiple-bipartite consensus problem without considering neighbours' velocity information in networked Lagrangian systems (NLSs). A distributed adaptive control algorithm without using neighbours' velocity information is proposed, which facilitates the practical configuration deployments in the coopetition networks. By borrowing a subtle vector composed of the eigenvector components associated with zero eigenvalue of Laplacian matrix, a novel reference estimated vector is introduced to conduct the stability analysis step-by-step in the coopetition networks. Finally, simulations are provided to show the effectiveness of the proposed algorithm.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"388 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116325265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recognition and robot grasping of disordered workpieces with 3D laser line profile sensor 三维激光线型传感器对无序工件的识别与机器人抓取
Systems Science & Control Engineering Pub Date : 2023-05-10 DOI: 10.1080/21642583.2023.2207584
Bin Ye, Zhanghua Wu, Sikui He, Huijun Li
{"title":"Recognition and robot grasping of disordered workpieces with 3D laser line profile sensor","authors":"Bin Ye, Zhanghua Wu, Sikui He, Huijun Li","doi":"10.1080/21642583.2023.2207584","DOIUrl":"https://doi.org/10.1080/21642583.2023.2207584","url":null,"abstract":"Disorderly grasping of mixed or stacked workpieces are widely used in the manufacturing industry, especially in customized assembly lines. The mutual occlusion between workpieces causes geometrical information loss, thus making it difficult to obtain precise poses when grasping the workpieces. To provide a better robotic disorderly grasping solution, we firstly use a 3D laser line profile sensor to acquire the point clouds of the workpieces. Then the point clouds are inputted into a relation-shape convolutional neural network (RS-CNN) for instance-level recognition. According to the recognition results, coarse point cloud registration as well as fine point cloud registration are employed to estimate the pose of each workpiece. The disordered workpieces will be picked up by a 6-axis industrial robot in priority order. Experimental results show that the proposed recognition and grasping system can achieve a higher grasping success rate on a set of four types of common workpieces with adversarial geometry.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132713013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Consensus tracking for a class of fractional-order non-linear multi-agent systems via an adaptive dynamic surface controller 一类分数阶非线性多智能体系统的自适应动态表面控制器一致性跟踪
Systems Science & Control Engineering Pub Date : 2023-05-05 DOI: 10.1080/21642583.2023.2207602
Z. Yaghoubi, Nastooh Taheri javan, Mahdi Bahaghighat
{"title":"Consensus tracking for a class of fractional-order non-linear multi-agent systems via an adaptive dynamic surface controller","authors":"Z. Yaghoubi, Nastooh Taheri javan, Mahdi Bahaghighat","doi":"10.1080/21642583.2023.2207602","DOIUrl":"https://doi.org/10.1080/21642583.2023.2207602","url":null,"abstract":"In this paper we investigate bottlenecks in adaptive dynamic surface control (DSC) and unveil an innovative consensus tracking controller to track the desired trajectory for a class of fractional-order multi-agent systems with non-linear dynamics. The study derives an algorithm by implementing graph theory and the DSC method. The main approaches in the control of fractional-order systems are the DSC and the adaptive DSC techniques to avoid the computational complexity of fractional-order virtual control law. According to these techniques, a virtual control law is formulated and the proposed controller is passed through a fractional-order dynamic surface. By employing the DSC and adaptive DSC laws, we demonstrate that the desired consensus tracking between agents can be ensured. To verify the performance of the new approach, we simulate the desirable scenarios and evaluate the results against a popular adaptive sliding mode technique.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132594241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A hybrid model for metro passengers flow prediction 地铁客流预测的混合模型
Systems Science & Control Engineering Pub Date : 2023-03-25 DOI: 10.1080/21642583.2023.2191632
Yuqing Sun, Kaili Liao
{"title":"A hybrid model for metro passengers flow prediction","authors":"Yuqing Sun, Kaili Liao","doi":"10.1080/21642583.2023.2191632","DOIUrl":"https://doi.org/10.1080/21642583.2023.2191632","url":null,"abstract":"In this paper, a novel ensemble learning model named EWT-EnsemLSTM-SSA, which assembles long short-term memory (LSTM), support vector regression (SVR), and sparrow search algorithm (SSA), is a proposed to deal with long term metro passenger flow volume prediction, which is an essential content of traffic flow prediction problems. Firstly, the empirical wavelet transform (EWT) method is introduced to decompose the original dataset into five wavelet time-sequence data for further prediction. Then, a cluster of LSTMs with diverse hidden layers and neuron counts are employed to explore and exploit the implicit information of the EWT-decomposed signals. Next, the output of LSTMs is aggregated into a nonlinear regression method SVR. Lastly, SSA is utilized to optimize the SVR automatically. The proposed EWT-EnsemLSTM-SSA model is applied in three case studies, using the data collected from the passengers’ amount in the Minneapolis, America metro, divided into one hour in one day. Experiment results, which compare the proposed EnsemLSTM-SSA model with five conventional time series forecasting models, show that the proposed model can achieve a better performance than the traditional prediction algorithms.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115673934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An active swing suppression control scheme of overhead cranes based on input shaping model predictive control 一种基于输入成形模型预测控制的桥式起重机摆动主动抑制控制方案
Systems Science & Control Engineering Pub Date : 2023-03-23 DOI: 10.1080/21642583.2023.2188401
Weiqiang Tang, Erpeng Zhao, Lijuan Sun, Haiyan Gao
{"title":"An active swing suppression control scheme of overhead cranes based on input shaping model predictive control","authors":"Weiqiang Tang, Erpeng Zhao, Lijuan Sun, Haiyan Gao","doi":"10.1080/21642583.2023.2188401","DOIUrl":"https://doi.org/10.1080/21642583.2023.2188401","url":null,"abstract":"An input shaper-based model predictive control scheme is proposed for an overhead crane to suppress the swing of the payload. A control-oriented mathematical model of the crane is firstly derived based on the small angle hypothesis. Furthermore, three kinds of commonly used shapers are discussed and a zero vibration derivative shaper is selected for the crane. Then, a model predictive swing suppression controller is designed for the crane based on the selected shaper. Constraints on the control input and its slew rate are respected. Besides, the constraint on the swing angle of the payload is also respected as an output constraint. The constrained solution is given in the form of standard quadratic programming. The designed control scheme combines open-loop and closed-loop control techniques, achieving accurate positioning of the trolley and good swing suppression of the payload. A series of simulation demonstrates the effectiveness and advantages of the proposed scheme.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125136162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Consensus of switched multi-agents system with cooperative and competitive relationship 具有合作与竞争关系的交换多智能体系统的共识
Systems Science & Control Engineering Pub Date : 2023-03-22 DOI: 10.1080/21642583.2023.2192008
Guang He, Mengyao Hu, Ziwen Shen
{"title":"Consensus of switched multi-agents system with cooperative and competitive relationship","authors":"Guang He, Mengyao Hu, Ziwen Shen","doi":"10.1080/21642583.2023.2192008","DOIUrl":"https://doi.org/10.1080/21642583.2023.2192008","url":null,"abstract":"In this paper, the consensus problem of a class of linear multi-agent systems is analysed. In our model, switching between subnetworks and competition between agents is considered simultaneously. We suppose that all subnetworks cannot achieve a consensus and switching signal has a minimum dwell time. By using the time-dependent quadratic Lyapunov function and the average dwell time method, a consensus condition of switched networks is obtained. By using the sum of squares (SOS) programming in the software package SOSTOOLS of Matlab, these resulting conditions can be implemented. The results obtained are also extended to uncertain linear multi-agent systems. Finally, a simulation example is given to illustrate the validity of our results.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132049044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Hybrid AC/DC control techniques with improved harmonic conditions using DBN based fuzzy controller and compensator modules 利用基于DBN的模糊控制器和补偿器模块改善谐波条件的交/直流混合控制技术
Systems Science & Control Engineering Pub Date : 2023-03-22 DOI: 10.1080/21642583.2023.2188406
P. Reddy, L. Saikia
{"title":"Hybrid AC/DC control techniques with improved harmonic conditions using DBN based fuzzy controller and compensator modules","authors":"P. Reddy, L. Saikia","doi":"10.1080/21642583.2023.2188406","DOIUrl":"https://doi.org/10.1080/21642583.2023.2188406","url":null,"abstract":"Hybrid AC–DC microgrid provides highly distributed generation receiving capacity by reducing multiple power conversions in individual AC or DC microgrids. Thus, the control of grid variables in a hybrid AC–DC microgrid is complicated due to erroneous frequency transients and the impact of negative sequence components. Hence, a novel Synchronous Reference Frame Phase-Locked Loop (SRF-PLL) with Self-curing decoupling network is introduced in which this network provides synchronization and distinguishes positive and negative sequences in discrete blocks. To eliminate fluctuation of grid variables in ac and dc sides, a novel Switched Tuned Arm Filter (STAF) and Variable Voltage Stabilization Compensator (VVSC) Multi-loop controller including central Deep Belief Network (DBN) with Fuzzy controller is presented. In which STAF Multi-loop controller use tuned circuits to suppress higher-order harmonics. Also, a central DBN with a fuzzy controller provides a control signal to an ac/dc converter to regulate power transmission. Additionally, in order to stabilize the dynamic voltage and compare the DC bus voltage with the reference value, the VVSC Multiloop controller uses a PWM to compare the DC bus voltage. Then the proposed techniques are simulated in Simulink platform and the results achieved stabilized voltage, low RMSE, and low delay.","PeriodicalId":428785,"journal":{"name":"Systems Science & Control Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129187487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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