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学者姓名：张莹
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Abstract ：
This article solves the dual objective control problem for an energy storage system by distributed aperiodic sampled-data controller under both connected static network and jointly-connected switching network. The proposed sample-and-hold controller is composed of the leaderless consensus algorithm, which aims at state-of-energy balancing, and the leader-following distributed observer, which aims at reference power tracking. By resorting to the generalized Krasovskii-LaSalle theorem, it is proven that the closed-loop system is uniformly exponentially stable using the so-called limiting solution. There are two distinguished features of the proposed control scheme. First, the designs of the leaderless consensus algorithm and the leader-following distributed observer can be accomplished independently. Second, the effectiveness of the control law can be guaranteed by properly tuning the feedback gains even for some extreme cases of drastic changes on sensing and sampling. Comprehensive simulation results are shown to examine the performance of the proposed control implement.
Keyword ：
distributed observer distributed observer energy storage system management energy storage system management leaderless/leader-following consensus leaderless/leader-following consensus networked power system networked power system sampled-data control sampled-data control
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| GB/T 7714 | Su, Youfeng , Liu, Xin , Cai, He et al. Distributed aperiodic sampled-data implement for dual objective control of energy storage systems [J]. | INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL , 2023 . |
| MLA | Su, Youfeng et al. "Distributed aperiodic sampled-data implement for dual objective control of energy storage systems" . | INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL (2023) . |
| APA | Su, Youfeng , Liu, Xin , Cai, He , Zhang, Ying , Chen, Xiaofeng . Distributed aperiodic sampled-data implement for dual objective control of energy storage systems . | INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL , 2023 . |
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In this article, we present a novel distributed adaptive output feedback control for the cooperative output regulation problem of linear multiagent systems. The agent plant is general in the sense that those interesting practical issues such as unknown dynamics, directed network graph, and agents with nonidentical relative degrees are taken into account simultaneously. The obtained controller consists of the reduced-order observer, the internal model, as well as the adaptive control law, all of which are shown to be fully distributed without using the knowledge of Laplacian matrix of the network graph. It is of interest to see that, in our recursive design, each agent does not need to estimate the unknown parameters from the neighbors, giving rise to a merely two-dimensional adaptive law with quite a simple structure. It is also this feature that our design has the capability of handling the agents with arbitrary nonidentical high relative degrees.
Keyword ：
Adaptive control Adaptive control Eigenvalues and eigenfunctions Eigenvalues and eigenfunctions Knowledge engineering Knowledge engineering multiagent systems multiagent systems Multi-agent systems Multi-agent systems Observers Observers Output feedback Output feedback output regulation output regulation recursive design recursive design unknown dynamics unknown dynamics
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| GB/T 7714 | Zhang, Ying , Su, Youfeng , Wang, Xinghu . Distributed Adaptive Output Feedback Control for Multiagent Systems With Unknown Dynamics [J]. | IEEE TRANSACTIONS ON AUTOMATIC CONTROL , 2021 , 66 (3) : 1367-1374 . |
| MLA | Zhang, Ying et al. "Distributed Adaptive Output Feedback Control for Multiagent Systems With Unknown Dynamics" . | IEEE TRANSACTIONS ON AUTOMATIC CONTROL 66 . 3 (2021) : 1367-1374 . |
| APA | Zhang, Ying , Su, Youfeng , Wang, Xinghu . Distributed Adaptive Output Feedback Control for Multiagent Systems With Unknown Dynamics . | IEEE TRANSACTIONS ON AUTOMATIC CONTROL , 2021 , 66 (3) , 1367-1374 . |
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Abstract ：
随着国家"双一流"高校建设目标的推进,如何建设"双一流"高校成为各高校所面临的问题.文章以福州大学"双一流"建设目标下的计算机公共基础课程改革为例,讨论了符合学校"双一流"建设目标的计算机公共基础课程要求,分析了现状及面临的问题,构建了计算机公共基础课程体系结构,提出了改革方案,从而提高计算机公共基础课程教学质量.
Keyword ：
双一流 双一流 计算思维 计算思维 计算机基础课程 计算机基础课程 课程改革 课程改革
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| GB/T 7714 | 吴运兵 , 张莹 , 朱丹红 et al. "双一流"建设下课程体系建设与教学改革探索 ——以计算机公共基础课为例 [J]. | 中国轻工教育 , 2019 , (3) : 39-45 . |
| MLA | 吴运兵 et al. ""双一流"建设下课程体系建设与教学改革探索 ——以计算机公共基础课为例" . | 中国轻工教育 3 (2019) : 39-45 . |
| APA | 吴运兵 , 张莹 , 朱丹红 , 余小燕 . "双一流"建设下课程体系建设与教学改革探索 ——以计算机公共基础课为例 . | 中国轻工教育 , 2019 , (3) , 39-45 . |
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In this paper, we study the cooperative output regulation problem for a class of general linear uncertain multi-input multi-output (MIMO) multi-agent systems subject to a well-defined vector relative degree. By proposing some suitable internal model, the problem is first converted into the auxiliary cooperative stabilization problem of the augmented system in the so-called strict feedback normal form. This auxiliary problem is then solved by some developed robust control techniques, such as multiple high-gain feedback and mixed distributed observer, leading to an effective distributed output feedback regulator synthesis for the original cooperative output regulation problem.
Keyword ：
cooperative control cooperative control MIMO MIMO output feedback output feedback output regulation output regulation vector relative degrees vector relative degrees
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| GB/T 7714 | Zhang, Ying , Su, Youfeng . Cooperative output regulation for linear uncertain MIMO multi-agent systems by output feedback [J]. | SCIENCE CHINA-INFORMATION SCIENCES , 2018 , 61 (9) . |
| MLA | Zhang, Ying et al. "Cooperative output regulation for linear uncertain MIMO multi-agent systems by output feedback" . | SCIENCE CHINA-INFORMATION SCIENCES 61 . 9 (2018) . |
| APA | Zhang, Ying , Su, Youfeng . Cooperative output regulation for linear uncertain MIMO multi-agent systems by output feedback . | SCIENCE CHINA-INFORMATION SCIENCES , 2018 , 61 (9) . |
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Abstract ：
In this paper, we present a novel universal adaptive output feedback control for the cooperative output regulation problem of linear multi-agent systems. The agent plant is general in the sense that those interesting practical issues such as unknown dynamics, direct network graph, and nonidentical relative degree agents are taken into account simultaneously. The obtained controller consists of the reduced-order observer, the internal model, as well as the adaptive control law, all of which are shown to be fully distributed. It is of interest to see that, in our recursive design, each agent does not need to estimate the unknown parameters caused by the neighbors, giving rise to a merely two-dimensional adaptive law with quite a simple structure. It is also this feature that our design has the capability of handling the agents with arbitrary nonidentical high relative degrees. © 2018 IEEE.
Keyword ：
Adaptive control systems Adaptive control systems Agricultural robots Agricultural robots Computer vision Computer vision Feedback Feedback Multi agent systems Multi agent systems Nonlinear control systems Nonlinear control systems Robotics Robotics
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| GB/T 7714 | Zhang, Ying , Su, Youfeng , Wang, Xinghu . Cooperative Adaptive Output Regulation for Unknown Multi-agent Systems with Nonidentical Relative Degrees [C] . 2018 : 1075-1080 . |
| MLA | Zhang, Ying et al. "Cooperative Adaptive Output Regulation for Unknown Multi-agent Systems with Nonidentical Relative Degrees" . (2018) : 1075-1080 . |
| APA | Zhang, Ying , Su, Youfeng , Wang, Xinghu . Cooperative Adaptive Output Regulation for Unknown Multi-agent Systems with Nonidentical Relative Degrees . (2018) : 1075-1080 . |
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针对海量数据背景下K-means聚类结果不稳定和收敛速度较慢的问题,提出了基于MapReduce框架下的K-means改进算法.首先,为了能获得K-means聚类的初始簇数,利用凝聚层次聚类法对数据集进行聚类,并用轮廓系数对聚类结果进行初步评价,将获得数据集的簇数作为K-means算法的初始簇中心进行聚类;其次,为了能适应于海量数据的聚类挖掘,将改进的K-means算法部署在MapReduce框架上进行运算.实验结果表明,在单机性能上,该方法具有较高的准确率和召回率,同时也具有较强的聚类稳定性;在集群性能上,也具有较好的加速比和运行速度.
Keyword ：
K-means算法 K-means算法 MapReduce框架 MapReduce框架 数据挖掘 数据挖掘 聚类分析 聚类分析
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| GB/T 7714 | 阴爱英 , 吴运兵 , 朱敏琛 et al. 基于MapReduce框架下K-means的改进算法 [J]. | 计算机应用研究 , 2018 , 35 (8) : 2295-2298 . |
| MLA | 阴爱英 et al. "基于MapReduce框架下K-means的改进算法" . | 计算机应用研究 35 . 8 (2018) : 2295-2298 . |
| APA | 阴爱英 , 吴运兵 , 朱敏琛 , 张莹 . 基于MapReduce框架下K-means的改进算法 . | 计算机应用研究 , 2018 , 35 (8) , 2295-2298 . |
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The recent paper [9] studied the cooperative robust output regulation of linear multi-agent systems with arbitrary parametric uncertainty via the distributed output feedback control, where the network is assumed to be fixed. In this paper, we further show that the same controller is also efficient for the more general uniformly connected switching network. In contrast to the traditional quadratic Lyapunov function in literatures, the Lipchitz continuous Lyapunov function is developed here for the closed-loop system to guarantee its internal stability.
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| GB/T 7714 | Zhang, Ying , Su, Youfeng . Cooperative Linear Robust Output Regulation under Uniformly Connected Switching Network [C] . 2017 : 770-775 . |
| MLA | Zhang, Ying et al. "Cooperative Linear Robust Output Regulation under Uniformly Connected Switching Network" . (2017) : 770-775 . |
| APA | Zhang, Ying , Su, Youfeng . Cooperative Linear Robust Output Regulation under Uniformly Connected Switching Network . (2017) : 770-775 . |
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Abstract ：
本文着重通过分析国际几个发达国家的税收信息化管理经验及我国税收信息化发展的现状及存在的主要问题,总结出税务信息化建设的发展规律,进而浅析税务系统信息化建设的方向:即征收管理信息化、数据交换多样化、各类系统一体化、系统管理扁平化.
Keyword ：
信息化 信息化 税收 税收 税收信息化建设 税收信息化建设
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| GB/T 7714 | 张莹 . 浅谈我国税收信息化建设 [J]. | 计算机光盘软件与应用 , 2012 , (12) : 13 . |
| MLA | 张莹 . "浅谈我国税收信息化建设" . | 计算机光盘软件与应用 12 (2012) : 13 . |
| APA | 张莹 . 浅谈我国税收信息化建设 . | 计算机光盘软件与应用 , 2012 , (12) , 13 . |
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为有效地解决遗传算法收敛性和多样性的矛盾,在分析算子结构的基础上,提出了一种新型的遗传算法.该算法的核心在于,一方面通过父子竞争保留优秀个体和改进型交叉算子保证收敛性,另一方面对参与交叉的基因段进行基于海明距离相似度检测提高交叉操作的有效性;最后,采用基于基因位多样度的自识别高变异率算子来改善种群的多样性.实验证明,改进的算子显著地提高了收敛速度和搜索全局最优解的能力.
Keyword ：
交叉算子 交叉算子 变异算子 变异算子 海明距离 海明距离 自识别 自识别 遗传算法 遗传算法
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| GB/T 7714 | 叶菁 , 张莹 , 阮一文 . 一种改进型交叉算子和自识别高变异算子新型遗传算法的研究 [J]. | 福州大学学报（自然科学版） , 2009 , 37 (6) : 808-811,817 . |
| MLA | 叶菁 et al. "一种改进型交叉算子和自识别高变异算子新型遗传算法的研究" . | 福州大学学报（自然科学版） 37 . 6 (2009) : 808-811,817 . |
| APA | 叶菁 , 张莹 , 阮一文 . 一种改进型交叉算子和自识别高变异算子新型遗传算法的研究 . | 福州大学学报（自然科学版） , 2009 , 37 (6) , 808-811,817 . |
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基于关联规则的文本分类方法ARC-BC是目前已知的分类效果最好的关联规则分类算法.本文提出了利用ARC-BC分类器的封闭测试的结果对分类器进行调整规则置信度的算法RCA(Rules Confidence Adjustment),参与正确分类行为次数多于参与错误分类行为次数(即"威信"较高)的规则应该拥有更高的置信度,反之,就赋予更低的置信度.实验结果表明,经过RCA算法调整的关联文本分类器的分类效果得到显著提高.
Keyword ：
关联规则 关联规则 文本分类 文本分类 置信度 置信度 调整 调整
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| GB/T 7714 | 林堃 , 白清源 , 谢丽聪 et al. 基于规则置信度调整的关联文本分类 [J]. | 计算机科学 , 2008 , 35 (3) : 173-176 . |
| MLA | 林堃 et al. "基于规则置信度调整的关联文本分类" . | 计算机科学 35 . 3 (2008) : 173-176 . |
| APA | 林堃 , 白清源 , 谢丽聪 , 谢伙生 , 张莹 . 基于规则置信度调整的关联文本分类 . | 计算机科学 , 2008 , 35 (3) , 173-176 . |
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