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学者姓名：张莹
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Abstract ：
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 等. "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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Abstract ：
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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Abstract ：
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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传统聚类方法将对象严格地划分到某一类,但很多时候边界对象不能被严格地划分.粗糙集用上近似集和下近似集表示一个类,对这种边界不确定的处理非常有效,典型算法有基于粗糙集的k-means聚类算法和基于粗糙集的leader聚类算法.本文针对RFA(R0ughFuzzyApproach)算法存在的不足,提出了一种新的基于粗糙集的leader聚类算法(NRL,Novel Rough-based Leader).其基本思想是首先数据项由于与其最近类中心的距离不同,分别被划分到leader集或者supporting leader集,然后对leader集和supporting leader集进行标号,得到聚类结果.实验结果表明NRL算法非常有效.
Keyword ：
k-means算法 k-means算法 leader算法 leader算法 粗糙集 粗糙集 聚类 聚类
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| GB/T 7714 | 张琼 , 张莹 , 白清源 et al. 一种新的基于粗糙集的leader聚类算法 [J]. | 计算机科学 , 2008 , 35 (3) : 177-179 . |
| MLA | 张琼 et al. "一种新的基于粗糙集的leader聚类算法" . | 计算机科学 35 . 3 (2008) : 177-179 . |
| APA | 张琼 , 张莹 , 白清源 , 谢丽聪 , 谢伙生 . 一种新的基于粗糙集的leader聚类算法 . | 计算机科学 , 2008 , 35 (3) , 177-179 . |
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Abstract ：
针对文本特征向量高维数的问题,给出了一种基于本体论的文本特征选取方法.通过由专业领域本体所建立的概念树,把文本的特征项映射到概念,同时进行了特征项频度到概念频度的转换,使得选取得到的特征概念能够很好表征文本的内容.实验结果表明,与未进行特征概念选取相比,采用此方法选取得到的特征概念能够在尽可能减少对文本分类精度的影响下,达到降低特征维数的目的.
Keyword ：
文本分类 文本分类 文本特征 文本特征 本体 本体 特征选取 特征选取
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| GB/T 7714 | 林东文 , 白清源 , 谢丽聪 et al. 一种基于本体论的文本特征选取方法 [J]. | 计算机科学 , 2008 , 35 (3) : 152-154 . |
| MLA | 林东文 et al. "一种基于本体论的文本特征选取方法" . | 计算机科学 35 . 3 (2008) : 152-154 . |
| APA | 林东文 , 白清源 , 谢丽聪 , 谢伙生 , 张莹 . 一种基于本体论的文本特征选取方法 . | 计算机科学 , 2008 , 35 (3) , 152-154 . |
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