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Research on Medical Diagnostic Decision-making Based on Attribute Reduction and Support Vector Machines

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Research on Medical Diagnostic Decision-making Based on Attr...

第五届全球智能控制与自动化大会会议

作者： Zhonghui Hu Yuangui Li Yunze Cai and Xiaoming XuDepartment of automation shanghai jiaotong university shanghai 200030 P. R. China

＜正＞ The method of attribute reduction is applied to medical diagnostic decision by combining basic theory of support vector machines for nonlinear classification. Decision-making performance of the proposed method is compared with that of the conventional methods. The results indicate our method can decrease the computation complexity and memory requirement a lot, particularly for the large and high dimension data set. Furthermore, the decision-making power remains still good.

关键词： Attribute Reduction Support Vector Machine Medical Diagnostic Decision

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单播与多速率组播共存网络中的公平资源分配

系统工程与电子技术 2004年第2期26卷 253-257,263页

作者：董谦谢剑英上海交通大学自动化系上海200030

以最大化网络用户效用值为目标,考虑组播接收者的异构性,将单播和组播任务纳入统一的凸规划模型研究,并应用惩罚函数法推导出一种启发式速率控制算法。该算法在IP网络中分布式实现时,路由器使用RED算法标记报文,反馈拥塞信息;用户端提... 详细信息

以最大化网络用户效用值为目标,考虑组播接收者的异构性,将单播和组播任务纳入统一的凸规划模型研究,并应用惩罚函数法推导出一种启发式速率控制算法。该算法在IP网络中分布式实现时,路由器使用RED算法标记报文,反馈拥塞信息;用户端提取拥塞信息计算最优速率,并作相应更新。通过选择合适的算法参数及效用函数,单播与组播将依据比例公平性准则共享网络资源。仿真结果验证了该算法的有效性。另外,还分析了多速率组播分层实现时,不同的带宽离散化密度对资源分配公平性的影响。

关键词：计算机网络多速率组播单播公平性资源分配速率控制

一类带缓冲区的混合Flowshop生产过程的Makespan生产调度

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上海交通大学学报 2000年第12期34卷 1667-1671页

作者：徐智韩兵席裕庚上海交通大学自动化研究所上海200030

就最早完工 (Makespan)指标为一类带缓冲区的混合 Flowshop生产过程建立调度模型 .针对混合生产过程调度的缓冲区及生产能力约束 ,定义由连续生产过程为离散加工而生产半成品原料所需的延迟时间为预备时间 .假设在预备时间不为零时 ,判... 详细信息

就最早完工 (Makespan)指标为一类带缓冲区的混合 Flowshop生产过程建立调度模型 .针对混合生产过程调度的缓冲区及生产能力约束 ,定义由连续生产过程为离散加工而生产半成品原料所需的延迟时间为预备时间 .假设在预备时间不为零时 ,判定原调度结果是否仍保持最优 ,并给出将原调度结果作为次优调度时的误差范围 .

关键词：缓冲区混合生产过程预备时间

Actuator Fault Detection for Sampled-Data Systems in H_∞ Setting

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Journal of shanghai jiaotong university(Science) 2005年第2期10卷 131-134页

作者：杨晓军翁正新田作华 Dept. of automation Shanghai Jiaotong Univ. Shanghai 200030 China

Actuator fault detection for sampled-data systems was investigated from the viewpoint of jump systems. With the aid of a prior frequency information on fault, such a problem is converted to an augmented H_∞ filtering problem. A simple state-space approach is then proposed to deal with sampled-data actuator fault detection problem. Compared with the existed approaches, the proposed approach allows parameters of the sampled-data system being time-varying with consideration of measurement noise.

关键词： sampled-data systems fault detection actuator Riccati equation

Satisfactory Optimization control in Fuzzy Dynamic Environment for Complex Systems

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Satisfactory Optimization Control in Fuzzy Dynamic Environme...

第十九届中国控制会议

作者： Yugeng Xi Shaoyuan Li Institute of automation, shanghai jiaotong university 1954 Hua Shan Road, shanghai 200030, P.R.China

＜正＞This paper presented a satisfactory optimization algorithm for complex industry process in the fuzzy uncertain environment. Under the framework of predictive control, this algorithm transfers the optimal problem with fuzzy boundary constraint in a finite horizon into the equivalent definite programming, and the optimal objective is the direction that makes the satisfactory degree increase in which the satisfactory degree depends on the system constraints, and the decision-maker will have more freedom compared to the standard predictive control.

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Predictive control Based on Fuzzy Goals and Fuzzy Constraints

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Predictive Control Based on Fuzzy Goals and Fuzzy Constraint...

第十九届中国控制会议

作者： Shaoyuan Li Yugeng Xi Institute of automation, shanghai jiaotong university 1954 Hua Shan Road, shanghai 200030, P.R.China

＜正＞This paper investigates the use of fuzzy decision making in predictive control, the use of fuzzy goals and fuzzy constraints in predictive control allows for a more flexible aggregation of the control objectives than the usual weighting sum of squared errors. Compared to the standard quadratic objective function, with the fuzzy decision making approach, the designer has more freedom in specifying the desired process behavior.

关键词： fuzzy predictive control fuzzy goals fuzzy constraints optimization

RESEARCH ON DISPATCH NETWORK USING HYBRID STRATEGY WEBGIS

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RESEARCH ON DISPATCH NETWORK USING HYBRID STRATEGY WEBGIS

2002年IEEE十区计算机、通信、控制和电机工程会议

作者： WENG Ying-jun TIAN Yong-qing ZHU Zhong-ying Department of automation, shanghai jiaotong university China 200030

This paper introduced the geographic informationsystem (GIS) techniques, especially about how to imegrate Weband GIS technology to browse and analyze spatial ***, three kinds of resolving plane for WebGIS in Internet woreanalyzed;and their advantages and disadvantages discussed ***, a proto type of a GIS application, which was based onthe hybrid strategy using Windows DNA architecture, fordispatch of distribution network control was desofibed. Thesystem's designing was presented in details. The testing result isshown at last, and conclusions are based on it.

关键词： Open GIS Internet ActiveX WebGIS

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预测控制拟等效集结的仿真研究

系统仿真学报 2009年第20期21卷 6547-6551页

作者：姜舒席裕庚李德伟上海交通大学自动化系上海200240

由于实际系统中通常存在约束,如何保证预测控制集结策略在有约束系统中的控制质量,对于集结策略的实际应用有着重要意义。这里通过对预测控制拟等效集结策略进行仿真分析,提出了一种确定拟等效集结策略中参数取值的算法。应用该算法,可... 详细信息

由于实际系统中通常存在约束,如何保证预测控制集结策略在有约束系统中的控制质量,对于集结策略的实际应用有着重要意义。这里通过对预测控制拟等效集结策略进行仿真分析,提出了一种确定拟等效集结策略中参数取值的算法。应用该算法,可以使基于拟等效集结的预测控制器对于有约束系统在降低在线计算量的同时保证系统的控制质量,进而达到近似等效的目的。

关键词：预测控制集结策略拟等效集结控制质量

H2 Guaranteed Cost Output-Feedback control for Discrete-Time Fuzzy System

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H2 Guaranteed Cost Output-Feedback Control for Discrete-Time...

第二十七届中国控制会议

作者： Yang Zhong 1,Yang Yupu 1,Li Wei 1 Department of automation,shanghai jiaotong university,shanghai 200240,P.R.China

This study deals with H2 guaranteed cost control problem for discrete time nonlinear systems with parameter *** Takagi and Sugeno（T-S） fuzzy model with parameter uncertainties is employed to represent an uncertain discrete time nonlinear *** on the structural information in rule base,an output feedback controller design method is *** conditions for the existence of H2 guaranteed cost output feedback controllers are *** more,a convex optimization problem with linear matrix inequality（LMI） constraints is applied to design the suboptimal H2 guaranteed cost output feedback controller which minimizes the guaranteed cost of the closed-loop uncertain *** example is given to demonstrate the effectiveness of the proposed method.

关键词： Discrete-time fuzzy system Linear matrix inequality(LMI) H2 guaranteed cost Output feedback control