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101.
In this paper, using the theory of topological degree and Liapunov functional methods, the authors study the competitive neural networks with time delays and different time scales and present some criteria of global robust stability for this neural network model. 相似文献
102.
This paper deals with the class of uncertain systems with multiple time delays. The stability and stabilizability of this class of systems are considered. System robustness is also studied when the norm-bounded uncertainties are considered. LMI delay-dependent sufficient conditions for stability, stabilizability, and system robustness are established to check whether a system of this class is stable and/or stabilizable. Numerical examples are provided to show the usefulness of the proposed results. 相似文献
103.
104.
A Direct Approach to Group Decision Making with Uncertain Additive Linguistic Preference Relations 总被引:5,自引:0,他引:5
Zeshui Xu 《Fuzzy Optimization and Decision Making》2006,5(1):21-32
In this paper, we study the group decision-making problem in which the preference information given by experts takes the form
of uncertain additive linguistic preference relations. We define the concept of uncertain additive linguistic preference relation,
and introduce a formula based on possibility measure for comparing two uncertain linguistic preference values. We introduce
some aggregation operators such as the uncertain linguistic averaging (ULA) operator and uncertain linguistic weighted averaging
(ULWA) operator, etc. Based on the ULA and ULWA operators, we develop a direct approach to group decision making with uncertain
additive linguistic preference relations without loss of information. Finally, an illustrative numerical example is given
to verify the developed approach. 相似文献
105.
106.
van den Broek W. A. Engwerda J. C. Schumacher J. M. 《Journal of Optimization Theory and Applications》2003,119(3):565-595
Equilibria in dynamic games are formulated often under the assumption that the players have full knowledge of the dynamics to which they are subject. Here, we formulate equilibria in which players are looking for robustness and take model uncertainty explicitly into account in their decisions. Specifically, we consider feedback Nash equilibria in indefinite linear-quadratic differential games on an infinite time horizon. Model uncertainty is represented by a malevolent input which is subject to a cost penalty or to a direct bound. We derive conditions for the existence of robust equilibria in terms of solutions of sets of algebraic Riccati equations. 相似文献
107.
对稳健回归尺度参数估计的一种改进 总被引:3,自引:0,他引:3
常对线性回归模型的稳健 M估计中 ,尺度参数使用绝对离差中位数 MAD.将 Rousseeuw等人对单变量尺度参数的一种稳健估计 Sn引入到回归问题中 ,讨论了此估计的一些优良性质 ,并通过一个小规模的模拟研究 ,说明使用 Sn比使用 MAD做尺度参数将会较大地提高回归估计的估计效率 . 相似文献
108.
It always takes time for people to digest information and make judgments. The decision maker's preference is not always clear and stable when decision analysis and decision making are performed. In this paper, we introduce a generalized preference structure to cope with indefinite preferences. We describe its general properties, its implication on value function representation, its solution concepts, and methods for obtaining the solutions.This research has been partially supported by NSF Grant No. IST-84-18863. The authors are grateful to Dr. D. J. White for his helpful comments on a previous draft. 相似文献
109.
QIN HUASHU; HONG YIGUANG; MEI SHENGWEI; ZHU QUANMIN 《IMA Journal of Mathematical Control and Information》1998,15(4):397-407
This paper deals with the robust control problem for uncertainnonlinear mechanical systems with ideal and holonomic constraints.A robust control law having the form of state feedback is obtained.The control law consists of two parts: the first one is a nominalcontrol law which affects the behaviour of the nominal dynamicsfor the considered mechanical system; the second one is a learningcontrol law which reduces the influence of uncertainties onthe stability of the mechanical system. Under the action ofthe robust control law, the closed-loop system for the uncertainmechanical system reaches a region specified a short time inadvance. 相似文献
110.
A stability analysis of the equilibrium position for a given class of Hopfield neural networks with time delays is presented. The robustness of the equilibrium stability with respect to variations in the time delays, system parameters, and interconnection matrix is analyzed. Three approaches are presented which account in various ways for stability of the equilibrium with respect to these perturbations.Work conducted while visiting the University of Bremen, supported by the Deutscheforschungsgemeinschaft. 相似文献