基于粗集推理的大坝安全监测预报模型研究

针对传统大坝安全监测预报模型存在的受环境量相关性影响较大和网络训练时间长、易收敛到局部最优点等缺点,通过对原始监测信息的粗糙集预处理提取主要影响因素和决策规则集,并通过对规则集的不确定性推理建立了大坝监测的粗集预报模型,与传统方法相比,粗集预报模型不依赖于具体的数学模型,所得到的预报值是一定可信度下的区间值,并且预测值区间与实测值区间基本一致．     

基于覆盖性和适应度的CBR实例库维护

针对实例推理（CBR）系统中实例无限增加会导致实例库冗余和实例检索效率降低,从而使系统总体性能下降的问题,对现有的实例库维护方法进行了分析,给出了基于实例覆盖性的实例保存策略,以此来限制实例库的无限扩大,进而提出以实例适应度函数对实例在实例库中的存在性进行描述,精简实例库中适应性差的实例,从而优化了实例库的存储结构,提高了系统性能．最后以冲裁模具实例库的维护为例,验证了上述方法的合理性和有效性．     

空间推理研究的方法学

概述了空间推理研究的内容,关键问题的基本方法,从基本原则,形式框架,研究步骤,表示体系和推理框架等五个方面提出了空间推理研究的方法学,结合实际研究案例阐述了该方法的合理性与有效性。最后指出了空间推理研究的进一步工作和方向。     

基于案例推理的区间属性相似度研究

分析了传统的实例检索策略的不足,提出了一种区间属性值之间相似度的计算方法．该方法是通过计算长度重叠率或面积重叠率来计算其相似程度．所提出的方法可以有效地处理实例检索中的不确定性,并能提高基于实例推理系统的性能。     

计算机辅助质量检验

质量检验是企业控制和改进生产的重要信息来源。本文给出了关于开发自动检验计划制定和计算机辅助检验应用系统的研究，即开发自动检验计划制定和计算机辅助检验方面的应用系统。     

NONMONOTONIC TRUST REGION PROJECTED REDUCED HESSIAN ALGORITHM WITH TWO-PIECE UPDATE FOR CONSTRAINED OPTIMIZATION

This paper proposes a two-piece update of projected reduced Hessian algorithm with nonmonotonic trust region strategy for solving nonlinear equality constrained optimization problems. In order to deal with large problems, a two-piece update of twoside projected reduced Hessian is used to replace full Hessian matrix. By adopting the Fletcher's penalty function as the merit function, a nonmonotonic trust region strategy is suggested which does not require the merit function to reduce its value in every iteration. The two-piece update of projected reduced Hessian algorithm which switches to nonmonotonic trust region technique possesses global convergence while maintaining a two-step Q-superlinear local convergence rate under some reasonable conditions. Furthermore, one step Q-superlinear local convergence rate can be obtained if at least one of the update formulas is updated at each iteration by an alternative update rule. The numerical experiment results are reported to show the effectiveness of the propo     

主体间的互动性与多主体认知推理模型的建构

认知往往是多个主体间相互作用的活动,建立多主体认知推理模型就必须考虑主体间互动问题.为此我们需要区分团体知识与公共知识,需要借助博弈论方法分析描述主体认知的动态性.这就使多主体认知推理模型的建立面临许多需要解决的技术问题.     

A New Mechanism for Transfer Between Conceptual Domains in Scientific Discovery and Education

Confronted with problems or situations that do not yield toknown theories and world views, scientists and students are alike. Theyare rarely able to directly build a model or a theory thereof. Rather,they must find ways to make sense of the circumstances using theircurrent knowledge and adjusting what is recognized in the process. Thisway of thinking, using past ways of perceiving the physical world tobuild new ones does not follow a logical path and cannot be described astheory revision. Likewise, in many situations it is awkward, indeedoften impossible, to resort to analogical reasoning to account for it.This paper presents a new mechanism, called `tunnel effect', that mayexplain, in part, how scientists and students reason while constructinga new conceptual domain. `Tunnel effect' is also contrasted withanalogical reasoning.     

基于模糊推理的多模导引头数据融合模型研究

本文应用模糊集理论，提出了一种基于模糊推理的多模导引头准判决级数据融合模型，给出了模型中参数的选取方法。该模型的特点是融合规则灵活，能兼顾系统的检测性能和抗干扰性能，能较好地处理系统各探测器获取信息的冲突性。     

Reverse triple I method of restriction for fuzzy reasoning

A theory of reverse triple I method of restriction for implication operator R0 is proposed.And the general computation formulas of infimum for fuzzy modus ponens and supremum for fuzzy modus tollens of a-reverse triple I method of restriction are obtained respectively.