Decision Making Under Risk: A Comparison of Bayesian and Fuzzy Set Methods

A classical decision problem is considered where a decision maker is to choose one of a number of actions each offering different consequences. The outcome from a choice of action is uncertain because it depends on the existing state of Nature. Also, the outcome, once an action and state of Nature are specified, may be a vector or a random vector. The decision maker employs both Bayesian methods and fuzzy set techniques to handle the uncertainties. The decision maker is also allowed to use multiple, possibly conflicting, goals in order to determine his best strategy. The Bayesian method produces a set of undominated strategies to choose from, whereas the fuzzy set technique usually produces a unique optimal strategy.     

一种多模态自适应模糊控制器

提出了一类基于三种控制策略的多模态自适应控制方法,通过在线获取对象的有关信息对各控制策略中的相应参数和规则进行修正,以期在复杂工况下提高被控系统的性能——鲁棒性。仿真试验研究证实了方法的有效性。     

简析矛盾修辞

在语言表达时,并不要求处处以逻辑为本,逻辑只是修辞的基础。有时为了表达的需要,在特定的语言环境中可以故意制造矛盾,即把通常相互对立、相互排斥的两个概念或判断巧妙地联系在一起。这种修辞方式叫矛盾修辞或相反相成。有四种常见的形式:语义矛盾的主谓结构,语义矛盾的偏正结构,语义矛盾的并列结构,语义矛盾的上下句。矛盾修辞可以用于议论说理、叙述描写和抒情等多种表现手法中。     

量子阱光电子开关器件(二)

量子阱半导体器件是一种基于量子电子学原理的新型光电子器件。它具有体积小、速度快、功耗低等优点,并且由于它能够与逻辑电路元件混合集成,在解决高复杂度集成电路的高速互连方面具有巨大的实际应用价值。基于这一原理实现的光调制器和开关等光电子器件,可以制成波导,也可制成二堆并行阵列器件。目前,光逻辑和存贮器件阵列的集成规模已达2048个单元,其中所有的单元都可利用自由空间光(free-space optics)进行外部访问。本文概述了量子阱半导体器件的运行机理及其发展前景。     

技能型人才隐性人力资本的测定与价值研究——基于吉林省汽车制造业的实证分析

技能型人才由于其技能和知识的特点,所具有的人力资本相对于一般人力资本和管理人力资本显示出不同的特点,隐性人力资本占有很大的比例。技能型人才隐性人力资本是指通过长期工作经验的积累所掌握的难以模仿、能够创造价值的隐性知识、技能、诀窍等,以及由其技能关系所具备的社会关系资本和情感资本,是企业持续竞争优势的重要来源。利用数学中的模糊综合评判法对吉林省汽车制造业技能型人才的隐性人力资本进行测定,并对其经济价值进行实证验证,具有一定的理论与现实意义。     

Grey Predictive Process Control Charts

The present article intends to develop some imputation methods to reduce the impact of non response at both the occasions in two-occasion successive (rotation) sampling. Utilizing the auxiliary information, which is only available at the current occasion, estimators have been proposed for estimating the population mean at the current occasion. Estimators for the current occasion are also derived as a particular case when there is non response either on the first occasion or second occasion. Behaviors of the proposed estimators are studied and their respective optimum replacement policies are also discussed. To study the effectiveness of the suggested imputation methods, performances of the proposed estimators are compared in two different situations, with and without non response. The results obtained are demonstrated with the help of empirical studies.     

Improving TAIEX forecasting using fuzzy time series with Box–Cox power transformation

Box–Cox together with our newly proposed transformation were implemented in three different real world empirical problems to alleviate noisy and the volatility effect of them. Consequently, a new domain was constructed. Subsequently, universe of discourse for transformed data was established and an approach for calculating effective length of the intervals was then proposed. Considering the steps above, the initial forecasts were performed using frequently used fuzzy time series (FTS) methods on transformed data. Final forecasts were retrieved from initial forecasted values by proper inverse operation. Comparisons of the results demonstrate that the proposed method produced more accurate forecasts compared with existing FTS on original data.     

论模糊数学在假设检验中的应用

文章通过对隶属函数的集中度系数确定的探讨,将模糊数学应用于贝叶斯统计学,从而形成了一种新的假设检验方法.     

MUX級联网络的組合設計

利用MUX级联网络实现多变量逻辑函数时,为求得最简的级联系统,本文提出了利用剩余函数立方图求取变量划分的快速方法。该法无需借助卡诺图,也不需要进行复杂的运算。结果表明,该法行之有效而且十分方便。