At last the fuzzy analysis model that consider on the flood control risk of reservoir and benefit was formulated and a better flood limit water level was chosen 最后构造了考虑水库防洪风险和兴利效益两个目标的模糊分析模型,优选了汛限水位。
The summer flood season was subdivided into main flood season and post - freshet season by many methods such as the mathematical statistics method and fuzzy analysis method . the flood control risk in spring was analyzed by the qualitative analysis 本文根据洪水出现时间,将水库的汛期分为春汛和夏汛,并采用成因分析、数理统计、模糊分析等方法又夏汛细分为主汛期和后汛期。
It can be learnt from the decision - making process that many project designs involving the similar problems in harbor engineering can be adopt fuzzy analysis technique to quantify fuzzy factors and provide fundament and methods for scientific decision - making 从过程来看,港口工程中类似问题的许多方案设计均可采用模糊分析以达到量化的目的,为科学化决策提供依据和方法。
The new ways that solve multiple objectives decision making under risk into probability permanent type : decision making diagram method , matrix analysis method , multiple objectives markov method , the shortest distance method , successive type variation multiple objectives decision making under risk method and fuzzy analysis decision making method . 3 . the new modes that solve multiple objectives decision making under risk into probability interval type and uncharted type : weighted method and sorting method 4 the new repent average value criterion that handle multiple objectives decision making under risk into probability uncharted type and generalizing the criterions that have been used into one objective decision making under probability into uncharted type to multiple objectives decision making under probability into uncharted type . 5 . giving the error analyses method and decision result regulating method that been used into multiple objectives decision making under risk 2 、探讨了‘决策图法’ 、 ‘矩阵法’ 、 ‘多目标马尔科夫法’ 、 ‘最小距离法’ 、 ‘连续型变量的多目标风险型决策法’和‘模糊分析决策法’等解决概率固定型的多目标风险型决策的新方法。 3 、探讨了‘加权法’ 、 ‘排序法’两种解决概率区间型和未知型的多目标风险型决策的方法; 4 、在概率未知型的多目标风险型决策中改进了‘后悔值准则’ ,提出了‘后悔均值准则’ ;并将单目标概率未知型风险型决策的准则推广运用到多目标概率未知型的风险型决策中去; 5 、探讨了多目标风险型决策方法误差分析及决策结果值调整的方法。
Study work mainly is : part one , look back and look ahead the financial development history and present situation that derives market and the futuristic tendency , summarize domestic and international theory and method about venture capital investment , discuss establishment and develop the financial necessariness and important meaning of our country that derives market ; part two , establishthe relation between investment risk and the radom expectation effectiveness of investor ? verage stochastic dominance of asset profit ; part three , covari - ance matrix in mean - variance model is analysed with sensitivity analysis and fuzzy analysis ; part four , have looked back the concept of option , the price relation of option and black - scholes option price formula , have put forward option price formula of the discounted value of option present value ; part five , have looked back the financial concept and its classfication that financial derivatives risk , have summarized financial risk management theory , measured and assessed methods of financial derivatives risk 主要研究工作为:第一章,回顾和展望金融衍生市场的发展历史、现状和未来,综述国内外关于风险投资的理论与方法,论述建立和发展我国金融衍生市场的必要性及重要意义;第二章,建立投资者的随机期望效用与投资风险之间的关系? ?平均随机占优;第三章,均值方差模型协方差矩阵的灵敏度分析与模糊分析;第四章,回顾了期权的概念、期权的价格关系和black - scholes期权定价公式,提出了欧式看涨期权价格的折现值所满足的微分方程;第五章,回顾了金融衍生品风险的概念及其分类,总结了金融衍生品的风险管理理论和金融衍生品风险计量和评估方法。
Aiming at four analysis measures - spectrometric , ferro graphic , routine , and particulate counting , the author has established time - sequence model based on fuzzy estimation regulations , tentatively provided analysis standard criterion for failure analysis , and proposed fuzzy systematized model for diagnosis system of lubricant monitoring expert ; employing mathematical methods of fuzzy analysis , the author has established analytical synthetic evaluation model , analyzed the reasonability of analytical measures in lubricating oil and equipment condition evaluation , and provided extraction method model of information regulations for diagnosis system of lubricant monitoring expert by means of analyzing par ameters 针对光谱、铁谱、常规理化、颗粒计数四种分析手段,建立了基于模糊判断规则的时序模型,并建立了轮机油液监控专家诊断系统所需的模糊分类器模型;采用模糊分析的数学方法,建立了综合分析评判模型,并对各分析手段在润滑油评定和评判设备状态时的合理性进行阐述,为轮机油液监控智能诊断专家系统提供了一种通过特征参数分析与处理,建立的规则信息提取方法和模型。
Put above hypotheses together we can propose a comprehensive solving alternative to in hence decision making effectiveness for agricultural project investment : to build fuzzy analysis hierarchy process based on entropy and fuzzy multi - attributes decision making models in the model base of agricultural project investment gdss . we can to adopt group advices and experiences , promote the opinion integration and improve the solving methods of ill - structured problems that supported by group decision support system 按照这一概念框架,作者提出提高农业项目投资群体决策效果的整体解决思路:建立基于熵权的模糊层次分析法,以及模糊多属性群体决策模型的农业项目投资群体决策支持系统模型库;通过群体决策支持系统的支持,充分考虑决策群体的决策思想及经验,促进意见集结,改进结构不良问题的解决。
Three characteristic features , such as average velocity of sound , deviation coefficient of sound velocity , and deviation coefficient of amplitude are extracted from four kinds of testing data which are sound velocity , amplitude , frequency and waveform in this paper . fuzzy analysis and artificial neural network are combined to form an intelligent system with similar functions to human brain to classify grc , aerated concrete , hollow brick , solid brick and concrete block . the accuracy of this system is up to 95 % in field tests 由超声脉冲法获得4种检测信息声速、波幅、频率和波形,从中提取3个特征量:平均声速、声速的离差系数和波幅的离差系数,利用模糊分析方法和人工神经网络相结合对grc 、加气混凝土、空心砖、实心砖、砌块5种墙体材料进行种类识别,形成一个智能化的、具有类似人脑功能的系统.经现场实测证明,判别的准确率达95 %以上。