查询词典 fuzzy theory

Probability: Studies on the emerged accident probability of major hazard carrying the Markow process; Severity: By applying the grey system theory , on the base of the same kinds of accident-economy cost, establishes self-adapting GM (1,1) forecasting model and the model with the residual error being amended in a bid to calculate accident-economy cost; Safety management: Establishes the dynamic comprehensive analytical method on major hazard and safety management of the major hazard by applying the grey system theory and fuzzy math theory.

其次，针对重大危险源原有的二维评价方法所存在的局限性，建立了以可能性、严重性、安全管理水平为三维矢量的评价方法，并对这三个矢量进行了定量计算：可能性：运用马尔可夫过程计算了重大危险源发生事故的概率；严重性：运用灰色系统理论，根据已有的同类事故经济损失的统计资料，建立自适应性GM(1，1)模型及残差修正的模型，预测重大危险源发生事故的经济损失；安全管理水平：运用模糊数学理论和灰色系统理论，建立了重大危险源安全管理水平动态综合分析法。

Being based on the simulative idea to the adaptive fuzzy control mechanism of human brain, a new and unique no-model adaptive fuzzy control structure is given and relevant theory methods and AFDC system of robot are established in the strategy.

该策略基于模拟人脑的自适应模糊控制功能的设想，从被控机器人近似于黑箱的角度，给出了具有特色的复合无模型自适应模糊控制结构模式，并建立了相应的研究理论、方法和机器人自适应模糊动态控制系统。

Fuzzy controller is designed according to human"s controlling experience of systems. After reducing the operator"s controlling experience to a set of qualitatively descriptive conditional statements, and then quantifying them by using the theory of fuzzy set, the controller can transform the natural language of human"s controlling strategies into the algorithmic language acceptable for the computer, then the controller can receive human"s experience, and imitates humans operating strategies and effectively control some objects that can not be constructed into the mathematical model.

模糊控制控制器是以人对被控系统的控制经验为依据而设计的，它把操作人员的控制经验归纳成定性描述的一组条件语句，然后运用模糊集合理论将其定量化，把人的控制策略的自然语言转化为计算机能够接受的算法语言所描述的控制算法，使控制器得以接受人的经验，模仿人的操作策略实现对一些无法构造数学模型的被控对象进行有效的控制。

On this basis, according to historical data, apply ANN and differential simulation method to get the quantitatively correlative relations between each production and its own influence factors, and introduce the new methods of prediction for dynamic indexes with gas-field development (The combinatorial prediction method based on fuzzy comprehensive evaluation, the method of ANN to select optimally combinatorial prediction models and the ANN prediction method based on genetic algorithm).(2) Base on mathematical programming, combine with quantitative economics and techno-economics, introduce economical indexes to establish production"s distribution optimal model, production"s constitution optimal model and measured production"s constitution optimal model, including multi-objective models and five-years models. Upon this, the optimal project for all gas field and each gas-collected factory can be got. Also, introduce the time value of capitals to improve on these models.(3) Base on the optimal solution theory and algorithm theory for the nonlinear programming problem, introduce the SUMT algorithm and genetic algorithm to study how to solve the models, and on the basis of normal genetic algorithm, make use of auto-adaptively modulating method to improve on normal genetic algorithm; Base on algorithm"s convergence theory and calculation"s complexity theory to analyze seriatim SUMT algorithm"s convergence and genetic algorithms convergence, and compare performance with each other.

在此基础上，利用神经网络方法和微分模拟方法根据历史数据得到各分项产量与其影响因素之间的定量关联关系，并引入气田开发动态指标新的预测方法(基于模糊综合评判的组合预测方法、神经网络优选组合预测模型预测方法以及基于遗传优化的神经网络预测方法)；(2)以数学规划为基础，结合数量经济学和技术经济学，引入经济指标建立产量分配优化模型、产量构成优化模型、措施产量构成优化模型、气田开发多目标规划模型以及五年规划模型，进而获得全气田及各采气厂的最优方案，并引入资金时间价值对五年规划模型进行改进；(3)以非线性规划问题的最优解及算法理论为基础，引入SUMT算法以及遗传算法对模型的求解进行研究，并在原有的遗传算法基础上，引入自适应调整方法对遗传算法进行改进；以算法的收敛性理论和计算复杂性理论为基础，逐一分析SUMT算法以及遗传算法的收敛性，并比较三种算法的优劣性。

The typical methods include Weighted mean, Bayes estimation, Dempster-Shafer evidence, Decision statistics model theory, Condition event algebra theory, Dynamic Kalman filter, Fuzzy logic theory, Neural network theory and Artificial intelligence technology.

近年来，国内外学者提出了许多对多传感器组合定位系统的数据融合方法，讨论较多的有加权平均法、贝叶斯估计法、Dempster-Shafer证据法、决策统计模型法、条件事件代数法、Kalman滤波、模糊数学、神经网络以及人工智能方法等。

In this thesis, the author combined system engineering theory and fuzzy mathematics with water-power engineering, by the research of fuzzy mathematics and risk analysis technique, the application of fuzzy comprehensive evaluation and risk analysis technique in the decision of construction period and selection of different schemes is discussed. And the proposed analysis technique is validated by the application of practical engineering.

本文将系统工程理论及模糊数学理论与水利水电工程实际相结合，通过对模糊数学和风险分析技术的研究，讨论了模糊综合评判法和风险分析技术在大型水利工程工期论证和方案选择中的应用问题，并结合具体工程中的实际应用，说明该种分析技术可为同类工程借鉴和应用，具有较好的应用前景和价值。

Based on conventional fuzzy control theory, an analysis of triangular partition fuzzy control is given to present several properties of TPFC: the fuzzy approximation mechanism, the approximation accuracy, entropy equalization, zero-error reconstruction and interpolative reasoning.

在研究经典模糊控制的基础上，本文分别从近似机理、精度分析、等熵设计、无偏差重构以及插值推理等不同角度对三角划分模糊控制进行了较系统的分析与研究，得出了用于HIFC设计与学习的一些重要结论。

The paper analyzes the data features of fuzzy relational database on the basis of fuzzy set theory, and gives the formulized description of fuzzy relation.

模糊关系数据库的研究和应用还处于试验阶段，有关模糊关系数据库的概念模型、模糊数据的特点及其关系也尚无定论。

Therefore, the investigate will combine the fuzzy logic theory and the approach of the sliding mode control to design three fuzzy-hierarchical controllers for the inverted pendulum-cart system with the nonlinearity friction and the limitations on the control action,, and the rail length,. Furthermore, it also adopts the adaptive mechanism to enter into three controllers above to design three adaptive-fuzzy-hierarchical controllers.

因此，研究中将在轨道长度与控制命令受限制之情况下，利用模糊逻辑控制理论结合顺滑模式控制之方式，针对具有非线性摩擦力之360°倒单摆-滑车系统设计出三组模糊阶层化倒单摆-滑车控制系统；最后又引入适应性学习机制针对输出模糊集合单值参数进行设计，另外建立出三组适应性模糊阶层化倒单摆-滑车控制系统。

Then, use the fuzzy control theory and design a boiler steam dome water level fuzzy control system, have realized the fuzzy dynamic feedforward , through making emulation in simulink, have reached better control effect.

于是，应用模糊控制理论，设计出一个锅炉汽包水位模糊控制系统，实现了模糊动态前馈，通过在simulink下仿真，达到了较好的控制效果。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。