查询词典 fuzzy set

This paper researches the basic principle of fuzzy retrieval on multimedia data semantics, designs a fuzzy reasoning mechanism of Agent knowledge base, puts the fuzzy algorithm wich reasoning is forward or backword,and relevant implementation is presented as well.

引 言目前计算机科学的许多研究正沿着&智能化&的方向发展，多媒体数据库的复杂查询正面临着新的挑战〔1〕。因此，将语义学、多 Agent系统、知识库、模糊理论、人工智能等领域知识综合，运用于多媒体数据库数据语义的模糊检索，有着极其重要的研究意义。

A new fuzzy Kohonen clustering network is proposed which integrates Fuzzy c-Means model as the fuzzy control mechanism into the learning rate and updating strategies of Kohonen network.It effectively overcomes the shortcomings which occur during clustering network parameters are adjusted heuristically The numerical results show improved convergence as well as reduced clustering errors.

本文提出了一种新的模糊Kohonen聚类网络，它将模糊c-均值作为模糊控制机制结合到Kohonen网络学习和更新策略中，有效地解决了经典Kohonen聚类网络中学习参数启发式调整的缺点，仿真结果表明网络的收敛性和分类结果都得到了很大改善。

In this dissertation, as for some problems in flood forecast andreservoir regulation, the research had been done based on the special research topic dynamiccontrol on limit water level in flood season using theories of fuzzy optimizing theory,maximum entropy theory, entropy-weighted multi-objective decision making method, geneticalgorithm etc. And the research focused on evaporation calculation, fuzzy description ofcatchraent impoundage, fuzzy similarity calibration method, nolinear watershed concentrationmodel and error distribution maximum entropy model and risk computation of dynamiccontrol reservoir water level in flood season when the flood forecast and precipitation forecastare taken into consideration.

本文从洪水预报和汛限水位动态控制两个研究方向着手，以汛限水位动态控制研究专题的试点水库为工程背景，运用模糊优选理论、极大熵理论、熵权多目标决策法、遗传算法等理论，研究了蒸散发计算和流域蓄水容量的模糊描述、洪水预报模型参数的模糊相似校正方法、流域非线性汇流模型、误差分布的极大熵模型以及考虑洪水预报和降雨预报动态控制水库汛限水位的风险计算方法。

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。

With the development of the fuzzy math,people used to accurate mathematical method to study fuzzy problem and unify accurate method and fuzzy mothed.

随着近年来数据挖掘技术的发展，聚类分析越来越多地用于大量的未知类别数据的分类。

An adaptive fuzzy control system for 300kA prebake aluminum production cells was designed, which includes the sampling, transmission and pretreatment of the parameters, the database and fuzzy logical determination, the parameter recognition and adaptivity of the fuzzy rule and actuor.

摘 要：采用自适应模糊技术，设计了300kA预焙槽电解质温度和初晶温度的控制系统。该系统包括参数采集，参数网络传输和参数预处理，专家知识规则库、模糊逻辑决策，参数辨识、模糊规则自适应，人机界面和执行机构等模块。

An adaptive fuzzy control system for 300kA prebake aluminum production cells was designed,which includes the sampling,transmission and pretreatment of the parameters,the database and fuzzy logical determination,the parameter recognition and adaptivity of the fuzzy rule and actor.

该系统包括参数采集，参数网络传输和参数预处理，专家知识规则库、模糊逻辑决策，参数辨识、模糊规则自适应，人机界面和执行机构等模块。

To simplify the comparison of symmetrical triangular fuzzy numbers, through the analysis to the satisfactory degree function of fuzzy numbers presented by Tanak, a simple and convenient formula for comparing two symmetrical triangular fuzzy numbers is presented, and the limitation of the formula presented by Liu Xinwang is proved.

为简化正规三角模糊数的比较。通过分析Tanaka提出的模糊数比较的满意度函数，得到了2个正规三角模糊数比较的简便公式；指出了刘新旺提出的模糊数比较公式的局限性。

In order to overcome the large delay and the uncertainty of the system, a P-Fuzzy-PID controller with fuzzy switching based on fuzzy rules is applied to the aircraft deicing vehicle heating system.

理论分析和仿真结果表明，应用这种方法所设计出的飞机除冰车加热系统，在稳定时间和稳态精度方面均优于单一的PID控制和模糊控制。

This paper analyses some typical fuzzy problems in the faults diagnosis with the fuzzy mathematics, and prcsents the fuzzed representation of rules and the way of fuzzy multi-criteria analysis on which the uncertain prob-lems can properlybe solved.

运用模糊数学理论分析了故障诊断中若干具有代表性的模糊性问题，提出了采用规则的模糊化表示和模糊综合评判的方法可以有效的解决某些不确定问题。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。