查询词典 fuzzy

A simple artificial immune network algorithm, suitable for clustering problems with a small quantity of samples, is obtained by using the idiotype immune network. Further, a fuzzy immune network classification algorithm applied to sample classification learning is proposed by uniting the algorithm and fuzzy logical rules.

其次，利用抗原群及抗体群的作用关系，结合免疫记忆细胞的记忆功能，并借助于克隆选择原理、免疫网络的调节机制及约束条件处理方法，设计约束多目标优化免疫算法处理约束多目标优化问题，收敛性论证、性能测试、比较及实际应用表明此算法是有效的。

In order to increase the diversity of population, MFCMGA uses idiotypic immune network theory to improve the selection operator of SGA. Meanwhile in order to decrease the randomicity of SGA, the crossover probability, crossover position and mutation probability are adjusted dynamically by using fuzzy inference, which is based on analyzing the heuristic fuzzy relationship between algorithm performance and evolutionary parameters from the viewpoints of environment, population, individual and gene.

该算法利用免疫系统独特性网络学说，改进标准遗传算法选择运算子，提高了种群多样性；同时从环境、种群、个体和基因角度，全面分析算法寻优性能和各种进化参数的启发式模糊关系，采用模糊推理动态调整交叉率、交叉位置和变异率，减小了标准遗传操作的随机性。

In the bid to increase the diversity of population, MFCMGA uses idiotypic immune network theory to improve the selection operator of SGA. Simultaneously, in order to decrease the randomicity of SGA, the crossover probability, crossover position and mutation probability are adjusted dynamically by using fuzzy inference, which is based on analyzing the heuristic fuzzy relationship between algorithm performance and evolutionary parameters from the viewpoints of environment, population, individual and gene.

该算法利用免疫系统独特性网络学说，改进标准遗传算法选择算子，提高了种群多样性；同时从环境、种群、个体和基因角度，全面分析算法寻优性能和各种进化参数的启发式模糊关系，采用模糊推理动态调整交叉率、交叉位置和变异率，减小了标准遗传操作的随机性。

Impoundage;; fuzzy description;; fuzzy similarit calibration;; time-variable instantaneous unit hydrograph;; error distribution;; maximum entropy;;dynamic control on reservoir water level in flood season;; risk analysis

论文导师周惠成，论文学位博士，论文专业水文学及水资源论文单位大连理工大学，点击次数 1，论文页数 141页File Size8592K

This algorithm integrates the fuzzy logic and the sliding mode control. By this method, the control incontinuity is smoothed in a thin band of the switching plane so that the vibration of fuzzy sliding mode control is eliminated.

该算法将模糊逻辑和变结构控制结合起来，利用模糊方法，在切换面临近的一个薄边界层内对控制的不连续性加以平滑，以减弱变结构控制产生的抖振。

fuzzy clustering ; increasable algorithm ; fuzzy c-means clustering algorithmFCM

增量式的模糊聚类算法可以解决新增数据的聚类及类属。

The notion of weak fuzzy similarity relations,a generalization of fuzzy similarity relations,is used to represent indiscernibility of elements.

为此提出用模糊相似关系和弱模糊相似关系的概念来代替等价关系，同时引入了弱模糊相似关系的相似度概念和相似类概念，定义了基于弱模糊相似关系的广义粗糙集及标准的广义粗糙集上下近似；研究了两对上下近似算子的性质，讨论了3种粗糙隶属函数的性质并验证了它们的性质。

A fuzzy indiscernibility relation is changed into the indiscernibility relation by using a λ-cut in the rough approximation of decision classes, and an extension of VPRS method is proposed in which probabilistic rules are obtained from fuzzy decision tables.

为了从模糊近似空间中获取用于概率决策的规则，在决策类的粗糙近似中，通过应用λ-截集，将模糊不可分辨关系转化为等价关系，提出一种可从模糊决策表中获取概率规则的扩展变精度粗糙集方法。

The method of fuzzy interpolative reasoning based on the proportion of vertex and inflection point of Gaussian-type membership function was presented, which provided a useful tool for fuzzy interpolative reasoning.

本文在线性插值推理方法的基础上，给出一种基于高斯型隶属函数的顶点和拐点距离比的模糊插值推理方法。这为模糊插值推理又提供了一个十分有用的工具。

Integrating fuzzy logic control and sliding mode control, a new design method of fuzzy sliding mode control ler is introduced.

将模糊逻辑控制与滑模控制相结合，给出了一种模糊滑模控制器的设计方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。