查询词典 generalized distance

New type of fuzzy clustering model, based on least sum of entropy and generalized distance of weight, has been put forward. Weight of indexes is considered in the model.

4提出了基于模糊熵及权广义距离之和最小的新型的模糊聚类模型，该模型考虑了指标的权重。

The optimal scheme is gained by taking the generalized distance as objective function and the scheme performance requirements as constraint conditions.

该模型定义了方案功能载体间的广义距离，以广义距离函数作为方案组合优化的目标函数，以方案的性能要求作为约束条件进行优化并获得方案的最优解。

Then, utilizing the generalized distance difference of signal and noise to the anticipant signal, a novel detection algorithm is presented through polarization accumulation. In this paper, detect performance of radar system is improved obviously and more than 10dB.

在此基础上，利用信号和噪声的IPPS到期望点广义距离之间的差异，基于极化积累的思想，提出了一种基于IPPS的微弱信号检测算法，仿真结果表明该文算法可以实现10dB以上的性能改善。

Firstly, the descriptions of Instantaneous Polarization Projection Sequences of signal and noise are presented and statistics of generalized distance between random EM wave and the anticipant signa are derived.

首先给出了目标散射信号和随机极化波的瞬态极化投影序列表征方法，导出了随机极化波的IPPS到期望点广义距离的统计特性。

The similarity measure of the clustering objects heavily affects the cluttering result, so the author studies the problems about similarity measure, and proposes a generalized distance.

聚类对象的相似性度量对聚类结果的影响很大，因而研究了聚类中的相似性度量问题，提出了广义距离概念。

A mathematic model of combined scheme optimization design is put forward, that defines the generalized distance among scheme function carriers.

提出了方案组合优化数学模型。

Leading entropy into establishing model of assessment models of system risk, new type of fuzzy pattern recognized model is put forward based on entropy and least generalized distance square sum of weight and fuzzy synthesize judgement model of assessment matrix defined by subordinated function of sine or cosine function.

2将模糊熵引入系统危险性评价模型的建模之中，提出了基于模糊熵及权广义距离之和最小的新型的模糊模式识别模型。

The algorithm for generlized edit distance is NP-complete.A one-direction,low complexity document distance metric based on generalized edit distance is proposed after probing special patterns of document plagiarism.

广义编辑距离的计算是一个NP-完全问题，在充分考虑了文档抄袭行为的特点之后提出一种基于广义编辑距离的单向的低计算复杂性的文档距离度量方法。

When the generator polynomial of a given linear rank distance code possesses generalized continuous roots set, the sufficient condition that makes the given linear rank distance code forming rank distance BCH code is discussed.

他们指出当线性秩距离码的生成多项式的根集不是连续根集时，确定秩距离码的最小秩距离以及构做极大秩距离码是未解决的问题。

A generalized Gaussian Laplacian eigenmap algorithm based on geodesic distance is proposed,which incorporates geodesic distance and generalized Gaussian function into the original Laplacian eigenmap algorithm.GGLE algorithm can adjust the similarities between nodes of neighborhood graph,and can preserve the different degrees of local properties by using super-Gaussian function,Gaussian function or sub-Gaussian function.Moreover,GGLE can avoid the deficiency of Euclidean distance by using geodesic distance when neighborhoods of data points are enlarged for preserving more neighborhood relations.Experimental results show that the global low-dimensional coordinates obtained by GGLE have different clustering properties and different degrees of preserving local neighborhood structures when different generalized Gaussian functions are used to measuring the similarities between high-dimensional data points.(3) An ensemble-based discriminant algorithm based on GGLE is proposed.

该算法将测地线距离和广义高斯函数融合到传统的拉普拉斯特征映射算法中，可以调整近邻图结点间的相似度，通过选择超高斯、高斯或者次高斯函数来实现不同程度的近邻局部特性的保持；而且当需要保持更多的近邻关系使得数据点邻域增大时，采用测地线距离可以避免欧氏距离度量不合理的缺陷；实验结果表明在用不同的广义高斯函数度量高维数据点间的相似度时，局部近邻结构保持的程度是不同的，GGLE获得的全局低维坐标也呈现出不同的聚类特性。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。