因此现在的问题是我们能否比较方便地直接确定聚类数，而不需任何假设。
So the current question is whether we can confirm the cluster number directly, not using any assumptions.
完整地解决了一类虚二次域类数的可除性问题。
We completely solve the divisibility problem of class Numbers a class of imaginary quadratic fields.
完整地解决了一类虚二次域类数的可除性问题。
We completely solve the divisibility problem of class Numbers for a class of imaginary quadratic fields.
实验表明，网络的逼近程度取决于聚类数的多少。
The simulation result shows that the approximation capability of the network depends on the number of clusters.
自动确定聚类数和海量数据的处理是谱聚类的关键问题。
Ascertainable clustering number and large training sets are vital problems of spectral clustering.
这个方法可以利用关系数据库运算实现，而且不要求预先指定类数。
This method can be implemented by the calculation of the relational data base, and it is not necessary to fix Numbers of classes in advance.
前言：目的探讨颅脑mri图像模糊聚类分割算法中最佳模糊聚类数。
Objective: To discuss the best fuzzy clustering number of MRI brain images segmentation.
聚类有效性指标既可用来评价聚类结果的有效性，也可以用来确定最佳聚类数。
Cluster validity index is used to scale the validity of clustering, and determine the number of clusters.
该算法无须人为指定聚类中心和类数，初始像素点的选取对提取结果不起决定作用。
This algorithm does not need to artificially specify the centers and quantity of color clustering, and the choice of the initial pixel does not make crucial effect on the quality of the final result.
为解决聚类数未知条件下面状地理实体的聚类问题，文中提出了一种基于聚类有效性函数的聚类方法。
A cluster validity function-based method is proposed for solving the problem of clustering for area geographical entities when the number of cluster is unknown.
结果表明：以被试正确反应的百分数为指标，两类数字的三种任务加工均没有表现出明显的视野（大脑半球）优势。
The results were as follows:1 When determined by percentage of correct reaction, there were no significant hemispheric advantages on all three tasks for two kinds of numerals.
将该种模型运用于公开的白血病基因表达数据集进行实验，实验表明该方法能自动获取基因表达数据的聚类数，并得到较高的分类准确率。
We applied the model to analyze the expression data set of leukaemia. The experimental result proved that this model can get cluster Numbers automatically and a high accuracy of classification.
考虑两类模糊回归模型：一类是设计点为实数、参数为模糊数；另一类是观察值为模糊数、参数为实数。
Two classes of fuzzy linear regression models are considered, one involves real design points and fuzzy number parameters, the other consists of fuzzy number observations and real parameters.
对于通知类，表示在报告间隔期间生成的通知批数。
For the notification class the number of notification batches generated during the reporting interval.
使用了新的Random类来生成随机数序列。
在rational类中，为有理数定义了4种操作。
In the rational class, then, four operations have been defined for rational Numbers.
伦敦富时100指数收盘仅下挫0.1%，跌幅最深的是矿业类股。
In London, the FTSE 100 index ended just 0.1 per cent lower, with mining stocks suffering most.
CwMtx没有内置的随机数生成器，也没有用随机元素填充矩阵的类函数。
CwMtx has no built-in random number generator, and there is no class function that fills a matrix with random elements.
同时，享受自己“类冬眠“的最后数周时光，因为春天已不再遥远。
In the meantime, enjoy your last weeks of quasi-hibernation, because spring is in the air.
注：2003年林木资源数据为森林资源二类调查数。
Note:Data of forest resources 2003 are from Class II survey.
本文研究一类笛卡尔积图的交叉数。
In this paper, we study the crossing Numbers of the cartesian product graph.
土壤动物的类群数、个体数量与土壤有机质、全氮的含量呈明显的正相关；
The numbers of individuals and groups of soil fauna were significantly and positively related to contents of organic matter and total nitrogen in the soil.
针对一类系统相对阶小于系统阶数的非线性系统，提出了一种基于输入输出线性化的观测器设计方法。
An observer design approach based on input-output linearization for a class of nonlinear systems whose relative degree is less than its orders is proposed.
本文所得结论为类地行星洛夫数的计算提供了借鉴。
The conclusions in this article can be used for reference in the calculation of the Love Numbers for the terres-trial planets.
本文研究了四元数量子力学中一类要求其解是正规或可对角化四元数矩阵的特征值反问题。
One kind of inverse eigenvalue problems, whose solutions are required to be normal or diagonalizable matrices, is investigated in quaternionic quantum mechanics.
该模型利用模糊聚类技术确定系统的模糊空间和模糊规则数，利用BP算法调整模糊神经网络的权系数。
The fuzzy space and the number of fuzzy rules of this model are defined by the fuzzy clustering method and weight coefficients of the model are adjusted by the BP algorithm.
类CPT编码由一个五位数cpt编码和描述性术语描述一项程序或者服务。
Category I CPT codes describe a procedure or service identified with a five-digit CPT code and descriptor nomenclature.
以图像的布朗维数为纹理特征对编码中的图像块进行聚类和排序，实现了对每个值域块所需比较定义域块数目的精确控制。
Taking the Brownian dimension as their texture feature, image blocks were clustered and sorted, to control the number of domain blocks to be compared with each range block in coding.
主要对定义在一般数域上的3 -幂零矩阵的相似等价类的个数问题进行探讨。
In this paper, we mainly discuss the enumeration problem of the equivalence class of 3-nilpotent matrix defined in normal number fields.
得到了图的条件色数的上界和达到上界的图类。
The upper bound of conditional chromatic number of graphs and the graphs satisfying this bound are obtained.
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