基于密度的方法可以发现任意形状的类，但其运算时间复杂度比较大并且不适合于发现分布情况不同的类。
Based density method can find any kind of class but the running time is so long and it can't find the class which has different data distribute.
现有的聚类分析算法可划分为：划分方法、层次的方法、基于密度的方法、基于网格的方法和基于模型的方法。
And the methods can be divided into portioning method, hierarchical method, density-based method, grid-based method and model-based method.
提出了一种基于笔画密度的弹性网格特征提取方法。
An elastic meshing feature extraction method based on the stroke density is proposed.
因此，与费劲的密度梯度离心方法相比，基于洗涤剂的细胞法分馏能简单快速地分离细胞组分（4）。
Thus, detergent-based cellular fractionation separates cellular components with greater ease and speed compared to a more laborious density centrifugation method (4).
方法：用基于像素的形态学测量法比较三组的白质密度。
Methods: White matter density was compared among three groups by voxel-based morphometry.
这种方法使用了基于密度的孤立点挖掘的主要思想，用克隆选择算法进行数据立方体搜索。
It is a dense-based method and the low-dense data cubes are searched by clonal selection algorithm.
高斯混合密度降解模型(GMDD)是一种基于稳健统计理论的层次聚类方法。
Gaussian Mixture Density Modelling and Decomposition (GMDD) is a hierarchical clustering method based on robust statistical theory.
本论文基于气动光学理论，研究在流场试验中检测高速瞬态流场密度分布的方法与实现。
The paper is based upon Aero-Optics theory, pursuing the methods and realization for measuring the density distribution of transient flow field in wind tunnel test.
提出一种基于过程神经网络的木材生长轮密度长期预测方法。
A long-term forecast method of timber growth ring density based on process neural network was proposed in this paper.
储层密度预测技术是一种基于改进的混合智能学习算法的地震非线性预测方法。
The reservoir density prediction technique is a non-linear seismic prediction approach based on improved hybrid intelligent learning algorithm.
针对此问题，笔者提出了一种基于快速傅立叶变换和功率谱密度计算的解决方法。
Aiming at this problem, an effective method based on FFT and power spectral density computing has been put forward.
为此，本文基于频谱合成法，提出并实现了一种生成各向异性分形地形的新方法，该方法通过指定分形曲面谱密度来实现分形的各向异性。
Therefore, we present a new method to generate anisotropic fractals based on spectral synthesis method. It gets anisotropic fractals by specifying the spectral density of the terrain surface.
结合文本数据的语义相似度，给出一种基于语义密度文本数据聚类的方法。
Combined with semantic similarity of text data, this paper gives a method of text data clustering based on semantic density.
所有计算都是基于密度泛函理论(DFT)框架下的第一原理平面波超软赝势方法。
It was performed by adopting the first-principles calculation of plane wave ultra-soft pseudo-potential technology of based upon the Density Function Theory (DFT).
引入了一种基于比率法的铂电阻高精度测温方法，简化了接口电路，从而提高了热蒸汽密度和流量计量精度。
Introduced a ratio method to measure the heat stream temperature with platinum resistor, the interface circuit is simplified and the precision for the flow measurement improved largely.
论文针对KNN这种常用的文本分类方法，分析了什么是它的典型样本，提出了一种基于密度的样本选择算法。
In the paper, what is the typical sample of KNN is analyzed, and a method of samples selection based density is presented.
采用基于密度刚度插值模型和序列凸规划法中的移动渐近线方法求解优化模型。 通过经典算例验证了本方法的有效性。
The optimization problem can be solved based on the density-stiffness interpolation scheme and the method of moving asymptotes belonging to sequential convex programming approaches.
介绍一种基于SPA测量方法的跟骨骨密度仪的设计原理，包括机械系统和控制系统的设计及工作原理。
The design principles of a bone densitometer for heel bone based on SPA are introduced here, which include the principles of mechanical system and control system.
针对电信号的有效传输受外界环境引起自身参数变化的问题，提出了一种基于有限元方法求取传输参数的等效电流密度法。
A novel method named equivalent current density based on finite element method was developed for parametric variation problem of signal transmission caused by the external environment.
道路密度指数分析法有两类方法：基于光谱—空间结构的分类后比较法和基于光谱—空间结构的图像差值法。
The road density index analysis has two ways: the post-classification compare method based on spectral-spatial structure and the imagery difference method based on spectral-spatial structure.
对谐振膜片进行了数学模型分析，并设计了基于数字闭环方法的谐振膜式密度传感器整体结构。
On basis of analyzing the mathematical models of resonant diaphragm, a integral structure of resonant diaphragm density sensor is designed based on the method of digital closed-loop.
给出了基于隶属度矩阵的模糊积分密度确定方法，介绍了基于模糊积分的分类器集成算法。
For this object, a method of determining fuzzy integral density with membership matrix is proposed, and the classifier ensemble algorithm based on fuzzy integral is introduced.
本文提出了一种新的基于沸腾壁面微结构分析的预测核态池沸腾中汽化核心密度的方法。
A new method has been presented to predict the nucleation site density in nucleate pool boiling based on the investigation of the microstructure of boiling surface.
在分析常用聚类算法的特点和适应性基础上提出一种基于密度与划分方法的聚类算法。
A clustering algorithm based on density and partitioning method is presented according to the analysis of the strengths and weaknesses of traditional clustering algorithms.
提出了一种基于沸腾表面微结构分析的预测核态沸腾中汽化核心密度的方法。
A method has been presented to predict the nucleation site density in nucleate boiling based on the investigation of the microstructure of boiling surface.
提出基于紧密度的法兰瞬态密封设计方法并编程实现。
The transient sealing design method of the flange based on the tightness was put forward and programmed.
在预处理环节，通过对各种归一化算法进行分析，确定了一种基于点密度和线密度相结合的非线性归一化方法。
In preprocess stage, based on analysis of many normalization algorithm, the author propose a novel non-linear normalization method, which is the combination of point-density and line-density method.
实验结果表明，新算法较基于密度的带噪声数据应用的空间聚类方法(DBSCAN)具有更好的聚类性能。
Experimental results show that the new algorithm has better performance than Density Based Spatial Clustering of Applications with Noise (DBSCAN).
实验结果表明，新算法较基于密度的带噪声数据应用的空间聚类方法(DBSCAN)具有更好的聚类性能。
Experimental results show that the new algorithm has better performance than Density Based Spatial Clustering of Applications with Noise (DBSCAN).
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