• And the methods can be divided into portioning method, hierarchical method, density-based method, grid-based method and model-based method.

    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。

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  • Based on the concepts of randomness and fuzziness, a fuzzy reliability analysis method of probability density function equivalent is proposed in this article.

    依据随机性和模糊性的基本概念,提出了当量概率密度函数的模糊可靠性分析方法。

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  • According to the relationship between auto correlation function and its spectral density, a new type of decision tree method based on signal analysis theory is proposed in this paper.

    该文根据自相关函数与谱密度函数之间的对应关系,提出了一种新的基于自相关函数的决策树归纳学习算法。

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  • An elastic meshing feature extraction method based on the stroke density is proposed.

    提出了一种基于笔画密度的弹性网格特征提取方法。

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  • Thus, detergent-based cellular fractionation separates cellular components with greater ease and speed compared to a more laborious density centrifugation method (4).

    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)。

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  • 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.

    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。

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  • Based on finite element method, variable density method was employed to optimize the configuration of adherends in overlap region, and the curve fitting was applied to attain proper configuration.

    在有限元方法的基础上,利用变密度法对单搭接胶接接头搭接区域的被粘物形状进行了拓扑优化,通过曲线拟合得到了较为合理的轮廓。

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  • A clustering algorithm based on density and partitioning method is presented according to the analysis of the strengths and weaknesses of traditional clustering algorithms.

    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。

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  • In the paper, what is the typical sample of KNN is analyzed, and a method of samples selection based density is presented.

    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。

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  • The calculation method of the geographic element density is researched based on analysis ofthe land series maps published of county and prefecture.

    在分析已出版的县、地土地系列图的基础上,探讨地理要素密度计算方法;

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  • Based on density functional theory (DFT) and B3LYP method, we made a theoretical study of the reaction system involving organic transitional metal compound. We studied the mechanism of each reaction.

    本文采用密度泛函理论B3LYP方法对有机过渡金属化合物参与的化学反应体系进行了理论研究。

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  • Based on the analytic method of cyclic spectrum density, the paper pointed out that the impact frequency could be extracted effectively with the help of scanning cyclic frequency domain.

    通过对循环谱密度分析方法的特性分析,指出应用循环谱密度分析方法可以在循环频率域有效提取出滚动轴承的冲击故障频率。

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  • According to the nonlinear dynamic model of a nuclear reactor, a new constant neutron flux density control method based on nonlinear state feedback is presented.

    针对核反应堆点堆动态非线性模型,提出了一种非线性状态反馈的中子通量密度恒值控制的新方法。

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  • The deformation capability affected by the fabric parameters such as warp and weft yarn density is also analyzed based on the parallelogram method.

    并采用平行四边形法,分析了经纬纱密度等织物参数对织物变形能力的影响。

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  • We propose a method for proving two matrix identities, which are often used in statistical analysis, based on knowledge of conditional posterior density.

    提出了用求条件后验密度的方法证明统计分析中的两个矩阵等式的方法。

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  • Combined with semantic similarity of text data, this paper gives a method of text data clustering based on semantic density.

    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。

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  • Direct against this kind of situation, the paper presents a method to estimate average size of closely packed particles based on edge density without explicit segmentation.

    本文针对这种情况,提出了一种不用经过精细分割,而是基于边缘密度计算紧凑颗粒平均尺寸的算法。

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  • 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.

    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。

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  • 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.

    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。

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  • Gaussian Mixture Density Modelling and Decomposition (GMDD) is a hierarchical clustering method based on robust statistical theory.

    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。

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  • The structural stabilities and electronic structures of W atomic chains are studied by employing first-principles plane wave pseudopotential method based on the density functional theory.

    使用基于密度泛函理论的第一原理平面波赝势法,研究了W原子链的结构稳定性和电子结构性质。

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  • A new method for density estimation was developed based on the Support Vector Machine (SVM).

    介绍了基于支持向量机的概率密度估计。

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  • 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.

    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。

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  • This paper proposes a mesh simplification algorithm based on vertex's curvature, which use edge collapse method to reduce the density of low-curvature region of meshes.

    本文提出的网格简化算法是根据网格顶点的曲率,采用边折叠的方式来减少低频区域的网格顶点密度。

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  • 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.

    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。

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  • A long-term forecast method of timber growth ring density based on process neural network was proposed in this paper.

    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。

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  • 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。

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  • Moreover, based on the method of finite element analysis and the general software, the failure behavior of high density syntactic foams is investigated.

    还利用计算机和通用软件对高密度复合泡沫塑料进行了有限元分析,研究了高密度复合泡沫塑料的失效行为。

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  • Moreover, based on the method of finite element analysis and the general software, the failure behavior of high density syntactic foams is investigated.

    还利用计算机和通用软件对高密度复合泡沫塑料进行了有限元分析,研究了高密度复合泡沫塑料的失效行为。

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