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his algorithm was proposed by Quinlan (1993). The C4.5 algorithm generates a classification-decision tree for the given data-set by recursive partitioning of data. The decision is grown using Depth-first strategy. The algorithm considers all the poss
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一阶熵的计算,可以直观的看到一阶熵是如何计算的-first order entropy computation
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使用mantlab,计算图像的一阶熵和二阶熵-computer the first-order entropy and the second-order entropy
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该函数用来计算任意函数的一阶偏导数(数值方法),基于负熵最大的独立分量分析,利用matlab针对图像进行马氏距离计算 。- This function is used to calculate the arbitrary function of the first order partial derivative (numerical methods), Based on negative entropy largest independent component analysis, Using
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为了精准、稳定地提取滚动轴承故障特征,提出了基于变分模态分解和奇异值分解的特征提取方法,采用标准模糊C均值聚类(fuzzy C means clustering, FCM)进行故障识
别。对同一负荷下的已知故障信号进行变分模态分解,利用
奇异值分解技术进一步提取各模态特征,通过FCM形成标准聚类中心,采用海明贴近度对测试样本进行分类,并通过计算分类系数和“卜均模糊嫡对分类性能进行评价,将该方法
应用于滚动轴承变负荷故障诊断。通过与基于经验模态分解的特征提取方法对比,该方法对标准FCM
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能量熵的计算,基于chebyshev的水声信号分析,该函数用来计算任意函数的一阶偏导数(数值方法)。- Energy entropy calculation, Based chebyshev underwater acoustic signal analysis, This function is used to calculate the arbitrary function of the first order partial derivative (numerical methods).
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基于负熵最大的独立分量分析,图像的光流法计算的matlab程序,该函数用来计算任意函数的一阶偏导数(数值方法)。- Based on negative entropy largest independent component analysis, Image optical flow calculation matlab program, This function is used to calculate the arbitrary function of the first order pa
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