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对高维数据采用PCA进行降维处理
- 对高维数据采用PCA进行降维处理,主成分个数采用累积方差贡献率的方法确定
MATLAB_Codes_for_Dimensionality_Reduction
- 数据降维工具箱,包括一些典型算法,例如pca,lle,mds,lda等。-Data dimensionality reduction tool kit, including some typical algorithms, such as the pca, lle, mds, lda, etc..
aPCA_TEST
- 主成分分析,用于分析数据,将多维变量降维处理,使得方便特征提取,便于进一步特征提取。-脰 梅 鲁 脡 脰 脰脦枚 拢 卢 脫脙脫脷 脰脦枚脢媒 戮 脻 拢卢陆芦露 脿脦 卢 卤 盲脕 驴 陆 渭脦 卢
PCA
- 主成分分析方法(PCA),PCA算法的理论依据是K-L变换,通过一定的性能目标来寻找线性变换W,实现对高维数据的降维。-Principal component analysis (PCA), PCA algorithm is based on the theory of KL transform, through a certain performance targets to find the linear transformatio
PCA1
- pca算法,用于数据降维,注释非常详细清晰,-PCA algorithm, for data dimensionality reduction, clear and very detailed notes,
pca
- 主成分分析程序,可用于数据降维及特征提取。-Principal component analysis procedures, can be used for data dimensionality reduction and feature extraction.
pca
- 非线性降维方法 可以应用于高维数据的机器学习-Nonlinear dimensionality reduction methods can be applied to high-dimensional data, machine learning
PCA
- 优化后的PCA 能对数据进行降维 很实用-PCA can be optimized for data dimensionality reduction is very useful
PCA
- 用于模式识别中的PCA降维输入数据data和option。data是一个矩阵,每一行代表一个样本。option是选择降维到多少维。-[eigvector, eigvalue] = PCA(data, options) [eigvector, eigvalue] = PCA(data)
pca
- PCA数据降维,利用MATLAB进行开发学习-PCA of data dimensionality reduction, using MATLAB to develop learning
pca
- 主成分分析程序,应用于图像特征提取,数据降维等方面 -the code of PCA
pca
- 实现pca功能,进行数据降维,使算法简单化-Realize pca functions, to data dimension reduction, the method is simple
K-Means PCA降维
- K-Means算法,不要求建立模型之后对结果进行新的预测,没有相应的标签,只是根据数据的特征对数据进行聚类。主成分分析降维对数据进行可视化操作,对features进行降维.(K-Means algorithm does not require the establishment of the model after the new prediction of the results, there is no corresponding
pca降维
- pca数据降维算法,很好的解决数据灾难的问题。(PCA data dimensionality reduction algorithm, a good solution to the problem of data disaster.)
11数据降维_配套代码
- 这是吴恩达在course公开课上讲的数据降维的作业的代码,主要是应用PCA对数据降维(This is Wu Enda in the course open class lectures on data dimension reduction operations code, mainly using PCA for data dimensionality reduction)
PCA
- 采用INP数据(145*145*200),该数据有16个类别, PCA进行数据降维,然后对降维数据采用kNN分类(k=1)。(Using INP data (145*145*200), the data has 16 categories, PCA carries out data reduction, and then uses kNN classification for dimensionality reduction data
pca算法实现
- 通过Python实现了PCA数据降维的方法(The method of reducing the dimension of PCA data through Python)
pca
- 大数据降维方法,具体的处理了图像等,包括数据的冗余部分,利用PCA技术快速降维。(Large data dimensionality reduction method.Specifically dealing with images, including redundant parts of data, and using PCA technology to reduce dimensionality rapidly.)
NM_PCA
- PCA降维算法,本程序已经调好,可以直接跑数据(PCA dimension reduction algorithm, this program has been adjusted, you can run data directly)
pca
- 应用于数据降维的一种MATLAB程序,可以实现从高维到低维的降解(A matlab program applied to data dimensionality reduction can realize the degradation from high dimension to low dimension)