压缩感知中基于m序列的测量矩阵的构成，代码在matlab上进行了仿真，效果好于传统高斯矩阵。代码有详细注释，易懂-This codes described measurement matrix based on m sequences in Compressed sensing. It has good result in matlab environment and the effect is better than the traditional Gaussian matrix. Code

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k-means聚类,用于文本的聚类，可以简单的聚类文本信息(kmeans use to classification txt ti is easy to use)