zhixin

有关matlab的使用教程，新手可以下下来看看(Relating to the use of matlab tutorials, and newcomers can look down under)

扩频通信仿真系统，包括各个模块的分析编码译码，以及跳频仿真，和同步模块分析(Spread spectrum communication simulation systems, including the analysis of each module)

an svd syste is modelled in this file.

说明：  矩阵的LU分解 PLU分解 以及平方根分解(LU decomposition of the matrix square root PLU decomposition and decomposition)

BER calculation in rayleigh

数字图像处理中的数据分析，包括回归分析和概率统计(Digital image processing, data analysis, including regression analysis and probability and statistics)

here a file to computee fourier tranform of an image

Photos with people (e.g., family, friends, celebrities, etc.) are the major interest of users. Thus, with the exponentially growing photos, large-scale content-based face image retrieval is an enabling technology for many emerging applications. In this work, we aim to utilize automatically detected human attributes that contain semantic cues of the face photos to improve contentbased face retrieval by constructing semantic codewords for efficient large-scale face retrieval. By leveraging human attributes in a scalable and systematic framework, we propose two orthogonal methods named attribute-enhanced sparse coding and attributeembedded inverted indexing to improve the face retrieval in the offline and online stages. We investigate the effectiveness of different attributes and vital factors essential for face retrieval. Experimenting on two public datasets, the results show that theproposed methods can achieve up to 43.5 relative improvement in MAP compared to the existing methods.

验证哥德巴赫猜想的部分MATLAB程序代码，希望对大家有用。(Part of the MATLAB program code Goldbach conjecture verification, I hope useful for everyone.)

Fuzz c-mean Clusterin technique