videoface

FORECAST WITH NEURAL NETWORKS

读取股市中散户，大户，超大户资金进出数量(Read the stock market, individual investors, large, super large amount of money out of)

electric motor with torque speed control

线性分类器-最小平方误差算法，对一组数据进行分类，分析b1、b2改变对结果的影响(Linear classifier- the least square error algorithm)

非线形回归程序进行最优化.(我上传的五个程序都是我个人做研究中写的,由于时间比较匆忙且只是自己写文章时做的实验,没有什么注释,如果有什么不懂的,可以email联系我:)(non-linear regression procedure optimization. (I uploaded five procedures are my personal study was done, Because of the time compared to just rush and write the article, so the experiment, nothing Notes, if what I do know, I can email links :))

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

Real world problems often present multiple, frequently conflicting, objectives. The research for optimal solutions of multi-objective problems can be achieved through means of genetic algorithms, which are inspired by the natural process of evolution: an initial population of solutions is randomly generated, then pairs of solutions are selected and combined in order to create new solutions slightly different the initial solutions. The fittest solutions are kept in the population and are used to generate new solutions

这是一个LZW解压的matlab子函数程序和主函数，要结合我第一个上传的LZW压缩来看，这样有助于理解，效果很少明显，压缩率80 以上，不懂的跟我联系，我交你！！！我弄懂了！(It is a realisation of lzw decompression.Its compression ratio is beyond 80 .Its compression source is the first file which I have uploaded.If you have some questions,you can contact with me.)

电力系统中由于采用了很多电力电子设备，引入了大量谐波，致使电能质量降低，改程序可以求出谐波的幅值，频率和相位(Spectrum analysis)

设计一个按照时间抽取的基2快速傅里叶变换（基2FFT-DIT）。输入倒位序，输出自然顺序。(Design is taken in accordance with the time radix-2 fast Fourier transform the (base 2FFT-DIT). Enter the inversion sequence, the output of the natural order.)