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JAVA实现文本聚类，用到TF/IDF权重
- JAVA实现文本聚类，用到TF/IDF权重，用余弦夹角计算文本相似度，用k-means进行数据聚类等数学和统计 知识。,JAVA realization of text clustering, using TF/IDF weight, calculated using cosine angle between the text of similarity, using k-means clustering for data such as mathematical and statistical
根升余弦滤波器的MATLAB代码
- （Root Raised Cosine Filter）根升余弦滤波器的MATLAB代码,Root Raised Cosine Filter MATLAB code
similarity.文本相似度计算余弦相似度代码
- 文本相似度计算余弦相似度代码，计算文本相似度，用于搜索引擎,Cosine similarity of text similarity computation code, the text of the similarity calculation for the search engine
MPSKMQAMmudulation.rar
- 本程序用于完成BPSK、QPSK、pi/4QPSK、OQPSK、8PSK、16QAM、32QAM、64QAM和128QAM的调制仿真。并可任意扩展到MPSK和MQAM。程序分成四个部分，fir.m对基带码元序列进行脉冲成型，可选矩形脉冲，升余弦脉冲和平方根升余弦脉冲； modal.m 为主程序，完成岁各种信号的基带星座图映射、脉冲成型和调制；pi4QPSK.m 为pi/4QPSK信号的星座图映射程序；test1.m给出一个简单的频谱显示测试。,This procedure for the com
FIR.rar
- 用窗函数法设计FIR 数字滤波器 能产生矩型窗、升余弦窗、改进升余弦窗和二阶升余弦窗的窗函数子程序,Window function method using FIR digital filter designed to produce the window rectangle, raised cosine window, improving the second order raised cosine window and the window raised cosine window fun
rrc_filter
- this is a verilog code for root raised cosine filter
TFIDF
- 用c#写的计算文本向量的TFIDF算法源码，同时包括用cosine距离计算文本相似度的算法源码-Calculation using c# to write the text of the TFIDF vector algorithm source code, while including the use of cosine similarity distance calculation algorithm for source text
G_t
- 根升余弦函数，主要用在调制时的成型时使用-Root raised cosine function, mainly used in modulation used at the time of molding
rolloffdigitalfilterdesign
- 平方根升余弦滚降数字滤波器的设计 很不错的文章-Square root raised cosine roll-off digital filter design
16qam_channel_encode
- 一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，采用（7，4）循环码对信源做信道编码，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，再对信号进行信道解码，画出采用信道编码技术和不采用信道编码技术的误比特率图。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated,
Discrete_Cosine_and_Sine_Transforms
- 继 Discrete Cosine Transform: Algorithms, Advantages, Applications (K. R. Rao and P. Yip) 之后的一本关于离散余弦变换(DCT)的快速实现算法的最新专著. 本书第五章“Integer Discrete Cosine/Sine Transforms”关于DCT整数近似实现写的非常详细和精彩, 很方便大家编程实现. 值得一提的是本书的第一作者Vladimir Britanak 一直在从事DCT, 尤其是改进的离散余
dct-code
- 离散余弦变换的VHDL实现，不错的代码和方法-Discrete cosine transform VHDL realization of good code and methods
shiyan4
- 基于matlab实现窗函数设计滤波器，包括矩形窗，升余弦窗，二阶升余弦窗。-Matlab window function based on the realization of the design filter, including the rectangular window, raised cosine window, the second order raised cosine window.
DigitalImageProcessing3
- 3.1 概述 3.2 可分离图像变换 3.3 离散傅里叶变换和性质 3.4 快速傅里叶变换 3.5 离散沃尔什变换 3.6 离散余弦变换 3.7 小波变换 -3.1 overview 3.2 detachable image transform 3.3 Discrete Fourier Transform and Fast Fourier Transform 3.4 Properties 3.5 Discrete Walsh Transform 3.6 Discret
commdoc_rrc
- Modify the Gray-coded modulation example (COMMDOC_GRAY) so that it uses a pair of square root raised cosine filters to perform pulse shaping and matched filtering at the transmitter and receiver, respectively.-Modify the Gray-coded modulation e
3
- matlab代码，数字图像矩阵数据的显示及其傅立叶变换，二维离散余弦变换的图像压缩，采用灰度变换的方法增强图像的对比度，直方图均匀化，模拟图像受高斯白噪声和椒盐噪声的影响，采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波-matlab code, digital image data display matrix and its Fourier transform, two-dimensional discrete cosine transform image compressio
11111111111456
- 为保证网络信息传输的安全性,提出一种视频图像加密方法。该方法引入混沌系统中的Logistic映射和 Baker映射,结合H·264视频压缩编码特点,利用Baker映射对DCT (Discrete Cosine Transform)变换量化后 的块进行位置置乱, -In order to ensure the safety of information transmission network, and a video image encryption method. This met
cosine
- 数字图像处理 离散余弦变换-Digital image processing, discrete cosine transform
cosine
- 本文件是离散余弦的具体实现，文件虽然简单了点，但希望对大家有所帮助！-The present document is a concrete realization of discrete cosine, while the paper a simple, but we want to help!
cosine
- cosine similarity measure