-
matlab
聚类算法,不是分类算法。分类算法是给一个数据,然后判断这个数据属于已分好的类中的具体哪一类。聚类算法是给一大堆原始数据,然后通过算法将其中具有相似特征的数据聚为一类。这里的k-means聚类,是事先给出原始数据所含的类数,然后将含有相似特征的数据聚为一个类中。所有资料中还是Andrew Ng介绍的明白。首先给出原始数据{x1,x2,...,xn},这些数据没有被标记的。初始化k个随机数据u1,u2,...,uk。这些xn和uk都是向量。根据下面两个公式迭代就能求出最终所有的u,这些u就是最终所有类的中心位置。(Clustering algorithm, not a classification algorithm. Classification algorithm is to give a figure, and then determine the data belonging to a specific class of good which category. Clustering algorithm is to give a lot of raw data, and then through the algorithm which has similar characteristics data together as a class. Here k-means clustering, is given in advance the number of classes contained in the raw data, then the data contain similar characteristics together as a class. All information presented in or Andrew Ng understand. Firstly, raw data {x1, x2, ..., xn}, the data is not labeled. K random initialization data u1, u2, ..., uk. These are the vectors xn and uk. According to the following two formulas can be obtained final iteration all u, u is the ultimate all these classes the center position.)
- 2014-02-18 09:59:02下载
- 积分:1
-
fc0
完全图哈密尔顿圈的遗传模拟退火算法matlab通用源程序(Complete graph Hamiltonian cycle common genetic simulated annealing algorithm matlab source)
- 2011-04-19 16:59:44下载
- 积分:1
-
Coordinate-Transformation
Coordinate Transformation between several frames of reference, developed in MatLab
- 2015-01-21 19:04:09下载
- 积分:1
-
hie-V5.7
For beginners with a reference value, Rotating machinery 2-d holographic spectrum calculation, Chaos-based simulated annealing algorithm.
- 2017-10-25 16:53:06下载
- 积分:1
-
soundexample
Realtime sound acquisiton and processing using matlab
- 2010-08-31 19:22:26下载
- 积分:1
-
jpg
The aim of this short workshop is to demonstrate the effectiveness of the JPEG encoding/decoding process using test data and test images. As explained in the lectures the major elements of the JPEG encoding process are the DCT, the non-uniform Quantisation matrix and variable run-length encoding.
Building an emulator of the JPEG encoding and decoding algorithm may appear a daunting task, but Matlab is well suited to such coding.
- 2015-03-22 02:46:18下载
- 积分:1
-
霍夫曼编码
运用matlab实现霍夫曼编码,可以自己输入(Using MATLAB to achieve Hoffman encoding, you can input it yourself)
- 2020-11-17 09:29:39下载
- 积分:1
-
2
说明: 采用抗积分饱和PID控制算法进行离散系统阶跃响应。可以避免控制量长时间停留在饱和区,防止系统产生超调。(PID Controler with intergration sturation)
- 2011-04-03 22:11:03下载
- 积分:1
-
kMeansCluster
说明: k均值分类 效率高 代码简单 利用最小均方误差准则编写(k-means efficient)
- 2010-04-23 16:05:03下载
- 积分:1
-
aiai
在用 DFT 计算连续信号时可能出现频谱混叠现象、泄露、栅栏效应(signal aliasing)
- 2011-09-02 22:49:53下载
- 积分:1