-
k_means
首先从n个数据对象任意选择 k 个对象作为初始聚类中心;而对于所剩下其它对象,则根据它们与这些聚类中心的相似度(距离),分别将它们分配给与其最相似的(聚类中心所代表的)聚类;然后再计算每个所获新聚类的聚类中心(该聚类中所有对象的均值);不断重复这一过程直到标准测度函数开始收敛为止。一般都采用均方差作为标准测度函数. k个聚类具有以下特点:各聚类本身尽可能的紧凑,而各聚类之间尽可能的分开。(First, a data object from the n choose k objects as initial cluster centers and for the rest of the other objects, according to their similarity with the cluster center (distance), respectively, assign them to their most similar (represented by cluster center) clustering then calculated for each cluster center received a new clustering (all objects in the cluster mean) repeats this process until the convergence criteria begin until the measure function. Standard deviation is generally used as a standard measure function. K a cluster has the following characteristics: the cluster itself as a compact, but separated as much as possible between each cluster.)
- 2011-01-04 12:30:31下载
- 积分:1
-
improvednewton
给定一个三次方程,用改进的Newton法求解,并研究各种算法的收敛阶数.(Given a cubic equation, using the improved Newton method and to study the convergence of various algorithms order.)
- 2008-03-01 17:47:11下载
- 积分:1
-
0712253
I wrote this program for coloring any map with only 4 colors. Input for it is an bitmap file with 24 bit colors (must gray/scale). Output is a bitmap which is colored with maximum 4 colors.
- 2009-12-01 02:34:09下载
- 积分:1
-
DFT
是用matlab写的一个小巧的DFT程序,不同于FFT程序,希望对大家有所帮助,而且有对信号处理的实例,雷克子波(This is a cabinet with matlab write the DFT program, unlike FFT program, hope to help
)
- 2011-05-09 21:04:57下载
- 积分:1
-
cogenerazione_fun
cogeneration function, plot costs, combustible mass, user needs
- 2011-06-24 16:51:38下载
- 积分:1
-
BLUE-TOOTH
这是一个基于Simulink的蓝牙语音传输的仿真系统。它是由主发射、从接收和传输、干扰(802.11b Interferer)等主要部分组成,以及信号源和误码表、信号显示单元组成的仿真系统。(This is a simulation system of Bluetooth voice transmission based on Simulink. It is composed of a main transmitting, receiving and transmitting interference (802.11b, Interferer) and other major parts, as well as the signal source and the error table, signal display unit simulation system.)
- 2016-03-24 11:27:20下载
- 积分:1
-
uwb_ppm
说明: 该程序仿真超宽带的脉冲位置调制。是在MATLAB下实现的。(ultra-wideband pulse position modulation. MATLAB is achievable.)
- 2006-03-21 11:17:13下载
- 积分:1
-
maichongxiangying
脉冲响应不变法设计巴特沃斯数字低通滤波器(Impulse response invariant method design Butterworth digital low-pass filter)
- 2012-12-30 02:30:41下载
- 积分:1
-
C
说明: 对C一个详细的讲解里面有很多例子 可以多学习学习(a good programming book)
- 2010-10-26 22:59:35下载
- 积分:1
-
GPSsignal
gps数字中频信号模拟程序 希望对大家有帮助(gps digital IF signal simulation program we hope to help)
- 2021-05-08 19:48:35下载
- 积分:1