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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
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skin-detection
This file helps identify the presence of a human face, hand or any other body part by identifying and marking skin-like pixels within a given image. With further image processing techniques, the output produced by this script can be refined and processed to be fed into larger face detection and tracking, gesture recognition, and other HCI applications.
- 2011-02-04 01:15:04下载
- 积分:1
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Gaussiangaijin
采用改进的高斯法对图像进行分析,在图像应用中有很大作用,MATLAB改进(modified Gaussian method of image analysis, image application in a significant role, improving MATLAB)
- 2007-06-16 15:56:11下载
- 积分:1
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MATLAB
MATLAB的函数大全,基本上所有的内置函数都有了。(MATLAB function Daquan, basically all have a built-in functions.)
- 2011-09-15 22:13:02下载
- 积分:1
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huffmam_decoding
the decoding of Huffman codes is shown. For the decoding the coding tree has to be constructed using the information which has to be transmitted as well.
Following that the input is read bitwise and for each 0 a left turn is taken and for each one a right turn until a leave is reached. In this case the value of the leave (usually a character) is output, continuing after that at the root.
- 2010-08-11 04:03:25下载
- 积分:1
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FDTD-Maxwell_equations
FDTD解Maxwell旋度方程,三维直角坐标空间格子内包含均匀三次单元格(finite-difference time-domain solution of Maxwell s curl equations over a three-dimensional Cartesian space lattice comprised of uniform cubic grid cells.
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- 2009-04-30 10:47:55下载
- 积分:1
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DataRailv1.1
建设和测试模式,尤其是那些将以往的重大知识的过程,涉及到当前正在很差综合多个步骤。我们已经开发锑管道建立一个有效的工作流,基于开放源代码,公众标准与现代软件的做法(The process of constructing and testing models, particularly those that incorporate significant prior knowledge, involves multiple steps that are currently very poorly integrated. We have developed SB-Pipeline to create an effective workflow based on open-source code, public standards and modern software practice.)
- 2009-11-23 16:03:54下载
- 积分:1
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MATLAB
this is to apply frame blocking.. top apply non stationary signal to semi stationary signal
- 2011-01-09 21:33:51下载
- 积分:1
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bpsk
说明: BPSK仿真 仿真了在瑞利信道和加性高斯白噪声 下的调制和解调及误码率(The simulationof bpsk, input the signal in Rayleigh and awgn)
- 2011-03-23 21:15:53下载
- 积分:1
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vectors-as-arrays
matlab - vectors as arrays
- 2013-05-22 03:42:40下载
- 积分:1