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Lecture17
用PCA在一组数维中找到主十得到主元分析,用于MACHINE LEARNING 中初步学习者(use pca find the principle component int the dataset)
- 2010-10-27 10:17:35下载
- 积分:1
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kmedian
The method works as follows.
1. For a data set with dimensionality, d, compute the variance
of data in each dimension (column).
2. Find the column with maximum variance call it cvmax
and sort it in any order.
3. Divide the data points of cvmax into K subsets, where K is
the desired number of clusters.
4. Find the median of each subset.
5. Use the corresponding data points (vectors) for each
median to initialize the cluster centers.
- 2013-08-10 03:45:31下载
- 积分:1
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butterworthbpf
Butterworth Bandpass Filter
- 2013-10-03 21:43:43下载
- 积分:1
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spring-stiffness
用matlab计算了一种弹簧的刚度,以及进行了线性回归(failed to translate)
- 2013-05-06 21:52:13下载
- 积分:1
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ga_new
基于复数编码的遗传算法,是实数编码的扩展(Complex coding based on genetic algorithms, real coding is an extension)
- 2010-05-17 16:24:39下载
- 积分:1
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knn
code of implementing the K-Nearest Neighbor method
- 2011-01-12 02:46:02下载
- 积分:1
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BESTESTSens
segmenting image whith matlab
- 2013-12-24 22:17:57下载
- 积分:1
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pso1
基于粒子群算法的电力系统负荷分配问题(1)数学模型:
以IEEE 3机6节点为工况模型 ,Load=850MW
(2)目标函数:
minF=∑(i=1,Ng)Fi(PGi),Fi(PGi) =aiPi2+biPi+ci+Ei,考虑阀点(Valve-Point)效应
(3)约束条件:
a.发电机组输出功率上下限约束,即PGi min<=PGi<= PGimax;
b.电力负荷平衡约束,忽略网损,即∑(i=1,Ng)(PGi)= PGD(Based on particle swarm optimization of power system load allocation problem)
- 2021-04-22 10:48:48下载
- 积分:1
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2DPE
抛物方程能够快速对大区域电波传播特性做出预测,目前已经得到了广泛的应用。压缩包里给出了二维抛物方程的matlab程序(The parabolic equation can quickly predict the propagation characteristics of large region waves. It has been widely used at present. In this paper, a two-dimensional parabolic equation program is given in this paper.)
- 2017-11-29 21:02:05下载
- 积分:1
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产生涡旋光的衍射光栅
说明: 生成涡旋光有多种方式,空间光调制,涡旋相位板,还有利用叉状光栅衍射法。此程序是叉状光栅生成程序,可以用来产生叉状光栅。(There are many ways to generate vortex light, such as spatial light modulation, vortex phase plate, and fork grating diffraction. This program is a generation program of fork grating, which can be used to generate fork grating.)
- 2020-04-03 20:22:46下载
- 积分:1