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SignCorrectionInSVDandPCA
虽然奇异值分解(SVD)和特征值分解(EVD的)是行之有效的,可以通过先进的设施设备先进的算法,它不是通常所说,有一个内在的迹象,可以显着影响的不确定性的结论计算及诠释来自其结果。我们提供一个解决方案,标志模糊的问题确定了从奇异向量的内积和个人数据载体签署奇异向量的迹象。该数据可能有不同的载体,但它有它自身的定位和实际意义的选择方向,其中多数的向量点。这可以通过评估发现了内心的签署标志产品的总和。(Although the Singular Value Decomposition (SVD) and eigenvalue decomposition (EVD) are well-established and can be computed via state-of-the-art algorithms, it is not commonly mentioned that there is an intrinsic sign indeterminacy that can significantly impact the conclusions and interpretations drawn from their results. We provide a solution to the sign ambiguity problem by determining the sign of the singular vector from the sign of the inner product of the singular vector and the individual data vectors. The data vectors may have different orientation but it makes intuitive as well as practical sense to choose the direction in which the majority of the vectors point. This can be found by assessing the sign of the sum of the signed inner products. )
- 2010-07-01 09:49:23下载
- 积分:1
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number-of-the--mistake
对诸如谷物,细菌,微生物的微小颗粒的计数(On, such as grains, bacteria, microbial count of small particles)
- 2011-05-30 20:14:37下载
- 积分:1
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boyi
清华大学电子系随机过程运用鞅和停时仿真博弈的大作业。详细注释,代码已调试(stop-time gambling random process)
- 2009-11-12 21:19:15下载
- 积分:1
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GMSK
说明: 实现了GMSK调制方式下OFDM系统的仿真(Achieved a GMSK modulation mode OFDM system simulation)
- 2008-10-06 12:37:19下载
- 积分:1
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shili1
matlab的图形标注,利于matlab的图形学习(Matlab graphical label, beneficial to the matlab graphical learning)
- 2012-04-27 18:10:48下载
- 积分:1
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11
说明: empirical formula with kaiser
clc
clear all
fs=1000
fc=250
df=50
r=0.001
f=fc/fs
dw=2*pi*(df/fs)
a=-20*log(r)
n=floor(((a-8)/(2.285*dw))+1)
if a>50
b=0.1102*(a-8.7)
elseif a>=21 && a<=50
b=0.5842*((a-21)^0.4)+0.07886*(a-21)
elseif a<21
b=0.0
end
w=kaiser(n,b)
for i=1:n
if i~=(n-1)/2
hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f)
elseif i==(n-1)/2
hd(i)=2*f
end
end
for j=1:n
h(j)=w(j)*hd(j)
end
subplot(3,1,1), plot(w)
subplot(3,1,2), plot(h)
subplot(3,1,3), plot(h,n)
- 2014-12-24 23:20:03下载
- 积分:1
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QUBIT4MATLAB4.01
量子计算的matlab例程:QUBIT4MATLAB4.01(Quantum computing matlab routines: QUBIT4MATLAB4.01)
- 2011-04-21 16:17:37下载
- 积分:1
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ChaosToolbox1p0_trial
混沌时间序列预测工具箱,包括了李雅普诺夫指数、分形纬、嵌入纬以及神经网络预测(chaotic time series forecasting tool kit, including the Lyapunov exponent, fractal-wai, Wei and embedded neural network prediction)
- 2007-04-25 15:04:30下载
- 积分:1
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SwitchingPowerSupplyDesign
Switching Power Supply Design
- 2010-08-24 10:22:17下载
- 积分:1
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dsp-eg-filter
matlab环境下的低通滤波设计及实现,基于Dsp(matlab environment of low-pass filter design and realization, based on the Dsp)
- 2008-07-29 19:43:57下载
- 积分:1