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development-risk-prediction
本文基于BP神经网络应用于预测的原理,提出预测步骤及预测可行性,探讨建立基于BP神经网络的预测模型的关键技术,包括样本的选取与预处理、输入输出变量的选取、隐层节点数的确定、初始权值和阈值的选取、激活函数、训练算法与参数的选取,最后建立合理的网络模型;结合住宅市场的实际情况,建立两类BP 神经网络预测模型:基于时间序列的趋势预测模型以及基于影响因素的回归预测模型,即分别采用神经网络趋势预测和回归预测的思路,把住宅市场的供给、需求与房价的历年数据以及其影响因素的数据分别作为学习样本,建立预测模型,进行预测。(Real estate development risk prediction
)
- 2011-04-22 10:40:30下载
- 积分:1
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beamforming
固定阵列孔径,随机阵元间隔MVDR,OPT,LMS方法波束形成(Fixed array aperture, random array element interval MVDR, OPT, LMS beamforming)
- 2012-11-01 10:33:29下载
- 积分:1
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matlabfunction
这是一本对MATLAB函数语句进行说明的一本电子书(This is one pairs of MATLAB statements illustrate the function of an e-book)
- 2009-12-06 22:57:02下载
- 积分:1
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Fast_Fourier_Transform
快速傅里叶变换
可以计算并且仿真出图片等,里面包括三角变换、逆变换等。(Fast Fourier Transform
And simulation can be calculated, such as a picture, which includes the triangular transform, inverse transform and so on.)
- 2009-05-20 12:39:05下载
- 积分:1
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OFDM
基于MATLAB的OFDM发送,接收端程序。(MATLAB based on the OFDM transmission, the receiving end procedures.)
- 2008-06-03 04:25:14下载
- 积分:1
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gmsk
gmsk的详细c语言编程过程,很适合初学者使用(the detailed c language gmsk programming process, it is suitable for beginners)
- 2012-08-27 17:14:05下载
- 积分:1
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HPF
A High Pass filter matlab code for image processing in frequency domain
- 2013-12-14 04:16:57下载
- 积分:1
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程序
说明: 三维图像的生成及其运算。
散斑图像的生成及其运算(Generate three-dimensional image, and related calculation methods.
Generation and calculation of speckle pattern)
- 2020-04-27 09:26:12下载
- 积分:1
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5_attractor_sync1
采用主动-被动的同步方案实现两个具有5涡卷蔡氏混沌电路系统同步(By active- passive synchronization scheme to achieve the two Chua' s chaotic circuit with five scroll synchronization)
- 2010-06-23 01:23:21下载
- 积分:1
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ViterbiDec
viterbi译码算法的matlab源代码(viterbi decoding algorithm matlab source code)
- 2009-03-06 21:26:03下载
- 积分:1