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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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bizhang
避障程序演示,运用遗传分析法。。。。。。(Obstacle avoidance program demonstrates the use of genetic analysis.......)
- 2014-09-14 21:51:40下载
- 积分:1
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Matlab7_examble
《精通matlab7》 电子工业出版社,王正林,刘明编著,原版光碟。()
- 2007-09-29 00:50:04下载
- 积分:1
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EM277
EM277.zip是圣西门子S200的编程软件v4.0 Step 7 MicroWin的库(EM277.zip St. Simons S200 programming software v4.0 Step 7 MicroWin library)
- 2014-11-02 11:09:40下载
- 积分:1
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111
对某个三维集合体进行matlab重积分计算(Double integral calculation
)
- 2013-11-07 22:14:56下载
- 积分:1
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troper
用MATLAB进行MEMS传感器小信号的斩波放大器功能仿真(MATLAB troper)
- 2012-02-13 17:35:11下载
- 积分:1
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code
1采用遗传算法对男女生样本数据中的身高,体重,喜欢数学,喜欢文学,喜欢运动,喜欢模式识别共6个特征进行特征选择,并基于所得到的最佳特征采用SVM设计男女生分类器,并计算模型预测性能(包含SE,SP,ACC和AUC )。提示:可以用6位的0/1进行编码,适应度函数可以考虑类似 。(1 genetic algorithm for boys and girls in the sample data of height, weight, like math, like literature, like sports, like pattern recognition feature a total of six feature selection, design and use of SVM classifier for boys and girls based on the best features of the resulting and calculating prediction performance model (including SE, SP, ACC and AUC). Tip: 6 may be encoded with the 0/1, the fitness function may be considered similar.)
- 2017-04-10 11:41:46下载
- 积分:1
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audio
用matlab程序实现对音频信号幅度调制的仿真结果(Matlab program used for audio signal amplitude modulation simulation results)
- 2007-10-10 10:43:29下载
- 积分:1
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bp-example
利用两层BP神经网络训练加权系数。隐含层的激活函数取S型传输函数,输出层的激活函数取线性传输函数(Weighting factor of two layers of BP neural network training. The hidden layer activation function to take the S-shaped transfer function, the output layer activation function to take a linear transfer function)
- 2020-10-24 08:57:22下载
- 积分:1
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DPA-for-SM4
利用MATLAB对SM4算法电路进行差分功耗分析攻击进行仿真,通过仿真可以实现对SM4加密算法的攻击。(it s the differential power analysis attack simulation for SM4 algorithm,which is realized in MATLAB language. From the simulation waves and results,the DPA for SM4 encryption algorithm is successful.)
- 2020-11-13 15:59:43下载
- 积分:1