BP网络训练样本由有限元模型模态分析所得。
BP network train sample mode analyse the income by finite element model.
人工神经网络可以从一组样本中学习。
An artificial neural network can learn from a set of samples.
最后利用优化后的网络对未来的股指(测试样本)进行预测。
At last the test samples were predicted by the ultimate network.
最新的原始的时间序列的下一个样本由另一个神经网络预测。
Last, the next sample of the original time series was predicted by another neural network.
然后，使用大量数字样本对BP网络进行训练。
Then, use a large number of numeral pattern to train BP network.
网络市场调研具有快速、低成本、多媒体等优点，也有样本代表性差、问卷反馈不确定等缺点。
Internet marketing have advantages such as quick response, lower cost, multimedia method and so on.
网络市场调研具有快速、低成本、多媒体等优点，也有样本代表性差、问卷反馈不确定等缺点。
Internet marketing have advantages such as quick response, lower cost, multimedia method and so on.
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