A 3-layer BP neural network is established by using Matlab programming language.The paper establishes bidding model based on Artificial Neutral Network,determines mark-up level with simulation,and testifies its reliability with actual examples,which has provided scientific basis for contractors to make rational bidding quotation.%利用Matlab编程语言构造了三层BP神经网络结构,建立了基于人工神经网络的投标报价模型,通过仿真模拟确定标高金水平,并用实例验证了其可靠性,为承包商作出合理报价决策提供了科学依据。
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