To raise capacity that virtual surgical simulation system deals with real work, this article introduces BP NN model instead of finite element model, and realizes real-time biomechanical response.
为了提高虚拟手术仿真系统进行实际作业的能力，提出了以BP神经网络模型来代替有限元模型，实现实时的生物力学响应。
A mixed NN model is constructed using BP algorithm improved with dynamic learning rate.
利用动态学习率改进BP算法，建立了混合神经网络模型。
To further improve the forecast accuracy of this model, and reduce its forecast error, I also improve the BP NN in this article.
为了进一步提高模型预测的准确度，减小预测误差，本文还对BP神经网络进行改进。
Compared with BP NN, the model is more practical.
与BP神经网络相比，该模型更实用。
Based on the research of the BP arithmetic and RBF arithmetic, the NN training and forecast model which is suitable for the environment-monitoring data is proposed.
通过对BP算法和RBF算法的研究，确定了适合环境监测数据COD值的神经网络训练与预测模型。
This paper uses GA-BP model to construct three-layer NN model.
本文应用GA-BP网络模型，建立了三层GA-BP神经网络模型。
This paper uses GA-BP model to construct three-layer NN model.
本文应用GA-BP网络模型，建立了三层GA-BP神经网络模型。
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