BPN的音标

After 2 weeks of treatment, the composite score ( Visual Analog Scale, VAS) of sexual function in HANS group showed a 102% increase ( P0 01) compared with before treatment and was 107% of that in the BPN group ( P0 01).

性机能问询调查（视觉模拟尺评分）结果显示：HANS组治疗2周后性机能总分较治疗前升高了102%（P001）；与单纯BPN组治疗后同期相比，增高107%（P001）。

A new extraction method of training samples is put forward based on the similarity to the mean vector and a new training algorithm based on stem cell mechanism is proposed to optimize BPN.

综上所述，本文从训练样本及训练算法对BPN优化问题进行了研究，提出了基于均矢量相似性的训练样本集分割方法和基于干细胞机制的进化神经网络训练算法。

Back propagation neural network ( BPN) is a self-adaptive, self-learning and non-linear algorithm and it is valuable for solving non-linear and complex problems.

误差反向传播神经网络（BPN）具有自适应、自学习能力强等特点，在解决非线性的复杂问题上有着重要价值。