表 4. Classification performances of BP neural network with different number of input metrics.
不同输入特征值数目时的 BP 神经网络识别各类型心电信号的准确性
| 数目 | AC_sr | AC_vf | AC_vt | AC_asys | AC | AC 0 | |||||||||||
| 训练集 | 测试集 | 训练集 | 测试集 | 训练集 | 测试集 | 训练集 | 测试集 | 训练集 | 测试集 | 训练集 | 测试集 | ||||||
| 1 | 100.00% | 100.00% | 0.00% | 0.00% | 9.45% | 9.45% | 100.00% | 100.00% | 55.21% | 55.14% | 52.36% | 52.04% | |||||
| 2 | 100.00% | 100.00% | 95.70% | 96.77% | 0.00% | 0.00% | 100.00% | 100.00% | 79.91% | 80.18% | 73.92% | 74.02% | |||||
| 3 | 99.38% | 99.69% | 95.16% | 96.24% | 80.31% | 78.74% | 100.00% | 97.22% | 94.64% | 94.63% | 93.71% | 92.94% | |||||
| 4 | 95.65% | 95.96% | 94.62% | 96.24% | 87.40% | 83.46% | 97.30% | 100.00% | 93.90% | 93.89% | 93.74% | 93.87% | |||||
| 5 | 95.34% | 95.96% | 94.09% | 95.70% | 92.13% | 92.13% | 100.00% | 100.00% | 94.64% | 95.38% | 95.39% | 95.92% | |||||
| 6 | 100.00% | 100.00% | 96.24% | 97.31% | 98.43% | 98.43% | 100.00% | 100.00% | 98.66% | 98.96% | 98.67% | 98.93% | |||||
| 7 | 100.00% | 100.00% | 96.77% | 97.31% | 98.43% | 98.43% | 100.00% | 100.00% | 98.81% | 98.96% | 98.80% | 98.93% | |||||
| 8 | 100.00% | 100.00% | 96.77% | 97.31% | 98.43% | 97.64% | 100.00% | 100.00% | 98.81% | 98.81% | 98.80% | 98.73% | |||||
| 9 | 100.00% | 100.00% | 97.85% | 97.85% | 98.43% | 98.43% | 100.00% | 100.00% | 99.11% | 99.11% | 99.07% | 99.06% | |||||
| 10 | 100.00% | 100.00% | 96.24% | 97.85% | 98.43% | 98.43% | 100.00% | 100.00% | 98.66% | 99.11% | 98.67% | 99.06% | |||||
| 11 | 100.00% | 100.00% | 97.31% | 97.85% | 98.43% | 98.43% | 100.00% | 100.00% | 98.96% | 99.11% | 98.93% | 99.06% | |||||
| 12 | 100.00% | 100.00% | 97.31% | 97.31% | 98.43% | 97.64% | 100.00% | 97.22% | 98.96% | 98.66% | 98.93% | 98.05% | |||||
| 13 | 100.00% | 100.00% | 96.24% | 96.77% | 98.43% | 98.43% | 100.00% | 97.22% | 98.66% | 98.66% | 98.67% | 98.11% | |||||
| 14 | 100.00% | 100.00% | 97.31% | 97.31% | 98.43% | 97.64% | 100.00% | 100.00% | 98.96% | 98.81% | 98.93% | 98.73% | |||||
| 15 | 100.00% | 100.00% | 97.85% | 98.39% | 98.43% | 96.06% | 100.00% | 100.00% | 99.11% | 98.81% | 99.07% | 98.60% | |||||
| 16 | 100.00% | 100.00% | 98.39% | 98.39% | 97.64% | 96.06% | 100.00% | 100.00% | 99.11% | 98.81% | 99.01% | 98.60% | |||||
| 17 | 100.00% | 100.00% | 97.31% | 97.85% | 98.43% | 97.64% | 100.00% | 97.22% | 98.96% | 98.81% | 98.93% | 98.18% | |||||
| 18 | 100.00% | 100.00% | 97.31% | 96.77% | 96.85% | 95.28% | 100.00% | 100.00% | 98.66% | 98.21% | 98.54% | 98.00% | |||||
| 19 | 100.00% | 100.00% | 97.85% | 97.85% | 98.43% | 98.43% | 100.00% | 97.22% | 99.11% | 98.96% | 99.07% | 98.38% | |||||
| 20 | 100.00% | 100.00% | 98.39% | 97.85% | 98.43% | 98.43% | 100.00% | 97.22% | 99.26% | 98.96% | 99.20% | 98.38% | |||||
| 21 | 100.00% | 100.00% | 99.46% | 97.31% | 98.43% | 97.64% | 100.00% | 97.22% | 99.55% | 98.66% | 99.47% | 98.05% | |||||