[已答复] 怎么设置BP神经网络的训练参数提高预测精度

香吉士_DAgOm 发表于 2017-4-3 21:58:27

6139

以下是我设置的训练参数，调了无数次都没有提高预测精度，真的不懂该怎么设置才好，真心求救啊
net=feedforwardnet(9);
net.trainParam.epochs =500;
net.trainParam.goal =1e-6;
net.trainParam.lr = 0.001;

回复主题收藏微博

4 条回复

倒序浏览

香吉士_DAgOm 发表于 2017-4-3 21:59:27

2^#

还有这是我的输入数据
480 0.0085408
480 0.0671893
480 0.1458478
480 0.2967561
480 0.4407578
480 0.5772979
480 0.7084345
480 0.8334897
480 1.0365734
480 1.0514779
430 0.0039994
430 0.0094124
430 0.0216222
430 0.0534441
430 0.105172
430 0.245867
430 0.3723059
430 0.451648
430 0.6348923
430 0.803341
430 0.9669415
430 1.0202351
430 1.0349032
430 1.0403988
400 0.0020221
400 0.0029648
400 0.0060214
400 0.0171001
400 0.0366016
400 0.1277909
400 0.2234085
400 0.3820325
400 0.5570572
400 0.7176293
400 0.8600035
400 1.0087886
350 0.000151
350 0.000319
350 0.0009701
350 0.002114
350 0.0126882
350 0.0333964
350 0.0575042
350 0.0828895
350 0.0874782
350 0.1307375
350 0.378966
350 0.5135706
350 0.8300422
350 0.9347596
320 0.0056702
320 0.0189365
320 0.0438329
320 0.0702911
320 0.1006932
320 0.1243368
320 0.3677052
320 0.5861382
320 0.7948776
320 0.9981593
290 0.000384
290 0.0059388
290 0.0282814
290 0.0822811
290 0.1007164
290 0.2566255
290 0.6522286
290 0.9523579
290 1.0732471
290 1.0801895
290 1.096225
290 1.1035705
290 1.1145509
260 0.000056
260 0.000217
260 0.0044188
260 0.0137025
260 0.0397466
260 0.057069
260 0.0745934
260 0.1144722
260 0.2902019
260 0.5538599
260 0.6926281
260 0.839267
260 0.9009491