Kohonen (example from help does not work)

1 次查看（过去 30 天）
Alexander
Alexander 2011-9-7
Hi all, please I need your help !
example (Kohonen) from help does not work
>> p = [.1 .8 .1 .9; .2 .9 .1 .8];
>> net = newc([0 1; 0 1],2);
>> wts = net.IW{1,1}
>> biases = net.b{1};
>> net.trainParam.epochs = 500;
>> net = train(net,p);
>> a = sim(net,p);
>> ac = vec2ind(a); >> ac
ac =
1 1 1 1
>> wts
wts =
0.5000 0.5000
0.5000 0.5000
My weight did not change. in example
wts =
0.1000 0.1467
0.8474 0.8525
Maybe I'm doing something wrong?

请先登录，再回答此问题。

采纳的回答

Alexander
Alexander 2011-9-8
7.10.0 (R.2010b)
  1 个评论
Lucas García
Lucas García 2011-9-8
So, download the fix in the previous link and give it a try. Then it will work fine.

请先登录，再进行评论。

更多回答（3 个）

Walter Roberson
Walter Roberson 2011-9-7
You did not assign a new value to wts, so it is going to continue to be the value that was retrieved before you did the training. You need to retrieve net.IW{1,1} after the training in order to see the effect of the training on the weights.
  1 个评论
Alexander
Alexander 2011-9-8
These are my values after training
net.IW{1,1}
ans =
0.5000 0.5000
0.5000 0.5000
After training, they have not changed.

请先登录，再进行评论。

Lucas García
Lucas García 2011-9-8
Which release are you using? There is a known bug in R2010b and R2011a regarding newc and competlayer.
http://www.mathworks.com/support/bugreports/730788
It has been fixed in R2011b.
Alexander
Alexander 2011-9-8
It is strange, but FIX_R2010b_COMPETLAYERAYER.zip is corrupted.
FIX_R2011a_COMPETLAYER.zip is normal.

类别

在 Help Center 和 File Exchange 中查找有关 Sequence and Numeric Feature Data Workflows 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by