Drawing Network out of .net file

[Gurumurti Maharana]

Hi All ,
If I have to draw a NN diagram which we get in the .net file after training.
How can we go about ? Can any one explain for the XOR problem ?
basically how we draw all the I/P and O/P s in the NN?
What to do with the hidden neuron ?
Thanks with Regards.

[Fábio Blessa]

Hi,

I think you should read more about ANN, in order to put it to work
well you need some theoretical foundation.

The .net file saves your NN, so you can train it and save it so later
you can load it to be used again.

To define all the Inputs and Outputs you can use the following function:

struct fann *ann = fann_create_standard(num_layers, num_input,
num_neurons_hidden, num_output);

But I advise you to read a bit more at FANN website. The tutorials and
references are well described and easy to understand.

Play a bit with examples...

About the hidden neurons:

"The hidden layers connect the input and the output layers: in our
case, we will use only one hidden layer, which can have as much hidden
neurons as the user wants.
The number of hidden neurons has to be carefully specified, as the
level of abstraction, the speed and the learning capability depend on
this value.
Over-fitting is a common error when using ANNs where the number of
hidden neurons is overestimated, which degrades the generalization
capability."

Br,

Fábio



On Sun, Oct 10, 2010 at 6:06 PM, Gurumurti Maharana <

Post by Gurumurti Maharana
Hi All ,
If I have to draw a NN diagram which we get in the .net file after
training. How can we go about ? Can any one explain for the XOR problem ?
basically how we draw all the I/P and O/P s in the NN?
What to do with the hidden neuron ?
Thanks with Regards.
--
Gurumurti L Maharana
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[Ambrosio Ferrero Rouche]

Hi Gurumurti,

I suggest you to get hold of the book "Introduction to the theory of neural computation" by John Hertz before playing around with NN algorithms. In this book you can also find a good analysis of the XOR problem (basically this function is not linearly separable and it can't be solved by a single layer network). There's also a section of the book dedicated to discuss the necessary number of hidden units for a net. I hope this helps,

Antonio.

-------- Original-Nachricht --------

Datum: Sun, 10 Oct 2010 22:36:08 +0530
Betreff: [Fann-general] Drawing Network out of .net file
Hi All ,
If I have to draw a NN diagram which we get in the .net file after training.
How can we go about ? Can any one explain for the XOR problem ?
basically how we draw all the I/P and O/P s in the NN?
What to do with the hidden neuron ?
Thanks with Regards.
--
Gurumurti L Maharana