Add an Example for DeepNeuralNetworkLearning Class

[fsps60312]

Please add an example for DeepNeuralNetworkLearning Class.

TODO (optional): Describe a specific scenario you would like to see addressed.

Help Topic: http://accord-framework.net/docs/html/T_Accord_Neuro_Learning_DeepNeuralNetworkLearning.htm

[fsps60312]

I ran the code with 3 lines:

Accord.Neuro.Networks.DeepBeliefNetwork neuroNetwork = new Accord.Neuro.Networks.DeepBeliefNetwork(2, 2);
Accord.Neuro.Learning.DeepNeuralNetworkLearning deepLearning = new Accord.Neuro.Learning.DeepNeuralNetworkLearning(neuroNetwork);
deepLearning.Run(new double[2], new double[2]);

It crashed with NullReferenceException and I don't know why.

[MaddalenaTech]

IT goes null because you got to assign a learning algorithm:

var neuroNetwork = new Accord.Neuro.Networks.DeepBeliefNetwork(2, 2);
var deepLearning = new Accord.Neuro.Learning.DeepNeuralNetworkLearning(neuroNetwork);
deepLearning.Algorithm = (activationNetwork, index) => new BackPropagationLearning(activationNetwork);

deepLearning.Run(new double[2], new double[2]);

[cesarsouza]

The Accord.Neuro namespace will be replaced by https://github.com/cesarsouza/keras-sharp. This issue might not be relevant once this happens, so I am closing it for now.