I am new to NN. I was getting my hands on MNIST Handwritten Dataset. They have specified the error percentage for every method they adopted in a tabular form. Here is link to the page. In NN section they have specified like :
3-layer NN, 300+100 hidden units
2-layer NN, 300 hidden units, mean square error
what does 3 layers mean ? is it
InputLayer+HiddenLayer+OutputLayer
OR
InputLayer + 3 Hidden Layer+ outputLayer
Also what is the meaning of 300+100 hidden units. Specifing two numbers 300+100 indicates one hidden layer should contain 300 units
and next HiddenLayer should contain 100 units
.
If this what is meant then why 3 Layer NN ?
The input layer isn't counted in this notation, so 3 layer mean 2 hidden layers and 1 output layer. So in this case :
3-layer NN, 300+100 hidden units
means the following architecture :
Input layer
Hidden layer of 300 units
Hidden layer of 100 units
Output layer
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