Make a equation with weight and bias in ANN

Hello guys,

I'm currently making a ANN which is one hidden layer with 8 neurons, and one output layer with 1 neurons.

I wanna make the equation of prediction so that I can get the value when the new input value comes.

I've been using Artificial Neural Network tool box, and here is my guess.

Input value X

Layer 1 : y1 = Sigmoid(X*W1+b1)

Layer 2 : y2 = y1*W2+b2

However, When I doing like this, the output value is different with model.

How can I use the weights and bias in equation?

Thanks.

Answer 1

[Vineet Joshi]

Hi

When you create a neural network, the weights and bias are usually randomly initialized (folllowing some distribution).

You can set weights and bias by using the following functions.

Separate biases and weight values from weight/bias vector

Set all network weight and bias values with single vector

Regards

[sangmin yang]

oh, in that case, I already got it.

I just wanna make a equation using weights and bias which are one of the result of my NN network.

Thanks