Perceptron: should w_0 (bias) be updated?
The zeroth term is just a clever way to simplify the notation by adding the threshold/bias term as another term in the sum. The value of the threshold/bias, however, is not an observed quantity, though  it was chosen. So I am assuming that when updating the weights, we should NOT update the zeroth weight (the threshold/bias). Is this correct?
Thanks,
Fred
