Perceptron: should w_0 (bias) be updated?

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Perceptron: should w_0 (bias) be updated?

07-12-2012, 02:40 PM

fredrmueller@gmail.com fredrmueller@gmail.com is offline

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Join Date: Jul 2012

Location: Cambridge, MASS

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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 zero-th weight (the threshold/bias). Is this correct?

Thanks,

-Fred

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