For the linear regression we identified the cost function to be 1/2m of sum of squares of the differences of actual and predicted values. Then the gradient function was calculated by taking the partial derivative of this cost function by “w” and by “b” – and we got the gradient equation for w and b…

Why the linear regression and classification have identical Gradient Function?

Course Q&A Machine Learning Specialization Supervised ML: Regression and Classification

rmwkwok February 8, 2023, 7:32am 2

For both linear regression and logistic regression, their derivatives of cost with respect to w and b happen to have the same form. Did you try to carry out the derivatives yourself? Here is a very similar discussion.

Raymond

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Why the linear regression and classification have identical Gradient Function?

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