Can cost function or gradient descent be a negative value

Course Q&A Machine Learning Specialization Supervised ML: Regression and Classification
1

Can cost function or gradient descent be a negative value, because it shown in a course video.

2

Cost cannot be negative. If you see that in one of the videos, please post a screen capture image showing the title and time mark.

I don’t understand what you mean by “can gradient descent be a negative value”.

3

Thank you, actually its not a squared error cost…

4

As I said, cost cannot be negative - by definition.

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