#1




Question on Gradient
For gradient descent in Q56, is the gradient a vector consisting of the partial derivatives wrt u and the partial derivative wrt v or is it the derivative wrt to both u and v?

#2




Re: Question on Gradient
It is the former, i.e., a vector whose first component is the partial derivative of E wrt u, and the second component is the partial derivative of E wrt v.

#3




Re: Question on Gradient
Got it!
I have another question: Are you supposed to update the value of the point after updating the weights? I don't see that in the algorithm on p. 95. 
#4




Re: Question on Gradient
Quote:
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#5




Re: Question on Gradient
ah, the point (u,v) = (1,1) is the initial weight?

#6




Re: Question on Gradient
you are right!

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