ML Stanford Online Class 2011
Sample (from 193 notes)
|Front||If the angle between the two vectors v and u is greater than 90°, what does p (the projection of u onto v or v onto u) looks like?|
|Back||p will be negative:|
|Front||Numerical gradient checking is simply put [...]|
|Back||Numerical gradient checking is simply put an approximation of the gradient by taking 2 points and calculating the line's coefficient, and then compare to the real derivation found by back propagation.Alternative answer: a verification if one's implementation of back propagation is bug-free|
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