03 Checkpoint: Production and gradients

Content and key concepts

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Eight reviews of the mechanism
Threshold: 7 out of 8. without a timer. Balls are given for answers, not for visits. This is a local self-check; the decisions will be shown after dispatch.
1. Production f(x) describes ...
Value of the function itself
Local inclination
Average loss for all data
2. When ,f/x, what do they do with independent y?
Fixed
Replaced
They always do.
3. The anti-gradient guarantees a smooth reduction f...
Any move.
With a fairly small positive step and a non-zero g
Even at zero g strict
4. For J shape [exit, exit] backward is equal to...
Jg always
Jᵀg
J+g
5. Production x2 ax=2?
Your numerical response
6. (x2+3y2)/y at(2.1)?
Your numerical response
7. A new loss x2+3y2 after step 1 of(2.1)?
Your numerical response
8. Production (2x+1)2 ax=2?
Your numerical response
The result will appear after all the answers have been sent.
Research and explain
Compare linear approach and exact answer at (.01.02), then reduce 10 times. Explain the order of the remainder; for chain, find the error in the code that rewrites the gradient of the common node.
First, shape the hypothesis, then change one parameter. Compare the numbers to the formula; state the extreme case and the limit of applicability. The free conclusion is not evaluated by a dummy automatic score.