FA-98958 / Optimizer update state / Member archive
Nesterov update uses the ordinary momentum direction · case 03
Nesterov update uses the ordinary momentum direction.
Case contract
v_next=mu*v+g; p_next=p-lr*(g+mu*v_next).
Why this case matters
Optimizer implementations must associate each parameter with its own mathematically specified update state.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| initial lookahead | [8.0, 2.0] | [7, 2] | Failed |
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