FA-98963 / Optimizer update state / Member archive
Momentum state stores the descent direction rather than gradient history · case 03
Momentum state stores the descent direction rather than gradient history.
Case contract
State stores gradient-direction velocity; update p-lr*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 |
|---|---|---|---|
| positive input | [7.0, -2.0] | [3, 2] | Failed |
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