FAILURE MAP
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FA-98974 / Optimizer update state / Member archive

Adam second moment keeps a signed gradient · case 04

Adam second moment keeps a signed gradient.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

v_next=b2*v+(1-b2)*g*g.

Why this case matters

Optimizer implementations must associate each parameter with its own mathematically specified update state.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixtureActualExpectedOutcome
positive gradient2.08Failed

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