Why it matters

Ablations guide architecture. Skipping = building on assumptions.

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The architecture

Remove one component.

Retrain or fine-tune.

Measure metric delta.

Ablation study mathRemove/replaceone componentRetrain or FTcontrolled setupMeasure deltaattribute impactFoundational scientific method; every serious LLM paper reports ablations
Ablation study math.
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How it works end to end

Isolate variables.

Multiple seeds.

Report full metrics.