Source Exchangeability
A key assumption in statistical hypothesis testing stating that, under the null hypothesis, the document score distributions of all sources are exchangeable, which permits the score distribution of known non-participating sources to be used to calibrate p-values.
Timeline (last 90 days)
Under the source exchangeability assumption, SCF's calibrated decision rule provides finite-sample Type-I error control.
The source exchangeability assumption means that under the null hypothesis, the document score distributions of all sources (including participating and non-participating sources) are exchangeable, i.e., their joint distribution is unaffected by permutations of source labels.
In practical audits, source exchangeability may hold approximately due to heterogeneity among data sources, but if it is severely violated, the error control guarantee of the calibrated rule will weaken.
All Facts (3)
Under the source exchangeability assumption, SCF's calibrated decision rule provides finite-sample Type-I error control.
50%UnverifiedThe source exchangeability assumption means that under the null hypothesis, the document score distributions of all sources (including participating and non-participating sources) are exchangeable, i.e., their joint distribution is unaffected by permutations of source labels.
50%UnverifiedIn practical audits, source exchangeability may hold approximately due to heterogeneity among data sources, but if it is severely violated, the error control guarantee of the calibrated rule will weaken.
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