Author

De-Wen Qiao

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#machine learning Preprint Sep 2026

Certified Against Which Oracle? Execution Labels Set the Reported Risk of Conformal Abstention for Text-to-SQL

A conformal abstention certificate for text-to-SQL is only as truthful as the correctness labels it is calibrated on. The uncertainty pipelines that read confidence off execution consistency take those labels from the single database a benchmark ships, an oracle known to be lenient. We run a preregistered intervention...

Jia-Miao Liu, De-Wen Qiao, Yu Zhang et al. · 0 citations

Preprint Aug 2026

Certify or Refuse: A Cross-Model Map for Selective Risk Control with Coverage Floors under Covariate Shift

Under bounded-ratio covariate shift the authors prove the Floor Certification Map: once that floor must be certified alongside the selection-conditioned risk $\alpha$, certification acquires a feasibility frontier and a two-resource complexity map, additive up to constants.

Jia-Miao Liu, De-Wen Qiao, Yu Zhang et al. · 0 citations