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Author

Thiago Ramos

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#machine learning Preprint Sep 2026

ReCIRC: Rectified Conformal Risk Control

Many applications of black-box predictive models require controlling task-relevant error rates, such as missed lesion pixels in segmentation or missed labels in multilabel classification. Conformal risk control (CRC; Angelopoulos et al., arXiv:2208.02814) gives distribution-free guarantees for such losses, but it calib...

B. M. Resende, Helton Graziadei, Thiago Ramos et al. · 0 citations
#machine learning Preprint Sep 2026

Learning Conditional Expectation Operators via Functional Newton Updates

We introduce the Functional Spectral-Newton Method (FSNM) for learning the leading singular structure of a conditional expectation operator without fixing a basis or reproducing kernel Hilbert space. FSNM fits a low-rank representation of the centered joint-to-product density ratio kernel by alternating functional Newt...

Thiago Ramos, A. Frohlich, Daniela Perazzo et al. · 0 citations

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