Author

Issa Karambal

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Preprint Sep 2026

Stochastic Lanczos Quadrature for Computational Uncertainty in Linear Algebra

It is shown that a single Lanczos run yields both a matrix-free approximation of the inverse and a Gaussian distribution over the exact result, whose covariance measures what the truncation discarded and concentrates as the number of steps grows.

Hassan Fifen, Issa Karambal, Philipp Hennig · 0 citations

Review Aug 2026

ReliableNet: A Chance-Constrained Approach to Trustworthy Classification in Deep Learning

ReliableNet is the only method certified within the JCW budget for every dataset and seed in distribution, when compared against baselines spanning ERM, post-hoc calibration, conformal risk control, and selective prediction, and selective prediction.

Ange-Clément Akazan, Ineza Remy Mugenga, Abebe Geletu et al. · 0 citations