3 papers
cs.CR2026
Stickel-type key exchange with hidden subspaces
Fintan Costello, Paul Watts
We give a witness-finding cryptanalysis of Stickel-type key exchange schemes, which involve two-sided multiplication of matrices over , where these matri…
cs.LG2026
Towards Provably Fair Machine Learning: Bayesian Approaches For Consistent and Transparent Predictions
Owen O'Neill, Fintan Costello
ML classifiers deployed in high-stakes domains produce predictions whose quality varies systematically across subgroups. For granular subgroups defined by intersections of multiple…
stat.ME2025
How to Tell When a Result Will Replicate: Significance and Replication in Distributional Null Hypothesis Tests
Fintan Costello, Paul Watts
There is a well-known problem in Null Hypothesis Significance Testing: many statistically significant results fail to replicate in subsequent experiments. We show that this problem…