Muriel Felipe Pérez-Ortiz's scientific contributions

Publications (2)

Preprint
Full-text available
We study worst-case growth-rate optimal (GROW) E-variables for hypothesis testing between two group models. If the underlying group G acts freely on the observation space, there exists a maximally invariant statistic of the data. We show that among all E-statistics, invariant or not, the likelihood ratio of the maximally invariant is GROW and that...
Preprint
Full-text available
We introduce the safe log rank test, a version of the log rank test that can retain type-I error guarantees under optional stopping and continuation. It allows for effortless combination of data from different trials while keeping type-I error guarantees, and can be extended to define always-valid confidence intervals. The test is an instance of th...