YEAST: Yet Another Sequential Test

Fuente: arXiv
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Bibliographic Details
Main Authors: Kurennoy, Alexey, Dodin, Majed, Gurbanov, Tural, Ramallo, Ana Peleteiro
Format: Preprint
Published: 2024
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author Kurennoy, Alexey
Dodin, Majed
Gurbanov, Tural
Ramallo, Ana Peleteiro
author_facet Kurennoy, Alexey
Dodin, Majed
Gurbanov, Tural
Ramallo, Ana Peleteiro
contents Online evaluation of machine learning models is typically conducted through A/B experiments. Sequential statistical tests are valuable tools for analysing these experiments, as they enable researchers to stop data collection early without increasing the risk of false discoveries. However, existing sequential tests either limit the number of interim analyses or suffer from low statistical power. In this paper, we introduce a novel sequential test designed for continuous monitoring of A/B experiments. We validate our method using semi-synthetic simulations and demonstrate that it outperforms current state-of-the-art sequential testing approaches. Our method is derived using a new technique that inverts a bound on the probability of threshold crossing, based on a classical maximal inequality.
format Preprint
id arxiv_https___arxiv_org_abs_2406_16523
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle YEAST: Yet Another Sequential Test
Kurennoy, Alexey
Dodin, Majed
Gurbanov, Tural
Ramallo, Ana Peleteiro
Methodology
Online evaluation of machine learning models is typically conducted through A/B experiments. Sequential statistical tests are valuable tools for analysing these experiments, as they enable researchers to stop data collection early without increasing the risk of false discoveries. However, existing sequential tests either limit the number of interim analyses or suffer from low statistical power. In this paper, we introduce a novel sequential test designed for continuous monitoring of A/B experiments. We validate our method using semi-synthetic simulations and demonstrate that it outperforms current state-of-the-art sequential testing approaches. Our method is derived using a new technique that inverts a bound on the probability of threshold crossing, based on a classical maximal inequality.
title YEAST: Yet Another Sequential Test
topic Methodology
url https://arxiv.org/abs/2406.16523