Data-Driven Reachability with Scenario Optimization and the Holdout Method

Fuente: arXiv
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Autori principali: Dietrich, Elizabeth, Devonport, Rosalyn, Tu, Stephen, Arcak, Murat
Natura: Preprint
Pubblicazione: 2025
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author Dietrich, Elizabeth
Devonport, Rosalyn
Tu, Stephen
Arcak, Murat
author_facet Dietrich, Elizabeth
Devonport, Rosalyn
Tu, Stephen
Arcak, Murat
contents Reachability analysis is an important method in providing safety guarantees for systems with unknown or uncertain dynamics. Due to the computational intractability of exact reachability analysis for general nonlinear, high-dimensional systems, recent work has focused on the use of probabilistic methods for computing approximate reachable sets. In this work, we advocate for the use of a general purpose, practical, and sharp method for data-driven reachability: the holdout method. Despite the simplicity of the holdout method, we show -- on several numerical examples including scenario-based reach tubes -- that the resulting probabilistic bounds are substantially sharper and require fewer samples than existing methods for data-driven reachability. Furthermore, we complement our work with a discussion on the necessity of probabilistic reachability bounds. We argue that any method that attempts to de-randomize the bounds, by converting the guarantees to hold deterministically, requires (a) an exponential in state-dimension amount of samples to achieve non-vacuous guarantees, and (b) extra assumptions on the dynamics.
format Preprint
id arxiv_https___arxiv_org_abs_2504_06541
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Data-Driven Reachability with Scenario Optimization and the Holdout Method
Dietrich, Elizabeth
Devonport, Rosalyn
Tu, Stephen
Arcak, Murat
Systems and Control
Reachability analysis is an important method in providing safety guarantees for systems with unknown or uncertain dynamics. Due to the computational intractability of exact reachability analysis for general nonlinear, high-dimensional systems, recent work has focused on the use of probabilistic methods for computing approximate reachable sets. In this work, we advocate for the use of a general purpose, practical, and sharp method for data-driven reachability: the holdout method. Despite the simplicity of the holdout method, we show -- on several numerical examples including scenario-based reach tubes -- that the resulting probabilistic bounds are substantially sharper and require fewer samples than existing methods for data-driven reachability. Furthermore, we complement our work with a discussion on the necessity of probabilistic reachability bounds. We argue that any method that attempts to de-randomize the bounds, by converting the guarantees to hold deterministically, requires (a) an exponential in state-dimension amount of samples to achieve non-vacuous guarantees, and (b) extra assumptions on the dynamics.
title Data-Driven Reachability with Scenario Optimization and the Holdout Method
topic Systems and Control
url https://arxiv.org/abs/2504.06541