Bellman Value Decomposition for Task Logic in Safe Optimal Control

Fuente: arXiv
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Hauptverfasser: Sharpless, William, So, Oswin, Hirsch, Dylan, Herbert, Sylvia, Fan, Chuchu
Format: Preprint
Veröffentlicht: 2026
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author Sharpless, William
So, Oswin
Hirsch, Dylan
Herbert, Sylvia
Fan, Chuchu
author_facet Sharpless, William
So, Oswin
Hirsch, Dylan
Herbert, Sylvia
Fan, Chuchu
contents Real-world tasks involve nuanced combinations of goal and safety specifications. In high dimensions, the challenge is exacerbated: formal automata become cumbersome, and the combination of sparse rewards tends to require laborious tuning. In this work, we consider the innate structure of the Bellman Value as a means to naturally organize the problem for improved automatic performance. Namely, we prove the Bellman Value for a complex task defined in temporal logic can be decomposed into a graph of Bellman Values, connected by a set of well-known Bellman equations (BEs): the Reach-Avoid BE, the Avoid BE, and a novel type, the Reach-Avoid-Loop BE. To solve the Value and optimal policy, we propose VDPPO, which embeds the decomposed Value graph into a two-layer neural net, bootstrapping the implicit dependencies. We conduct a variety of simulated and hardware experiments to test our method on complex, high-dimensional tasks involving heterogeneous teams and nonlinear dynamics. Ultimately, we find this approach greatly improves performance over existing baselines, balancing safety and liveness automatically.
format Preprint
id arxiv_https___arxiv_org_abs_2602_19532
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Bellman Value Decomposition for Task Logic in Safe Optimal Control
Sharpless, William
So, Oswin
Hirsch, Dylan
Herbert, Sylvia
Fan, Chuchu
Robotics
Systems and Control
Real-world tasks involve nuanced combinations of goal and safety specifications. In high dimensions, the challenge is exacerbated: formal automata become cumbersome, and the combination of sparse rewards tends to require laborious tuning. In this work, we consider the innate structure of the Bellman Value as a means to naturally organize the problem for improved automatic performance. Namely, we prove the Bellman Value for a complex task defined in temporal logic can be decomposed into a graph of Bellman Values, connected by a set of well-known Bellman equations (BEs): the Reach-Avoid BE, the Avoid BE, and a novel type, the Reach-Avoid-Loop BE. To solve the Value and optimal policy, we propose VDPPO, which embeds the decomposed Value graph into a two-layer neural net, bootstrapping the implicit dependencies. We conduct a variety of simulated and hardware experiments to test our method on complex, high-dimensional tasks involving heterogeneous teams and nonlinear dynamics. Ultimately, we find this approach greatly improves performance over existing baselines, balancing safety and liveness automatically.
title Bellman Value Decomposition for Task Logic in Safe Optimal Control
topic Robotics
Systems and Control
url https://arxiv.org/abs/2602.19532