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Verifying the Safety of Autonomous Systems with Neural Network Controllers

Verifying the Safety of Autonomous Systems with Neural Network Controllers This article addresses the problem of verifying the safety of autonomous systems with neural network (NN) controllers. We focus on NNs with sigmoid/tanh activations and use the fact that the sigmoid/tanh is the solution to a quadratic differential equation. This allows us to convert the NN into an equivalent hybrid system and cast the problem as a hybrid system verification problem, which can be solved by existing tools. Furthermore, we improve the scalability of the proposed method by approximating the sigmoid with a Taylor series with worst-case error bounds. Finally, we provide an evaluation over four benchmarks, including comparisons with alternative approaches based on mixed integer linear programming as well as on star sets. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ACM Transactions on Embedded Computing Systems (TECS) Association for Computing Machinery

Verifying the Safety of Autonomous Systems with Neural Network Controllers

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References (64)

Publisher
Association for Computing Machinery
Copyright
Copyright © 2020 ACM
ISSN
1539-9087
eISSN
1558-3465
DOI
10.1145/3419742
Publisher site
See Article on Publisher Site

Abstract

This article addresses the problem of verifying the safety of autonomous systems with neural network (NN) controllers. We focus on NNs with sigmoid/tanh activations and use the fact that the sigmoid/tanh is the solution to a quadratic differential equation. This allows us to convert the NN into an equivalent hybrid system and cast the problem as a hybrid system verification problem, which can be solved by existing tools. Furthermore, we improve the scalability of the proposed method by approximating the sigmoid with a Taylor series with worst-case error bounds. Finally, we provide an evaluation over four benchmarks, including comparisons with alternative approaches based on mixed integer linear programming as well as on star sets.

Journal

ACM Transactions on Embedded Computing Systems (TECS)Association for Computing Machinery

Published: Dec 7, 2020

Keywords: Neural network verification

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