no code implementations • 24 May 2022 • Đorđe Žikelić, Mathias Lechner, Krishnendu Chatterjee, Thomas A. Henzinger
In this work, we address the problem of learning provably stable neural network policies for stochastic control systems.
no code implementations • 15 Apr 2022 • Mathias Lechner, Alexander Amini, Daniela Rus, Thomas A. Henzinger
This work revisits the robustness-accuracy trade-off in robot learning by systematically analyzing if recent advances in robust training methods and theory in conjunction with adversarial robot learning can make adversarial training suitable for real-world robot applications.
no code implementations • 17 Dec 2021 • Mathias Lechner, Đorđe Žikelić, Krishnendu Chatterjee, Thomas A. Henzinger
We consider the problem of formally verifying almost-sure (a. s.) asymptotic stability in discrete-time nonlinear stochastic control systems.
1 code implementation • NeurIPS 2021 • Mathias Lechner, Đorđe Žikelić, Krishnendu Chatterjee, Thomas A. Henzinger
Bayesian neural networks (BNNs) place distributions over the weights of a neural network to model uncertainty in the data and the network's prediction.
1 code implementation • 18 Jul 2021 • Sophie Gruenbacher, Mathias Lechner, Ramin Hasani, Daniela Rus, Thomas A. Henzinger, Scott Smolka, Radu Grosu
Our algorithm solves a set of global optimization (Go) problems over a given time horizon to construct a tight enclosure (Tube) of the set of all process executions starting from a ball of initial states.
no code implementations • 15 Mar 2021 • Mathias Lechner, Ramin Hasani, Radu Grosu, Daniela Rus, Thomas A. Henzinger
Adversarial training is an effective method to train deep learning models that are resilient to norm-bounded perturbations, with the cost of nominal performance drop.
1 code implementation • 15 Dec 2020 • Thomas A. Henzinger, Mathias Lechner, Đorđe Žikelić
In this paper, we show that verifying the bit-exact implementation of quantized neural networks with bit-vector specifications is PSPACE-hard, even though verifying idealized real-valued networks and satisfiability of bit-vector specifications alone are each in NP.
1 code implementation • 13 Oct 2020 • Mathias Lechner, Ramin Hasani, Alexander Amini, Thomas A. Henzinger, Daniela Rus & Radu Grosu
A central goal of artificial intelligence in high-stakes decision-making applications is to design a single algorithm that simultaneously expresses generalizability by learning coherent representations of their world and interpretable explanations of its dynamics.
1 code implementation • 14 Sep 2020 • Anna Lukina, Christian Schilling, Thomas A. Henzinger
To address this challenge, we introduce an algorithmic framework for active monitoring of a neural network.
no code implementations • 25 May 2020 • Parand Alizadeh Alamdari, Guy Avni, Thomas A. Henzinger, Anna Lukina
Machine learning and formal methods have complimentary benefits and drawbacks.
1 code implementation • 20 Nov 2019 • Thomas A. Henzinger, Anna Lukina, Christian Schilling
Neural networks have demonstrated unmatched performance in a range of classification tasks.