no code implementations • 28 Mar 2025 • Semaan Douglas Wehbe, Stanley Bak
Simulation-based approaches are among the most practical means to search for safety violations, bugs, and other unexpected events in cyber-physical systems (CPS).
1 code implementation • 28 Dec 2024 • Christopher Brix, Stanley Bak, Taylor T. Johnson, Haoze Wu
This report summarizes the 5th International Verification of Neural Networks Competition (VNN-COMP 2024), held as a part of the 7th International Symposium on AI Verification (SAIV), that was collocated with the 36th International Conference on Computer-Aided Verification (CAV).
no code implementations • 16 Jun 2024 • Yushen Huang, Ertai Luo, Stanley Bak, Yifan Sun
We present a reachability algorithm for linear systems with uncertain parameters and inputs using set propagation of polynomial zonotopes.
no code implementations • 31 May 2024 • Ali ArjomandBigdeli, Andrew Mata, Stanley Bak
We accomplish this by adding a level of abstraction to model the neural network controller.
no code implementations • 28 May 2024 • Feiyang Cai, Chuchu Fan, Stanley Bak
We demonstrate the effectiveness of our approach in terms of both accuracy and scalability using two case studies: an autonomous aircraft taxiing system and an advanced emergency braking system.
2 code implementations • 28 Dec 2023 • Christopher Brix, Stanley Bak, Changliu Liu, Taylor T. Johnson
This report summarizes the 4th International Verification of Neural Networks Competition (VNN-COMP 2023), held as a part of the 6th Workshop on Formal Methods for ML-Enabled Autonomous Systems (FoMLAS), that was collocated with the 35th International Conference on Computer-Aided Verification (CAV).
no code implementations • 17 May 2023 • Yushen Huang, Ertai Luo, Stanley Bak, Yifan Sun
The standard method for intersection checking with polynomial zonotopes is a two-part algorithm that overapproximates a polynomial zonotope with a regular zonotope and then, if the overapproximation error is deemed too large, splits the set and recursively tries again.
no code implementations • 14 Jan 2023 • Christopher Brix, Mark Niklas Müller, Stanley Bak, Taylor T. Johnson, Changliu Liu
This paper presents a summary and meta-analysis of the first three iterations of the annual International Verification of Neural Networks Competition (VNN-COMP) held in 2020, 2021, and 2022.
1 code implementation • 20 Dec 2022 • Mark Niklas Müller, Christopher Brix, Stanley Bak, Changliu Liu, Taylor T. Johnson
This report summarizes the 3rd International Verification of Neural Networks Competition (VNN-COMP 2022), held as a part of the 5th Workshop on Formal Methods for ML-Enabled Autonomous Systems (FoMLAS), which was collocated with the 34th International Conference on Computer-Aided Verification (CAV).
no code implementations • 16 Dec 2022 • Giorgian Borca-Tasciuc, Xingzhi Guo, Stanley Bak, Steven Skiena
Machine learning models are increasingly deployed for critical decision-making tasks, making it important to verify that they do not contain gender or racial biases picked up from training data.
no code implementations • 19 Oct 2022 • Niklas Kochdumper, Hanna Krasowski, Xiao Wang, Stanley Bak, Matthias Althoff
While reinforcement learning produces very promising results for many applications, its main disadvantage is the lack of safety guarantees, which prevents its use in safety-critical systems.
no code implementations • 6 Jul 2022 • Niklas Kochdumper, Christian Schilling, Matthias Althoff, Stanley Bak
We present a novel approach to efficiently compute tight non-convex enclosures of the image through neural networks with ReLU, sigmoid, or hyperbolic tangent activation functions.
1 code implementation • 17 Jan 2022 • Stanley Bak, Hoang-Dung Tran
Analysis of this system has spurred a significant body of research in the formal methods community on neural network verification.
3 code implementations • 31 Aug 2021 • Stanley Bak, Changliu Liu, Taylor Johnson
This report summarizes the second International Verification of Neural Networks Competition (VNN-COMP 2021), held as a part of the 4th Workshop on Formal Methods for ML-Enabled Autonomous Systems that was collocated with the 33rd International Conference on Computer-Aided Verification (CAV).
no code implementations • 25 May 2021 • Edward Kim, Stanley Bak, Parasara Sridhar Duggirala
To this end, we investigate two techniques for generating the template directions.
no code implementations • 3 May 2021 • Stanley Bak, Sergiy Bogomolov, Parasara Sridhar Duggirala, Adam R. Gerlach, Kostiantyn Potomkin
Reachability analysis of nonlinear dynamical systems is a challenging and computationally expensive task.
1 code implementation • 12 Apr 2020 • Hoang-Dung Tran, Xiaodong Yang, Diego Manzanas Lopez, Patrick Musau, Luan Viet Nguyen, Weiming Xiang, Stanley Bak, Taylor T. Johnson
For learning-enabled CPS, such as closed-loop control systems incorporating neural networks, NNV provides exact and over-approximate reachability analysis schemes for linear plant models and FFNN controllers with piecewise-linear activation functions, such as ReLUs.
2 code implementations • 12 Apr 2020 • Hoang-Dung Tran, Stanley Bak, Weiming Xiang, Taylor T. Johnson
Set-based analysis methods can detect or prove the absence of bounded adversarial attacks, which can then be used to evaluate the effectiveness of neural network training methodology.