Safe Control with Learned Certificates: A Survey of Neural Lyapunov, Barrier, and Contraction methods
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Abstract (arXiv)
Learning-enabled control systems have demonstrated impressive empirical performance on challenging control problems in robotics, but this performance comes at the cost of reduced transparency and lack of guarantees on the safety or stability of the learned controllers. In recent years, new techniques have emerged to provide these guarantees by learning certificates alongside control policies -- these certificates provide concise, data-driven proofs that guarantee the safety and stability of the learned control system. These methods not only allow the user to verify the safety of a learned controller but also provide supervision during training, allowing safety and stability requirements to influence the training process itself. In this paper, we provide a comprehensive survey of this rapidly developing field of certificate learning. We hope that this paper will serve as an accessible introduction to the theory and practice of certificate learning, both to those who wish to apply these tools to practical robotics problems and to those who wish to dive more deeply into the theory of learning for control.
Key facts. Cited by 148 papers in the map (data through 7 Oct 2026). First posted on arXiv 23 Feb 2022.
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Citing papers per year: 2022: 5; 2023: 34; 2024: 46; 2025: 34; 2026: 29.
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- 2023Toward General-Purpose Robots via Foundation Models: A Survey and Meta-Analysiscited by 99
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- 2023Direct Parameterization of Lipschitz-Bounded Deep Networkscited by 49
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- 2023Physics-Informed Neural Network Lyapunov Functions: PDE Characterization, Learning, and Verificationcited by 20
- 2022Backward Reachability Analysis of Neural Feedback Loops: Techniques for Linear and Nonlinear Systemscited by 18
- 2023Closed-loop Analysis of Vision-based Autonomous Systems: A Case Studycited by 18
- 2022Learning Riemannian Stable Dynamical Systems via Diffeomorphismscited by 17
- 2023AutoCost: Evolving Intrinsic Cost for Zero-violation Reinforcement Learningcited by 16
38 more
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- 2024Hamilton-Jacobi Reachability in Reinforcement Learning: A Surveycited by 11
- 2022Temporal Logic Imitation: Learning Plan-Satisficing Motion Policies from Demonstrationscited by 10
- 2023Online Control Barrier Functions for Decentralized Multi-Agent Navigationcited by 10
- 2024LyZNet: A Lightweight Python Tool for Learning and Verifying Neural Lyapunov Functions and Regions of Attractioncited by 10
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- 2024Safety Filters for Black-Box Dynamical Systems by Learning Discriminating Hyperplanescited by 8
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- 2025How to Train Your Latent Control Barrier Function: Smooth Safety Filtering Under Hard-to-Model Constraintscited by 7
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50 most cited of 148 All 148 (JSON)
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- 2026End-to-End Learning of Safe Optimal Feedback Control in High Dimensions with Control Barrier Function Layers22 Jul 2026
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- 2026ShardNet: Training Neural Controllers with Hard, Non-Convex Constraints29 Jun 2026
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- 2026Certificate-Guided Evaluation of Reinforcement Learning Generalization30 May 2026
- 2026Bridging Control with Neural Network Verifier alpha-beta-CROWN: A Tutorial26 May 2026
- 2026k-Inductive Neural Barrier Certificates for Unknown Nonlinear Dynamics19 May 2026
- 2026Efficient Verification of Neural Control Barrier Functions with Smooth Nonlinear Activations8 May 2026
- 2026Safety Certification is Classification7 May 2026
- 2026Set-Based Training of Neural Barrier Certificates for Safety Verification of Dynamical Systems4 May 2026
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- 2025MSACL: Multi-Step Actor-Critic Learning with Lyapunov Certificates for Exponentially Stabilizing Control31 Dec 2025
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- 2025DeepKoopFormer: A Koopman Enhanced Transformer Based Architecture for Time Series Forecasting4 Aug 2025
- 2025Formal Verification of Neural Certificates Done Dynamically16 Jul 2025
- 2025Two-Stage Learning of Stabilizing Neural Controllers via Zubov Sampling and Iterative Domain Expansion2 Jun 2025
- 2025Accelerated Learning with Linear Temporal Logic using Differentiable Simulation1 Jun 2025
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- 2025Verifiable Safety Q-Filters via Hamilton-Jacobi Reachability and Multiplicative Q-Networks27 May 2025
50 newest of 148 All 148 (JSON)
- 2023Trajectory Generation, Control, and Safety with Denoising Diffusion Probabilistic Modelscited by 13
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- 2026Safer Trajectory Planning with CBF-guided Diffusion Model for Unmanned Aerial Vehiclescited by 0
- 2026TAIL-Safe: Task-Agnostic Safety Monitoring for Imitation Learning Policiescited by 0
- 2026Lyapunov Guidance: A Unified Framework for Stabilizing Generative Flowscited by 0
- 2026Lyapunov Guidance: A Unified Framework for Stabilizing Generative Flows15 Jul 2026
- 2026TAIL-Safe: Task-Agnostic Safety Monitoring for Imitation Learning Policies2 May 2026
- 2026Safer Trajectory Planning with CBF-guided Diffusion Model for Unmanned Aerial Vehicles19 Apr 2026
- 2026Contractive Diffusion Policies: Robust Action Diffusion via Contractive Score-Based Sampling with Differential Equations2 Jan 2026
- 2023Trajectory Generation, Control, and Safety with Denoising Diffusion Probabilistic Models27 Jun 2023
- 2022Temporal Logic Imitation: Learning Plan-Satisficing Motion Policies from Demonstrationscited by 10
- 2024Contractive Dynamical Imitation Policies for Efficient Out-of-Sample Recoverycited by 5
- 2025V-OCBF: Learning Safety Filters from Offline Data via Value-Guided Offline Control Barrier Functionscited by 5
- 2025Learning Conservative Neural Control Barrier Functions from Offline Datacited by 4
- 2025V-OCBF: Learning Safety Filters from Offline Data via Value-Guided Offline Control Barrier Functions11 Dec 2025
- 2025Learning Conservative Neural Control Barrier Functions from Offline Data1 May 2025
- 2024Contractive Dynamical Imitation Policies for Efficient Out-of-Sample Recovery10 Dec 2024
- 2022Temporal Logic Imitation: Learning Plan-Satisficing Motion Policies from Demonstrations9 Jun 2022
- 2024CBF-LLM: Safe Control for LLM Alignmentcited by 8
- 2025Control Barrier Function for Aligning Large Language Modelscited by 0
- 2025Control Barrier Function for Aligning Large Language Models5 Nov 2025
- 2024CBF-LLM: Safe Control for LLM Alignment28 Aug 2024
- 2023Toward General-Purpose Robots via Foundation Models: A Survey and Meta-Analysiscited by 99
- 2023The Safety Filter: A Unified View of Safety-Critical Control in Autonomous Systemscited by 77
- 2023Direct Parameterization of Lipschitz-Bounded Deep Networkscited by 49
- 2023Iterative Reachability Estimation for Safe Reinforcement Learningcited by 33
- 2024A Survey of Robotic Language Grounding: Tradeoffs between Symbols and Embeddingscited by 23
- 2022Safety Certification for Stochastic Systems via Neural Barrier Functionscited by 22
- 2023Physics-Informed Neural Network Lyapunov Functions: PDE Characterization, Learning, and Verificationcited by 20
- 2022Backward Reachability Analysis of Neural Feedback Loops: Techniques for Linear and Nonlinear Systemscited by 18
- 2023Closed-loop Analysis of Vision-based Autonomous Systems: A Case Studycited by 18
- 2022Learning Riemannian Stable Dynamical Systems via Diffeomorphismscited by 17
- 2023AutoCost: Evolving Intrinsic Cost for Zero-violation Reinforcement Learningcited by 16
- 2023Neural Operators of Backstepping Controller and Observer Gain Functions for Reaction-Diffusion PDEscited by 16
12 most cited of 132 All 132 (JSON)
- 2026Safe-by-Design Learning via Energy-based Neural Networks29 Sep 2026
- 2026Learning Provable Neural Network Observer for Uncertain Dynamical Systems25 Sep 2026
- 2026VertexCBF: Improving Neural Control Barrier Functions via Vertex-Restricted Control Search11 Sep 2026
- 2026Humanoid Safe Stop via Learned Stoppability Value2 Sep 2026
- 2026Safety Screening for Voltage Control in Active Distribution Grids via Distributionally Robust Conformal Screening31 Aug 2026
- 2026Correcting Learning-based Perception for Safety16 Aug 2026
- 2026Safe and Robust Neural Policy Learning with Statistical Verification for Sim-to-Real Deployment in Robotics6 Aug 2026
- 2026End-to-End Learning of Safe Optimal Feedback Control in High Dimensions with Control Barrier Function Layers22 Jul 2026
- 2026ShardNet: Training Neural Controllers with Hard, Non-Convex Constraints29 Jun 2026
- 2026Memory-Efficient Meta-Reinforcement Learning for Adaptive Safety-Critical Control in Adversarial Spacecraft Proximity Operations16 Jun 2026
- 2026Neural Slack Variables for Shape Constraints11 Jun 2026
- 2026Certificate-Guided Evaluation of Reinforcement Learning Generalization30 May 2026
12 newest of 132 All 132 (JSON)