Research

VeriVital People: Collaborators and Students

Research Interests

  • Cyber-physical systems: real-time, networked embedded control systems and software
  • Software engineering, formal methods, and formal verification
  • Safe autonomy: from sensing and perception through planning and control, encompassing computer vision reliability and neural network control systems (NNCS)
  • Safe and trustworthy artificial intelligence (AI): robust machine learning (ML), adversarial machine learning, symbolic (e.g., automata) learning, requirements and specifications in AI/ML (robustness, safety, security, etc.)
  • Hybrid systems and switched systems: hybrid automata, dynamics models (ODEs, DAEs, PDEs, etc.), reachability
  • Reliability and fault-tolerance
  • Application domains including transportation systems (aerospace and automotive), robotics, power and energy systems

Curriculum Vitae (CV) / Resume [pdf]

Research Support

We gratefully acknowledge the support of our ongoing/past research by AFOSR, AFRL, ARO, DARPA, Mathworks, NSA, NSF (CISE CCF/SHF, CNS/CPS, FMitF; ENG ECCS/EPCN), NVIDIA, ONR, Toyota Technical Center, and USDOT. More details on the projects are available in my CV.

Active & Ongoing Research Projects

Past & Completed Research Projects

Program Committees and Conference Organization

  • Symposium on AI Verification (SAIV): 2024
  • Conference on Uncertainty in Artificial Intelligence (UAI): 2024
  • IFAC Conference on Analysis and Design of Hybrid System (ADHS): 2024
  • NASA Formal Methods Symposium (NFM): 2024
  • IEEE Space Mission Challenges for Information Technology and IEEE Space Computing Conference (SMC-IT/SCC): 2024, 2023
  • International Symposium on Model Checking Software (SPIN): 2023
  • Workshop on Verification of Neural Networks (VNN) and Verification of Neural Networks Competition (VNN-COMP): 2024, 2023, 2022, 2021, 2020
  • International Conference on Computer-Aided Verification (CAV): 2022
  • AAAI Conference on Artificial Intelligence (AAAI): 2023 (SRAI: Special Track on Safe and Robust AI), 2022, 2021
  • Conference on Computer Vision and Pattern Recognition (CVPR): 2022, 2021
  • International Conference on Computer Vision (ICCV): 2021
  • ACM International Conference on Hybrid Systems: Computation and Control (HSCC) at CPS-IoT Week 2019, 2020, previously at CPSWeek 2018: 2023, 2022, 2020, HSCC 2019, HSCC 2018, CPS Week 2017: HSCC 2017, CPS Week 2016: HSCC 2016
  • ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS) at CPS Week 2018: 2023, 2022, 2021, 2020, ICCPS 2019, 2018
  • Workshop on Formal Methods for Autonomous Systems (FMAS): 2023, 2022, 2021, 2020, 2019
  • NASA Formal Methods Symposium 2020
  • International Workshop on Symbolic and Numerical Methods for Reachability Analysis (SNR), affiliated with ETAPS 2018 (Co-Chair): SNR 2018
  • ACM SIGBED International Conference on Embedded Systems(EMSOFT) at ESWeek 2017: 2023, 2017, Embedded Systems Week (ESWeek): 2016
  • Hybrid Systems Verification Competition (ARCH-COMP): 2023, 2022, 2021, 2020, 2019, 2018, 2017
  • IEEE Real-Time Systems Symposium (RTSS): 2016, 2015
  • International Conference on Parallel Processing (ICPP), Cyber-Physical Systems Track: 2016
  • ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS), Work-in-Progress/Demo Co-Chair at CPS Week 2016: 2016
  • Applied Verification for Continuous and Hybrid Systems (ARCH), Evaluation Chair, at CPS Week 2016 and CPS Week 2017: CPS Week 2015: 2015, 2016, 2017
  • IEEE Control and Modeling for Power Electronics (COMPEL): 2015
  • Runtime Verification (RV): 2014
  • Coordinated Science Lab Symposium on Emerging Topics in Control and Modelling: 2012

Research Links

Software and Tools

We develop a large amount of research software, particularly verification tool prototypes. Code is available on the Verivital Bitbucket account and the Verivital GitHub account. Particular tools are:

Publications

Note: My Google Scholar profile is often more up to date than this list, which I try to update about annually

Journal Articles (24)

2022
[J24], , , , , "Evaluation of Neural Network Verification Methods for Air to Air Collision Avoidance", In AIAA Journal of Air Transportation (JAT), vol. , no. , pp. , 2022, October. [bibtex] [pdf] [doi]
2021
[J23], , , , "Reachable Set Estimation for Neural Network Control Systems: A Simulation-Guided Approach", In IEEE Transactions on Neural Networks and Learning Systems, vol. 32, no. 5, pp. 1821-1830, 2021, May. [bibtex] [pdf] [doi]
[J22], , , , "Cyber-Physical Anomaly Detection in Microgrids Using Time-Frequency Logic Formalism", In IEEE Access, vol. 9, no. , pp. 20012-20021, 2021. [bibtex] [doi]
2020
[J21], , , "Verification Approaches for Learning-Enabled Autonomous Cyber-Physical Systems", In IEEE Design and Test, vol. , no. , pp. 1-1, 2020. [bibtex] [pdf] [doi]
2019
[J20], , , , , , "Hybrid Automata: From Verification to Implementation", In Int. Journal on Software Tools for Technology Transfer (STTT), Springer-Verlag, vol. 21, no. 1, Berlin, Heidelberg, pp. 87–104, 2019, February. [software / source code] [bibtex] [pdf] [doi]
[J19], , , , "Reachable Set Estimation and Verification for Neural Network Models of Nonlinear Dynamic Systems", In (Huafeng Yu, Xin Li, Richard M. Murray, S. Ramesh, Claire J. Tomlin, eds.), Springer International Publishing, pp. 123–144, 2019. [abstract] [bibtex] [pdf] [doi]
[J18], , , , , , , "Using crowd sourcing to locate and characterize conflicts for vulnerable modes", In Accident Analysis and Prevention, vol. 128, pp. 32–39, 2019. [abstract] [bibtex] [doi]
2018
[J17], , , "Verifying Safety and Persistence in Hybrid Systems Using Flowpipes and Continuous Invariants", In Journal of Automated Reasoning, 2018, Nov. [abstract] [bibtex] [pdf] [doi]
[J16], , , "Robust Exponential Stability and Disturbance Attenuation for Discrete-Time Switched Systems under Arbitrary Switching", In IEEE Transactions on Automatic Control (TAC), 2018, May. [bibtex] [pdf] [doi]
[J15], , , , "Signal Temporal Logic-based Attack Detection in DC Microgrids", In IEEE Transactions on Smart Grids (TSG), Institute of Electrical and Electronics Engineers (IEEE), 2018, April. [bibtex] [pdf] [doi]
[J14], , , "Output Reachable Set Estimation and Verification for Multi-Layer Neural Networks", In IEEE Transactions on Neural Networks and Learning Systems (TNNLS), 2018, March. [bibtex] [pdf] [doi]
[J13], , , "Reachable Set Computation and Safety Verification for Neural Networks with ReLU Activations", In In Submission, IEEE, 2018, September. [bibtex] [pdf]
[J12], , , "Nonconservative Lifted Convex Conditions for Stability of Discrete-Time Switched Systems under Minimum Dwell-Time Constraint", In IEEE Transactions on Automatic Control (TAC), 2018, September. [bibtex] [pdf] [doi]
[J11], , , , , "Cyber-Physical Specification Mismatches", In ACM Transactions on Cyber-Physical Systems (TCPS), 2018. [bibtex] [pdf] [doi]
2017
[J10], , , , "Model Validation of PWM DC-DC Converters", In IEEE Transactions on Industrial Electronics. (TIE), Institute of Electrical and Electronics Engineers (IEEE), 2017, June. [bibtex] [pdf] [doi]
[J9], , "Event-triggered control for continuous-time switched linear systems", In IET Control Theory and Applications, Institution of Engineering and Technology, 2017, February. [abstract] [bibtex] [pdf] [doi]
[J8], , , "Detection of False-data Injection Attacks in Cyber-Physical DC Microgrids", In IEEE Transactions on Industrial Informatics, vol. , no. , pp. , 2017, . [abstract] [bibtex] [pdf] [doi]
[J7], , , "Output Reachable Set Estimation for Switched Linear Systems and Its Application in Safety Verification", In IEEE Transactions on Automatic Control (TAC), 2017. [bibtex] [pdf] [doi]
[J6], , , , "Order-reduction abstractions for safety verification of high-dimensional linear systems", In Discrete Event Dynamic Systems (DEDS), 2017. [bibtex] [pdf] [doi]
2016
[J5], , , , , , , , "Guided Search for Hybrid Systems Based on Coarse-Grained Space Abstractions", In Software Tools for Technology Transfer (STTT), Springer, vol. 18, , pp. , 2016, August. [abstract] [software / source code] [bibtex] [pdf] [doi] [cites]
[J4], , , , "Real-Time Reachability for Verified Simplex Design", In ACM Transactions on Embedded Computing Systems (TECS), ACM, vol. 15, no. 2, New York, NY, USA, pp. 26:1–26:27, 2016, February. [bibtex] [pdf] [doi]
2015
[J3], , "Safe and Stabilizing Distributed Multi-Path Cellular Flows", In Theoretical Computer Science, Elsevier, vol. , no. , , pp. 1–46, 2015, February. [abstract] [software / source code] [bibtex] [pdf] [doi]
2014
[J2], , , "Virtual Prototyping for Distributed Control of a Fault-Tolerant Modular Multilevel Inverter for Photovoltaics", In IEEE Transactions on Energy Conversion, vol. 29, , pp. 841–850, 2014, December. (arxiv preprint) [abstract] [bibtex] [pdf] [doi] [cites]
2011
[J1], , "Safe Flocking in Spite of Actuator Faults using Directional Failure Detectors", In Journal of Nonlinear Systems and Applications, Watam Press Inc., vol. 2, no. 1-2, Waterloo, Ontario, Canada, pp. 73–95, 2011, April. (pdf (publisher), doi) [abstract] [bibtex] [pdf] [cites]

Conference Papers (59)

2024
[C59], , , "Formal Logic Enabled Personalized Federated Learning through Property Inference", In Proceedings of the 38th AAAI Conference on Artificial Intelligence (AAAI'24), vol. , no. , pp. , 2024, February. [bibtex] [pdf] [doi]
2023
[C58], , , , "NNV 2.0: the neural network verification tool", In International Conference on Computer Aided Verification (CAV), vol. , no. , pp. , 2023, july. [bibtex] [pdf] [doi]
[C57], , , , , "SUDS: Sanitizing Universal and Dependent Steganography", In 26th European Conference on Artificial Intelligence (ECAI), vol. , no. , pp. , 2023, September. [bibtex] [pdf] [doi]
2022
[C56], , , "Training Agents to Satisfy Timed and Untimed Signal Temporal Logic Specifications with Reinforcement Learning", In 20th International Conference on Software Engineering and Formal Methods (SEFM), vol. , no. , pp. , 2022, September. [bibtex] [pdf] [doi]
[C55], , "BehaVerify: Verifying Temporal Logic Specifications for Behavior Trees", In 20th International Conference on Software Engineering and Formal Methods (SEFM), vol. , no. , pp. , 2022, September. [bibtex] [pdf] [doi]
[C54], , , , , "Neural Network Repair with Reachability Analysis", In 20th International Conference on Formal Modeling and Analysis of Timed Systems (FORMATS), vol. , no. , pp. , 2022, September. [bibtex] [pdf] [doi]
[C53], , , , "Reachability Analysis of a General Class of Neural Ordinary Differential Equations", In 20th International Conference on Formal Modeling and Analysis of Timed Systems (FORMATS), vol. , no. , pp. , 2022, September. [bibtex] [pdf] [doi]
[C52], , , , , , "Physics Guided Neural Networks for Spatio-temporal Super-resolution of Turbulent Flows", In 38th Conference on Uncertainty in Artificial Intelligence (UAI), vol. , no. , pp. , 2022, August. [bibtex] [pdf]
[C51], , , , , "On Using Real-Time Reachability for the Safety Assurance of Machine Learning Controllers", In 2022 IEEE International Conference on Assured Autonomy (ICAA), vol. , no. , pp. 1-10, 2022. [bibtex] [pdf] [doi]
[C50], , , , "Zero-Shot Policy Transfer in Autonomous Racing: Reinforcement Learning vs Imitation Learning", In 2022 IEEE International Conference on Assured Autonomy (ICAA), vol. , no. , pp. 11-20, 2022. [bibtex] [pdf] [doi]
2021
[C49], , , , , , , "Partial Differential Equation Driven Dynamic Graph Networks for Predicting Stream Water Temperature", In 2021 IEEE International Conference on Data Mining (ICDM), vol. , no. , pp. 11-20, 2021, December. [bibtex] [pdf] [doi]
[C48], , , , , , , , "Robustness Verification of Semantic Segmentation Neural Networks using Relaxed Reachability", In 33rd International Conference on Computer-Aided Verification (CAV), Springer, 2021, July. [bibtex] [pdf]
[C47], , , , , , "Verification of Neural Network Compression of ACAS Xu Lookup Tables with Star Set Reachability", In AIAA Scitech 2021 Forum, AIAA, 2021, January. [bibtex] [pdf]
[C46], , , , "Assuring Learning-Enabled Components in Small Unmanned Aircraft Systems", In AIAA Scitech 2021 Forum, AIAA, 2021, January. [bibtex] [pdf] [doi]
[C45], , , , , , "Reachability Analysis of Deep ReLU Neural Networks Using Facet-Vertex Incidence", In Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control (HSCC), Association for Computing Machinery, New York, NY, USA, 2021. [bibtex] [pdf] [doi]
2020
[C44], , , , "Verification of Deep Convolutional Neural Networks Using ImageStars", In 32nd International Conference on Computer-Aided Verification (CAV), Springer, 2020, July. [bibtex] [pdf] [doi]
[C43], , , , , , , , "NNV: The Neural Network Verification Tool for Deep Neural Networks and Learning-Enabled Cyber-Physical Systems", In 32nd International Conference on Computer-Aided Verification (CAV), 2020, July. [bibtex] [pdf] [doi]
[C42], , , , "Improved Geometric Path Enumeration for Verifying ReLU Neural Networks", In 32nd International Conference on Computer-Aided Verification (CAV), 2020, July. [bibtex] [pdf] [doi]
[C41], , , , "SLEMI: Equivalence Modulo Input (EMI) Based Mutation of CPS Models for Finding Compiler Bugs in Simulink", In 42nd ACM/IEEE International Conference on Software Engineering (ICSE), 2020, May. [bibtex] [pdf]
2019
[C40], , , , , , , "Star-Based Reachability Analysis for Deep Neural Networks", In 23rd International Symposium on Formal Methods (FM'19) (, ed.), Springer International Publishing, 2019, October. [bibtex] [pdf]
[C39], , , , , "Safety Verification of Cyber-Physical Systems with Reinforcement Learning Control", In ACM SIGBED International Conference on Embedded Software (EMSOFT'19), ACM, 2019, October. [bibtex] [pdf]
[C38], , , , , "Reachability Analysis for High-Index Linear Differential Algebraic Equations (DAEs)", In 17th International Conference on Formal Modeling and Analysis of Timed Systems (FORMATS'19) (, ed.), Springer International Publishing, 2019, August. [bibtex] [pdf]
[C37], , , , , "Decentralized Real-Time Safety Verification for Distributed Cyber-Physical Systems", In Formal Techniques for Distributed Objects, Components, and Systems (FORTE'19) (Jorge A. Pérez, Nobuko Yoshida, eds.), Springer International Publishing, Cham, pp. 261–277, 2019, June. [abstract] [bibtex] [pdf]
[C36], , , , , , , "Cyber-physical Systems Virtual Organization: Active Resources: Enabling Reproducibility, Improving Accessibility, and Lowering the Barrier to Entry", In Proceedings of the 10th ACM/IEEE International Conference on Cyber-Physical Systems, ACM, New York, NY, USA, pp. 340–341, 2019, April. [bibtex] [pdf] [doi]
[C35], , , "Numerical Verification of Affine Systems with Up to a Billion Dimensions", In Proceedings of the 22Nd ACM International Conference on Hybrid Systems: Computation and Control, ACM, New York, NY, USA, pp. 23–32, 2019, April. [bibtex] [pdf] [doi]
2018
[C34], , , , "Reachability Analysis for One Dimensional Linear Parabolic Equation", In IFAC Conference on Analysis and Design of Hybrid Systems (ADHS 2018), IFAC, 2018, July. [bibtex] [pdf] [doi]
[C33], , , , "Mission Planning for Multiple Vehicles with Temporal Specifications using UxAS", In IFAC Conference on Analysis and Design of Hybrid Systems (ADHS 2018), IFAC, 2018, July. [bibtex] [pdf] [doi]
[C32], , , , "Reachable Set Estimation and Verification for a Class of Piecewise Linear Systems with Neural Network Controllers", In American Control Conference (ACC 2018), Special Session on Formal Methods in Controller Synthesis I, IEEE, 2018, June. [bibtex] [pdf]
[C31], , , , , , "Automatically Finding Bugs in a Commercial Cyber-Physical System Development Tool Chain With SLforge", In 40th International Conference on Software Engineering (ICSE 2018), ACM, 2018, May. [bibtex] [pdf] [doi]
2017
[C30], , , "Operational models of piecewise-smooth systems", In 17th ACM SIGBED International Conference on Embedded Software (EMSOFT 2017), 2017, October. [bibtex] [pdf] [doi]
[C29], , , , , "Hyperproperties of real-valued signals", In 15th ACM-IEEE International Conference on Formal Methods and Models for System Design (MEMOCODE 2017), IEEE, 2017, October. [bibtex] [pdf]
[C28], , "On Reachable Set Estimation for Discrete-Time Switched Linear Systems under Arbitrary Switching", In 30th IEEE American Control Conference (ACC 2017), 2017, july. [bibtex] [pdf] [doi]
[C27], , , "Verifying safety and persistence properties of hybrid systems using flowpipes and continuous invariants", In 9th NASA Formal Methods Symposium (NFM 2017), 2017, May. [bibtex] [pdf] [doi]
[C26], , , , , , "Abnormal Data Classification Using Time-Frequency Temporal Logic", In 20th Intl. Conf. on Hybrid Systems: Computation and Control (HSCC 2017), ACM, 2017, April. [bibtex] [pdf] [doi]
2016
[C25], , , "Decoupled simulating abstractions of non-linear ordinary differential equations", Chapter in Proceedings of the 21st International Symposium on Formal Methods (FM 2016), Limassol, Cyprus, 2016, December. [abstract] [bibtex] [pdf] [doi]
[C24], , , "Reachable Set Estimation and Control for Switched Linear Systems with Dwell-Time Restriction", In Proceedings of the 55th IEEE Conference on Decision and Control (CDC 2016), Las Vegas, NV, USA, 2016, December. [bibtex] [pdf] [doi]
[C23], , , , , , , , , , , , , , "Tutorial: Software Tools for Hybrid Systems Verification, Transformation, and Synthesis: C2E2, HyST, and TuLiP", In Proceedings of the IEEE Multi-Conference on Systems and Control (MSC 2016), Las Vegas, NV, USA, 2016, September. [bibtex] [pdf] [doi]
[C22], , , , , "Probabilistic Formal Verification of the SATS Concept of Operation", In Proceedings of the 8th NASA Formal Methods (NFM 2016) International Symposium (Sanjai Rayadurgam, Oksana Tkachuk, eds.), Springer International Publishing, pp. 191–205, 2016, june. [bibtex] [pdf] [doi]
[C21], , , , , "Scalable Static Hybridization Methods for Analysis of Nonlinear Systems", In 19th Intl. Conf. on Hybrid Systems: Computation and Control (HSCC 2016), ACM, 2016, April. [bibtex] [pdf] [doi]
2015
[C20], , "Periodically-Scheduled Controller Analysis using Hybrid Systems Reachability and Continuization", In 36th IEEE Real-Time Systems Symposium (RTSS 2015), IEEE Computer Society, San Antonio, Texas, 2015, December. [bibtex] [pdf]
[C19], , , , "Runtime Verification of Model-based Development Environments", In 15th International Conference on Runtime Verification (RV 2015), Vienna, Austria, 2015, September. [bibtex] [pdf]
[C18], , , "A Survey of Electrical and Electronic (E/E) Notifications for Motor Vehicles", In 24th NHTSA International Technical Conference on the Enhanced Safety of Vehicles (ESV), Gothenburg, Sweden, pp. 1–15, 2015, June. (publisher PDF) [abstract] [bibtex] [pdf] [doi] [cites]
[C17], , , "HyST: A Source Transformation and Translation Tool for Hybrid Automaton Models", In 18th International Conference on Hybrid Systems: Computation and Control (HSCC 2015), ACM, Seattle, Washington, 2015, April. (Hyst software tool) [software / source code] [bibtex] [pdf]
[C16], , , "Cyber-Physical Specification Mismatch Identification with Dynamic Analysis", In 6th International Conference on Cyber-Physical Systems (ICCPS 2015), ACM/IEEE, Seattle, Washington, 2015, April. (Hynger software tool) [software / source code] [bibtex] [pdf]
[C15], , , , "Verified Planar Formation Control Algorithms by Composition of Primitives", In AIAA SciTech, AIAA, Kissimmee, Florida, 2015, January. [bibtex] [pdf]
2014
[C14], , , , "Real-Time Reachability for Verified Simplex Design", In 35th IEEE Real-Time Systems Symposium (RTSS 2014), IEEE Computer Society, Rome, Italy, 2014, December. [slides] [bibtex] [pdf]
[C13], , "Anonymized Reachability of Hybrid Automata Networks", In Proceedings of the 12th International Conference on Formal Modeling and Analysis of Timed Systems (FORMATS 2014), Florence, Italy, pp. , 2014, September. [abstract] [bibtex] [pdf] [doi] [cites]
2013
[C12], , "Invariant Synthesis for Verification of Parameterized Cyber-Physical Systems with Applications to Aerospace Systems", In Proceedings of the AIAA Infotech at Aerospace Conference (AIAA Infotech 2013) (, ed.), AIAA, vol. , Boston, MA, pp. , 2013, August. [abstract] [bibtex] [pdf] [doi] [cites]
[C11], , , , , , , , "Abstraction-Based Guided Search for Hybrid Systems", In Proceedings of the 20th International SPIN Symposium on Model Checking of Software (SPIN 2013), Stony Brook, New York, USA, pp. , 2013, July. [abstract] [bibtex] [pdf] [doi] [cites]
[C10], , , "Reachability Analysis of Closed-Loop Switching Power Converters", In Proceedings of the 4th IEEE Power and Energy Conference at Illinois (PECI 2013), Urbana, Illinois, USA, pp. , 2013, February. [abstract] [bibtex] [pdf] [doi] [cites]
2012
[C9], , , , "Static and Dynamic Analysis of Timed Distributed Traces", In Proceedings of the 33rd IEEE Real-Time Systems Symposium (RTSS 2012), San Juan, Puerto Rico, pp. 173–182, 2012, December. [abstract] [bibtex] [pdf] [doi] [cites]
[C8], , , , , "Satellite Rendezvous and Conjunction Avoidance: Case Studies in Verification of Nonlinear Hybrid Systems", Chapter in Proceedings of the 18th International Conference on Formal Methods (FM 2012) (Dimitra Giannakopoulou, Dominique Méry, eds.), Springer Berlin Heidelberg, vol. 7436, Paris, France, pp. 252–266, 2012, August. [abstract] [bibtex] [pdf] [doi] [cites]
[C7], , "A Small Model Theorem for Rectangular Hybrid Automata Networks", In Proceedings of the IFIP International Conference on Formal Techniques for Distributed Systems, Joint 14th Formal Methods for Open Object-Based Distributed Systems and 32nd Formal Techniques for Networked and Distributed Systems (FORTE/FMOODS 2012), Stockholm, Sweden, pp. , 2012, June. (Best Paper Award for DisCoTec, Passel tool and specification source, Passel tool overview) [abstract] [software / source code] [bibtex] [pdf] [doi] [cites]
[C6], , "Parameterized Verification of Distributed Cyber-Physical Systems: An Aircraft Landing Protocol Case Study", In Proceedings of the 3rd ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS 2012), Beijing, China, pp. 161–170, 2012, April. (source code) [abstract] [bibtex] [pdf] [doi] [cites]
[C5], , , "Design Verification Methods for Switching Power Converters", In Proceedings of the 3rd IEEE Power and Energy Conference at Illinois (PECI 2012), Urbana, Illinois, USA, pp. 1–6, 2012, February. [abstract] [bibtex] [pdf] [doi] [cites]
2011
[C4], , , "Stability of Digitally Interconnected Linear Systems", In Proceedings of the 50th IEEE Conference on Decision and Control and European Control Conference (CDC ECC 2011), Orlando, Florida, USA, pp. 2687–2692, 2011, December. [abstract] [bibtex] [pdf] [doi] [cites]
[C3], , "Turbo-Alternator Stalling Protection using Available Power Estimate", In Proceedings of the 2nd Annual IEEE Power and Energy Conference at Illinois (PECI 2011), Urbana, Illinois, USA, 2011, February. (Best Paper Award) [abstract] [bibtex] [pdf] [doi] [cites]
2010
[C2], , "Safe Flocking in Spite of Actuator Faults", Chapter in 12th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS 2010) (Shlomi Dolev, Jorge Cobb, Michael Fischer, Moti Yung, eds.), Springer Berlin / Heidelberg, vol. 6366, pp. 588–602, 2010, September. [abstract] [bibtex] [pdf] [doi] [cites]
[C1], , , "Safe and Stabilizing Distributed Cellular Flows", In 30th IEEE International Conference on Distributed Computing Systems (ICDCS 2010), Genoa, Italy, pp. 577–578, 2010, June. [abstract] [bibtex] [pdf] [doi] [cites]

Workshop Papers (27)

2021
[W27], , , , , , , , , , "ARCH-COMP21 Category Report: Artificial Intelligence and Neural Network Control Systems (AINNCS) for Continuous and Hybrid Systems Plants", In 8th International Workshop on Applied Verification of Continuous and Hybrid Systems (ARCH21) (Goran Frehse, Matthias Althoff, eds.), EasyChair, vol. 80, pp. 90–119, 2021. [bibtex] [pdf] [doi]
[W26], "ARCH-COMP21 Repeatability Evaluation Report", In 8th International Workshop on Applied Verification of Continuous and Hybrid Systems (ARCH21) (Goran Frehse, Matthias Althoff, eds.), EasyChair, vol. 80, pp. 153–160, 2021. [bibtex] [pdf] [doi]
2019
[W25], , , , , , , "Parallelizable Reachability Analysis Algorithms for Feed-forward Neural Networks", In Proceedings of the 7th International Workshop on Formal Methods in Software Engineering (FormaliSE'19), IEEE Press, Piscataway, NJ, USA, pp. 31–40, 2019, May. [bibtex] [pdf] [doi]
[W24], , , , "Verification of Closed-loop Systems with Neural Network Controllers", In ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems (Goran Frehse, Matthias Althoff, eds.), EasyChair, vol. 61, pp. 201–210, 2019, April. [bibtex] [pdf] [doi]
[W23], "ARCH-COMP19 Repeatability Evaluation Report", In ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems (Goran Frehse, Matthias Althoff, eds.), EasyChair, vol. 61, pp. 162–169, 2019, April. [bibtex] [pdf] [doi]
[W22], , , , , , , "ARCH-COMP19 Category Report: Artificial Intelligence and Neural Network Control Systems (AINNCS) for Continuous and Hybrid Systems Plants", In ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems (Goran Frehse, Matthias Althoff, eds.), EasyChair, vol. 61, pp. 103–119, 2019, April. [bibtex] [pdf] [doi]
[W21], , , , , , , , , "Model-based Design for CPS with Learning-enabled Components", In Proceedings of the Workshop on Design Automation for CPS and IoT, ACM, New York, NY, USA, pp. 1–9, 2019, April. [bibtex] [doi]
[W20], , , , "Demo: A Design Studio for Verification Tools", In Proceedings of the Workshop on Design Automation for CPS and IoT, ACM, New York, NY, USA, pp. 60–61, 2019, April. [bibtex] [doi]
2018
[W19], , , , "Differential Algebraic Equations (DAEs) with Varying Index (Benchmark Proposal)", In 5th Applied Verification for Continuous and Hybrid Systems Workshop (ARCH), Oxford, UK, 2018, july. [bibtex] [pdf] [doi]
[W18], , , "Discrete-Space Analysis of Partial Differential Equations (PDEs) (Benchmark Proposal)", In 5th Applied Verification for Continuous and Hybrid Systems Workshop (ARCH), Oxford, UK, 2018, july. [bibtex] [pdf] [doi]
[W17], , "Continuous-Time Recurrent Neural Networks (CTRNNs) (Benchmark Proposal)", In 5th Applied Verification for Continuous and Hybrid Systems Workshop (ARCH), Oxford, UK, 2018, july. [bibtex] [pdf] [doi]
[W16], , , , , "A curated corpus of Simulink models for model-based empirical studies", In Proc. 4th International Workshop on Software Engineering for Smart Cyber-Physical Systems (SEsCPS), ACM, pp. 45–48, 2018, May. [bibtex] [pdf] [doi]
[W15], "ARCH-COMP18 Repeatability Evaluation Report", In ARCH18. 5th International Workshop on Applied Verification of Continuous and Hybrid Systems (Goran Frehse, ed.), EasyChair, vol. 54, pp. 128–134, 2018. [bibtex] [pdf] [doi]
2017
[W14], , , , "Computer-Aided Formal Verification of Power Electronics Circuits", In 8th International Workshop on Frontiers in Analog CAD (FAC), Frankfurt, Germany, 2017, july. [bibtex] [pdf]
[W13], "ARCH-COMP17 Repeatability Evaluation Report", In 4th Applied Verification for Continuous and Hybrid Systems Workshop (ARCH), Pittsburgh, PA, 2017, April. [bibtex] [pdf]
[W12], , , , "Distributed Autonomous Systems (Benchmark Proposal)", In 4th Applied Verification for Continuous and Hybrid Systems Workshop (ARCH), Pittsburgh, PA, 2017, April. [bibtex] [pdf]
[W11], , , "Reachability Analysis of Transformer-Isolated DC-DC Converters (Benchmark Proposal)", In 4th Applied Verification for Continuous and Hybrid Systems Workshop (ARCH), Pittsburgh, PA, 2017, April. [bibtex] [pdf]
2016
[W10], , , "CyFuzz: : A Differential Testing Framework for Cyber-Physical Systems Development Environments", In 6th International Workshop Workshop on Design, Modeling and Evaluation of Cyber Physical Systems (CyPhy 2016), Pittsburgh, PA, 2016, August. [bibtex] [pdf] [doi]
[W9], , , "Large-Scale Linear Systems from Order-Reduction (Benchmark Proposal)", In 3rd Applied Verification for Continuous and Hybrid Systems Workshop (ARCH), Vienna, Austria, 2016, April. [bibtex] [pdf]
[W8], , , "Charge Pump Phase-Locked Loops and Full Wave Rectifiers for Reachability Analysis (Benchmark Proposal)", In 3rd Applied Verification for Continuous and Hybrid Systems Workshop (ARCH), Vienna, Austria, 2016, April. [bibtex] [pdf]
[W7], , , "Non-linear Continuous Systems for Safety Verification (Benchmark Proposal)", In 3rd Applied Verification for Continuous and Hybrid Systems Workshop (ARCH), Vienna, Austria, 2016, April. [bibtex] [pdf]
2015
[W6], , , , "Quantified Bounded Model Checking for Rectangular Hybrid Automata", In 9th International Workshop on Constraints in Formal Verification (CFV 2015), Austin, Texas, 2015, November. [bibtex] [pdf]
[W5], , , "HyST: A Source Transformation and Translation Tool for Hybrid Automaton Models", In 1st International Workshop on Symbolic and Numerical Methods for Reachability Analysis (SNR 2015), Co-Located with the 27th International Conference on Computer Aided Verification (CAV 2015), San Francisco, California, 2015, July. [bibtex] [pdf]
[W4], , , "Benchmark: A Nonlinear Reachability Analysis Test Set from Numerical Analysis", In 2nd Applied Verification for Continuous and Hybrid Systems Workshop (ARCH 2015), Seattle, Washington, pp. , 2015, April. (model source code) [abstract] [bibtex] [pdf] [doi] [cites]
[W3], , , , "Benchmark Generator for Stratified Controllers of Tank Networks", In 2nd Applied Verification for Continuous and Hybrid Systems Workshop (ARCH 2015), Seattle, Washington, pp. , 2015, April. (model source code) [abstract] [bibtex] [pdf] [doi] [cites]
2014
[W2], , , , , , , "Model-Based Design and Analysis of a Reconfigurable Continuous-Culture Bioreactor (Work-in-Progress)", In Fourth ACM Workshop on Design, Modeling, and Evaluation of Cyber Physical Systems (CyPhy 2014), Berlin, Germany, pp. , 2014, April. (ACM Authorizer) [abstract] [bibtex] [pdf] [doi] [cites]
[W1], , "Benchmark: DC-to-DC Switched-Mode Power Converters (Buck Converters, Boost Converters, and Buck-Boost Converters)", In Applied Verification for Continuous and Hybrid Systems Workshop (ARCH 2014), Berlin, Germany, pp. , 2014, April. [abstract] [software / source code] [bibtex] [pdf] [doi] [cites]

Theses (2)

2013
[TH2], "Uniform Verification of Safety for Parameterized Networks of Hybrid Automata", PhD thesis, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, 2013, August. (doi) [abstract] [software / source code] [bibtex] [pdf] [cites]
2010
[TH1], "Fault-Tolerant Distributed Cyber-Physical Systems: Two Case Studies", Master's thesis, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA, 2010, May. (doi) [abstract] [bibtex] [pdf] [cites]

Technical Reports (1)

2010
[R1], , "Safe and Stabilizing Distributed Flocking In Spite of Actuator Faults", UILU-ENG-10-2204 (CRHC-10-02), University of Illinois at Urbana-Champaign, no. UILU-ENG-10-2204 (CRHC-10-02), Urbana, IL 61801, USA, 2010, May. [bibtex] [pdf]

Patents (1)

2015
[P1], , , , , , "Control of a component of a downhole tool", no. US 9222352, 2015, December. (DOI) [abstract] [bibtex] [pdf]

Demos/Posters/Abstracts (4)

2020
[D4], , , , "Demo: SLEMI: Finding Simulink Compiler Bugs through Equivalence Modulo Input (EMI)", 2020, May. [bibtex] [pdf]
2015
[D3], , , , "HyRG: a random generation tool for affine hybrid automata", Presented at 18th International Conference on Hybrid Systems: Computation and Control (HSCC 2015) Poster/Demo Session, 2015, April. (HyRG Software Tool) [software / source code] [bibtex] [pdf] [doi] [cites]
2009
[D2], , "Handling Failures in Cyber-Physical Systems: Potential Directions", Presented at RTSS 2009 PhD Student Forum, 2009, December. (Award for Most Interesting Cyber-Physical Systems Research Problem) [abstract] [slides] [bibtex] [pdf] [cites]
[D1], , "Power Usage of Time and Event-Triggered Paradigms: A Case Study", Presented at RTAS 2009 Poster Session, 2009, April. [abstract] [slides] [software / source code] [bibtex] [pdf] [cites]

The entire BiBteX file is available here.

Copyright Notice: This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.