no code implementations • 9 Jun 2023 • Ran Tao, Hunmin Kim, Hyung-Jin Yoon, Wenbin Wan, Naira Hovakimyan, Lui Sha, Petros Voulgaris
To include this new safety concept in control problems, we formulate a feasibility maximization problem aiming to maximize the feasibility of the primary and alternative missions.
no code implementations • 4 Feb 2023 • Jinghan Yang, Hunmin Kim, Wenbin Wan, Naira Hovakimyan, Yevgeniy Vorobeychik
Autonomous systems increasingly rely on machine learning techniques to transform high-dimensional raw inputs into predictions that are then used for decision-making and control.
no code implementations • 4 Sep 2022 • Ayoosh Bansal, Simon Yu, Hunmin Kim, Bo Li, Naira Hovakimyan, Marco Caccamo, Lui Sha
The synergistic safety layer uses only verifiable and logically analyzable software to fulfill its tasks.
1 code implementation • 30 Aug 2022 • Ayoosh Bansal, Hunmin Kim, Simon Yu, Bo Li, Naira Hovakimyan, Marco Caccamo, Lui Sha
Perception of obstacles remains a critical safety concern for autonomous vehicles.
no code implementations • 23 Jun 2022 • Chuyuan Tao, Hyung-Jin Yoon, Hunmin Kim, Naira Hovakimyan, Petros Voulgaris
In this paper, we utilize Stochastic Control Barrier Functions (SCBFs) constraints to limit sample regions in the sample-based algorithm, ensuring safety in a probabilistic sense and improving sample efficiency with a stochastic differential equation.
no code implementations • 29 Mar 2022 • Minjun Sung, Christophe Johannes Hiltebrandt-McIntosh, Hunmin Kim, Naira Hovakimyan
We introduce a new concept of defense margin to complement an existing strategy and construct a control strategy that successfully solves our problem.
no code implementations • 12 Nov 2021 • Chuyuan Tao, Hunmin Kim, HyungJin Yoon, Naira Hovakimyan, Petros Voulgaris
For a nonlinear stochastic path planning problem, sampling-based algorithms generate thousands of random sample trajectories to find the optimal path while guaranteeing safety by Lagrangian penalty methods.
no code implementations • 25 Sep 2021 • Wenbin Wan, Hunmin Kim, Naira Hovakimyan, Petros Voulgaris
In this paper, a constrained attack-resilient estimation algorithm (CARE) is developed for stochastic cyber-physical systems.
no code implementations • 27 Mar 2021 • Hunmin Kim, HyungJin Yoon, Wenbin Wan, Naira Hovakimyan, Lui Sha, Petros Voulgaris
To incorporate this new safety concept in control problems, we formulate a feasibility maximization problem that adopts additional (virtual) input horizons toward the alternative missions on top of the input horizon toward the primary mission.