no code implementations • 19 Mar 2024 • Xun Shen, Ye Wang, Kazumune Hashimoto, Yuhu Wu, Sebastien Gros
The existing methods of computing probabilistic reachable sets normally assume that the uncertainties are independent of the state.
no code implementations • 8 Jan 2024 • Akifumi Wachi, Wataru Hashimoto, Kazumune Hashimoto
Our theoretical results show that LoBiSaRL guarantees the long-term safety constraint, with high probability.
no code implementations • 14 Oct 2023 • Lichen Ding, Kazumune Hashimoto, Shigemasa Takai
To synthesize the event-triggered controller, we leverage the notion of a symbolic model, which represents an abstracted expression of the transition system associated with the SIRS model under the event-triggered control strategy.
no code implementations • 10 Aug 2023 • Wataru Hashimoto, Kazumune Hashimoto, Akifumi Wachi, Xun Shen, Masako Kishida, Shigemasa Takai
The proposed scheme realizes efficient online synthesis of the controller as shown in the simulation study and provides probabilistic safety guarantees on the resulting controller.
1 code implementation • 16 May 2023 • Yoshinari Takayama, Kazumune Hashimoto, Toshiyuki Ohtsuka
Signal Temporal Logic (STL) is capable of expressing a broad range of temporal properties that controlled dynamical systems must satisfy.
1 code implementation • 4 Apr 2023 • Yoshinari Takayama, Kazumune Hashimoto, Toshiyuki Ohtsuka
Our framework includes a new robustness decomposition method that decomposes the robustness function into a set of constraints, resulting in a form of difference of convex (DC) program that can be solved efficiently.
no code implementations • 10 Dec 2022 • Wataru Hashimoto, Kazumune Hashimoto, Masako Kishida, Shigemasa Takai
In this paper, we propose a control synthesis method for signal temporal logic (STL) specifications with neural networks (NNs).
no code implementations • 21 Feb 2022 • Wang Zhijun, Kazumune Hashimoto, Wataru Hashimoto, Shigemasa Takai
This paper investigates the design of self-triggered control for networked control systems (NCS), where the dynamics of the plant is unknown apriori.
no code implementations • 10 Sep 2021 • Wataru Hashimoto, Kazumune Hashimoto, Shigemasa Takai
In this paper, a method for learning a recurrent neural network (RNN) controller that maximizes the robustness of signal temporal logic (STL) specifications is presented.
no code implementations • 20 Jul 2021 • Kazumune Hashimoto, Natsuko Tsumagari, Toshimitsu Ushio
An exploration policy for the copter is then synthesized by employing the notion of an entropy that is evaluated based on the environmental beliefs of the atomic propositions, and a path that the rover intends to follow according to the optimal policy.
no code implementations • 4 Apr 2020 • Kazumune Hashimoto, Adnane Saoud, Masako Kishida, Toshimitsu Ushio, Dimos Dimarogonas
Symbolic models or abstractions are known to be powerful tools for the control design of cyber-physical systems (CPSs) with logic specifications.