A Data-Driven Hybrid Automaton Framework to Modeling Complex Dynamical Systems
This work addresses computational efficiency challenges in modeling complex dynamical systems, though it appears incremental as it builds on existing hybrid automaton and neural network approaches.
The authors tackled the problem of modeling complex dynamical systems by proposing a data-driven hybrid automaton framework that uses multiple neural networks to capture system behaviors, which significantly reduced computational cost in reachable set computation without sacrificing modeling precision.
In this paper, a computationally efficient data-driven hybrid automaton model is proposed to capture unknown complex dynamical system behaviors using multiple neural networks. The sampled data of the system is divided by valid partitions into groups corresponding to their topologies and based on which, transition guards are defined. Then, a collection of small-scale neural networks that are computationally efficient are trained as the local dynamical description for their corresponding topologies. After modeling the system with a neural-network-based hybrid automaton, the set-valued reachability analysis with low computation cost is provided based on interval analysis and a split and combined process. At last, a numerical example of the limit cycle is presented to illustrate that the developed models can significantly reduce the computational cost in reachable set computation without sacrificing any modeling precision.