1 code implementation • 9 Mar 2024 • Per Mattsson, Fabio Bonassi, Valentina Breschi, Thomas B. Schön
Recently, several direct Data-Driven Predictive Control (DDPC) methods have been proposed, advocating the possibility of designing predictive controllers from historical input-output trajectories without the need to identify a model.
1 code implementation • 6 Feb 2024 • Ruoqi Zhang, Ziwei Luo, Jens Sjölund, Thomas B. Schön, Per Mattsson
We show that such an SDE has a solution that we can use to calculate the log probability of the policy, yielding an entropy regularizer that improves the exploration of offline datasets.
no code implementations • 11 Dec 2023 • Fabio Bonassi, Carl Andersson, Per Mattsson, Thomas B. Schön
The goal of this paper is to provide a system identification-friendly introduction to the Structured State-space Models (SSMs).
no code implementations • 20 Apr 2023 • Ruoqi Zhang, Per Mattsson, Torbjörn Wigren
While reinforcement learning has made great improvements, state-of-the-art algorithms can still struggle with seemingly simple set-point feedback control problems.
no code implementations • 20 Apr 2023 • Ruoqi Zhang, Per Mattsson, Torbjörn Wigren
This paper argues that three ideas can improve reinforcement learning methods even for highly nonlinear set-point control problems: 1) Make use of a prior feedback controller to aid amplitude exploration.
no code implementations • 21 Jan 2022 • Per Mattsson, Dave Zachariah, Petre Stoica
We start by showing that three known optimal linear estimators belong to a wider class of estimators that can be formulated as a solution to a weighted and constrained minimization problem.
1 code implementation • 14 Jun 2016 • Per Mattsson, Dave Zachariah, Petre Stoica
In this paper we develop a method for learning nonlinear systems with multiple outputs and inputs.