Search Results for author: Sofie Haesaert

Found 21 papers, 2 papers with code

Risk-Aware Real-Time Task Allocation for Stochastic Multi-Agent Systems under STL Specifications

no code implementations2 Apr 2024 Maico H. W. Engelaar, Zengjie Zhang, Eleftherios E. Vlahakis, Mircea Lazar, Sofie Haesaert

This paper addresses the control synthesis of heterogeneous stochastic linear multi-agent systems with real-time allocation of signal temporal logic (STL) specifications.

Autonomous Driving Model Predictive Control

Risk-Aware MPC for Stochastic Systems with Runtime Temporal Logics

no code implementations5 Feb 2024 Maico H. W. Engelaar, Zengjie Zhang, Mircea Lazar, Sofie Haesaert

This paper concerns the risk-aware control of stochastic systems with temporal logic specifications dynamically assigned during runtime.

Model Predictive Control Motion Planning

A Linear Parameter-Varying Approach to Data Predictive Control

no code implementations13 Nov 2023 Chris Verhoek, Julian Berberich, Sofie Haesaert, Roland Tóth, Hossam S. Abbas

By means of the linear parameter-varying (LPV) Fundamental Lemma, we derive novel data-driven predictive control (DPC) methods for LPV systems.

LEMMA

Verifying the Unknown: Correct-by-Design Control Synthesis for Networks of Stochastic Uncertain Systems

no code implementations3 Sep 2023 Oliver Schön, Birgit van Huijgevoort, Sofie Haesaert, Sadegh Soudjani

We address two limitations of existing approaches for formal synthesis of controllers for networks of uncertain systems satisfying complex temporal specifications.

Risk-Aware Reward Shaping of Reinforcement Learning Agents for Autonomous Driving

1 code implementation5 Jun 2023 Lin-Chi Wu, Zengjie Zhang, Sofie Haesaert, Zhiqiang Ma, Zhiyong Sun

Reinforcement learning (RL) is an effective approach to motion planning in autonomous driving, where an optimal driving policy can be automatically learned using the interaction data with the environment.

Autonomous Driving Motion Planning +3

Bayesian Formal Synthesis of Unknown Systems via Robust Simulation Relations

no code implementations14 Apr 2023 Oliver Schön, Birgit van Huijgevoort, Sofie Haesaert, Sadegh Soudjani

With a focus on continuous-space stochastic systems with parametric uncertainty, we propose a two-stage approach that decomposes the problem into a learning stage and a robust formal controller synthesis stage.

Abstracting Linear Stochastic Systems via Knowledge Filtering

no code implementations12 Apr 2023 Maico Hendrikus Wilhelmus Engelaar, Licio Romao, Yulong Gao, Mircea Lazar, Alessandro Abate, Sofie Haesaert

In this paper, we propose a new model reduction technique for linear stochastic systems that builds upon knowledge filtering and utilizes optimal Kalman filtering techniques.

Direct data-driven control with signal temporal logic specifications

no code implementations5 Apr 2023 Birgit C. van Huijgevoort, Chris Verhoek, Roland Tóth, Sofie Haesaert

Most control synthesis methods under temporal logic properties require a model of the system, however, identifying such a model can be a challenging task.

Automated Formation Control Synthesis from Temporal Logic Specifications

no code implementations1 Apr 2023 Shuhao Qi, Zengjie Zhang, Sofie Haesaert, Zhiyong Sun

In many practical scenarios, multi-robot systems are envisioned to support humans in executing complicated tasks within structured environments, such as search-and-rescue tasks.

Navigate

Modularized Control Synthesis for Complex Signal Temporal Logic Specifications

1 code implementation30 Mar 2023 Zengjie Zhang, Sofie Haesaert

In this paper, we propose a framework to transform a long and complex specification into separate forms in time, to be more specific, the logical combination of a series of short and simple subformulas with non-overlapping timing intervals.

Direct data-driven state-feedback control of general nonlinear systems

no code implementations19 Mar 2023 Chris Verhoek, Patrick J. W. Koelewijn, Sofie Haesaert, Roland Tóth

Through the use of the Fundamental Lemma for linear systems, a direct data-driven state-feedback control synthesis method is presented for a rather general class of nonlinear (NL) systems.

LEMMA Scheduling

Data-driven Dissipativity Analysis of Linear Parameter-Varying Systems

no code implementations17 Mar 2023 Chris Verhoek, Julian Berberich, Sofie Haesaert, Frank Allgöwer, Roland Tóth

We derive direct data-driven dissipativity analysis methods for Linear Parameter-Varying (LPV) systems using a single sequence of input-scheduling-output data.

Scheduling

SySCoRe: Synthesis via Stochastic Coupling Relations

no code implementations23 Feb 2023 Birgit van Huijgevoort, Oliver Schön, Sadegh Soudjani, Sofie Haesaert

We present SySCoRe, a MATLAB toolbox that synthesizes controllers for stochastic continuous-state systems to satisfy temporal logic specifications.

Correct-by-Design Control of Parametric Stochastic Systems

no code implementations15 Oct 2022 Oliver Schön, Birgit van Huijgevoort, Sofie Haesaert, Sadegh Soudjani

We develop new methods for models of systems subject to both stochastic and parametric uncertainties.

Deep-Learning-Based Identification of LPV Models for Nonlinear Systems

no code implementations8 Apr 2022 Chris Verhoek, Gerben I. Beintema, Sofie Haesaert, Maarten Schoukens, Roland Tó th

The Linear Parameter-Varying (LPV) framework provides a modeling and control design toolchain to address nonlinear (NL) system behavior via linear surrogate models.

Scheduling

Fundamental Lemma for Data-Driven Analysis of Linear Parameter-Varying Systems

no code implementations30 Mar 2021 Chris Verhoek, Roland Tóth, Sofie Haesaert, Anne Koch

Based on the behavioural framework for LPV systems, we prove that one can obtain a result similar to Willems'.

LEMMA

Data-Driven Predictive Control for Linear Parameter-Varying Systems

no code implementations30 Mar 2021 Chris Verhoek, Hossam S. Abbas, Roland Tóth, Sofie Haesaert

Based on the extension of the behavioral theory and the Fundamental Lemma for Linear Parameter-Varying (LPV) systems, this paper introduces a Data-driven Predictive Control (DPC) scheme capable to ensure reference tracking and satisfaction of Input-Output (IO) constraints for an unknown system under the conditions that (i) the system can be represented in an LPV form and (ii) an informative data-set containing measured IO and scheduling trajectories of the system is available.

LEMMA Scheduling

Convex Incremental Dissipativity Analysis of Nonlinear Systems - Extended version

no code implementations25 Jun 2020 Chris Verhoek, Patrick J. W. Koelewijn, Sofie Haesaert, Roland Tóth

We investigate how stability and performance characterizations of nonlinear systems in the incremental framework are linked to dissipativity, and how general performance characterization beyond the $\mathcal{L}_2$-gain concept can be understood in this framework.

Automated Experiment Design for Data-Efficient Verification of Parametric Markov Decision Processes

no code implementations5 Jul 2017 Elizabeth Polgreen, Viraj Wijesuriya, Sofie Haesaert, Alessandro Abate

We present a new method for statistical verification of quantitative properties over a partially unknown system with actions, utilising a parameterised model (in this work, a parametric Markov decision process) and data collected from experiments performed on the underlying system.

Sampling-based Approximations with Quantitative Performance for the Probabilistic Reach-Avoid Problem over General Markov Processes

no code implementations1 Sep 2014 Sofie Haesaert, Robert Babuska, Alessandro Abate

This article deals with stochastic processes endowed with the Markov (memoryless) property and evolving over general (uncountable) state spaces.

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