Task planning under constraints

Thesis topic details

General information

Organisation

The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.

Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.

The CEA is established in ten centers spread throughout France
  

Reference

SL-DRT-26-0525  

Direction

DRT

Thesis topic details

Category

Technological challenges

Thesis topics

Task planning under constraints

Contract

Thèse

Job description

The autonomy of embedded systems, in particular robots, comes from their capability to plan their next actions. Although, it becomes critical to ensure the safety of the behaviour as the systems are exposed to human interaction more and more (eg. Autonomous cars, toy UAVs, cobots in manufacturing and so on).
The goal of the thesis is to study task planning under constraints: select the best sequence of actions while optimising several criteria like efficiency, safety and other domain specifics. The thesis involves two main axes, the first is to study how to model the systems constraints in a manner that can be understood both by the human experts and the planning algorithm (eg. Using Operational Design Domain or Dynamic Assurance Case to evaluate system’s safety). Ontologies and knowledge graphs would probably be adequate to model the constraints. The model would benefit from their expressivity and the already-existing tooling. The second main axis is the improvement of the planning algorithm to leverage those models. Those models shall have a generic structure since it is necessary to represent many natures of constraints: safety, efficiency/cost, social “confort”, shared resources on the critical path, type and quantity of interactions between the agents, geometric feasibility, ...
As the thesis is aimed at robotic autonomous systems, it will be important to demonstrate and evaluate the system on real-world use cases.

University / doctoral school

Ecole Doctorale de l’Institut Polytechnique de Paris (IP Paris)
ENSTA ParisTech

Thesis topic location

Site

Saclay

Requester

Position start date

01/01/2026

Person to be contacted by the applicant

LALLEMENT Raphaël raphael.lallement@cea.fr
CEA
DRT/DILS//LSEA
CEA Saclay
DRT/LIST/DILS/LSEA
91191 Gif-sur-Yvette
France
01 69 08 80 55

Tutor / Responsible thesis director

TAPUS Adriana adriana.tapus@ensta.fr
ENSTA
Autonomous Systems and Robotics Lab
Autonomous Systems and Robotics Lab /U2IS
ENSTA Paris
Institut Polytechnique de Paris (IP Paris)
828 Blvd des Marechaux
91120, Palaiseau
France

En savoir plus