PhD (M/F) Differentiable hyperbolicity and Graph Neural Networks
New
- FTC PhD student / Offer for thesis
- 36 months
- BAC+5
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Institut de recherche en informatique et systèmes aléatoires
Contract Type
FTC PhD student / Offer for thesis
Working hHours
Full Time
Workplace
35042 RENNES
Contract Duration
36 months
Date of Hire
01/10/2026
Remuneration
2300 € gross monthly
Apply Application Deadline : 27 July 2026 23:59
Job Description
Thesis Subject
Several concepts of Riemannian geometry have recently found applications in graph Machine Learning, such as the Ollivier-Ricci curvature. A recent example is the delta-hyperbolicity, which measures how graphs locally look like a tree, which has found applications in treating over-squashing in Graph Neural Networks. However, a fundamental limit of this notion is its combinatorial nature, which limits its integration in ML pipelines. Recently, a differentiable surrogate of delta-hyperbolicity has been proposed, and studied theoretically.
The goal of this project is to integrate and benchmark this new notion in Graph ML and Graph Neural Networks.
Your Work Environment
The candidate will be attached to IRISA's Compact team.
About the lab
=============
www.irisa.fr
IRISA is one of France's largest research laboratories (over 850 people) in the field of computer science and information technology. Structured into seven scientific departments, IRISA is a laboratory of excellence whose scientific priorities are bioinformatics, systems security, new software architectures, virtual reality, Big Data analysis and artificial intelligence. IRISA is at the heart of the digital transition of society and innovation in the fields of cybersecurity, health, environment and ecology, transport, robotics, energy, culture and artificial intelligence.
The position is located in a sector covered by the protection of scientific and technical potential (PPST), and therefore requires, in accordance with regulations, that your arrival be authorized by the competent MESR authority.
Compensation and benefits
Compensation
2300 € gross monthly
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR6074-NICKER-009 |
|---|---|
| CN Section(s) / Research Area | Information sciences: processing, integrated hardware-software systems, robots, commands, images, content, interactions, signals and languages |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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