Célian Ringwald

Between words, structures & graphs

Semantic Web NLP Knowledge Graphs

About me

Research engineer / PhD at the Wimmics team of Inria Sophia-Antipolis, working at the intersection of knowledge graphs, semantic web technologies and language models. PhD defended December 2025. Since April 2026, postdoc at the Infinity Project, University of Bologna.

News

Dec 2025 — Sophia-Antipolis, France Successfully defended my PhD: Learning Pattern-Based Extractors from Natural Language and Knowledge Graphs.
May 2025 — Portorož, Slovenia Presented Kastor at ESWC 2025 — Research Track.

Selected publications

Overcoming the Generalization Limits of SLM Finetuning for Shape-Based Extraction
Célian Ringwald, Fabien Gandon, Catherine Faron, Franck Michel, Hanna Abi Akl — KCAP 2025
Kastor: Fine-tuned Small Language Models for Shape-based Active Relation Extraction
Célian Ringwald, Fabien Gandon, Catherine Faron, Franck Michel, Hanna Abi Akl — ESWC 2025

🧪 Codeberg Pages test

This is a minimal, dependency-free page (no external assets/ folder needed) meant to verify that Codeberg Pages correctly serves this repository. If you can read this styled page, the deployment works.