Portrait of Ghislain Atemezing

PhD · Semantic Web & Knowledge Graphs

Ghislain Auguste Atemezing

Project Officer, ICT & Operational Data Systems Unit — European Union Agency for Railways (ERA)

“Love all, trust a few, do wrong to none” — W. Shakespeare

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01

Short Bio

I obtained an MSc in Artificial Intelligence (AI) within the Department of Artificial Intelligence, School of Computer Science, Universidad Politécnica de Madrid, at the Ontology Engineering Group (Spain). The title of my Master Thesis was “Analyzing and Ranking Multimedia Ontologies for their Reuse”. Previously, I worked in the research group of software agents (Grasia!) at the School of Computer Science, Universidad Complutense de Madrid (Spain). I also hold a Master in Technologies and Information Systems from the University of Picardie-Jules Verne (France, 2008).

I obtained a PhD in Computer Science in April 2015 from Télécom Paris (formerly Télécom ParisTech), under the supervision of Dr. Raphaël Troncy at Eurecom. The title of my thesis was “Publishing and Consuming Geo-spatial and Government Data on the Semantic Web” (slides, manuscript).

From 2015 to August 2023 I was a researcher at Mondeca, working across modelling activities and R&D-funded projects requiring strong Semantic Web expertise — including leading Mondeca's labs incubator and maintaining its R&D blog. From October 2017 until August 2023, I was Research & Development Director @ Mondeca. Since September 2023, I have been Project Officer (ICT & Operational Data Systems Unit) at the European Union Agency for Railways (ERA). I am also the Founder and President of the AI4Africa Association. My most recent CV is from 2026 — download it here.

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02

Research Interest

I am interested in Semantic Web technologies, Linked Data, ontology engineering (modeling, methodologies), Government Open Data, vocabulary management, web architecture, multimedia applications of the Semantic Web, the Internet of Things, geodata, visualization, NLP and semantics, RDF triple store benchmarking, data science, and applied AI.

Research Expertise

  • Scientific Expert Reviewer for the French ANR projects in “Sciences et Technologies de l'Information et de la Communication department, Contenus et Interactions”: research program AAP 2018, CONTINT 2016 and 2015.

W3C Activities

Member of the following W3C Working Groups:

W3C editorial documents:

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03

Projects

Research Projects

Customer Projects

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04

Demos & Tools

Live tools built around Linked Data and railway knowledge graphs — try them directly in your browser.

RDFRailways

ERA RDF Exporter

Export railway reference data from the ERA Knowledge Graph to RDF, ready to reuse in your own Linked Data pipelines.

Launch demo →
Knowledge GraphExplorer

ERA RDF Explorer

Browse and query the ERA Knowledge Graph interactively — explore entities, relationships and vocabularies used across European railway data.

Launch demo →
VocabulariesSince 2012

Linked Open Vocabularies

The reference gateway to reusable, high-quality RDF vocabularies on the Web — a project I've maintained since September 2012.

Open LOV →

Looking for something from further back? My archive of early Semantic Web prototypes — License Checker and VoID Checker, built circa 2014 — is still up on GitHub.

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05

Publications

  • Benjamin Icard, Ghislain Atemezing, Paul Egré. VAGO: un outil en ligne de mesure du vague et de la subjectivité. Conférence Nationale sur les Applications Pratiques de l'Intelligence Artificielle (PFIA 2022), Jun 2022, Saint-Étienne, France. pp.68-71. ⟨hal-03705048⟩
  • Paul Guélorget, Benjamin Icard, Guillaume Gadek, Souhir Ghabiche, Sylvain Gatepaille, Ghislain Atemezing, Paul Egré. Combining Vagueness Detection with Deep Learning to Identify Fake News. In 24th International Conference on Information Fusion (November 2021, Johannesburg). paper
  • Knowledge Graph Publication and Browsing Using Neo4j (G. Atemezing, A. Huynh). paper · slides · video (SCG Workshop, 2021)
  • Semantics of Data Mining Services in Cloud Computing. IEEE Transactions on Services Computing (Jan 2020). 10.1109/TSC.2020.2966607
  • Towards Automatic Domain Classification of LOV Vocabularies. PROFILES 2019 @ ISWC 2019
  • Benchmarking Commercial RDF Stores with Publications Office Dataset (QuWeDa 2018, acceptance rate = 40%; paper, slides) Best ESWC 2018 Workshop Paper
  • Linda van den Brink, Payam Barnaghi, Jeremy Tandy, Ghislain A. Atemezing, Rob Atkinson, Byron Cochrane, Yasmin Fathy, Raúl García-Castro, Armin Haller, Andreas Harth, Krzysztof Janowicz, Şefki Kolozali, Bart van Leeuwen, Maxime Lefrançois, Josh Lieberman, Andrea Perego, Danh Le Phuoc, Bill Roberts, Kerry Taylor, and Raphaël Troncy. Best Practices for Publishing, Retrieving, and Using Spatial Data on the Web. In Semantic Web Journal (SWJ), 2018
  • Adopting Semantic Technologies for Effective Corporate Transparency (ESWC 2017)
  • Applying Semantic Web Technologies to Assess Maintenance Tasks from Operational Interruptions: A Use-Case at Airbus (ESWC 2017)
  • Semantic Web Methodologies, Best Practices and Ontology Engineering Applied to Internet of Things (IEEE WF-IoT 2015)
  • Linked Open Vocabularies (LOV): a gateway to reusable semantic vocabularies on the Web (2015), Semantic Web Journal. read Semantic Web Outstanding Paper Award 2017 link
  • The ProtégéLOV Plugin: Ontology Access and Reuse for Everyone (ESWC 2015, Demo Paper)
  • All my publications during my PhD
  • Towards a linked-data based visualization wizard, in ISWC 2014, 5th International Workshop on Consuming Linked Data (COLD 2014), 20 October 2014, Riva del Garda, Italy. slides
  • Publishing reference geodata on the web: Opportunities and challenges for IGN France, in 6th International Workshop on the Foundations, Technologies and Applications of the Geospatial Web (TERRACOGNITA 2014), ISWC 2014, 19 October 2014, Riva del Garda, Italy. slides
  • Information content based ranking metric for linked open vocabularies. In SEM 2014, 10th International Conference on Semantic Systems, 4-5 September 2014, Leipzig, Germany. slides
  • Harmonizing services for LOD vocabularies: a case study, in WaSABi 2013, Workshop on Semantic Web Enterprise Adoption and Best Practice, co-located with ISWC 2013, 22 October 2013, Sydney, Australia
  • Towards interoperable visualization applications over linked data. slides; EDF 2013, 2nd European Data Forum, 9-10 April 2013, Dublin, Ireland
  • Transforming Meteorological Data into Linked Data, in SWJ (2012)
  • A Landscape for Multimedia Ontologies, in the Special Issue on Multimedia Data Semantics. doi
  • Confomaton Application, in Linked Data-a-thon challenge, in conjunction with ISWC'11, 23-27 October 2011, Bonn, Germany. Best Concept Award

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06

Activities

Invited Talks & Keynotes (9)
  • ERAKG: A core semantic knowledge graph for railways — ENDORSE 2025, 8-9 October 2025, Brussels. slides · video
  • Talk: “The EU Rail Knowledge Graph” — Sesame Talks MISTEA (17 February 2025, Montpellier, France)
  • Talk: “A Little Semantics Goes a Long Rail” — SemWeb.pro live (14 March 2024)
  • Talk at “Application of Reasoning on Complex and Evolving Data: Methods and Use-Cases” Workshop (RoCED) at KGC 2022
  • Keynote at ESSnet final event. Title: “The Future of LOD” (27-28 May 2019, Sofia, Bulgaria)
  • Lightning presentation at W3C Graph Data Workshop (4-6 March 2019, Berlin, Germany)
  • Invited speaker at Taxonomy Boot Camp (TBC) (5-6 Nov 2018, Washington D.C., USA — slides)
  • Invited speaker at SIIM 2017 (24-25 November 2017, Toulouse, France)
  • Invited speaker at Works-Web'16, 23 June 2016, Montreuil, France
Event Organization (20)
Teaching & Representation (5)
  • Teaching Semantic Web and Knowledge Representation at ISEP, Paris (2022 – 2023)
  • Teaching Semantic Web technologies and Knowledge Representation for MIAGE IKSEM at Sorbonne University (since 2022)
  • Teaching Introduction to Semantic Web at Master II level (UFR Maths-Info), Université Paris Descartes — now Université Paris Cité (2017 – 2023)
  • Teaching Introduction to Semantic Web at Master II level, CNAM, Paris (2018 – 2019)
  • Member of the “Conseil de Perfectionnement Licence Informatique” of Université de Paris (2021 – 2023)
Program Committee Memberships (16 conferences & workshops)
Journal Review (11)
Master Students & Internships Supervised (11)
  • Jérémy Roca: “Data semantics and architecture constraints for use in the Web of Things.” Promo 2022 – Security in Computer Systems and Communications, Eurecom
  • Thérèse Ytembé Dankam: “Deep mining of textual speeches: application to political leaders in Cameroon,” 2021 (co-supervisor Dr. Elie Fute), University of Buea, Cameroon
  • Emmanuel Ludivin Tchuindjang Tchokote: “NLP techniques for summarizing open national calls for tenders: application for the Public Contract Regulatory Agency,” 2021 (co-supervisor Dr. Elie Fute), University of Buea, Cameroon
  • Gianmarco Centonze: “Technologies sémantiques sur les dispositifs embarqués: état de l'art et applications,” 2020 (co-supervisor Maria A. Zuluaga), Mondeca / Eurecom
  • Lauren Picard: “Extraction de connaissances sur des faits désinformants,” Mondeca / INSA Lyon (2020)
  • Alexis Pister: “Hybridation des composants NLP pour l'annotation sémantique des documents textuels,” 2019, Mondeca / INSA Lyon (co-supervisor Sergio Peignier)
  • Amah Ann Nyoh Nditah: “Sentiment analysis on social media with real-world application,” 2018 (co-supervisor Dr. Elie Fute), University of Buea, Cameroon
  • Alexis Troberg: “Improving the discovery of Application Contests in Open Data Events,” Semester Project, Spring 2014 (Eurecom)
  • Lam Cao Vien: “Learning and building a coordinate converter web service and interlinking geographic content RDF databases with LIMES,” Semester Project, Fall 2013 (Eurecom)
  • Le Thi Nhu Nguyen: “Track Picker,” Semester Project, Spring 2013 (Eurecom)
  • Anne-Élisabeth Gazet: “Building data.eurecom.fr,” Semester Project, Fall 2011 (Eurecom)
PhD Thesis Committees (3)
  • Member, Thesis follow-up Committee of Solenn Tual, IGN, Labo LASTIG (2023 – 2025)
  • Examiner, PhD Thesis of Noura Herradi, Labo Cédric – CNAM, 10 December 2018, Paris
  • Examiner, PhD Thesis of Matthieu Viriy, LIG – STeamer, 16 December 2021, IMAG, Grenoble

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07

Contact

You can reach me using the following address:

work email ghislain dot atemezing AT era dot europa dot eu
alt email  me AT atemezing dot org
address    120 rue Marc Lefrancq, 59300 Valenciennes, France

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08

Off Duty

I studied philosophy and theology for two years at the Faculty of Theology San Dámaso (Madrid, Spain), and I hope one day to be graduated in the art of “giving reason to my faith.”

A few links to people, institutions and pages that shaped how I see the world — and some of my favourite reads.

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