Servus! Up to 100 DBpedians joined us on this year’s DBpedia Day on September 3rd, 2025 in Vienna, Austria. The DBpedia Day was again part of the SEMANTiCS Conference.
First and foremost, we want to thank the Institute for Applied Informatics for supporting our community and many thanks to the SEMANTiCS organization team for hosting this year’s DBpedia Day.
Opening of the DBpedia Day
Our CEO Sebastian Hellmann opened this year’s DBpedia Day with an input titled “DBpedia Live Fusion – The Knowledge Graph Operating System”, in which he talked about the unique features of the system.
Afterwards, Prof. Dr. Hannah Bast, professor at the University of Freiburg, presented her keynote on “The QLever SPARQL Engine”. In her presentation, Bast demonstrated the performance differences of SPARQL Engines. In particular, she highlighted QLever, a relatively new engine that beats established engines, especially on large knowledge graphs. You can read more about the keynote in the provided abstract.
DBpedia Member Session
Milan Dojchinovski, InfAI/DBpedia Association and CTU Prague, started the first session of the day with a short welcome. The first speaker was Sahar Vahdati (Leibniz University Hannover) with a presentation on the “TIB AI assistant”.
Shortly after, Susana López-Sola from GNOSS delivered an input on the “Use case of semantic reasoning in insurance: Assistant for responding to claims by hybridizing knowledge graph technology and LLMs based on GNOSS Semantic AI Platform and its cognitive AI services”.
Next, Hans-Christian Brockmann (eccenca) talked about “Building semantically aligned, explainable, and rule-driven data systems today that lay the groundwork for tomorrow’s trustworthy AI” (slides).
And finally, the last presentation “DBpedia Live Fusion KG – Technology, Statistics and Use Cases of the new Knowledge Graph” was given by Sebastian Hellmann and expanded on his input from earlier in the day.
LLM+DBpedia Session
After a well deserved lunch break, we started off with the second session of the day. In our LLM+DBpedia Session we welcomed the following speakers:
- Tilahun Abedissa Taffa (Leuphana University Lüneburg) “Amharic DBpedia Chapter” (slides)
- Lukáš Sýkora (Prague University of Economics and Business) “LLMs as Transparent Verifiers: A Non-Internal Approach to Knowledge Graph Quality Control” (slides)
- as well as Malte Christian Bartels (Leuphana University Lüneburg) “Automating SPARQL Query Translations between DBpedia and Wikidata” (slides)
- and Nikola Tulechki (Graphwise) “Ontology aware LLM for SPARQL based natural language interaction with arbitrary knowledge graphs” (slides).
DBpedia Dev Session
To wrap up a day of exciting inputs, Sebastian Hellmann led participants through the DBpedia Dev session. Here, the current state of DBpedia was discussed and shown in detail. The session was interactive and participants were encouraged to ask questions and provide feedback to shape the technical roadmap of DBpedia.
Topics included improving the Wikipedia/Wikidata extraction and increasing data quality of the DBpedia Open Core Knowledge Graphs, building an interoperable library of RDF tools around the new Knowledge Graph Catalogue, as well as connecting with other Open Knowledge Graph projects.
We thank everyone who attended and participated in this year’s DBpedia Day! We are now looking forward to more DBpedia events in the upcoming months and next year’s SEMANTiCS Conference, which will be held in Ghent, Belgium.
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Johanna & Julia
On behalf of the DBpedia Association
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