Sebastian Hellmann
Executive Director at DBpedia Association
Greater Leipzig Area Germany
Summary
👤
Senior🎓
Top SchoolSebastian Hellmann is an experienced research and technology leader with 19 years building knowledge-graph infrastructure and open data communities from Leipzig, Germany. As Executive Director of the DBpedia Association and senior researcher at AKSW/KILT, he combines hands-on backend engineering—contributing to core projects like the widely used DBpedia extraction framework—with academic research and group-building. His work focuses on extracting, structuring, and making Wikipedia-derived data interoperable at scale, bridging university research and production-grade open-source systems. A Diplom-Informatik from Universität Leipzig, he is notable for bootstrapping community governance around DBpedia while continuing to optimize core data extraction and storage components.
18 years of coding experience
Diplom, Informatik, Diplom, Informatik at Universität LeipzigUniversidade Nova de Lisboa
Portuguese, English, German, French, Spanish
Github Skills (6)
javas10
sql10
java10
data-storage9
json9
database-management9
Programming languages (12)
Github contributions (5)
dbpedia/extraction-framework
Jan 2011 - Sep 2021
The software used to extract structured data from Wikipedia
Role in this project:
Back-end Developer
Back-end DeveloperContributions:176 commits, 11 PRs, 190 pushes in 10 years 9 months
Contributions summary:Sebastian primarily contributed to the `Hash` class within the `org.dbpedia.extraction.live.core` package, which seems to be related to data extraction and storage. They modified the `Hash` class, including methods for database interaction (inserting, updating, and deleting data), JSON serialization, and data retrieval. The changes indicate a focus on optimizing the storage and retrieval of structured data extracted from Wikipedia.
pythonstructured-datastructuredwikipedia
dbpedia/databus-maven-plugin
May 2018 - Mar 2020
Databus Maven Plugin: Aligning Data and Software Lifecycle with Maven
Contributions:342 commits, 1 PR, 343 pushes in 1 year 10 months
maven-pluginmavenlifecycledatabusjava
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