Sebastian Hellmann

According to our database, Sebastian Hellmann authored at least 84 papers between 2009 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2023

Studying Linked Data Accessibility Healthiness for the Long Tail of the Data Web.

Johannes Frey, Marvin Hofer, Sebastian Hellmann

Proceedings of the Joint Proceedings of the QuWeDa and MEPDaW 2023: 7th Workshop on Storing, 2023

2022

Reproducibility Crisis in the LOD Cloud? Studying the Impact of Ontology Accessibility and Archiving as a Counter Measure.

Johannes Frey, Denis Streitmatter, Natanael Arndt, Sebastian Hellmann

Proceedings of the Semantic Web - ISWC 2022, 2022

2021

MMoOn Core - the Multilingual Morpheme Ontology.

Bettina Klimek, Markus Ackermann, Martin Brümmer, Sebastian Hellmann

Semantic Web, 2021

FAIR Linked Data - Towards a Linked Data Backbone for Users and Machines.

Johannes Frey, Sebastian Hellmann

Proceedings of the Companion of The Web Conference 2021, 2021

DACOC3 - DBpedia Archivo Challenging Ontology Consistency Check Collection.

Johannes Frey, Denis Streitmatter, Sebastian Hellmann

Proceedings of the Semantic Reasoning Evaluation Challenge (SemREC 2021) co-located with the 20th International Semantic Web Conference (ISWC 2021), 2021

Towards a Systematic Approach to Sync Factual Data across Wikipedia, Wikidata and External Data Sources.

Sebastian Hellmann, Johannes Frey, Marvin Hofer, Milan Dojchinovski, Krzysztof Wecel, Wlodzimierz Lewoniewski

Proceedings of the Conference on Digital Curation Technologies (Qurator 2021), Berlin, Germany, February 8th - to, 2021

Managing and Compiling Data Dependencies for Semantic Applications Using Databus Client.

Johannes Frey, Fabian Götz, Marvin Hofer, Sebastian Hellmann

Proceedings of the Metadata and Semantic Research - 15th International Conference, 2021

2020

Kartographische Potenziale fotorealistischer und non-fotorealistischer Texturen für die Nutzung virtueller 3D-Stadtmodelle.

Sebastian Hellmann

PhD thesis, 2020

The New DBpedia Release Cycle: Increasing Agility and Efficiency in Knowledge Extraction Workflows.

Marvin Hofer, Sebastian Hellmann, Milan Dojchinovski, Johannes Frey

Proceedings of the Semantic Systems. In the Era of Knowledge Graphs, 2020

DBpedia Archivo: A Web-Scale Interface for Ontology Archiving Under Consumer-Oriented Aspects.

Johannes Frey, Denis Streitmatter, Fabian Götz, Sebastian Hellmann, Natanael Arndt

Proceedings of the Semantic Systems. In the Era of Knowledge Graphs, 2020

2019

Evaluation of metadata representations in RDF stores.

Johannes Frey, Kay Müller, Sebastian Hellmann, Erhard Rahm, Maria-Esther Vidal

Semantic Web, 2019

DBpedia FlexiFusion the Best of Wikipedia > Wikidata > Your Data.

Johannes Frey, Marvin Hofer, Daniel Obraczka, Jens Lehmann, Sebastian Hellmann

Proceedings of the Semantic Web - ISWC 2019, 2019

2018

Editorial: Special issue on quality management of Semantic Web assets (data, services and systems).

Amrapali Zaveri, Dimitris Kontokostas, Sebastian Hellmann, Jürgen Umbrich

Semantic Web, 2018

Wikidata through the eyes of DBpedia.

Ali Ismayilov, Dimitris Kontokostas, Sören Auer, Jens Lehmann, Sebastian Hellmann

Semantic Web, 2018

DBpedia NIF: Open, Large-Scale and Multilingual Knowledge Extraction Corpus.

Milan Dojchinovski, Julio Hernandez, Markus Ackermann, Amit Kirschenbaum, Sebastian Hellmann

CoRR, 2018

Inference of Latent Shape Expressions Associated to DBpedia Ontology.

Daniel Fernández-Álvarez, Herminio García-González, Johannes Frey, Sebastian Hellmann, José Emilio Labra Gayo

Proceedings of the ISWC 2018 Posters & Demonstrations, Industry and Blue Sky Ideas Tracks co-located with 17th International Semantic Web Conference (ISWC 2018), Monterey, USA, October 8th - to, 2018

Predicting incorrect mappings: a data-driven approach applied to DBpedia.

Mariano Rico, Nandana Mihindukulasooriya, Dimitris Kontokostas, Heiko Paulheim, Sebastian Hellmann, Asunción Gómez-Pérez

Proceedings of the 33rd Annual ACM Symposium on Applied Computing, 2018

2017

A Vocabulary-Independent Generation Framework for DBpedia and Beyond.

Ben De Meester, Anastasia Dimou, Wouter Maroy, Dimitris Kontokostas, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann

Proceedings of the ISWC 2017 Posters & Demonstrations and Industry Tracks co-located with 16th International Semantic Web Conference (ISWC 2017), Vienna, Austria, October 23rd - to, 2017

Sustainable Linked Data Generation: The Case of DBpedia.

Wouter Maroy, Anastasia Dimou, Dimitris Kontokostas, Ben De Meester, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann

Proceedings of the Semantic Web - ISWC 2017, 2017

OnLiT: An Ontology for Linguistic Terminology.

Bettina Klimek, John P. McCrae, Christian Lehmann, Christian Chiarcos, Sebastian Hellmann

Proceedings of the Language, Data, and Knowledge - First International Conference, 2017

IDOL: Comprehensive & Complete LOD Insights.

Ciro Baron Neto, Dimitris Kontokostas, Amit Kirschenbaum, Gustavo Correa Publio, Diego Esteves, Sebastian Hellmann

Proceedings of the 13th International Conference on Semantic Systems, 2017

MaSQue: An Approach for Flexible Metadata Storage and Querying in RDF.

Johannes Frey, Sebastian Hellmann

Proceedings of the Posters and Demos Track of the 13th International Conference on Semantic Systems, 2017

Investigating Explorability of DBpedia and its Ontology.

Jan Forberg, Gustavo Publio, Sebastian Hellmann

Proceedings of the Posters and Demos Track of the 13th International Conference on Semantic Systems, 2017

Investigating the Morphological Complexity of German Named Entities: The Case of the GermEval NER Challenge.

Bettina Klimek, Markus Ackermann, Amit Kirschenbaum, Sebastian Hellmann

Proceedings of the Language Technologies for the Challenges of the Digital Age, 2017

2016

LODVader: An Interface to LOD Visualization, Analyticsand DiscovERy in Real-time.

Ciro Baron Neto, Kay Müller, Martin Brümmer, Dimitris Kontokostas, Sebastian Hellmann

Proceedings of the 25th International Conference on World Wide Web, 2016

Assessing Quantity and Quality of Links Between Link Data Datasets.

Ciro Baron Neto, Dimitris Kontokostas, Sebastian Hellmann, Kay Müller, Martin Brümmer

Proceedings of the Workshop on Linked Data on the Web, 2016

DBpedia Mappings Quality Assessment.

Anastasia Dimou, Dimitris Kontokostas, Markus Freudenberg, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann

Proceedings of the ISWC 2016 Posters & Demonstrations Track co-located with 15th International Semantic Web Conference (ISWC 2016), 2016

LD-LEx: Linked Dataset Link Extractor (Short Paper).

Ciro Baron Neto, Dimitris Kontokostas, Gustavo Publio, Kay Müller, Sebastian Hellmann, Eduardo Moletta

Proceedings of the On the Move to Meaningful Internet Systems: OTM 2016 Conferences, 2016

The Metadata Ecosystem of DataID.

Markus Freudenberg, Martin Brümmer, Jessika Rücknagel, Robert Ulrich, Thomas Eckart, Dimitris Kontokostas, Sebastian Hellmann

Proceedings of the Metadata and Semantics Research - 10th International Conference, 2016

The Open Linguistics Working Group: Developing the Linguistic Linked Open Data Cloud.

John P. McCrae, Christian Chiarcos, Francis Bond, Philipp Cimiano, Thierry Declerck, Gerard de Melo, Jorge Gracia, Sebastian Hellmann, Bettina Klimek, Steven Moran, Petya Osenova, Antonio Pareja-Lora, Jonathan Pool

Proceedings of the Tenth International Conference on Language Resources and Evaluation LREC 2016, 2016

FREME: Multilingual Semantic Enrichment with Linked Data and Language Technologies.

Milan Dojchinovski, Felix Sasaki, Tatjana Gornostaja, Sebastian Hellmann, Erik Mannens, Frank Salliau, Michele Osella, Phil Ritchie, Giannis Stoitsis, Kevin Koidl, Markus Ackermann, Nilesh Chakraborty

Proceedings of the Tenth International Conference on Language Resources and Evaluation LREC 2016, 2016

DBpedia Abstracts: A Large-Scale, Open, Multilingual NLP Training Corpus.

Martin Brümmer, Milan Dojchinovski, Sebastian Hellmann

Proceedings of the Tenth International Conference on Language Resources and Evaluation LREC 2016, 2016

DBpedia Links: The Crossroad of Links for the Web of Data.

Milan Dojchinovski, Dimitris Kontokostas, Robert Rößling, Magnus Knuth, Sebastian Hellmann

Proceedings of the Joint Proceedings of the Posters and Demos Track of the 12th International Conference on Semantic Systems, 2016

Towards Sustainable Extract-Transform-Load Fusion of Company Data.

Kay Müller, Claus Stadler, Ritesh Kumar Singh, Sebastian Hellmann

Proceedings of the Joint Proceedings of the 2nd Workshop on Managing the Evolution and Preservation of the Data Web (MEPDaW 2016) and the 3rd Workshop on Linked Data Quality (LDQ 2016) co-located with 13th European Semantic Web Conference (ESWC 2016), 2016

Semantically Enhanced Quality Assurance in the JURION Business Use Case.

Dimitris Kontokostas, Christian Mader, Christian Dirschl, Katja Eck, Michael Leuthold, Jens Lehmann, Sebastian Hellmann

Proceedings of the Semantic Web. Latest Advances and New Domains, 2016

2015

Integrating Natural Language Processing (NLP) and Language Resources Using Linked Data

Sebastian Hellmann

PhD thesis, 2015

Multilingual linked data.

John P. McCrae, Steven Moran, Sebastian Hellmann, Martin Brümmer

Semantic Web, 2015

DBpedia - A large-scale, multilingual knowledge base extracted from Wikipedia.

Jens Lehmann, Robert Isele, Max Jakob, Anja Jentzsch, Dimitris Kontokostas, Pablo N. Mendes, Sebastian Hellmann, Mohamed Morsey, Patrick van Kleef, Sören Auer, Christian Bizer

Semantic Web, 2015

DBpedia Commons: Structured Multimedia Metadata from the Wikimedia Commons.

Gaurav Vaidya, Dimitris Kontokostas, Magnus Knuth, Jens Lehmann, Sebastian Hellmann

Proceedings of the Semantic Web - ISWC 2015, 2015

Test-driven Assessment of [R2]RML Mappings to Improve Dataset Quality.

Anastasia Dimou, Dimitris Kontokostas, Markus Freudenberg, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann, Rik Van de Walle

Proceedings of the ISWC 2015 Posters & Demonstrations Track co-located with the 14th International Semantic Web Conference (ISWC-2015), 2015

Assessing and Refining Mappings to RDF to Improve Dataset Quality.

Anastasia Dimou, Dimitris Kontokostas, Markus Freudenberg, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann, Rik Van de Walle

Proceedings of the Semantic Web - ISWC 2015, 2015

2014

Knowledge Base Creation, Enrichment and Repair.

Sebastian Hellmann, Volha Bryl, Lorenz Bühmann, Milan Dojchinovski, Dimitris Kontokostas, Jens Lehmann, Uros Milosevic, Petar Petrovski, Vojtech Svátek, Mladen Stanojevic, Ondrej Zamazal

Proceedings of the Linked Open Data - Creating Knowledge Out of Interlinked Data, 2014

DBpedia Viewer - An Integrative Interface for DBpedia leveraging the DBpedia Service Eco System.

Denis Lukovnikov, Dimitris Kontokostas, Claus Stadler, Sebastian Hellmann, Jens Lehmann

Proceedings of the Workshop on Linked Data on the Web co-located with the 23rd International World Wide Web Conference (WWW 2014), 2014

Test-driven evaluation of linked data quality.

Dimitris Kontokostas, Patrick Westphal, Sören Auer, Sebastian Hellmann, Jens Lehmann, Roland Cornelissen, Amrapali Zaveri

Proceedings of the 23rd International World Wide Web Conference, 2014

Databugger: a test-driven framework for debugging the web of data.

Dimitris Kontokostas, Patrick Westphal, Sören Auer, Sebastian Hellmann, Jens Lehmann, Roland Cornelissen

Proceedings of the 23rd International World Wide Web Conference, 2014

NIF4OGGD - NLP Interchange Format for Open German Governmental Data.

Mohamed Ahmed Sherif, Sandro Athaíde Coelho, Ricardo Usbeck, Sebastian Hellmann, Jens Lehmann, Martin Brümmer, Andreas Both

Proceedings of the Ninth International Conference on Language Resources and Evaluation, 2014

N³ - A Collection of Datasets for Named Entity Recognition and Disambiguation in the NLP Interchange Format.

Michael Röder, Ricardo Usbeck, Sebastian Hellmann, Daniel Gerber, Andreas Both

Proceedings of the Ninth International Conference on Language Resources and Evaluation, 2014

Global Intelligent Content: Active Curation of Language Resources using Linked Data.

David Lewis, Rob Brennan, Leroy Finn, Dominic Jones, Alan Meehan, Declan O'Sullivan, Sebastian Hellmann, Felix Sasaki

Proceedings of the Ninth International Conference on Language Resources and Evaluation, 2014

DataID: towards semantically rich metadata for complex datasets.

Martin Brümmer, Ciro Baron, Ivan Ermilov, Markus Freudenberg, Dimitris Kontokostas, Sebastian Hellmann

Proceedings of the 10th International Conference on Semantic Systems, 2014

NLP Data Cleansing Based on Linguistic Ontology Constraints.

Dimitris Kontokostas, Martin Brümmer, Sebastian Hellmann, Jens Lehmann, Lazaros Ioannidis

Proceedings of the Semantic Web: Trends and Challenges - 11th International Conference, 2014

2013

TowardsWeb-Scale Collaborative Knowledge Extraction.

Sebastian Hellmann, Sören Auer

Proceedings of the People's Web Meets NLP, Collaboratively Constructed Language Resources, 2013

Generating SPARQL queries using templates.

Saeedeh Shekarpour, Sören Auer, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Sebastian Hellmann, Claus Stadler

Web Intell. Agent Syst., 2013

Integrating NLP Using Linked Data.

Sebastian Hellmann, Jens Lehmann, Sören Auer, Martin Brümmer

Proceedings of the Semantic Web - ISWC 2013, 2013

NLP & DBpedia An Upward Knowledge Acquisition Spiral.

Sebastian Hellmann, Agata Filipowska, Caroline Barrière, Pablo N. Mendes, Dimitris Kontokostas

Proceedings of the NLP & DBpedia workshop co-located with the 12th International Semantic Web Conference (ISWC 2013), 2013

Real-Time RDF Extraction from Unstructured Data Streams.

Daniel Gerber, Sebastian Hellmann, Lorenz Bühmann, Tommaso Soru, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

Proceedings of the Semantic Web - ISWC 2013, 2013

2012

Internationalization of Linked Data: The case of the Greek DBpedia edition.

Dimitris Kontokostas, Charalampos Bratsas, Sören Auer, Sebastian Hellmann, Ioannis Antoniou, George Metakides

J. Web Semant., 2012

DBpedia and the live extraction of structured data from Wikipedia.

Mohamed Morsey, Jens Lehmann, Sören Auer, Claus Stadler, Sebastian Hellmann

Program, 2012

NERD meets NIF: Lifting NLP Extraction Results to the Linked Data Cloud.

Giuseppe Rizzo, Raphaël Troncy, Sebastian Hellmann, Martin Brümmer

Proceedings of the WWW2012 Workshop on Linked Data on the Web, 2012

Knowledge Extraction from Structured Sources.

Jörg Unbehauen, Sebastian Hellmann, Sören Auer, Claus Stadler

Proceedings of the Search Computing - Broadening Web Search, 2012

The Open Linguistics Working Group.

Christian Chiarcos, Sebastian Hellmann, Sebastian Nordhoff, Steven Moran, Richard Littauer, Judith Eckle-Kohler, Iryna Gurevych, Silvana Hartmann, Michael Matuschek, Christian M. Meyer

Proceedings of the Eighth International Conference on Language Resources and Evaluation, 2012

NIF Combinator: Combining NLP Tool Output.

Sebastian Hellmann, Jens Lehmann, Sören Auer, Marcus Nitzschke

Proceedings of the Knowledge Engineering and Knowledge Management, 2012

Linked-Data Aware URI Schemes for Referencing Text Fragments.

Sebastian Hellmann, Jens Lehmann, Sören Auer

Proceedings of the Knowledge Engineering and Knowledge Management, 2012

Navigation-Induced Knowledge Engineering by Example.

Sebastian Hellmann, Jens Lehmann, Jörg Unbehauen, Claus Stadler, Thanh Nghia Lam, Markus Strohmaier

Proceedings of the Semantic Technology, Second Joint International Conference, 2012

Leveraging the Crowdsourcing of Lexical Resources for Bootstrapping a Linguistic Data Cloud.

Sebastian Hellmann, Jonas Brekle, Sören Auer

Proceedings of the Semantic Technology, Second Joint International Conference, 2012

Improving the Performance of the DL-Learner SPARQL Component for Semantic Web Applications.

Didier Cherix, Sebastian Hellmann, Jens Lehmann

Proceedings of the Semantic Technology, Second Joint International Conference, 2012

The German DBpedia: A Sense Repository for Linking Entities.

Sebastian Hellmann, Claus Stadler, Jens Lehmann

Proceedings of the Linked Data in Linguistics, 2012

Linking Linguistic Resources: Examples from the Open Linguistics Working Group.

Christian Chiarcos, Sebastian Hellmann, Sebastian Nordhoff

Proceedings of the Linked Data in Linguistics, 2012

The Open Linguistics Working Group of the Open Knowledge Foundation.

Christian Chiarcos, Sebastian Hellmann, Sebastian Nordhoff

Proceedings of the Linked Data in Linguistics, 2012

Introduction and Overview.

Christian Chiarcos, Sebastian Hellmann, Sebastian Nordhoff

Proceedings of the Linked Data in Linguistics, 2012

2011

Towards a Linguistic Linked Open Data cloud: The Open Linguistics Working Group.

Christian Chiarcos, Sebastian Hellmann, Sebastian Nordhoff

Trait. Autom. des Langues, 2011

Keyword-Driven SPARQL Query Generation Leveraging Background Knowledge.

Saeedeh Shekarpour, Sören Auer, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Sebastian Hellmann, Claus Stadler

Proceedings of the 2011 IEEE/WIC/ACM International Conference on Web Intelligence, 2011

Working Group for Open Data in Linguistics: Status Quo and Perspectives.

Christian Chiarcos, Sebastian Hellmann

Proceedings of the 6th Open Knowledge Conference, 2011

OntosFeeder - A Versatile Semantic Context Provider for Web Content Authoring.

Alex Klebeck, Sebastian Hellmann, Christian Ehrlich, Sören Auer

Proceedings of the Semanic Web: Research and Applications, 2011

Learning of OWL Class Expressions on Very Large Knowledge Bases and its Applications.

Sebastian Hellmann, Jens Lehmann, Sören Auer

Proceedings of the Semantic Services, Interoperability and Web Applications, 2011

2010

HANNE - A Holistic Application for Navigational Knowledge Engineering.

Sebastian Hellmann, Jörg Unbehauen, Jens Lehmann

Proceedings of the ISWC 2010 Posters & Demonstrations Track: Collected Abstracts, 2010

Update Strategies for DBpedia Live.

Claus Stadler, Michael Martin, Jens Lehmann, Sebastian Hellmann

Proceedings of the Sixth Workshop on Scripting and Development for the Semantic Web, 2010

The Semantic Gap of Formalized Meaning.

Sebastian Hellmann

Proceedings of the Semantic Web: Research and Applications, 2010

2009

DBpedia - A crystallization point for the Web of Data.

Christian Bizer, Jens Lehmann, Georgi Kobilarov, Sören Auer, Christian Becker, Richard Cyganiak, Sebastian Hellmann

J. Web Semant., 2009

Learning of OWL Class Descriptions on Very Large Knowledge Bases.

Sebastian Hellmann, Jens Lehmann, Sören Auer

Int. J. Semantic Web Inf. Syst., 2009

Triplify: light-weight linked data publication from relational databases.

Sören Auer, Sebastian Dietzold, Jens Lehmann, Sebastian Hellmann, David Aumueller

Proceedings of the 18th International Conference on World Wide Web, 2009

LinkedGeoData: Adding a Spatial Dimension to the Web of Data.

Sören Auer, Jens Lehmann, Sebastian Hellmann

Proceedings of the Semantic Web - ISWC 2009, 8th International Semantic Web Conference, 2009

RelFinder: Revealing Relationships in RDF Knowledge Bases.

Philipp Heim, Sebastian Hellmann, Jens Lehmann, Steffen Lohmann, Timo Stegemann

Proceedings of the Semantic Multimedia, 2009

DBpedia Live Extraction.

Sebastian Hellmann, Claus Stadler, Jens Lehmann, Sören Auer

Proceedings of the On the Move to Meaningful Internet Systems: OTM 2009, 2009

Standardized Multilingual Language Resourcesfor the Web of Data.

Matthias Quasthoff, Sebastian Hellmann, Konrad Hoeffner

Proceedings of the 5th International Conference on Semantic Systems, 2009