2022

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Can Machine Translation be a Reasonable Alternative for Multilingual Question Answering Systems over Knowledge Graphs?
Aleksandr Perevalov | Andreas Both | Dennis Diefenbach | Axel-Cyrille Ngonga Ngomo
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

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EvoLearner: Learning Description Logics with Evolutionary Algorithms
Stefan Heindorf | Lukas Blübaum | Nick Düsterhus | Till Werner | Varun Nandkumar Golani | Caglar Demir | Axel-Cyrille Ngonga Ngomo
WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022

2021

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Knowledge Graphs
Aidan Hogan | Eva Blomqvist | Michael Cochez | Claudia d'Amato | Gerard de Melo | Claudio Gutierrez | Sabrina Kirrane | José Emilio Labra Gayo | Roberto Navigli | Sebastian Neumaier | Axel-Cyrille Ngonga Ngomo | Axel Polleres | Sabbir M. Rashid | Anisa Rula | Lukas Schmelzeisen | Juan Sequeda | Steffen Staab | Antoine Zimmermann
2021

2020

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CauseNet: Towards a Causality Graph Extracted from the Web
Stefan Heindorf | Yan Scholten | Henning Wachsmuth | Axel-Cyrille Ngonga Ngomo | Martin Potthast
CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

2019

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How Representative Is a SPARQL Benchmark? An Analysis of RDF Triplestore Benchmarks
Muhammad Saleem | Gábor Szárnyas | Felix Conrads | Syed Ahmad Chan Bukhari | Qaiser Mehmood | Axel-Cyrille Ngonga Ngomo
The World Wide Web Conference, WWW 2019, San Francisco, CA, USA, May 13-17, 2019

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TISCO: Temporal Scoping of Facts
Anisa Rula | Matteo Palmonari | Simone Rubinacci | Axel-Cyrille Ngonga Ngomo | Jens Lehmann | Andrea Maurino | Diego Esteves
Companion of The 2019 World Wide Web Conference, WWW 2019, San Francisco, CA, USA, May 13-17, 2019

2018

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FactCheck: Validating RDF Triples Using Textual Evidence
Zafar Habeeb Syed | Michael Röder | Axel-Cyrille Ngonga Ngomo
Proceedings of the 27th ACM International Conference on Information and Knowledge Management, CIKM 2018, Torino, Italy, October 22-26, 2018

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Enhancing Community Interactions with Data-Driven Chatbots-The DBpedia Chatbot
Ram G. Athreya | Axel-Cyrille Ngonga Ngomo | Ricardo Usbeck
Companion of the The Web Conference 2018 on The Web Conference 2018, WWW 2018, Lyon , France, April 23-27, 2018

2017

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SIGIR 2017 Workshop on Open Knowledge Base and Question Answering (OKBQA2017)
Key-Sun Choi | Teruko Mitamura | Piek Vossen | Jin-Dong Kim | Axel-Cyrille Ngonga Ngomo
Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

2015

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Interlinking: Performance Assessment of User Evaluation vs. Supervised Learning Approaches
Mofeed Mohamed Hassan | Jens Lehmann | Axel-Cyrille Ngonga Ngomo
Proceedings of the Workshop on Linked Data on the Web, LDOW 2015, co-located with the 24th International World Wide Web Conference (WWW 2015), Florence, Italy, May 19th, 2015

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Question Answering over Linked Data (QALD-5)
Christina Unger | Corina Forascu | Vanessa López | Axel-Cyrille Ngonga Ngomo | Elena Cabrio | Philipp Cimiano | Sebastian Walter
Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015

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HAWK@QALD5 - Trying to Answer Hybrid Questions with Various Simple Ranking Techniques
Ricardo Usbeck | Axel-Cyrille Ngonga Ngomo
Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015

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GERBIL: General Entity Annotator Benchmarking Framework
Ricardo Usbeck | Michael Röder | Axel-Cyrille Ngonga Ngomo | Ciro Baron | Andreas Both | Martin Brümmer | Diego Ceccarelli | Marco Cornolti | Didier Cherix | Bernd Eickmann | Paolo Ferragina | Christiane Lemke | Andrea Moro | Roberto Navigli | Francesco Piccinno | Giuseppe Rizzo | Harald Sack | René Speck | Raphaël Troncy | Jörg Waitelonis | Lars Wesemann
Proceedings of the 24th International Conference on World Wide Web, WWW 2015, Florence, Italy, May 18-22, 2015

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ROCKER: A Refinement Operator for Key Discovery
Tommaso Soru | Edgard Marx | Axel-Cyrille Ngonga Ngomo
Proceedings of the 24th International Conference on World Wide Web, WWW 2015, Florence, Italy, May 18-22, 2015

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CubeViz: Exploration and Visualization of Statistical Linked Data
Michael Martin | Konrad Abicht | Claus Stadler | Axel-Cyrille Ngonga Ngomo | Tommaso Soru | Sören Auer
Proceedings of the 24th International Conference on World Wide Web Companion, WWW 2015, Florence, Italy, May 18-22, 2015 - Companion Volume

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Pushing the Limits of Instance Matching Systems: A Semantics-Aware Benchmark for Linked Data
Tzanina Saveta | Evangelia Daskalaki | Giorgos Flouris | Irini Fundulaki | Melanie Herschel | Axel-Cyrille Ngonga Ngomo
Proceedings of the 24th International Conference on World Wide Web Companion, WWW 2015, Florence, Italy, May 18-22, 2015 - Companion Volume

2014

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Overview of CLEF Question Answering Track 2014
Anselmo Peñas | Christina Unger | Axel-Cyrille Ngonga Ngomo
Information Access Evaluation. Multilinguality, Multimodality, and Interaction - 5th International Conference of the CLEF Initiative, CLEF 2014, Sheffield, UK, September 15-18, 2014. Proceedings

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Results of the BioASQ Track of the Question Answering Lab at CLEF 2014
Georgios Balikas | Ioannis Partalas | Axel-Cyrille Ngonga Ngomo | Anastasia Krithara | Georgios Paliouras
Working Notes for CLEF 2014 Conference, Sheffield, UK, September 15-18, 2014

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Question Answering over Linked Data (QALD-4)
Christina Unger | Corina Forascu | Vanessa López | Axel-Cyrille Ngonga Ngomo | Elena Cabrio | Philipp Cimiano | Sebastian Walter
Working Notes for CLEF 2014 Conference, Sheffield, UK, September 15-18, 2014

2013

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Results of the First BioASQ Workshop
Ioannis Partalas | Éric Gaussier | Axel-Cyrille Ngonga Ngomo
Proceedings of the first Workshop on Bio-Medical Semantic Indexing and Question Answering, a Post-Conference Workshop of Conference and Labs of the Evaluation Forum 2013 (CLEF 2013) , Valencia, Spain, September 27th, 2013

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Proceedings of the first Workshop on Bio-Medical Semantic Indexing and Question Answering, a Post-Conference Workshop of Conference and Labs of the Evaluation Forum 2013 (CLEF 2013) , Valencia, Spain, September 27th, 2013

Proceedings of the first Workshop on Bio-Medical Semantic Indexing and Question Answering, a Post-Conference Workshop of Conference and Labs of the Evaluation Forum 2013 (CLEF 2013) , Valencia, Spain, September 27th, 2013

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QALD-3: Multilingual Question Answering over Linked Data
Elena Cabrio | Philipp Cimiano | Vanessa López | Axel-Cyrille Ngonga Ngomo | Christina Unger | Sebastian Walter
Working Notes for CLEF 2013 Conference , Valencia, Spain, September 23-26, 2013

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Multilingual Question Answering over Linked Data (QALD-3): Lab Overview
Philipp Cimiano | Vanessa López | Christina Unger | Elena Cabrio | Axel-Cyrille Ngonga Ngomo | Sebastian Walter
Information Access Evaluation. Multilinguality, Multimodality, and Visualization - 4th International Conference of the CLEF Initiative, CLEF 2013, Valencia, Spain, September 23-26, 2013. Proceedings

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SPARQL2NL: verbalizing sparql queries
Axel-Cyrille Ngonga Ngomo | Lorenz Bühmann | Christina Unger | Jens Lehmann | Daniel Gerber
22nd International World Wide Web Conference, WWW '13, Rio de Janeiro, Brazil, May 13-17, 2013, Companion Volume

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Question answering on interlinked data
Saeedeh Shekarpour | Axel-Cyrille Ngonga Ngomo | Sören Auer
22nd International World Wide Web Conference, WWW '13, Rio de Janeiro, Brazil, May 13-17, 2013

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Sorry, i don't speak SPARQL: translating SPARQL queries into natural language
Axel-Cyrille Ngonga Ngomo | Lorenz Bühmann | Christina Unger | Jens Lehmann | Daniel Gerber
22nd International World Wide Web Conference, WWW '13, Rio de Janeiro, Brazil, May 13-17, 2013

2012

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Template-based question answering over RDF data
Christina Unger | Lorenz Bühmann | Jens Lehmann | Axel-Cyrille Ngonga Ngomo | Daniel Gerber | Philipp Cimiano
Proceedings of the 21st World Wide Web Conference 2012, WWW 2012, Lyon, France, April 16-20, 2012