Offices
Room 1.022
Endenicher Allee 19a, 53115 Bonn, Germany
University of Bonn, Computer Science
Tel:+49 228 73-4315
Zwickauer Straße 46
01069 Dresden, Germany
Fraunhofer IAIS
Short CV
Prof. Dr. Jens Lehmann (http://www.jens-lehmann.org) leads the „Smart Data Analytics“ research group at the University of Bonn and Fraunhofer IAIS with approximately 40 researchers and is lead scientist at Fraunhofer IAIS in the Enterprise Information Systems department. His research interests involve Semantic Web, machine learning, question answering & dialogue systems, distributed computing and knowledge representation. Prof. Lehmann authored more than 120 articles in international journals and conferences, 50 of those in A level venues winning 12 best paper awards. His articles are cited more than 20000 times. In several major conferences and journals, he has leading positions. He is founder, leader or contributor of several community research projects, including SANSA, AskNow, DL-Learner, DBpedia and LinkedGeoData. Previously, he completed his PhD with „summa cum laude“ at the University of Leipzig with visits to the University of Oxford.
Research Interests
- Machine Learning
- Semantic Web & Knowledge Graphs
- Conversational AI
Publications
274 entries « ‹ 2 of 6
› » 2019
Ibrahim, Shimaa; Fathalla, Said; Yazdi, Hamed Shariat; Lehmann, Jens; Jabeen, Hajira
From Monolingual to Multilingual Ontologies: The Role of Cross-Lingual
Ontology Enrichment Inproceedings
In: Semantic Systems. The Power of AI and Knowledge Graphs - 15th International
Conference, SEMANTiCS 2019, Karlsruhe, Germany, September 9-12, 2019,
Proceedings, pp. 215–230, Springer, 2019.
@inproceedings{DBLP:conf/i-semantics/IbrahimFY0J19,
title = {From Monolingual to Multilingual Ontologies: The Role of Cross-Lingual
Ontology Enrichment},
author = {Shimaa Ibrahim and
Said Fathalla and
Hamed Shariat Yazdi and
Jens Lehmann and
Hajira Jabeen},
url = {https://doi.org/10.1007/978-3-030-33220-4_16},
doi = {10.1007/978-3-030-33220-4_16},
year = {2019},
date = {2019-01-01},
booktitle = {Semantic Systems. The Power of AI and Knowledge Graphs - 15th International
Conference, SEMANTiCS 2019, Karlsruhe, Germany, September 9-12, 2019,
Proceedings},
volume = {11702},
pages = {215--230},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Sui, Danning; Sejdiu, Gezim; Graux, Damien; Lehmann, Jens
The Hubs and Authorities Transaction Network Analysis using the SANSA
framework Inproceedings
In: Proceedings of the Posters and Demo Track of the 15th International
Conference on Semantic Systems co-located with 15th International
Conference on Semantic Systems (SEMANTiCS 2019), Karlsruhe, Germany,
September 9th - to - 12th, 2019, CEUR-WS.org, 2019.
@inproceedings{DBLP:conf/i-semantics/SuiSG019,
title = {The Hubs and Authorities Transaction Network Analysis using the SANSA
framework},
author = {Danning Sui and
Gezim Sejdiu and
Damien Graux and
Jens Lehmann},
url = {http://ceur-ws.org/Vol-2451/paper-25.pdf},
year = {2019},
date = {2019-01-01},
booktitle = {Proceedings of the Posters and Demo Track of the 15th International
Conference on Semantic Systems co-located with 15th International
Conference on Semantic Systems (SEMANTiCS 2019), Karlsruhe, Germany,
September 9th - to - 12th, 2019},
volume = {2451},
publisher = {CEUR-WS.org},
series = {CEUR Workshop Proceedings},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Maqbool, Fahad; Razzaq, Saad; Lehmann, Jens; Jabeen, Hajira
Scalable Distributed Genetic Algorithm Using Apache Spark (S-GA) Inproceedings
In: Intelligent Computing Theories and Application - 15th International
Conference, ICIC 2019, Nanchang, China, August 3-6, 2019, Proceedings,
Part I, pp. 424–435, Springer, 2019.
@inproceedings{DBLP:conf/icic/MaqboolR0J19,
title = {Scalable Distributed Genetic Algorithm Using Apache Spark (S-GA)},
author = {Fahad Maqbool and
Saad Razzaq and
Jens Lehmann and
Hajira Jabeen},
url = {https://doi.org/10.1007/978-3-030-26763-6_41},
doi = {10.1007/978-3-030-26763-6_41},
year = {2019},
date = {2019-01-01},
booktitle = {Intelligent Computing Theories and Application - 15th International
Conference, ICIC 2019, Nanchang, China, August 3-6, 2019, Proceedings,
Part I},
volume = {11643},
pages = {424--435},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Mami, Mohamed Nadjib; Graux, Damien; Scerri, Simon; Jabeen, Hajira; Auer, Sören; Lehmann, Jens
Uniform Access to Multiform Data Lakes using Semantic Technologies Inproceedings
In: Proceedings of the 21st International Conference on Information Integration
and Web-based Applications & Services, iiWAS 2019, Munich, Germany,
December 2-4, 2019, pp. 313–322, ACM, 2019.
@inproceedings{DBLP:conf/iiwas/MamiGSJAL19,
title = {Uniform Access to Multiform Data Lakes using Semantic Technologies},
author = {Mohamed Nadjib Mami and
Damien Graux and
Simon Scerri and
Hajira Jabeen and
Sören Auer and
Jens Lehmann},
url = {https://doi.org/10.1145/3366030.3366054},
doi = {10.1145/3366030.3366054},
year = {2019},
date = {2019-01-01},
booktitle = {Proceedings of the 21st International Conference on Information Integration
and Web-based Applications & Services, iiWAS 2019, Munich, Germany,
December 2-4, 2019},
pages = {313--322},
publisher = {ACM},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Sakor, Ahmad; Mulang, Isaiah Onando; Singh, Kuldeep; Shekarpour, Saeedeh; Vidal, Maria-Esther; Lehmann, Jens; Auer, Sören
Old is Gold: Linguistic Driven Approach for Entity and Relation Linking
of Short Text Inproceedings
In: Proceedings of the 2019 Conference of the North American Chapter of
the Association for Computational Linguistics: Human Language Technologies,
NAACL-HLT 2019, Minneapolis, MN, USA, June 2-7, 2019, Volume 1 (Long
and Short Papers), pp. 2336–2346, Association for Computational Linguistics, 2019.
@inproceedings{DBLP:conf/naacl/SakorMSSV0A19,
title = {Old is Gold: Linguistic Driven Approach for Entity and Relation Linking
of Short Text},
author = {Ahmad Sakor and
Isaiah Onando Mulang and
Kuldeep Singh and
Saeedeh Shekarpour and
Maria-Esther Vidal and
Jens Lehmann and
Sören Auer},
url = {https://doi.org/10.18653/v1/n19-1243},
doi = {10.18653/v1/n19-1243},
year = {2019},
date = {2019-01-01},
booktitle = {Proceedings of the 2019 Conference of the North American Chapter of
the Association for Computational Linguistics: Human Language Technologies,
NAACL-HLT 2019, Minneapolis, MN, USA, June 2-7, 2019, Volume 1 (Long
and Short Papers)},
pages = {2336--2346},
publisher = {Association for Computational Linguistics},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Ali, Mehdi; Vahdati, Sahar; Singh, Shruti; Dasgupta, Sourish; Lehmann, Jens
Improving Access to Science for Social Good Inproceedings
In: Machine Learning and Knowledge Discovery in Databases - International
Workshops of ECML PKDD 2019, Würzburg, Germany, September
16-20, 2019, Proceedings, Part I, pp. 658–673, Springer, 2019.
@inproceedings{DBLP:conf/pkdd/AliVSD019,
title = {Improving Access to Science for Social Good},
author = {Mehdi Ali and
Sahar Vahdati and
Shruti Singh and
Sourish Dasgupta and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-43823-4_52},
doi = {10.1007/978-3-030-43823-4_52},
year = {2019},
date = {2019-01-01},
booktitle = {Machine Learning and Knowledge Discovery in Databases - International
Workshops of ECML PKDD 2019, Würzburg, Germany, September
16-20, 2019, Proceedings, Part I},
volume = {1167},
pages = {658--673},
publisher = {Springer},
series = {Communications in Computer and Information Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Sadeghi, Afshin; Lehmann, Jens
Linking Physicians to Medical Research Results via Knowledge Graph
Embeddings and Twitter Inproceedings
In: Machine Learning and Knowledge Discovery in Databases - International
Workshops of ECML PKDD 2019, Würzburg, Germany, September
16-20, 2019, Proceedings, Part I, pp. 622–630, Springer, 2019.
@inproceedings{DBLP:conf/pkdd/Sadeghi019,
title = {Linking Physicians to Medical Research Results via Knowledge Graph
Embeddings and Twitter},
author = {Afshin Sadeghi and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-43823-4_49},
doi = {10.1007/978-3-030-43823-4_49},
year = {2019},
date = {2019-01-01},
booktitle = {Machine Learning and Knowledge Discovery in Databases - International
Workshops of ECML PKDD 2019, Würzburg, Germany, September
16-20, 2019, Proceedings, Part I},
volume = {1167},
pages = {622--630},
publisher = {Springer},
series = {Communications in Computer and Information Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Ali, Mehdi; Hoyt, Charles Tapley; Domingo-Fernández, Daniel; Lehmann, Jens
Predicting Missing Links Using PyKEEN Inproceedings
In: Proceedings of the ISWC 2019 Satellite Tracks (Posters & Demonstrations,
Industry, and Outrageous Ideas) co-located with 18th International
Semantic Web Conference (ISWC 2019), Auckland, New Zealand, October
26-30, 2019, pp. 245–248, CEUR-WS.org, 2019.
@inproceedings{DBLP:conf/semweb/AliHD019,
title = {Predicting Missing Links Using PyKEEN},
author = {Mehdi Ali and
Charles Tapley Hoyt and
Daniel Domingo-Fernández and
Jens Lehmann},
url = {http://ceur-ws.org/Vol-2456/paper64.pdf},
year = {2019},
date = {2019-01-01},
booktitle = {Proceedings of the ISWC 2019 Satellite Tracks (Posters & Demonstrations,
Industry, and Outrageous Ideas) co-located with 18th International
Semantic Web Conference (ISWC 2019), Auckland, New Zealand, October
26-30, 2019},
volume = {2456},
pages = {245--248},
publisher = {CEUR-WS.org},
series = {CEUR Workshop Proceedings},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Chaudhuri, Debanjan; Rony, Md. Rashad Al Hasan; Jordan, Simon; Lehmann, Jens
Using a KG-Copy Network for Non-goal Oriented Dialogues Inproceedings
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part I, pp. 93–109, Springer, 2019.
@inproceedings{DBLP:conf/semweb/ChaudhuriRJ019,
title = {Using a KG-Copy Network for Non-goal Oriented Dialogues},
author = {Debanjan Chaudhuri and
Md. Rashad Al Hasan Rony and
Simon Jordan and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-30793-6_6},
doi = {10.1007/978-3-030-30793-6_6},
year = {2019},
date = {2019-01-01},
booktitle = {The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part I},
volume = {11778},
pages = {93--109},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Dubey, Mohnish; Banerjee, Debayan; Abdelkawi, Abdelrahman; Lehmann, Jens
LC-QAD 2.0: A Large Dataset for Complex Question Answering over Wikidata and DBpedia Inproceedings
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II, pp. 69–78, Springer, 2019.
@inproceedings{DBLP:conf/semweb/DubeyBA019,
title = {LC-QAD 2.0: A Large Dataset for Complex Question Answering over Wikidata and DBpedia},
author = {Mohnish Dubey and
Debayan Banerjee and
Abdelrahman Abdelkawi and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-30796-7_5},
doi = {10.1007/978-3-030-30796-7_5},
year = {2019},
date = {2019-01-01},
booktitle = {The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II},
volume = {11779},
pages = {69--78},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Frey, Johannes; Hofer, Marvin; Obraczka, Daniel; Lehmann, Jens; Hellmann, Sebastian
DBpedia FlexiFusion the Best of Wikipedia Wikidata Your Data Inproceedings
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II, pp. 96–112, Springer, 2019.
@inproceedings{DBLP:conf/semweb/FreyHO0H19,
title = {DBpedia FlexiFusion the Best of Wikipedia Wikidata Your Data},
author = {Johannes Frey and
Marvin Hofer and
Daniel Obraczka and
Jens Lehmann and
Sebastian Hellmann},
url = {https://doi.org/10.1007/978-3-030-30796-7_7},
doi = {10.1007/978-3-030-30796-7_7},
year = {2019},
date = {2019-01-01},
booktitle = {The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II},
volume = {11779},
pages = {96--112},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Kristiadi, Agustinus; Khan, Mohammad Asif; Lukovnikov, Denis; Lehmann, Jens; Fischer, Asja
Incorporating Literals into Knowledge Graph Embeddings Inproceedings
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part I, pp. 347–363, Springer, 2019.
@inproceedings{DBLP:conf/semweb/KristiadiKL0F19,
title = {Incorporating Literals into Knowledge Graph Embeddings},
author = {Agustinus Kristiadi and
Mohammad Asif Khan and
Denis Lukovnikov and
Jens Lehmann and
Asja Fischer},
url = {https://doi.org/10.1007/978-3-030-30793-6_20},
doi = {10.1007/978-3-030-30793-6_20},
year = {2019},
date = {2019-01-01},
booktitle = {The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part I},
volume = {11778},
pages = {347--363},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Maheshwari, Gaurav; Trivedi, Priyansh; Lukovnikov, Denis; Chakraborty, Nilesh; Fischer, Asja; Lehmann, Jens
Learning to Rank Query Graphs for Complex Question Answering over
Knowledge Graphs Inproceedings
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part I, pp. 487–504, Springer, 2019.
@inproceedings{DBLP:conf/semweb/MaheshwariTLCF019,
title = {Learning to Rank Query Graphs for Complex Question Answering over
Knowledge Graphs},
author = {Gaurav Maheshwari and
Priyansh Trivedi and
Denis Lukovnikov and
Nilesh Chakraborty and
Asja Fischer and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-30793-6_28},
doi = {10.1007/978-3-030-30793-6_28},
year = {2019},
date = {2019-01-01},
booktitle = {The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part I},
volume = {11778},
pages = {487--504},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Mami, Mohamed Nadjib; Graux, Damien; Scerri, Simon; Jabeen, Hajira; Auer, Sören; Lehmann, Jens
How to Feed the Squerall with RDF and Other Data Nuts? Inproceedings
In: Proceedings of the ISWC 2019 Satellite Tracks (Posters & Demonstrations,
Industry, and Outrageous Ideas) co-located with 18th International
Semantic Web Conference (ISWC 2019), Auckland, New Zealand, October
26-30, 2019, pp. 293–296, CEUR-WS.org, 2019.
@inproceedings{DBLP:conf/semweb/MamiGSJA019,
title = {How to Feed the Squerall with RDF and Other Data Nuts?},
author = {Mohamed Nadjib Mami and
Damien Graux and
Simon Scerri and
Hajira Jabeen and
Sören Auer and
Jens Lehmann},
url = {http://ceur-ws.org/Vol-2456/paper76.pdf},
year = {2019},
date = {2019-01-01},
booktitle = {Proceedings of the ISWC 2019 Satellite Tracks (Posters & Demonstrations,
Industry, and Outrageous Ideas) co-located with 18th International
Semantic Web Conference (ISWC 2019), Auckland, New Zealand, October
26-30, 2019},
volume = {2456},
pages = {293--296},
publisher = {CEUR-WS.org},
series = {CEUR Workshop Proceedings},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Mami, Mohamed Nadjib; Graux, Damien; Scerri, Simon; Jabeen, Hajira; Auer, Sören; Lehmann, Jens
Squerall: Virtual Ontology-Based Access to Heterogeneous and Large Data Sources Inproceedings
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II, pp. 229–245, Springer, 2019.
@inproceedings{DBLP:conf/semweb/MamiGSJA019a,
title = {Squerall: Virtual Ontology-Based Access to Heterogeneous and Large Data Sources},
author = {Mohamed Nadjib Mami and
Damien Graux and
Simon Scerri and
Hajira Jabeen and
Sören Auer and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-30796-7_15},
doi = {10.1007/978-3-030-30796-7_15},
year = {2019},
date = {2019-01-01},
booktitle = {The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II},
volume = {11779},
pages = {229--245},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Mehmood, Qaiser; Nadgeri, Abhishek; Saleem, Muhammad; Singh, Kuldeep; Ngomo, Axel-Cyrille Ngonga; Lehmann, Jens
Microbenchmarks for Question Answering Systems Using QaldGen Inproceedings
In: Proceedings of the ISWC 2019 Satellite Tracks (Posters & Demonstrations,
Industry, and Outrageous Ideas) co-located with 18th International
Semantic Web Conference (ISWC 2019), Auckland, New Zealand, October
26-30, 2019, pp. 261–264, CEUR-WS.org, 2019.
@inproceedings{DBLP:conf/semweb/MehmoodN0SN019,
title = {Microbenchmarks for Question Answering Systems Using QaldGen},
author = {Qaiser Mehmood and
Abhishek Nadgeri and
Muhammad Saleem and
Kuldeep Singh and
Axel-Cyrille Ngonga Ngomo and
Jens Lehmann},
url = {http://ceur-ws.org/Vol-2456/paper68.pdf},
year = {2019},
date = {2019-01-01},
booktitle = {Proceedings of the ISWC 2019 Satellite Tracks (Posters & Demonstrations,
Industry, and Outrageous Ideas) co-located with 18th International
Semantic Web Conference (ISWC 2019), Auckland, New Zealand, October
26-30, 2019},
volume = {2456},
pages = {261--264},
publisher = {CEUR-WS.org},
series = {CEUR Workshop Proceedings},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Singh, Kuldeep; Saleem, Muhammad; Nadgeri, Abhishek; Conrads, Felix; Pan, Jeff Z.; Ngomo, Axel-Cyrille Ngonga; Lehmann, Jens
QaldGen: Towards Microbenchmarking of Question Answering Systems over
Knowledge Graphs Inproceedings
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II, pp. 277–292, Springer, 2019.
@inproceedings{DBLP:conf/semweb/Singh0NCPN019,
title = {QaldGen: Towards Microbenchmarking of Question Answering Systems over
Knowledge Graphs},
author = {Kuldeep Singh and
Muhammad Saleem and
Abhishek Nadgeri and
Felix Conrads and
Jeff Z. Pan and
Axel-Cyrille Ngonga Ngomo and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-30796-7_18},
doi = {10.1007/978-3-030-30796-7_18},
year = {2019},
date = {2019-01-01},
booktitle = {The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II},
volume = {11779},
pages = {277--292},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Ali, Mehdi; Hoyt, Charles Tapley; Domingo-Fernández, Daniel; Lehmann, Jens; Jabeen, Hajira
BioKEEN: a library for learning and evaluating biological knowledge
graph embeddings Journal Article
In: Bioinform., 35 (18), pp. 3538–3540, 2019.
@article{DBLP:journals/bioinformatics/AliHDLJ19,
title = {BioKEEN: a library for learning and evaluating biological knowledge
graph embeddings},
author = {Mehdi Ali and
Charles Tapley Hoyt and
Daniel Domingo-Fernández and
Jens Lehmann and
Hajira Jabeen},
url = {https://doi.org/10.1093/bioinformatics/btz117},
doi = {10.1093/bioinformatics/btz117},
year = {2019},
date = {2019-01-01},
journal = {Bioinform.},
volume = {35},
number = {18},
pages = {3538--3540},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Lorena, Ana Carolina; Garcia, Lu'is Paulo F.; Lehmann, Jens; de Souto, Marc'ilio Carlos Pereira; Ho, Tin Kam
How Complex Is Your Classification Problem?: A Survey on Measuring
Classification Complexity Journal Article
In: ACM Comput. Surv., 52 (5), pp. 107:1–107:34, 2019.
@article{DBLP:journals/csur/LorenaGLSH19,
title = {How Complex Is Your Classification Problem?: A Survey on Measuring
Classification Complexity},
author = {Ana Carolina Lorena and
Lu{'i}s Paulo F. Garcia and
Jens Lehmann and
Marc{'i}lio Carlos Pereira de Souto and
Tin Kam Ho},
url = {https://doi.org/10.1145/3347711},
doi = {10.1145/3347711},
year = {2019},
date = {2019-01-01},
journal = {ACM Comput. Surv.},
volume = {52},
number = {5},
pages = {107:1--107:34},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Westphal, Patrick; Bühmann, Lorenz; Bin, Simon; Jabeen, Hajira; Lehmann, Jens
SML-Bench - A benchmarking framework for structured machine learning Journal Article
In: Semantic Web, 10 (2), pp. 231–245, 2019.
@article{DBLP:journals/semweb/WestphalBBJL19,
title = {SML-Bench - A benchmarking framework for structured machine learning},
author = {Patrick Westphal and
Lorenz Bühmann and
Simon Bin and
Hajira Jabeen and
Jens Lehmann},
url = {https://doi.org/10.3233/SW-180308},
doi = {10.3233/SW-180308},
year = {2019},
date = {2019-01-01},
journal = {Semantic Web},
volume = {10},
number = {2},
pages = {231--245},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Rula, Anisa; Palmonari, Matteo; Rubinacci, Simone; Ngomo, Axel-Cyrille Ngonga; Lehmann, Jens; Maurino, Andrea; Esteves, Diego
TISCO: Temporal scoping of facts Journal Article
In: J. Web Semant., 54 , pp. 72–86, 2019.
@article{DBLP:journals/ws/RulaPRNLME19,
title = {TISCO: Temporal scoping of facts},
author = {Anisa Rula and
Matteo Palmonari and
Simone Rubinacci and
Axel-Cyrille Ngonga Ngomo and
Jens Lehmann and
Andrea Maurino and
Diego Esteves},
url = {https://doi.org/10.1016/j.websem.2018.09.002},
doi = {10.1016/j.websem.2018.09.002},
year = {2019},
date = {2019-01-01},
journal = {J. Web Semant.},
volume = {54},
pages = {72--86},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Petersohn, Uwe; Zimmer, Sandra; Lehmann, Jens
Method for the semantic indexing of concept hierarchies, uniform representation,
use of relational database systems and generic and case-based reasoning Journal Article
In: CoRR, abs/1910.01539 , 2019.
@article{DBLP:journals/corr/abs-1910-01539,
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2018
Esteves, Diego; Rula, Anisa; Reddy, Aniketh J.; Lehmann, Jens
Towards Veracity Assessment in RDF Knowledge Bases: An Exploratory Analysis Journal Article
In: Journal of Data and Information Quality, 2018.
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Jabeen, Hajira; Dadwal, Rajjat; Sejdiu, Gezim; Lehmann, Jens
Divided We Stand Out! Forging Cohorts fOr Numeric Outlier Detection
in Large Scale Knowledge Graphs (CONOD) Inproceedings
In: Knowledge Engineering and Knowledge Management - 21st International
Conference, EKAW 2018, Nancy, France, November 12-16, 2018, Proceedings, pp. 534–548, Springer, 2018.
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Graux, Damien; Sejdiu, Gezim; Jabeen, Hajira; Lehmann, Jens; Sui, Danning; Muhs, Dominik; Pfeffer, Johannes
Profiting from Kitties on Ethereum: Leveraging Blockchain RDF with
SANSA Inproceedings
In: Proceedings of the Posters and Demos Track of the 14th International
Conference on Semantic Systems co-located with the 14th International
Conference on Semantic Systems (SEMANTiCS 2018), Vienna, Austria,
September 10-13, 2018, CEUR-WS.org, 2018.
@inproceedings{DBLP:conf/i-semantics/GrauxSJLSMP18,
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author = {Damien Graux and
Gezim Sejdiu and
Hajira Jabeen and
Jens Lehmann and
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Sejdiu, Gezim; Ermilov, Ivan; Lehmann, Jens; Mami, Mohamed Nadjib
DistLODStats: Distributed Computation of RDF Dataset Statistics Inproceedings
In: The Semantic Web - ISWC 2018 - 17th International Semantic Web Conference,
Monterey, CA, USA, October 8-12, 2018, Proceedings, Part II, pp. 206–222, Springer, 2018.
@inproceedings{DBLP:conf/semweb/SejdiuELM18,
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Sejdiu, Gezim; Ermilov, Ivan; Mami, Mohamed Nadjib; Lehmann, Jens
STATisfy Me: What Are My Stats? Inproceedings
In: 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 - 12th,
2018, CEUR-WS.org, 2018.
@inproceedings{DBLP:conf/semweb/SejdiuEML18,
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Acosta, Maribel; Zaveri, Amrapali; Simperl, Elena; Kontokostas, Dimitris; Flöck, Fabian; Lehmann, Jens
Detecting Linked Data quality issues via crowdsourcing: A DBpedia
study Journal Article
In: Semantic Web, 9 (3), pp. 303–335, 2018.
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Ismayilov, Ali; Kontokostas, Dimitris; Auer, Sören; Lehmann, Jens; Hellmann, Sebastian
Wikidata through the eyes of DBpedia Journal Article
In: Semantic Web, 9 (4), pp. 493–503, 2018.
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Chaudhuri, Debanjan; Kristiadi, Agustinus; Lehmann, Jens; Fischer, Asja
Improving Response Selection in Multi-Turn Dialogue Systems by Incorporating Domain Knowledge Inproceedings
In: Proceedings of the 22nd Conference on Computational Natural Language
Learning, CoNLL 2018, Brussels, Belgium, October 31 - November 1,
2018, pp. 497–507, Association for Computational Linguistics, 2018.
@inproceedings{DBLP:conf/conll/ChaudhuriKLF18,
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Nejad, Najmeh Mousavi; Scerri, Simon; Lehmann, Jens
KnIGHT: Mapping Privacy Policies to GDPR Inproceedings
In: Knowledge Engineering and Knowledge Management - 21st International
Conference, EKAW 2018, Nancy, France, November 12-16, 2018, Proceedings, pp. 258–272, Springer, 2018.
@inproceedings{DBLP:conf/ekaw/NejadSL18,
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author = {Najmeh Mousavi Nejad and
Simon Scerri and
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Zafar, Hamid; Napolitano, Giulio; Lehmann, Jens
Formal Query Generation for Question Answering over Knowledge Bases Inproceedings
In: The Semantic Web - 15th International Conference, ESWC 2018, Heraklion,
Crete, Greece, June 3-7, 2018, Proceedings, pp. 714–728, Springer, 2018.
@inproceedings{DBLP:conf/esws/ZafarNL18,
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Thakkar, Harsh; Punjani, Dharmen; Lehmann, Jens; Auer, Sören
Two for one: querying property graph databases using SPARQL via
gremlinator Inproceedings
In: Proceedings of the 1st ACM SIGMOD Joint International Workshop
on Graph Data Management Experiences & Systems (GRADES) and Network
Data Analytics (NDA), Houston, TX, USA, June 10, 2018, pp. 12:1–12:5, ACM, 2018.
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Westphal, Patrick; Fernández, Javier D.; Kirrane, Sabrina; Lehmann, Jens
SPIRIT: A Semantic Transparency and Compliance Stack Inproceedings
In: Proceedings of the Posters and Demos Track of the 14th International
Conference on Semantic Systems co-located with the 14th International
Conference on Semantic Systems (SEMANTiCS 2018), Vienna, Austria,
September 10-13, 2018, CEUR-WS.org, 2018.
@inproceedings{DBLP:conf/i-semantics/WestphalFKL18,
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author = {Patrick Westphal and
Javier D. Fernández and
Sabrina Kirrane and
Jens Lehmann},
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Stadler, Claus; Saleem, Muhammad; Ngomo, Axel-Cyrille Ngonga; Lehmann, Jens
Efficiently Pinpointing SPARQL Query Containments Inproceedings
In: Web Engineering - 18th International Conference, ICWE 2018, Cáceres,
Spain, June 5-8, 2018, Proceedings, pp. 210–224, Springer, 2018.
@inproceedings{DBLP:conf/icwe/Stadler0NL18,
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Collarana, Diego; Heuss, Timm; Lehmann, Jens; Lytra, Ioanna; Maheshwari, Gaurav; Nedelchev, Rostislav; Schmidt, Thorsten; Trivedi, Priyansh
A Question Answering System on Regulatory Documents Inproceedings
In: Legal Knowledge and Information Systems - JURIX 2018: The Thirty-first
Annual Conference, Groningen, The Netherlands, 12-14 December 2018, pp. 41–50, IOS Press, 2018.
@inproceedings{DBLP:conf/jurix/CollaranaHLLMNS18,
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Jens Lehmann and
Ioanna Lytra and
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Zafar, Hamid; Napolitano, Giulio; Lehmann, Jens
Deep Query Ranking for Question Answering over Knowledge Bases Inproceedings
In: Machine Learning and Knowledge Discovery in Databases - European Conference,
ECML PKDD 2018, Dublin, Ireland, September 10-14, 2018, Proceedings,
Part III, pp. 635–638, Springer, 2018.
@inproceedings{DBLP:conf/pkdd/ZafarNL18,
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Saleem, Muhammad; Mehmood, Qaiser; Stadler, Claus; Lehmann, Jens; Ngomo, Axel-Cyrille Ngonga
Generating SPARQL Query Containment Benchmarks Using the SQCFramework Inproceedings
In: 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 - 12th,
2018, CEUR-WS.org, 2018.
@inproceedings{DBLP:conf/semweb/0002MSLN18,
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Banerjee, Debayan; Dubey, Mohnish; Chaudhuri, Debanjan; Lehmann, Jens
Joint Entity and Relation Linking Using EARL Inproceedings
In: 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 - 12th,
2018, CEUR-WS.org, 2018.
@inproceedings{DBLP:conf/semweb/BanerjeeDCL18,
title = {Joint Entity and Relation Linking Using EARL},
author = {Debayan Banerjee and
Mohnish Dubey and
Debanjan Chaudhuri and
Jens Lehmann},
url = {http://ceur-ws.org/Vol-2180/paper-06.pdf},
year = {2018},
date = {2018-01-01},
booktitle = {Proceedings of the ISWC 2018 Posters & Demonstrations, Industry
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Dubey, Mohnish; Banerjee, Debayan; Chaudhuri, Debanjan; Lehmann, Jens
EARL: Joint Entity and Relation Linking for Question Answering over
Knowledge Graphs Inproceedings
In: The Semantic Web - ISWC 2018 - 17th International Semantic Web Conference,
Monterey, CA, USA, October 8-12, 2018, Proceedings, Part I, pp. 108–126, Springer, 2018.
@inproceedings{DBLP:conf/semweb/DubeyBCL18,
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Bühmann, Lorenz; Lehmann, Jens; Westphal, Patrick; Bin, Simon
DL-Learner Structured Machine Learning on Semantic Web Data Inproceedings
In: Companion of the The Web Conference 2018 on The Web Conference 2018,
WWW 2018, Lyon , France, April 23-27, 2018, pp. 467–471, ACM, 2018.
@inproceedings{DBLP:conf/www/BuhmannLWB18,
title = {DL-Learner Structured Machine Learning on Semantic Web Data},
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Jens Lehmann and
Patrick Westphal and
Simon Bin},
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Singh, Kuldeep; Radhakrishna, Arun Sethupat; Both, Andreas; Shekarpour, Saeedeh; Lytra, Ioanna; Usbeck, Ricardo; Vyas, Akhilesh; Khikmatullaev, Akmal; Punjani, Dharmen; Lange, Christoph; Vidal, Maria-Esther; Lehmann, Jens; Auer, Sören
Why Reinvent the Wheel: Let's Build Question Answering Systems Together Inproceedings
In: Proceedings of the 2018 World Wide Web Conference on World Wide Web,
WWW 2018, Lyon, France, April 23-27, 2018, pp. 1247–1256, ACM, 2018.
@inproceedings{DBLP:conf/www/SinghRBSLUVKP0V18,
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Arun Sethupat Radhakrishna and
Andreas Both and
Saeedeh Shekarpour and
Ioanna Lytra and
Ricardo Usbeck and
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Staab, Steffen; Lehmann, Jens; Verborgh, Ruben
Structured Knowledge on the Web 7.0 Inproceedings
In: Companion of the The Web Conference 2018 on The Web Conference 2018,
WWW 2018, Lyon , France, April 23-27, 2018, pp. 885–886, ACM, 2018.
@inproceedings{DBLP:conf/www/StaabLV18,
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Jens Lehmann and
Ruben Verborgh},
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Singh, Kuldeep; Lytra, Ioanna; Radhakrishna, Arun Sethupat; Shekarpour, Saeedeh; Vidal, Maria-Esther; Lehmann, Jens
No One is Perfect: Analysing the Performance of Question Answering
Components over the DBpedia Knowledge Graph Journal Article
In: CoRR, abs/1809.10044 , 2018.
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Esteves, Diego; Rula, Anisa; Reddy, Aniketh Janardhan; Lehmann, Jens
Toward Veracity Assessment in RDF Knowledge Bases: An Exploratory
Analysis Journal Article
In: J. Data and Information Quality, 9 (3), pp. 16:1–16:26, 2018.
@article{DBLP:journals/jdiq/EstevesRRL18,
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}
Dasgupta, Sourish; Padia, Ankur; Maheshwari, Gaurav; Trivedi, Priyansh; Lehmann, Jens
Formal Ontology Learning from English IS-A Sentences Journal Article
In: CoRR, abs/1802.03701 , 2018.
@article{DBLP:journals/corr/abs-1802-03701,
title = {Formal Ontology Learning from English IS-A Sentences},
author = {Sourish Dasgupta and
Ankur Padia and
Gaurav Maheshwari and
Priyansh Trivedi and
Jens Lehmann},
url = {http://arxiv.org/abs/1802.03701},
year = {2018},
date = {2018-01-01},
journal = {CoRR},
volume = {abs/1802.03701},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2017
Marx, Edgard; Shekarpour, Saeedeh; Soru, Tommaso; soveanu, Adrian M. P. Brac; Saleem, Muhammad; Baron, Ciro; Weichselbraun, Albert; Lehmann, Jens; Ngomo, Axel-Cyrille Ngonga; Auer, Sören
Torpedo: Improving the State-of-the-Art RDF Dataset Slicing Inproceedings
In: 11th IEEE International Conference on Semantic Computing, Jan 30-Feb 1, 2017, San Diego, California, USA, 2017.
@inproceedings{ICSC/2017/SLICE/Marx,
title = {Torpedo: Improving the State-of-the-Art RDF Dataset Slicing},
author = {Edgard Marx and Saeedeh Shekarpour and Tommaso Soru and Adrian M.P. Bra{c s}oveanu and Muhammad Saleem and Ciro Baron and Albert Weichselbraun and Jens Lehmann and Axel-Cyrille Ngonga Ngomo and Sören Auer},
url = {https://svn.aksw.org/papers/2017/Torpedo_ICSC/public.pdf},
year = {2017},
date = {2017-01-01},
booktitle = {11th IEEE International Conference on Semantic Computing, Jan 30-Feb 1, 2017, San Diego, California, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Kosovan, Sofiia; Lehmann, Jens; Fischer, Asja
Dialogue Response Generation using Neural Networks with Attention and Background Knowledge Inproceedings
In: Proceedings of the Computer Science Conference for University of Bonn Students (CSCUBS) 2017, 2017.
@inproceedings{kosovan-2017-cscubs-dialogues,
title = {Dialogue Response Generation using Neural Networks with Attention and Background Knowledge},
author = {Sofiia Kosovan and Jens Lehmann and Asja Fischer},
url = {http://jens-lehmann.org/files/2017/cscubs_dialogues.pdf},
year = {2017},
date = {2017-01-01},
booktitle = {Proceedings of the Computer Science Conference for University of Bonn Students (CSCUBS) 2017},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Bin, Simon; Westphal, Patrick; Lehmann, Jens; Ngonga, Axel
Implementing scalable structured machine learning for big data in
the SAKE project Inproceedings
In: 2017 IEEE International Conference on Big Data, BigData 2017, Boston,
MA, USA, December 11-14, 2017, pp. 1400–1407, IEEE Computer Society, 2017.
@inproceedings{DBLP:conf/bigdataconf/BinWLN17,
title = {Implementing scalable structured machine learning for big data in
the SAKE project},
author = {Simon Bin and
Patrick Westphal and
Jens Lehmann and
Axel Ngonga},
url = {http://jens-lehmann.org/files/2017/ieee_bigdata_sake.pdf},
doi = {10.1109/BigData.2017.8258073},
year = {2017},
date = {2017-01-01},
booktitle = {2017 IEEE International Conference on Big Data, BigData 2017, Boston,
MA, USA, December 11-14, 2017},
pages = {1400--1407},
publisher = {IEEE Computer Society},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Jabeen, Hajira; Archer, Phil; Scerri, Simon; Versteden, Aad; Ermilov, Ivan; Mouchakis, Giannis; Lehmann, Jens; Auer, Sören
Big Data Europe Inproceedings
In: Proceedings of the Workshops of the EDBT/ICDT 2017 Joint Conference
(EDBT/ICDT 2017), Venice, Italy, March 21-24, 2017, CEUR-WS.org, 2017.
@inproceedings{DBLP:conf/edbt/JabeenASVEMLA17,
title = {Big Data Europe},
author = {Hajira Jabeen and
Phil Archer and
Simon Scerri and
Aad Versteden and
Ivan Ermilov and
Giannis Mouchakis and
Jens Lehmann and
Sören Auer},
url = {http://ceur-ws.org/Vol-1810/EuroPro_paper_05.pdf},
year = {2017},
date = {2017-01-01},
booktitle = {Proceedings of the Workshops of the EDBT/ICDT 2017 Joint Conference
(EDBT/ICDT 2017), Venice, Italy, March 21-24, 2017},
volume = {1810},
publisher = {CEUR-WS.org},
series = {CEUR Workshop Proceedings},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
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