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
262 entries « ‹ 1 of 6
› » 2021
Oliveira, Italo Lopes; Fileto, Renato; Speck, René; Garcia, Lu'is Paulo F.; Moussallem, Diego; Lehmann, Jens
Towards holistic Entity Linking: Survey and directions Journal Article
In: Inf. Syst., 95 , pp. 101624, 2021.
@article{DBLP:journals/is/OliveiraFSGML21,
title = {Towards holistic Entity Linking: Survey and directions},
author = {Italo Lopes Oliveira and
Renato Fileto and
René Speck and
Lu{'i}s Paulo F. Garcia and
Diego Moussallem and
Jens Lehmann},
url = {https://doi.org/10.1016/j.is.2020.101624},
doi = {10.1016/j.is.2020.101624},
year = {2021},
date = {2021-01-01},
journal = {Inf. Syst.},
volume = {95},
pages = {101624},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Nayyeri, Mojtaba; Vahdati, Sahar; Aykul, Can; Lehmann, Jens
5ast Knowledge Graph Embeddings with Projective Transformations Inproceedings
In: Thirty-Fifth AAAI Conference on Artificial Intelligence, AAAI
2021, Thirty-Third Conference on Innovative Applications of Artificial
Intelligence, IAAI 2021, The Eleventh Symposium on Educational Advances
in Artificial Intelligence, EAAI 2021, Virtual Event, February 2-9,
2021, pp. 9064–9072, AAAI Press, 2021.
@inproceedings{DBLP:conf/aaai/NayyeriVA021,
title = {5ast Knowledge Graph Embeddings with Projective Transformations},
author = {Mojtaba Nayyeri and
Sahar Vahdati and
Can Aykul and
Jens Lehmann},
url = {https://ojs.aaai.org/index.php/AAAI/article/view/17095},
year = {2021},
date = {2021-01-01},
booktitle = {Thirty-Fifth AAAI Conference on Artificial Intelligence, AAAI
2021, Thirty-Third Conference on Innovative Applications of Artificial
Intelligence, IAAI 2021, The Eleventh Symposium on Educational Advances
in Artificial Intelligence, EAAI 2021, Virtual Event, February 2-9,
2021},
pages = {9064--9072},
publisher = {AAAI Press},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Kacupaj, Endri; Banerjee, Barshana; Singh, Kuldeep; Lehmann, Jens
ParaQA: A Question Answering Dataset with Paraphrase Responses for Single-Turn Conversation Inproceedings
In: The Semantic Web - 18th International Conference, ESWC 2021, Virtual
Event, June 6-10, 2021, Proceedings, pp. 598–613, Springer, 2021.
@inproceedings{DBLP:conf/esws/KacupajB0L21,
title = {ParaQA: A Question Answering Dataset with Paraphrase Responses for Single-Turn Conversation},
author = {Endri Kacupaj and
Barshana Banerjee and
Kuldeep Singh and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-77385-4_36},
doi = {10.1007/978-3-030-77385-4_36},
year = {2021},
date = {2021-01-01},
booktitle = {The Semantic Web - 18th International Conference, ESWC 2021, Virtual
Event, June 6-10, 2021, Proceedings},
volume = {12731},
pages = {598--613},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
2020
Jabeen, Hajira; Haziiev, Eskender; Sejdiu, Gezim; Lehmann, Jens
DISE: A Distributed in-Memory SPARQL Processing Engine over Tensor Data Inproceedings
In: IEEE 14th International Conference on Semantic Computing, ICSC
2020, San Diego, CA, USA, February 3-5, 2020, pp. 400–407, IEEE, 2020.
@inproceedings{DBLP:conf/semco/JabeenHS020,
title = {DISE: A Distributed in-Memory SPARQL Processing Engine over Tensor Data},
author = {Hajira Jabeen and
Eskender Haziiev and
Gezim Sejdiu and
Jens Lehmann},
url = {https://doi.org/10.1109/ICSC.2020.00079},
doi = {10.1109/ICSC.2020.00079},
year = {2020},
date = {2020-01-01},
booktitle = {IEEE 14th International Conference on Semantic Computing, ICSC
2020, San Diego, CA, USA, February 3-5, 2020},
pages = {400--407},
publisher = {IEEE},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Thakkar, Harsh; Angles, Renzo; Rodriguez, Marko; Mallette, Stephen; Lehmann, Jens
Let's build Bridges, not Walls: SPARQL Querying of TinkerPop Graph Databases with Sparql-Gremlin Inproceedings
In: IEEE 14th International Conference on Semantic Computing, ICSC
2020, San Diego, CA, USA, February 3-5, 2020, pp. 408–415, IEEE, 2020.
@inproceedings{DBLP:conf/semco/ThakkarARM020,
title = {Let's build Bridges, not Walls: SPARQL Querying of TinkerPop Graph Databases with Sparql-Gremlin},
author = {Harsh Thakkar and
Renzo Angles and
Marko Rodriguez and
Stephen Mallette and
Jens Lehmann},
url = {https://doi.org/10.1109/ICSC.2020.00080},
doi = {10.1109/ICSC.2020.00080},
year = {2020},
date = {2020-01-01},
booktitle = {IEEE 14th International Conference on Semantic Computing, ICSC
2020, San Diego, CA, USA, February 3-5, 2020},
pages = {408--415},
publisher = {IEEE},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Musyaffa, Fathoni A.; Vidal, Maria-Esther; Orlandi, Fabrizio; Lehmann, Jens; Jabeen, Hajira
IOTA: Interlinking of heterogeneous multilingual open fiscal DaTA Journal Article
In: Expert Syst. Appl., 147 , pp. 113135, 2020.
@article{DBLP:journals/eswa/MusyaffaVOLJ20,
title = {IOTA: Interlinking of heterogeneous multilingual open fiscal DaTA},
author = {Fathoni A. Musyaffa and
Maria-Esther Vidal and
Fabrizio Orlandi and
Jens Lehmann and
Hajira Jabeen},
url = {https://doi.org/10.1016/j.eswa.2019.113135},
doi = {10.1016/j.eswa.2019.113135},
year = {2020},
date = {2020-01-01},
journal = {Expert Syst. Appl.},
volume = {147},
pages = {113135},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Kacupaj, Endri; Zafar, Hamid; Lehmann, Jens; Maleshkova, Maria
VQuAnDa: Verbalization QUestion ANswering DAtaset Inproceedings
In: The Semantic Web - 17th International Conference, ESWC 2020, Heraklion,
Crete, Greece, May 31-June 4, 2020, Proceedings, pp. 531–547, Springer, 2020.
@inproceedings{DBLP:conf/esws/KacupajZ0M20,
title = {VQuAnDa: Verbalization QUestion ANswering DAtaset},
author = {Endri Kacupaj and
Hamid Zafar and
Jens Lehmann and
Maria Maleshkova},
url = {https://doi.org/10.1007/978-3-030-49461-2_31},
doi = {10.1007/978-3-030-49461-2_31},
year = {2020},
date = {2020-01-01},
booktitle = {The Semantic Web - 17th International Conference, ESWC 2020, Heraklion,
Crete, Greece, May 31-June 4, 2020, Proceedings},
volume = {12123},
pages = {531--547},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Nayyeri, Mojtaba; Vahdati, Sahar; Zhou, Xiaotian; Yazdi, Hamed Shariat; Lehmann, Jens
Embedding-Based Recommendations on Scholarly Knowledge Graphs Inproceedings
In: The Semantic Web - 17th International Conference, ESWC 2020, Heraklion,
Crete, Greece, May 31-June 4, 2020, Proceedings, pp. 255–270, Springer, 2020.
@inproceedings{DBLP:conf/esws/NayyeriVZY020,
title = {Embedding-Based Recommendations on Scholarly Knowledge Graphs},
author = {Mojtaba Nayyeri and
Sahar Vahdati and
Xiaotian Zhou and
Hamed Shariat Yazdi and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-49461-2_15},
doi = {10.1007/978-3-030-49461-2_15},
year = {2020},
date = {2020-01-01},
booktitle = {The Semantic Web - 17th International Conference, ESWC 2020, Heraklion,
Crete, Greece, May 31-June 4, 2020, Proceedings},
volume = {12123},
pages = {255--270},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Nedelchev, Rostislav; Usbeck, Ricardo; Lehmann, Jens
Treating Dialogue Quality Evaluation as an Anomaly Detection Problem Inproceedings
In: Proceedings of The 12th Language Resources and Evaluation Conference,
LREC 2020, Marseille, France, May 11-16, 2020, pp. 508–512, European Language Resources Association, 2020.
@inproceedings{DBLP:conf/lrec/NedelchevUL20,
title = {Treating Dialogue Quality Evaluation as an Anomaly Detection Problem},
author = {Rostislav Nedelchev and
Ricardo Usbeck and
Jens Lehmann},
url = {https://www.aclweb.org/anthology/2020.lrec-1.64/},
year = {2020},
date = {2020-01-01},
booktitle = {Proceedings of The 12th Language Resources and Evaluation Conference,
LREC 2020, Marseille, France, May 11-16, 2020},
pages = {508--512},
publisher = {European Language Resources Association},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Ali, Mehdi; Berrendorf, Max; Hoyt, Charles Tapley; Vermue, Laurent; Galkin, Mikhail; Sharifzadeh, Sahand; Fischer, Asja; Tresp, Volker; Lehmann, Jens
Bringing Light Into the Dark: A Large-scale Evaluation of Knowledge Graph Embedding Models Under a Unified Framework Miscellaneous
2020.
@misc{DBLP:journals/corr/abs-2006-13365,
title = {Bringing Light Into the Dark: A Large-scale Evaluation of Knowledge Graph Embedding Models Under a Unified Framework},
author = {Mehdi Ali and
Max Berrendorf and
Charles Tapley Hoyt and
Laurent Vermue and
Mikhail Galkin and
Sahand Sharifzadeh and
Asja Fischer and
Volker Tresp and
Jens Lehmann},
url = {https://arxiv.org/abs/2006.13365},
year = {2020},
date = {2020-01-01},
journal = {CoRR},
volume = {abs/2006.13365},
keywords = {},
pubstate = {published},
tppubtype = {misc}
}
Jabeen, Hajira; Weinz, Jonas; Lehmann, Jens
AutoChef: Automated Generation of Cooking Recipes Inproceedings
In: IEEE Congress on Evolutionary Computation, CEC 2020, Glasgow,
United Kingdom, July 19-24, 2020, pp. 1–7, IEEE, 2020.
@inproceedings{DBLP:conf/cec/JabeenWL20,
title = {AutoChef: Automated Generation of Cooking Recipes},
author = {Hajira Jabeen and
Jonas Weinz and
Jens Lehmann},
url = {https://doi.org/10.1109/CEC48606.2020.9185605},
doi = {10.1109/CEC48606.2020.9185605},
year = {2020},
date = {2020-01-01},
booktitle = {IEEE Congress on Evolutionary Computation, CEC 2020, Glasgow,
United Kingdom, July 19-24, 2020},
pages = {1--7},
publisher = {IEEE},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Say, Zeynep; Fathalla, Said; Vahdati, Sahar; Lehmann, Jens; Auer, Sören
Ontology Design for Pharmaceutical Research Outcomes Inproceedings
In: Digital Libraries for Open Knowledge - 24th International Conference
on Theory and Practice of Digital Libraries, TPDL 2020, Lyon, France,
August 25-27, 2020, Proceedings, pp. 119–132, Springer, 2020.
@inproceedings{DBLP:conf/ercimdl/SayFV0A20,
title = {Ontology Design for Pharmaceutical Research Outcomes},
author = {Zeynep Say and
Said Fathalla and
Sahar Vahdati and
Jens Lehmann and
Sören Auer},
url = {https://doi.org/10.1007/978-3-030-54956-5_9},
doi = {10.1007/978-3-030-54956-5_9},
year = {2020},
date = {2020-01-01},
booktitle = {Digital Libraries for Open Knowledge - 24th International Conference
on Theory and Practice of Digital Libraries, TPDL 2020, Lyon, France,
August 25-27, 2020, Proceedings},
volume = {12246},
pages = {119--132},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Sadeghi, Afshin; Graux, Damien; Yazdi, Hamed Shariat; Lehmann, Jens
MDE: Multiple Distance Embeddings for Link Prediction in Knowledge Graphs Inproceedings
In: ECAI 2020 - 24th European Conference on Artificial Intelligence,
29 August-8 September 2020, Santiago de Compostela, Spain, August
29 - September 8, 2020 - Including 10th Conference on Prestigious
Applications of Artificial Intelligence (PAIS 2020), pp. 1427–1434, IOS Press, 2020.
@inproceedings{DBLP:conf/ecai/SadeghiGY020,
title = {MDE: Multiple Distance Embeddings for Link Prediction in Knowledge Graphs},
author = {Afshin Sadeghi and
Damien Graux and
Hamed Shariat Yazdi and
Jens Lehmann},
url = {https://doi.org/10.3233/FAIA200248},
doi = {10.3233/FAIA200248},
year = {2020},
date = {2020-01-01},
booktitle = {ECAI 2020 - 24th European Conference on Artificial Intelligence,
29 August-8 September 2020, Santiago de Compostela, Spain, August
29 - September 8, 2020 - Including 10th Conference on Prestigious
Applications of Artificial Intelligence (PAIS 2020)},
volume = {325},
pages = {1427--1434},
publisher = {IOS Press},
series = {Frontiers in Artificial Intelligence and Applications},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Zafar, Hamid; Tavakol, Maryam; Lehmann, Jens
Distantly Supervised Question Parsing Inproceedings
In: ECAI 2020 - 24th European Conference on Artificial Intelligence,
29 August-8 September 2020, Santiago de Compostela, Spain, August
29 - September 8, 2020 - Including 10th Conference on Prestigious
Applications of Artificial Intelligence (PAIS 2020), pp. 2290–2297, IOS Press, 2020.
@inproceedings{DBLP:conf/ecai/ZafarT020,
title = {Distantly Supervised Question Parsing},
author = {Hamid Zafar and
Maryam Tavakol and
Jens Lehmann},
url = {https://doi.org/10.3233/FAIA200357},
doi = {10.3233/FAIA200357},
year = {2020},
date = {2020-01-01},
booktitle = {ECAI 2020 - 24th European Conference on Artificial Intelligence,
29 August-8 September 2020, Santiago de Compostela, Spain, August
29 - September 8, 2020 - Including 10th Conference on Prestigious
Applications of Artificial Intelligence (PAIS 2020)},
volume = {325},
pages = {2290--2297},
publisher = {IOS Press},
series = {Frontiers in Artificial Intelligence and Applications},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Chau, Minh Triet; Esteves, Diego; Lehmann, Jens
A Neural-based model to Predict the Future Natural Gas Market Price
through Open-domain Event Extraction Inproceedings
In: Proceedings of the 1st International Workshop on Cross-lingual Event-centric
Open Analytics co-located with the 17th Extended Semantic Web Conference
(ESWC 2020), Heraklion, Crete, Greece, June 3, 2020 (online event
due to COVID-19 outbreak), pp. 17–31, CEUR-WS.org, 2020.
@inproceedings{DBLP:conf/esws/ChauE020,
title = {A Neural-based model to Predict the Future Natural Gas Market Price
through Open-domain Event Extraction},
author = {Minh Triet Chau and
Diego Esteves and
Jens Lehmann},
url = {http://ceur-ws.org/Vol-2611/paper2.pdf},
year = {2020},
date = {2020-01-01},
booktitle = {Proceedings of the 1st International Workshop on Cross-lingual Event-centric
Open Analytics co-located with the 17th Extended Semantic Web Conference
(ESWC 2020), Heraklion, Crete, Greece, June 3, 2020 (online event
due to COVID-19 outbreak)},
volume = {2611},
pages = {17--31},
publisher = {CEUR-WS.org},
series = {CEUR Workshop Proceedings},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Graux, Damien; Sejdiu, Gezim; Stadler, Claus; Napolitano, Giulio; Lehmann, Jens
MINDS: A Translator to Embed Mathematical Expressions Inside SPARQL
Queries Inproceedings
In: Semantic Systems. In the Era of Knowledge Graphs - 16th International
Conference on Semantic Systems, SEMANTiCS 2020, Amsterdam, The Netherlands,
September 7-10, 2020, Proceedings, pp. 104–117, Springer, 2020.
@inproceedings{DBLP:conf/i-semantics/GrauxSSN020,
title = {MINDS: A Translator to Embed Mathematical Expressions Inside SPARQL
Queries},
author = {Damien Graux and
Gezim Sejdiu and
Claus Stadler and
Giulio Napolitano and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-59833-4_7},
doi = {10.1007/978-3-030-59833-4_7},
year = {2020},
date = {2020-01-01},
booktitle = {Semantic Systems. In the Era of Knowledge Graphs - 16th International
Conference on Semantic Systems, SEMANTiCS 2020, Amsterdam, The Netherlands,
September 7-10, 2020, Proceedings},
volume = {12378},
pages = {104--117},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Musyaffa, Fathoni A.; Lehmann, Jens; Jabeen, Hajira
Cross-administration comparative analysis of open fiscal data Inproceedings
In: ICEGOV 2020: 13th International Conference on Theory and Practice
of Electronic Governance, Athens, Greece, 23-25 September, 2020, pp. 459–468, ACM, 2020.
@inproceedings{DBLP:conf/icegov/Musyaffa0J20,
title = {Cross-administration comparative analysis of open fiscal data},
author = {Fathoni A. Musyaffa and
Jens Lehmann and
Hajira Jabeen},
url = {https://doi.org/10.1145/3428502.3428573},
doi = {10.1145/3428502.3428573},
year = {2020},
date = {2020-01-01},
booktitle = {ICEGOV 2020: 13th International Conference on Theory and Practice
of Electronic Governance, Athens, Greece, 23-25 September, 2020},
pages = {459--468},
publisher = {ACM},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Payrosangari, Samin; Sadeghi, Afshin; Graux, Damien; Lehmann, Jens
Meta-hyperband: Hyperparameter Optimization with Meta-learning and
Coarse-to-Fine Inproceedings
In: Intelligent Data Engineering and Automated Learning - IDEAL 2020
- 21st International Conference, Guimaraes, Portugal, November 4-6,
2020, Proceedings, Part II, pp. 335–347, Springer, 2020.
@inproceedings{DBLP:conf/ideal/PayrosangariSG020,
title = {Meta-hyperband: Hyperparameter Optimization with Meta-learning and
Coarse-to-Fine},
author = {Samin Payrosangari and
Afshin Sadeghi and
Damien Graux and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-62365-4_32},
doi = {10.1007/978-3-030-62365-4_32},
year = {2020},
date = {2020-01-01},
booktitle = {Intelligent Data Engineering and Automated Learning - IDEAL 2020
- 21st International Conference, Guimaraes, Portugal, November 4-6,
2020, Proceedings, Part II},
volume = {12490},
pages = {335--347},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Nayyeri, Mojtaba; Zhou, Xiaotian; Vahdati, Sahar; Izanloo, Reza; Yazdi, Hamed Shariat; Lehmann, Jens
Let the Margin SlidE for Knowledge Graph Embeddings via a Correntropy Objective Function Inproceedings
In: 2020 International Joint Conference on Neural Networks, IJCNN 2020,
Glasgow, United Kingdom, July 19-24, 2020, pp. 1–9, IEEE, 2020.
@inproceedings{DBLP:conf/ijcnn/NayyeriZVIY020,
title = {Let the Margin SlidE for Knowledge Graph Embeddings via a Correntropy Objective Function},
author = {Mojtaba Nayyeri and
Xiaotian Zhou and
Sahar Vahdati and
Reza Izanloo and
Hamed Shariat Yazdi and
Jens Lehmann},
url = {https://doi.org/10.1109/IJCNN48605.2020.9207513},
doi = {10.1109/IJCNN48605.2020.9207513},
year = {2020},
date = {2020-01-01},
booktitle = {2020 International Joint Conference on Neural Networks, IJCNN 2020,
Glasgow, United Kingdom, July 19-24, 2020},
pages = {1--9},
publisher = {IEEE},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Nayyeri, Mojtaba; Xu, Chengjin; Vahdati, Sahar; Vassilyeva, Nadezhda; Sallinger, Emanuel; Yazdi, Hamed Shariat; Lehmann, Jens
Fantastic Knowledge Graph Embeddings and How to Find the Right Space
for Them Inproceedings
In: The Semantic Web - ISWC 2020 - 19th International Semantic Web Conference,
Athens, Greece, November 2-6, 2020, Proceedings, Part I, pp. 438–455, Springer, 2020.
@inproceedings{DBLP:conf/semweb/NayyeriXVVSYL20,
title = {Fantastic Knowledge Graph Embeddings and How to Find the Right Space
for Them},
author = {Mojtaba Nayyeri and
Chengjin Xu and
Sahar Vahdati and
Nadezhda Vassilyeva and
Emanuel Sallinger and
Hamed Shariat Yazdi and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-62419-4_25},
doi = {10.1007/978-3-030-62419-4_25},
year = {2020},
date = {2020-01-01},
booktitle = {The Semantic Web - ISWC 2020 - 19th International Semantic Web Conference,
Athens, Greece, November 2-6, 2020, Proceedings, Part I},
volume = {12506},
pages = {438--455},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Rose, Jewgeni; Lehmann, Jens
CASQAD - A New Dataset for Context-Aware Spatial Question Answering Inproceedings
In: The Semantic Web - ISWC 2020 - 19th International Semantic Web Conference,
Athens, Greece, November 2-6, 2020, Proceedings, Part II, pp. 3–17, Springer, 2020.
@inproceedings{DBLP:conf/semweb/RoseL20,
title = {CASQAD - A New Dataset for Context-Aware Spatial Question Answering},
author = {Jewgeni Rose and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-62466-8_1},
doi = {10.1007/978-3-030-62466-8_1},
year = {2020},
date = {2020-01-01},
booktitle = {The Semantic Web - ISWC 2020 - 19th International Semantic Web Conference,
Athens, Greece, November 2-6, 2020, Proceedings, Part II},
volume = {12507},
pages = {3--17},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Xu, Chenjin; Nayyeri, Mojtaba; Alkhoury, Fouad; Yazdi, Hamed Shariat; Lehmann, Jens
Temporal Knowledge Graph Completion Based on Time Series Gaussian
Embedding Inproceedings
In: The Semantic Web - ISWC 2020 - 19th International Semantic Web Conference,
Athens, Greece, November 2-6, 2020, Proceedings, Part I, pp. 654–671, Springer, 2020.
@inproceedings{DBLP:conf/semweb/XuNAYL20,
title = {Temporal Knowledge Graph Completion Based on Time Series Gaussian
Embedding},
author = {Chenjin Xu and
Mojtaba Nayyeri and
Fouad Alkhoury and
Hamed Shariat Yazdi and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-62419-4_37},
doi = {10.1007/978-3-030-62419-4_37},
year = {2020},
date = {2020-01-01},
booktitle = {The Semantic Web - ISWC 2020 - 19th International Semantic Web Conference,
Athens, Greece, November 2-6, 2020, Proceedings, Part I},
volume = {12506},
pages = {654--671},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
Mohamed, Heba; Fathalla, Said; Lehmann, Jens; Jabeen, Hajira
A Distributed Approach for Parsing Large-scale OWL Datasets Inproceedings
In: Proceedings of the 12th International Joint Conference on Knowledge
Discovery, Knowledge Engineering and Knowledge Management, IC3K
2020, Volume 2: KEOD, Budapest, Hungary, November 2-4, 2020, pp. 227–234, SCITEPRESS, 2020.
@inproceedings{DBLP:conf/ic3k/MohamedF0J20,
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Said Fathalla and
Jens Lehmann and
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Say, Aysegul; Fathalla, Said; Vahdati, Sahar; Lehmann, Jens; Auer, Sören
Semantic Representation of Physics Research Data Inproceedings
In: Proceedings of the 12th International Joint Conference on Knowledge
Discovery, Knowledge Engineering and Knowledge Management, IC3K
2020, Volume 2: KEOD, Budapest, Hungary, November 2-4, 2020, pp. 64–75, SCITEPRESS, 2020.
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Nayyeri, Mojtaba; Alam, Mirza Mohtashim; Lehmann, Jens; Vahdati, Sahar
3D Learning and Reasoning in Link Prediction Over Knowledge Graphs Journal Article
In: IEEE Access, 8 , pp. 196459–196471, 2020.
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Nedelchev, Rostislav; Lehmann, Jens; Usbeck, Ricardo
Language Model Transformers as Evaluators for Open-domain Dialogues Inproceedings
In: Proceedings of the 28th International Conference on Computational
Linguistics, COLING 2020, Barcelona, Spain (Online), December 8-13,
2020, pp. 6797–6808, International Committee on Computational Linguistics, 2020.
@inproceedings{DBLP:conf/coling/NedelchevLU20,
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Galkin, Mikhail; Trivedi, Priyansh; Maheshwari, Gaurav; Usbeck, Ricardo; Lehmann, Jens
Message Passing for Hyper-Relational Knowledge Graphs Inproceedings
In: Proceedings of the 2020 Conference on Empirical Methods in Natural
Language Processing, EMNLP 2020, Online, November 16-20, 2020, pp. 7346–7359, Association for Computational Linguistics, 2020.
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2019
Kassawat, Firas; Chaudhuri, Debanjan; Lehmann, Jens
Incorporating Joint Embeddings into Goal-Oriented Dialogues with Multi-task Learning Inproceedings
In: The Semantic Web, pp. 225–239, Springer International Publishing, Cham, 2019, ISBN: 978-3-030-21348-0.
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Dadwal, Rajjat; Graux, Damien; Sejdiu, Gezim; Jabeen, Hajira; Lehmann, Jens
Clustering Pipelines of large RDF POI Data Inproceedings
In: Proceedings of 16th Extended Semantic Web Conference (ESWC 2019), Poster & Demos, 2019.
@inproceedings{piping-clustering-eswc19-poster,
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Sejdiu, Gezim; Rula, Anisa; Lehmann, Jens; Jabeen, Hajira
A Scalable Framework for Quality Assessment of RDF Datasets Inproceedings
In: Proceedings of 18th International Semantic Web Conference, 2019.
@inproceedings{sejdiu-2019-sansa-dist-quality-assessment-iswc,
title = {A Scalable Framework for Quality Assessment of RDF Datasets},
author = {Gezim Sejdiu and Anisa Rula and Jens Lehmann and Hajira Jabeen},
url = {http://jens-lehmann.org/files/2019/iswc_dist_quality_assessment.pdf},
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Sejdiu, Gezim; Graux, Damien; Khan, Imran; Lytra, Ioanna; Jabeen, Hajira; Lehmann, Jens
Towards a Scalable Semantic-Based Distributed Approach for SPARQL
Query Evaluation Inproceedings
In: Semantic Systems. The Power of AI and Knowledge Graphs - 15th International
Conference, SEMANTiCS 2019, Karlsruhe, Germany, September 9-12, 2019,
Proceedings, pp. 295–309, Springer, 2019.
@inproceedings{DBLP:conf/i-semantics/SejdiuGKLJ019,
title = {Towards a Scalable Semantic-Based Distributed Approach for SPARQL
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author = {Gezim Sejdiu and
Damien Graux and
Imran Khan and
Ioanna Lytra and
Hajira Jabeen and
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Abdelkawi, Abdelrahman; Zafar, Hamid; Maleshkova, Maria; Lehmann, Jens
Complex Query Augmentation for Question Answering over Knowledge Graphs Inproceedings
In: On the Move to Meaningful Internet Systems: OTM 2019 Conferences
- Confederated International Conferences: CoopIS, ODBASE, C&TC
2019, Rhodes, Greece, October 21-25, 2019, Proceedings, pp. 571–587, Springer, 2019.
@inproceedings{DBLP:conf/otm/AbdelkawiZM019,
title = {Complex Query Augmentation for Question Answering over Knowledge Graphs},
author = {Abdelrahman Abdelkawi and
Hamid Zafar and
Maria Maleshkova and
Jens Lehmann},
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Stadler, Claus; Sejdiu, Gezim; Graux, Damien; Lehmann, Jens
Querying Large-scale RDF Datasets Using the SANSA Framework 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. 285–288, CEUR-WS.org, 2019.
@inproceedings{DBLP:conf/semweb/StadlerSG019,
title = {Querying Large-scale RDF Datasets Using the SANSA Framework},
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Stadler, Claus; Sejdiu, Gezim; Graux, Damien; Lehmann, Jens
Sparklify: A Scalable Software Component for Efficient Evaluation
of SPARQL Queries over Distributed RDF Datasets Inproceedings
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference,
Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II, pp. 293–308, Springer, 2019.
@inproceedings{DBLP:conf/semweb/StadlerSG019a,
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Garcia, Lu'is Paulo F.; Lehmann, Jens; de Carvalho, André C. P. L. F.; Lorena, Ana Carolina
New label noise injection methods for the evaluation of noise filters Journal Article
In: Knowl. Based Syst., 163 , pp. 693–704, 2019.
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Athanasiou, Spiros; Giannopoulos, Giorgos; Graux, Damien; Karagiannakis, Nikos; Lehmann, Jens; Ngomo, Axel-Cyrille Ngonga; Patroumpas, Kostas; Sherif, Mohamed Ahmed; Skoutas, Dimitrios
Big POI data integration with Linked Data technologies Inproceedings
In: Advances in Database Technology - 22nd International Conference on
Extending Database Technology, EDBT 2019, Lisbon, Portugal, March
26-29, 2019, pp. 477–488, OpenProceedings.org, 2019.
@inproceedings{DBLP:conf/edbt/AthanasiouGGK0N19,
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author = {Spiros Athanasiou and
Giorgos Giannopoulos and
Damien Graux and
Nikos Karagiannakis and
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Rahimbayli, Sattar; Lehmann, Jens; Deserno, Thomas M.
Pay for Performance in Electronic Data Capture for Clinical Trials
and Medical Registries Inproceedings
In: ICT for Health Science Research - Proceedings of the EFMI 2019
Special Topic Conference - 7-10 April 2019, Hanover, Germany, pp. 221–225, IOS Press, 2019.
@inproceedings{DBLP:conf/efmi-stc/RahimbayliLD19,
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author = {Sattar Rahimbayli and
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Thomas M. Deserno},
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Chawla, Piyush; Esteves, Diego; Pujar, Karthik; Lehmann, Jens
SimpleLSTM: A Deep-Learning Approach to Simple-Claims Classification Inproceedings
In: Progress in Artificial Intelligence, 19th EPIA Conference on Artificial
Intelligence, EPIA 2019, Vila Real, Portugal, September 3-6, 2019,
Proceedings, Part II, pp. 244–255, Springer, 2019.
@inproceedings{DBLP:conf/epia/ChawlaEP019,
title = {SimpleLSTM: A Deep-Learning Approach to Simple-Claims Classification},
author = {Piyush Chawla and
Diego Esteves and
Karthik Pujar and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-30244-3_21},
doi = {10.1007/978-3-030-30244-3_21},
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date = {2019-01-01},
booktitle = {Progress in Artificial Intelligence, 19th EPIA Conference on Artificial
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pages = {244--255},
publisher = {Springer},
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Dadwal, Rajjat; Graux, Damien; Sejdiu, Gezim; Jabeen, Hajira; Lehmann, Jens
Clustering Pipelines of Large RDF POI Data Inproceedings
In: The Semantic Web: ESWC 2019 Satellite Events - ESWC 2019 Satellite
Events, Portorov z, Slovenia, June 2-6, 2019, Revised Selected
Papers, pp. 24–27, Springer, 2019.
@inproceedings{DBLP:conf/esws/DadwalGSJ019,
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Ibrahim, Shimaa; Fathalla, Said; Yazdi, Hamed Shariat; Lehmann, Jens; Jabeen, Hajira
OECM: A Cross-Lingual Approach for Ontology Enrichment Inproceedings
In: The Semantic Web: ESWC 2019 Satellite Events - ESWC 2019 Satellite
Events, Portorov z, Slovenia, June 2-6, 2019, Revised Selected
Papers, pp. 100–104, Springer, 2019.
@inproceedings{DBLP:conf/esws/IbrahimFY0J19,
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Jabeen, Hajira; Tahara, Nargis; Lehmann, Jens
EvoChef: Show Me What to Cook! Artificial Evolution of Culinary Arts Inproceedings
In: Computational Intelligence in Music, Sound, Art and Design - 8th International
Conference, EvoMUSART 2019, Held as Part of EvoStar 2019, Leipzig,
Germany, April 24-26, 2019, Proceedings, pp. 156–172, Springer, 2019.
@inproceedings{DBLP:conf/evoW/JabeenTL19,
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author = {Hajira Jabeen and
Nargis Tahara and
Jens Lehmann},
url = {https://doi.org/10.1007/978-3-030-16667-0_11},
doi = {10.1007/978-3-030-16667-0_11},
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date = {2019-01-01},
booktitle = {Computational Intelligence in Music, Sound, Art and Design - 8th International
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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,
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Hamed Shariat Yazdi and
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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
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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
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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
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volume = {11643},
pages = {424--435},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
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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
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December 2-4, 2019},
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publisher = {ACM},
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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}
}
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