Principal Scientist
Amazon Alexa AI
Principal Investigator ScaDS.AI, TU Dresden
Member of Institute for Applied Informatics, Dresden / Leipzig
Profiles: LinkedIn, Google Scholar, DBLP, Web-ID
Office
Amazon Office: Großenhainer Str. 5a, 01097 Dresden
InfAI: Schnorrstraße 70, 01069 Dresden
Short CV
Jens Lehmann (http://www.jens-lehmann.org) works full time as a principal scientist at Amazon Alexa AI. He also leads the „Smart Data Analytics“ research group with his affiliated senior researchers at InfAI and TU Dresden as well as his PhD students. Previously, he was a lead scientist for Conversational AI and Knowledge Graphs at Fraunhofer IAIS and a full professor (W3) at the University of Bonn. His research interests involve Semantic Web, machine learning, question answering & dialogue systems, distributed computing and knowledge representation. Please see his website for more details.
Research Interests
- Machine Learning
- Semantic Web & Knowledge Graphs
- Conversational AI
Publications
2019
Pay for Performance in Electronic Data Capture for Clinical Trials and Medical Registries Proceedings Article
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.
SimpleLSTM: A Deep-Learning Approach to Simple-Claims Classification Proceedings Article
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.
OECM: A Cross-Lingual Approach for Ontology Enrichment Proceedings Article
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.
Incorporating Joint Embeddings into Goal-Oriented Dialogues with Multi-task Learning Proceedings Article
In: The Semantic Web - 16th International Conference, ESWC 2019, Portorov z, Slovenia, June 2-6, 2019, Proceedings, pp. 225–239, Springer, 2019.
EvoChef: Show Me What to Cook! Artificial Evolution of Culinary Arts Proceedings Article
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.
From Monolingual to Multilingual Ontologies: The Role of Cross-Lingual Ontology Enrichment Proceedings Article
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.
The Hubs and Authorities Transaction Network Analysis using the SANSA framework Proceedings Article
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.
Scalable Distributed Genetic Algorithm Using Apache Spark (S-GA) Proceedings Article
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.
Uniform Access to Multiform Data Lakes using Semantic Technologies Proceedings Article
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.
Old is Gold: Linguistic Driven Approach for Entity and Relation Linking of Short Text Proceedings Article
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.
Improving Access to Science for Social Good Proceedings Article
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.
Linking Physicians to Medical Research Results via Knowledge Graph Embeddings and Twitter Proceedings Article
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.
Predicting Missing Links Using PyKEEN Proceedings Article
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.
The KEEN Universe - An Ecosystem for Knowledge Graph Embeddings with a Focus on Reproducibility and Transferability Proceedings Article
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference, Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II, pp. 3–18, Springer, 2019.
Using a KG-Copy Network for Non-goal Oriented Dialogues Proceedings Article
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.
LC-QĂD 2.0: A Large Dataset for Complex Question Answering over Wikidata and DBpedia Proceedings Article
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.
DBpedia FlexiFusion the Best of Wikipedia textbackslashtextgreater Wikidata textbackslashtextgreater Your Data Proceedings Article
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.
Incorporating Literals into Knowledge Graph Embeddings Proceedings Article
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.
Pretrained Transformers for Simple Question Answering over Knowledge Graphs Proceedings Article
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference, Auckland, New Zealand, October 26-30, 2019, Proceedings, Part I, pp. 470–486, Springer, 2019.
Learning to Rank Query Graphs for Complex Question Answering over Knowledge Graphs Proceedings Article
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.
How to Feed the Squerall with RDF and Other Data Nuts? Proceedings Article
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.
Squerall: Virtual Ontology-Based Access to Heterogeneous and Large Data Sources Proceedings Article
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.
Microbenchmarks for Question Answering Systems Using QaldGen Proceedings Article
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.
A Scalable Framework for Quality Assessment of RDF Datasets Proceedings Article
In: The Semantic Web - ISWC 2019 - 18th International Semantic Web Conference, Auckland, New Zealand, October 26-30, 2019, Proceedings, Part II, pp. 261–276, Springer, 2019.
QaldGen: Towards Microbenchmarking of Question Answering Systems over Knowledge Graphs Proceedings Article
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.
TISCO: Temporal Scoping of Facts Journal Article
In: J. Web Semant., vol. 54, pp. 959–960, 2019.
BioKEEN: a library for learning and evaluating biological knowledge graph embeddings Journal Article
In: Bioinform., vol. 35, no. 18, pp. 3538–3540, 2019.
How Complex Is Your Classification Problem?: A Survey on Measuring Classification Complexity Journal Article
In: ACM Comput. Surv., vol. 52, no. 5, pp. 107:1–107:34, 2019.
SML-Bench - A benchmarking framework for structured machine learning Journal Article
In: Semantic Web, vol. 10, no. 2, pp. 231–245, 2019.
2018
Divided We Stand Out! Forging Cohorts fOr Numeric Outlier Detection in Large Scale Knowledge Graphs (CONOD) Proceedings Article
In: Knowledge Engineering and Knowledge Management - 21st International Conference, EKAW 2018, Nancy, France, November 12-16, 2018, Proceedings, pp. 534–548, Springer, 2018.
Profiting from Kitties on Ethereum: Leveraging Blockchain RDF with SANSA Proceedings Article
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.
DistLODStats: Distributed Computation of RDF Dataset Statistics Proceedings Article
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.
STATisfy Me: What Are My Stats? Proceedings Article
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.
Detecting Linked Data quality issues via crowdsourcing: A DBpedia study Journal Article
In: Semantic Web, vol. 9, no. 3, pp. 303–335, 2018.
Towards Veracity Assessment in RDF Knowledge Bases: An Exploratory Analysis Journal Article
In: Journal of Data and Information Quality, 2018.
Improving Response Selection in Multi-Turn Dialogue Systems by Incorporating Domain Knowledge Proceedings Article
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.
KnIGHT: Mapping Privacy Policies to GDPR Proceedings Article
In: Knowledge Engineering and Knowledge Management - 21st International Conference, EKAW 2018, Nancy, France, November 12-16, 2018, Proceedings, pp. 258–272, Springer, 2018.
Formal Query Generation for Question Answering over Knowledge Bases Proceedings Article
In: The Semantic Web - 15th International Conference, ESWC 2018, Heraklion, Crete, Greece, June 3-7, 2018, Proceedings, pp. 714–728, Springer, 2018.
Two for one: querying property graph databases using SPARQL via gremlinator Proceedings Article
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.
SPIRIT: A Semantic Transparency and Compliance Stack Proceedings Article
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.
Efficiently Pinpointing SPARQL Query Containments Proceedings Article
In: Web Engineering - 18th International Conference, ICWE 2018, Cáceres, Spain, June 5-8, 2018, Proceedings, pp. 210–224, Springer, 2018.
A Question Answering System on Regulatory Documents Proceedings Article
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.
Deep Query Ranking for Question Answering over Knowledge Bases Proceedings Article
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.
Generating SPARQL Query Containment Benchmarks Using the SQCFramework Proceedings Article
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.
Joint Entity and Relation Linking Using EARL Proceedings Article
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.
EARL: Joint Entity and Relation Linking for Question Answering over Knowledge Graphs Proceedings Article
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.
DL-Learner Structured Machine Learning on Semantic Web Data Proceedings Article
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.
Why Reinvent the Wheel: Let's Build Question Answering Systems Together Proceedings Article
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.
Structured Knowledge on the Web 7.0 Proceedings Article
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.
Toward Veracity Assessment in RDF Knowledge Bases: An Exploratory Analysis Journal Article
In: ACM J. Data Inf. Qual., vol. 9, no. 3, pp. 16:1–16:26, 2018.