You can find a list of completed Phd theses here.
2022
Enriching Text-Based Human-Machine Interactions with Additional World Knowledge PhD Thesis
Rheinische Friedrich-Wilhelms-Universität Bonn, 2022.
Semantic Digital Twins in the Industrial Internet of Things PhD Thesis
Rheinische Friedrich-Wilhelms-Universität Bonn, 2022.
The IDS Information Model: A Semantic Vocabulary for Sovereign Data Exchange Incollection
In: Designing Data Spaces: The Ecosystem Approach to Competitive Advantage, pp. 111–127, Springer, 2022.
RoMe: A Robust Metric for Evaluating Natural Language Generation Inproceedings
In: Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), ACL 2022, Dublin, Ireland, May 22-27, 2022, pp. 5645–5657, Association for Computational Linguistics, 2022.
SimE4KG: Distributed and Explainable Multi-Modal Semantic Similarity Estimation for Knowledge Graphs Inproceedings
In: 5th IEEE International Conference on Artificial Intelligence and Knowledge Engineering, AIKE 2022, Laguna Hills, CA, USA, September 19-21, 2022, pp. 1–8, IEEE, 2022.
Ethical and Sustainability Considerations for Knowledge Graph based Machine Learning Inproceedings
In: 5th IEEE International Conference on Artificial Intelligence and Knowledge Engineering, AIKE 2022, Laguna Hills, CA, USA, September 19-21, 2022, pp. 53–60, IEEE, 2022.
Contrastive Representation Learning for Conversational Question Answering over Knowledge Graphs Inproceedings
In: Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022, pp. 925–934, ACM, 2022.
Modeling Long-Range Travelling Times with Big Railway Data Inproceedings
In: Database Systems for Advanced Applications - 27th International Conference, DASFAA 2022, Virtual Event, April 11-14, 2022, Proceedings, Part III, pp. 443–454, Springer, 2022.
Towards Hybrid Logic-based and Embedding-based Reasoning on Financial Knowledge Graphs Inproceedings
In: Proceedings of the Workshops of the EDBT/ICDT 2022 Joint Conference, Edinburgh, UK, March 29, 2022, CEUR-WS.org, 2022.
Dihedron Algebraic Embeddings for Spatio-Temporal Knowledge Graph Completion Inproceedings
In: The Semantic Web - 19th International Conference, ESWC 2022, Hersonissos, Crete, Greece, May 29 - June 2, 2022, Proceedings, pp. 253–269, Springer, 2022.
Measuring Gender Bias in German Language Generation Inproceedings
In: 52. Jahrestagung der Gesellschaft für Informatik, INFORMATIK 2022, Informatik in den Naturwissenschaften, 26. - 30. September 2022, Hamburg, pp. 1257–1274, Gesellschaft für Informatik, Bonn, 2022.
Combining Knowledge Graphs and Language Models to Answer Questions over Tables Inproceedings
In: Proceedings of Poster and Demo Track and Workshop Track of the 18th International Conference on Semantic Systems co-located with 18th International Conference on Semantic Systems (SEMANTiCS 2022), Vienna, Austria, September 13th to 15th, 2022, CEUR-WS.org, 2022.
Empowering Well-Being Through Conversational Coaching for Active and Healthy Ageing Inproceedings
In: Participative Urban Health and Healthy Aging in the Age of AI - 19th International Conference, ICOST 2022, Paris, France, June 27-30, 2022, Proceedings, pp. 257–265, Springer, 2022.
Improving the Learnability of Machine Learning APIs by Semi-Automated API Wrapping Inproceedings
In: 44th IEEE/ACM International Conference on Software Engineering: New Ideas and Emerging Results ICSE (NIER) 2022, Pittsburgh, PA, USA, May 22-24, 2022, pp. 46–50, IEEE/ACM, 2022.
Improving Inductive Link Prediction Using Hyper-Relational Facts (Extended Abstract) Inproceedings
In: Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence, IJCAI 2022, Vienna, Austria, 23-29 July 2022, pp. 5259–5263, ijcai.org, 2022.
Climate Bot: A Machine Reading Comprehension System for Climate Change Question Answering Inproceedings
In: Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence, IJCAI 2022, Vienna, Austria, 23-29 July 2022, pp. 5249–5252, ijcai.org, 2022.
The Lifecycle of "Facts": A Survey of Social Bias in Knowledge Graphs Inproceedings
In: Proceedings of the 2nd Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 12th International Joint Conference on Natural Language Processing, AACL/IJCNLP 2022 - Volume 1: Long Papers, Online Only, November 20-23, 2022, pp. 639–652, Association for Computational Linguistics, 2022.
L5IN+: From an Analytical Platform to Optimization of Deep Inertial Odometry Inproceedings
In: WiP Proceedings of the Twelfth International Conference on Indoor Positioning and Indoor Navigation - Work-in-Progress Papers (IPIN-WiP 2022) co-located with 12th International Conference on Indoor Positioning and Indoor Navigation (IPIN 2022), Beijing, China, 5 September - 7 September, 2022, CEUR-WS.org, 2022.
SPARQL querying for validating the usage of automatically georeferenced social media data as human sensors for air quality Inproceedings
In: 14th IEEE Image, Video, and Multidimensional Signal Processing Workshop, IVMSP 2022, Nafplio, Greece, June 26-29, 2022, pp. 1–5, IEEE, 2022.
Ultrahyperbolic Knowledge Graph Embeddings Inproceedings
In: KDD '22: The 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Washington, DC, USA, August 14 - 18, 2022, pp. 2130–2139, ACM, 2022.
Knowledge Graph Question Answering Leaderboard: A Community Resource to Prevent a Replication Crisis Inproceedings
In: Proceedings of the Thirteenth Language Resources and Evaluation Conference, LREC 2022, Marseille, France, 20-25 June 2022, pp. 2998–3007, European Language Resources Association, 2022.
DialoKG: Knowledge-Structure Aware Task-Oriented Dialogue Generation Inproceedings
In: Findings of the Association for Computational Linguistics: NAACL 2022, Seattle, WA, United States, July 10-15, 2022, pp. 2557–2571, Association for Computational Linguistics, 2022.
Eliciting and Curating Procedural Knowledge in Industry: Challenges and Opportunities Inproceedings
In: Proceedings of the Third Conference on Digital Curation Technologies (Qurator 2022), Berlin, Germany, Sept. 19th-23rd, 2022, CEUR-WS.org, 2022.
Leveraging Contextual Graphs for Stochastic Weight Completion in Sparse Road Networks Inproceedings
In: Proceedings of the 2022 SIAM International Conference on Data Mining, SDM 2022, Alexandria, VA, USA, April 28-30, 2022, pp. 64–72, SIAM, 2022.
A Multi-Perspective Data Model for Cyber Physical Production Networks Inproceedings
In: Proceedings of the 30th Italian Symposium on Advanced Database Systems, SEBD 2022, Tirrenia (PI), Italy, June 19-22, 2022, pp. 44–51, CEUR-WS.org, 2022.
DistAD: A Distributed Generic Anomaly Detection Framework over Large KGs Inproceedings
In: 16th IEEE International Conference on Semantic Computing, ICSC 2022, Laguna Hills, CA, USA, January 26-28, 2022, pp. 243–250, IEEE, 2022.
QALD-9-plus: A Multilingual Dataset for Question Answering over DBpedia and Wikidata Translated by Native Speakers Inproceedings
In: 16th IEEE International Conference on Semantic Computing, ICSC 2022, Laguna Hills, CA, USA, January 26-28, 2022, pp. 229–234, IEEE, 2022.
In: The Semantic Web - ISWC 2022 - 21st International Semantic Web Conference, Virtual Event, October 23-27, 2022, Proceedings, pp. 22–38, Springer, 2022.
Modern Baselines for SPARQL Semantic Parsing Inproceedings
In: SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022, pp. 2260–2265, ACM, 2022.
Knowledge Graph Question Answering Datasets and Their Generalizability: Are They Enough for Future Research? Inproceedings
In: SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022, pp. 3209–3218, ACM, 2022.
A Distributed Registry of Multi-perspective Data Services in Cyber Physical Production Networks Inproceedings
In: Proceedings of the 18th International Conference on Web Information Systems and Technologies, WEBIST 2022, Valletta, Malta, October 25-27, 2022, pp. 174–181, SCITEPRESS, 2022.
Time-aware Entity Alignment using Temporal Relational Attention Inproceedings
In: WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022, pp. 788–797, ACM, 2022.
Language Model Guided Knowledge Graph Embeddings Journal Article
In: IEEE Access, vol. 10, pp. 76008–76020, 2022.
Tree-KGQA: An Unsupervised Approach for Question Answering Over Knowledge Graphs Journal Article
In: IEEE Access, vol. 10, pp. 50467–50478, 2022.
SGPT: A Generative Approach for SPARQL Query Generation From Natural Language Questions Journal Article
In: IEEE Access, vol. 10, pp. 70712–70723, 2022.
Multi-perspective Data Modelling in Cyber Physical Production Networks: Data, Services and Actors Journal Article
In: Data Sci. Eng., vol. 7, no. 3, pp. 193–212, 2022.
Spatial concept learning and inference on geospatial polygon data Journal Article
In: Knowl. Based Syst., vol. 241, pp. 108233, 2022.
Bringing Light Into the Dark: A Large-Scale Evaluation of Knowledge Graph Embedding Models Under a Unified Framework Journal Article
In: IEEE Trans. Pattern Anal. Mach. Intell., vol. 44, no. 12, pp. 8825–8845, 2022.
DeepTEA: Effective and Efficient Online Time-dependent Trajectory Outlier Detection Journal Article
In: Proc. VLDB Endow., vol. 15, no. 7, pp. 1493–1505, 2022.
Survey on English Entity Linking on Wikidata: Datasets and approaches Journal Article
In: Semantic Web, vol. 13, no. 6, pp. 925–966, 2022.
A framework for differentially-private knowledge graph embeddings Journal Article
In: J. Web Semant., vol. 72, pp. 100696, 2022.
Deep Learning Methods for Semantic Parsing and Question Answering over Knowledge Graphs PhD Thesis
University of Bonn, 2022.
2021
Knowledge Extraction Methods for the Analysis of Contractual Agreements PhD Thesis
Rheinische Friedrich-Wilhelms-Universität Bonn, 2021.
Comparative Analysis of Open Linked Fiscal Data PhD Thesis
Rheinische Friedrich-Wilhelms-Universität Bonn, 2021.
Towards Facilitating Scholarly Communication using Semantic Technologies PhD Thesis
Rheinische Friedrich-Wilhelms-Universität Bonn, 2021.
Towards Complex Question Answering over Knowledge Graphs PhD Thesis
University of Bonn, Germany, 2021.
5* 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.
Link Prediction of Weighted Triples for Knowledge Graph Completion Within the Scholarly Domain Journal Article
In: IEEE Access, vol. 9, pp. 116002–116014, 2021.
Knowledge Graphs Journal Article
In: ACM Comput. Surv., vol. 54, no. 4, pp. 71:1–71:37, 2021.
5* 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.