You can find a list of completed Phd theses here.
2021
GeoWINE: Geolocation based Wiki, Image, News and Event Retrieval Inproceedings
In: SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021, pp. 2565–2569, ACM, 2021.
Recommending Videos in Cold Start With Automatic Visual Tags Inproceedings
In: Adjunct Publication of the 29th ACM Conference on User Modeling, Adaptation and Personalization, UMAP 2021, Utrecht, The Netherlands, June 21-25, 2021, pp. 54–60, ACM, 2021.
A Multi-perspective Model of Smart Products for Designing Web-Based Services on the Production Chain Inproceedings
In: Web Information Systems Engineering - WISE 2021 - 22nd International Conference on Web Information Systems Engineering, WISE 2021, Melbourne, VIC, Australia, October 26-29, 2021, Proceedings, Part II, pp. 447–462, Springer, 2021.
RECON: Relation Extraction using Knowledge Graph Context in a Graph Neural Network Inproceedings
In: WWW '21: The Web Conference 2021, Virtual Event / Ljubljana, Slovenia, April 19-23, 2021, pp. 1673–1685, ACM / IW3C2, 2021.
In: IEEE Access, vol. 9, pp. 116002–116014, 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.
CLEP: a hybrid data- and knowledge-driven framework for generating patient representations Journal Article
In: Bioinform., vol. 37, no. 19, pp. 3311–3318, 2021.
Geolog: Scalable Logic Programming on Spatial Data Inproceedings
In: Proceedings 37th International Conference on Logic Programming (Technical Communications), ICLP Technical Communications 2021, Porto (virtual event), 20-27th September 2021, pp. 191–204, 2021.
Knowledge Graphs Journal Article
In: ACM Comput. Surv., vol. 54, no. 4, pp. 71:1–71:37, 2021.
Trans4E: Link prediction on scholarly knowledge graphs Journal Article
In: Neurocomputing, vol. 461, pp. 530–542, 2021.
Learning Non-Taxonomic Relations of Ontologies: A Systematic Review Journal Article
In: Int. J. Semantic Web Inf. Syst., vol. 17, no. 1, pp. 97–122, 2021.
Towards holistic Entity Linking: Survey and directions Journal Article
In: Inf. Syst., vol. 95, pp. 101624, 2021.
PyKEEN 1.0: A Python Library for Training and Evaluating Knowledge Graph Embeddings Journal Article
In: J. Mach. Learn. Res., vol. 22, pp. 82:1–82:6, 2021.
LIMES: A Framework for Link Discovery on the Semantic Web Journal Article
In: Künstliche Intell., vol. 35, no. 3, pp. 413–423, 2021.
Discover Relations in the Industry 4.0 Standards Via Unsupervised Learning on Knowledge Graph Embeddings Journal Article
In: J. Data Intell., vol. 2, no. 3, pp. 326–347, 2021.
In: Scientometrics, vol. 126, no. 9, pp. 8129–8151, 2021.
A comprehensive quality assessment framework for scientific events Journal Article
In: Scientometrics, vol. 126, no. 1, pp. 641–682, 2021.
Session-based Hotel Recommendations Dataset: As part of the ACM Recommender System Challenge 2019 Journal Article
In: ACM Trans. Intell. Syst. Technol., vol. 12, no. 1, pp. 1:1–1:20, 2021.
Introduction to neural network-based question answering over knowledge graphs Journal Article
In: WIREs Data Mining Knowl. Discov., vol. 11, no. 3, 2021.
Towards the next generation of the LinkedGeoData project using virtual knowledge graphs Journal Article
In: J. Web Semant., vol. 71, pp. 100662, 2021.
Strategies for a Semantified Uniform Access to Large and Heterogeneous Data Sources PhD Thesis
University of Bonn, Germany, 2021.
Knowledge Context for Entity and Relation Linking PhD Thesis
University of Bonn, Germany, 2021.
On Supporting Interoperability between RDF and Property Graph Databases PhD Thesis
University of Bonn, Germany, 2021.
2020
An OER Recommender System Supporting Accessibility Requirements Inproceedings
In: ASSETS '20: The 22nd International ACM SIGACCESS Conference on Computers and Accessibility, Virtual Event, Greece, October 26-28, 2020, pp. 57:1–57:4, ACM, 2020.
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.
MLM: A Benchmark Dataset for Multitask Learning with Multiple Languages and Modalities Inproceedings
In: CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020, pp. 2967–2974, ACM, 2020.
SDM-RDFizer: An RML Interpreter for the Efficient Creation of RDF Knowledge Graphs Inproceedings
In: CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020, pp. 3039–3046, ACM, 2020.
Evaluating the Impact of Knowledge Graph Context on Entity Disambiguation Models Inproceedings
In: CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020, pp. 2157–2160, ACM, 2020.
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.
TeRo: A Time-aware Knowledge Graph Embedding via Temporal Rotation Inproceedings
In: Proceedings of the 28th International Conference on Computational Linguistics, COLING 2020, Barcelona, Spain (Online), December 8-13, 2020, pp. 1583–1593, International Committee on Computational Linguistics, 2020.
Knowledge Graph Embeddings in Geometric Algebras Inproceedings
In: Proceedings of the 28th International Conference on Computational Linguistics, COLING 2020, Barcelona, Spain (Online), December 8-13, 2020, pp. 530–544, International Committee on Computational Linguistics, 2020.
Unveiling Relations in the Industry 4.0 Standards Landscape Based on Knowledge Graph Embeddings Inproceedings
In: Database and Expert Systems Applications - 31st International Conference, DEXA 2020, Bratislava, Slovakia, September 14-17, 2020, Proceedings, Part II, pp. 179–194, Springer, 2020.
SCODIS: Job Advert-Derived Time Series for High-Demand Skillset Discovery and Prediction Inproceedings
In: Database and Expert Systems Applications - 31st International Conference, DEXA 2020, Bratislava, Slovakia, September 14-17, 2020, Proceedings, Part II, pp. 366–381, Springer, 2020.
The Effect of Rule Injectionin a Leakage Free Dataset Inproceedings
In: Proceedings of the International Workshop on Knowledge Representation and Representation Learning co-located with the 24th European Conference on Artificial Intelligence (ECAI 2020), Virtual Event, September, 2020, pp. 28–35, CEUR-WS.org, 2020.
Departamento de Nosotros: How Machine Translated Corpora Affects Language Models in MRC Tasks Inproceedings
In: Proceedings of the Workshop on Hybrid Intelligence for Natural Language Processing Tasks (HI4NLP 2020) co-located with 24th European Conference on Artificial Intelligence (ECAI 2020), Santiago de Compostela, Spain, August 29, 2020, pp. 29–33, CEUR-WS.org, 2020.
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.
Multiple Run Ensemble Learning with Low Dimensional Knowledge Graph Embeddings Inproceedings
In: Proceedings of the International Workshop on Knowledge Representation and Representation Learning co-located with the 24th European Conference on Artificial Intelligence (ECAI 2020), Virtual Event, September, 2020, pp. 36–42, CEUR-WS.org, 2020.
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.
Quality Evaluation of Open Educational Resources Inproceedings
In: Addressing Global Challenges and Quality Education - 15th European Conference on Technology Enhanced Learning, EC-TEL 2020, Heidelberg, Germany, September 14-18, 2020, Proceedings, pp. 410–415, Springer, 2020.
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.
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.
Affinity Dependent Negative Sampling for Knowledge Graph Embeddings Inproceedings
In: Proceedings of the Workshop on Deep Learning for Knowledge Graphs (DL4KG2020) co-located with the 17th Extended Semantic Web Conference 2020 (ESWC 2020), Heraklion, Greece, June 02, 2020 - moved online, CEUR-WS.org, 2020.
Training Multimodal Systems for Classification with Multiple Objectives 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. 57–71, CEUR-WS.org, 2020.
A Knowledge Graph for Industry 4.0 Inproceedings
In: The Semantic Web - 17th International Conference, ESWC 2020, Heraklion, Crete, Greece, May 31-June 4, 2020, Proceedings, pp. 465–480, Springer, 2020.
Towards Integrated Data Control for Digital Twins in Industry 4.0 Inproceedings
In: Proceedings of the International Workshop on Semantic Digital Twins co-located with the 17th Extended Semantic Web Conference, SeDiT@ESWC 2020, Heraklion, Greece, June 3, 2020, CEUR-WS.org, 2020.
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.
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.
Semantic Data Integration for the SMT Manufacturing Process Using SANSA Stack Inproceedings
In: The Semantic Web: ESWC 2020 Satellite Events - ESWC 2020 Satellite Events, Heraklion, Crete, Greece, May 31 - June 4, 2020, Revised Selected Papers, pp. 307–311, Springer, 2020.
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.
Visually-Aware Video Recommendation in the Cold Start Inproceedings
In: HT '20: 31st ACM Conference on Hypertext and Social Media, Virtual Event, USA, July 13-15, 2020, pp. 225–229, ACM, 2020.