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418 Publications
2021 | Journal Article | LibreCat-ID: 25209
Demir, Caglar, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “A Shallow Neural Model for Relation Prediction.” CoRR abs/2101.09090 (2021).
LibreCat
2021 | Journal Article | LibreCat-ID: 25210
Ali, Waqas, Muhammad Saleem, Bin Yao, Aidan Hogan, and Axel-Cyrille Ngonga Ngomo. “A Survey of RDF Stores \& SPARQL Engines for Querying Knowledge Graphs.” CoRR abs/2102.13027 (2021).
LibreCat
2021 | Journal Article | LibreCat-ID: 25211
Vollmers, Daniel, Rricha Jalota, Diego Moussallem, Hardik Topiwala, Axel-Cyrille Ngonga Ngomo, and Ricardo Usbeck. “Knowledge Graph Question Answering Using Graph-Pattern Isomorphism.” CoRR abs/2103.06752 (2021).
LibreCat
2021 | Journal Article | LibreCat-ID: 25213
Sharma, Arnab, Caglar Demir, Axel-Cyrille Ngonga Ngomo, and Heike Wehrheim. “MLCheck- Property-Driven Testing of Machine Learning Models.” CoRR abs/2105.00741 (2021).
LibreCat
2021 | Journal Article | LibreCat-ID: 25214
Wilke, Adrian, and Axel-Cyrille Ngonga Ngomo. “Open Data Portal Germany (OPAL) Projektergebnisse.” CoRR abs/2105.03161 (2021).
LibreCat
2021 | Journal Article | LibreCat-ID: 25215
Demir, Caglar, and Axel-Cyrille Ngonga Ngomo. “Out-of-Vocabulary Entities in Link Prediction.” CoRR abs/2105.12524 (2021).
LibreCat
2021 | Journal Article | LibreCat-ID: 25217
Demir, Caglar, and Axel-Cyrille Ngonga Ngomo. “DRILL- Deep Reinforcement Learning for Refinement Operators in ALC.” CoRR abs/2106.15373 (2021).
LibreCat
2021 | Conference Paper | LibreCat-ID: 28350
Sharma, Arnab, Caglar Demir, Axel-Cyrille Ngonga Ngomo, and Heike Wehrheim. “MLCHECK–Property-Driven Testing of Machine Learning Classifiers.” In Proceedings of the 20th IEEE International Conference on Machine Learning and Applications (ICMLA). IEEE, n.d.
LibreCat
2021 | Journal Article | LibreCat-ID: 24719
M. Zahera, Hamada, Rricha Jalota, Mohamed Ahmed Sherif, and Axel-Cyrille Ngonga Ngomo. “I-AID: Identifying Actionable Information From Disaster-Related Tweets.” {IEEE} Access 9 (2021): 118861–70. https://doi.org/10.1109/ACCESS.2021.3107812.
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| DOI
2021 | Journal Article | LibreCat-ID: 24720
Hogan, Aidan, Eva Blomqvist, Michael Cochez, Claudia d’Amato, Gerard de Melo, Claudio Guti{\’{e}}rrez, Sabrina Kirrane, et al. “Knowledge Graphs.” {ACM} Comput. Surv. 54, no. 4 (2021): 71:1-71:37. https://doi.org/10.1145/3447772.
LibreCat
| DOI
2021 | Conference Paper | LibreCat-ID: 29486
Firmansyah, Asep Fajar, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “GATES: Using Graph Attention Networks for Entity Summarization.” In Proceedings of the 11th on Knowledge Capture Conference, 73–80. Virtual Event, USA: ACM, 2021. https://doi.org/10.1145/3460210.3493574.
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| DOI
2021 | Book Chapter | LibreCat-ID: 29292 |

Feldhans, Robert, Adrian Wilke, Stefan Heindorf, Mohammad Hossein Shaker, Barbara Hammer, Axel-Cyrille Ngonga Ngomo, and Eyke Hüllermeier. “Drift Detection in Text Data with Document Embeddings.” In Intelligent Data Engineering and Automated Learning – IDEAL 2021. Cham: Springer International Publishing, 2021. https://doi.org/10.1007/978-3-030-91608-4_11.
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2021 | Conference Paper | LibreCat-ID: 29287 |

Demir, Caglar, Diego Moussallem, Stefan Heindorf, and Axel-Cyrille Ngonga Ngomo. “Convolutional Hypercomplex Embeddings for Link Prediction.” In The 13th Asian Conference on Machine Learning, ACML 2021, 2021.
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| arXiv
2021 | Journal Article | LibreCat-ID: 24456 |

Rohlfing, Katharina J., Philipp Cimiano, Ingrid Scharlau, Tobias Matzner, Heike M. Buhl, Hendrik Buschmeier, Elena Esposito, et al. “Explanation as a Social Practice: Toward a Conceptual Framework for the Social Design of AI Systems.” IEEE Transactions on Cognitive and Developmental Systems 13, no. 3 (2021): 717–28. https://doi.org/10.1109/tcds.2020.3044366.
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| DOI
2021 | Journal Article | LibreCat-ID: 25212
Qudus, Umair, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, and Young-Koo Lee. “An Empirical Evaluation of Cost-Based Federated SPARQL Query Processing Engines.” Semantic Web 12, no. 6 (n.d.): 843–68. https://doi.org/10.3233/SW-200420.
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| DOI
2021 | Book Chapter | LibreCat-ID: 54587
Khan, Hashim, Ali Manzoor, Axel-Cyrille Ngonga Ngomo, and Muhammad Saleem. “When Is the Peak Performance Reached? An Analysis of RDF Triple Stores.” In Studies on the Semantic Web. IOS Press, 2021. https://doi.org/10.3233/ssw210042.
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| DOI
2021 | Book Chapter | LibreCat-ID: 54586
Manzoor, Ali, Muhammad Saleem, and Axel-Cyrille Ngonga Ngomo. “Unsupervised Relation Extraction Using Sentence Encoding.” In The Semantic Web: ESWC 2021 Satellite Events. Cham: Springer International Publishing, 2021. https://doi.org/10.1007/978-3-030-80418-3_25.
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| DOI
2021 | Journal Article | LibreCat-ID: 29004
Ngonga Ngomo, Axel-Cyrille, Mohamed Sherif, Kleanthi Georgala, Mofeed Hassan, Kevin Dreßler, Klaus Lyko, Daniel Obraczka, and Tommaso Soru. “LIMES - A Framework for Link Discovery on the Semantic Web.” KI - K{\"u}nstliche Intelligenz, German Journal of Artificial Intelligence - Organ Des Fachbereichs “Künstliche Intelligenz” Der Gesellschaft Für Informatik e.V., 2021. https://doi.org/10.1007/s13218-021-00713-x.
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| DOI
2021 | Conference Paper | LibreCat-ID: 29043
Zahera, Hamada Mohamed Abdelsamee, Rricha Jalota, Mohamed Sherif, and Axel-Cyrille Ngonga Ngomo. “I-AID: Identifying Actionable Information from Disaster-Related Tweets.” In IEEE Open Access, 2021.
LibreCat
2021 | Journal Article | LibreCat-ID: 29005
Fathi Ahmed, Abdullah, Mohamed Sherif, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “Multilingual Verbalization and Summarization for Explainable Link Discovery.” Data & Knowledge Engineering, 2021, 101874. https://doi.org/10.1016/j.datak.2021.101874.
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| DOI