Please note that LibreCat no longer supports Internet Explorer versions 8 or 9 (or earlier).
We recommend upgrading to the latest Internet Explorer, Google Chrome, or Firefox.
377 Publications
2024 | Conference Paper | LibreCat-ID: 54084
N. Karalis, A. Bigerl, L. Heidrich, M. Sherif, and A.-C. Ngonga Ngomo, “Efficient Evaluation of Conjunctive Regular Path Queries Using Multi-way Joins,” 2024.
LibreCat
2023 | Conference Paper | LibreCat-ID: 33734 | 
N. J. KOUAGOU, S. Heindorf, C. Demir, and A.-C. Ngonga Ngomo, “Neural Class Expression Synthesis,” in The Semantic Web - 20th Extended Semantic Web Conference (ESWC 2023), Hersonissos, Crete, Greece, 2023, vol. 13870, pp. 209–226, doi: https://doi.org/10.1007/978-3-031-33455-9_13.
LibreCat
| DOI
| Download (ext.)
2023 | Preprint | LibreCat-ID: 37937
L. N. Sieger, S. Heindorf, L. Blübaum, and A.-C. Ngonga Ngomo, “Counterfactual Explanations for Concepts in ELH,” arXiv:2301.05109. 2023.
LibreCat
| Download (ext.)
| arXiv
2023 | Book Chapter | LibreCat-ID: 45884 |
J. M. Hanselle et al., “Configuration and Evaluation,” in On-The-Fly Computing -- Individualized IT-services in dynamic markets, vol. 412, C.-J. Haake, F. Meyer auf der Heide, M. Platzner, H. Wachsmuth, and H. Wehrheim, Eds. Paderborn: Heinz Nixdorf Institut, Universität Paderborn, 2023, pp. 85–104.
LibreCat
| Files available
| DOI
2023 | Conference Paper | LibreCat-ID: 46514
A. Becker, A. F. A. Ahmed, M. Sherif, and A.-C. Ngonga Ngomo, “COBALT: A Content-Based Similarity Approach for Link Discovery over Geospatial Knowledge Graphs,” presented at the SEMANTiCS 2023, Leipzig, Germany, 2023.
LibreCat
2023 | Book Chapter | LibreCat-ID: 46516
A. F. A. Ahmed, A. F. Firmansyah, M. Sherif, D. Moussallem, and A.-C. Ngonga Ngomo, “Explainable Integration of Knowledge Graphs Using Large Language Models,” in Natural Language Processing and Information Systems, Cham: Springer Nature Switzerland, 2023.
LibreCat
| DOI
2023 | Conference Paper | LibreCat-ID: 46518
H. M. A. Zahera, F. Vitiugin, M. Sherif, C. Castillo, and A.-C. Ngonga Ngomo, “Using Pre-trained Language Models for Abstractive DBpedia Summarization: A Comparative Study,” presented at the SEMANTiCS 2023, Leipzig, Germany, 2023.
LibreCat
2023 | Book Chapter | LibreCat-ID: 46460
A.-C. Ngonga Ngomo, C. Demir, N. J. Kouagou, S. Heindorf, N. Karalis, and A. Bigerl, “Class Expression Learning with Multiple Representations,” in Compendium of Neurosymbolic Artificial Intelligence, IOS Press, 2023, pp. 272–286.
LibreCat
2023 | Journal Article | LibreCat-ID: 46248 |
C. Demir, M. Wiebesiek, R. Lu, A.-C. Ngonga Ngomo, and S. Heindorf, “LitCQD: Multi-Hop Reasoning in Incomplete Knowledge Graphs with Numeric Literals,” ECML PKDD, 2023.
LibreCat
| Files available
2023 | Conference Paper | LibreCat-ID: 50797
M. Röder, D. Kuchelev, and A.-C. Ngonga Ngomo, “A Topic Model for the Data Web,” in Knowledge Graphs and Semantic Web, 2023, pp. 183–198, doi: 10.1007/978-3-031-47745-4_14.
LibreCat
| DOI
2022 | Conference Paper | LibreCat-ID: 31806
K. Dreßler, M. Sherif, and A.-C. Ngonga Ngomo, “ADAGIO - Automated Data Augmentation of Knowledge Graphs Using Multi-expression Learning,” presented at the HT ’22: 33rd ACM Conference on Hypertext and Social Media, Barcelona (Spain), 2022, doi: 10.1145/3511095.3531287.
LibreCat
| DOI
2022 | Preprint | LibreCat-ID: 31545 |
C. Demir, J. Lienen, and A.-C. Ngonga Ngomo, “Kronecker Decomposition for Knowledge Graph Embeddings,” arXiv:2205.06560. 2022.
LibreCat
| Download (ext.)
2022 | Conference Paper | LibreCat-ID: 29290 |
S. Heindorf et al., “EvoLearner: Learning Description Logics with Evolutionary Algorithms,” in WWW, 2022, pp. 818–828.
LibreCat
| Download (ext.)
2022 | Conference Paper | LibreCat-ID: 35541
H. M. Zahera, D. Vollmers, M. A. Sherif, and A.-C. Ngonga Ngomo, “MultPAX: Keyphrase Extraction Using Language Models and Knowledge Graphs,” in The Semantic Web - ISWC 2022 - 21st International Semantic Web Conference, Virtual Event, October 23-27, 2022, Proceedings, 2022, vol. 13489, pp. 303–318, doi: 10.1007/978-3-031-19433-7_18.
LibreCat
| DOI
2022 | Conference Paper | LibreCat-ID: 35540
A. Perevalov, A. Both, D. Diefenbach, and A.-C. Ngonga Ngomo, “Can Machine Translation be a Reasonable Alternative for Multilingual Question Answering Systems over Knowledge Graphs?,” in WWW ’22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022, 2022, pp. 977–986, doi: 10.1145/3485447.3511940.
LibreCat
| DOI
2022 | Conference (Editor) | LibreCat-ID: 35538
M. Saleem, A.-C. Ngonga Ngomo, and DE, Eds., Proceedings of the QuWeDa 2022: 6th Workshop on Storing, Querying and Benchmarking Knowledge Graphs co-located with 21st International Semantic Web Conference (ISWC 2022), Hangzhou, China, 23-27 October 2022, vol. 3279. CEUR-WS.org, 2022.
LibreCat
2022 | Conference Paper | LibreCat-ID: 35544
A. Bigerl, L. Conrads, C. Behning, M. Saleem, and A.-C. Ngonga Ngomo, “Hashing the Hypertrie: Space- and Time-Efficient Indexing for SPARQL in Tensors,” in The Semantic Web - ISWC 2022 - 21st International Semantic Web Conference, Virtual Event, October 23-27, 2022, Proceedings, 2022, vol. 13489, pp. 57–73, doi: 10.1007/978-3-031-19433-7_4.
LibreCat
| DOI