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377 Publications
2024 | Conference Paper | LibreCat-ID: 54084
Karalis, Nikolaos, Alexander Bigerl, Liss Heidrich, Mohamed Sherif, and Axel-Cyrille Ngonga Ngomo. “Efficient Evaluation of Conjunctive Regular Path Queries Using Multi-Way Joins.” In ESWC, 2024.
LibreCat
2023 | Research Data | LibreCat-ID: 45560
Ali, Manzoor, Muhammad Saleem, Diego Moussallem, Mohamed Sherif, and Axel-Cyrille Ngonga Ngomo. RELD: A Knowledge Graph of Relation Extraction Datasets. LibreCat University, 2023. https://doi.org/10.5281/ZENODO.7429677.
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2023 | Conference Paper | LibreCat-ID: 33734 | 
KOUAGOU, N’Dah Jean, Stefan Heindorf, Caglar Demir, and Axel-Cyrille Ngonga Ngomo. “Neural Class Expression Synthesis.” In The Semantic Web - 20th Extended Semantic Web Conference (ESWC 2023), edited by Catia Pesquita, Ernesto Jimenez-Ruiz, Jamie McCusker, Daniel Faria, Mauro Dragoni, Anastasia Dimou, Raphael Troncy, and Sven Hertling, 13870:209–26. Springer International Publishing, 2023. https://doi.org/10.1007/978-3-031-33455-9_13.
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2023 | Preprint | LibreCat-ID: 37937
Sieger, Leonie Nora, Stefan Heindorf, Lukas Blübaum, and Axel-Cyrille Ngonga Ngomo. “Counterfactual Explanations for Concepts in ELH.” ArXiv:2301.05109, 2023.
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| arXiv
2023 | Book Chapter | LibreCat-ID: 45884 |
Hanselle, Jonas Manuel, Eyke Hüllermeier, Felix Mohr, Axel-Cyrille Ngonga Ngomo, Mohamed Sherif, Alexander Tornede, and Marcel Dominik Wever. “Configuration and Evaluation.” In On-The-Fly Computing -- Individualized IT-Services in Dynamic Markets, edited by Claus-Jochen Haake, Friedhelm Meyer auf der Heide, Marco Platzner, Henning Wachsmuth, and Heike Wehrheim, 412:85–104. Verlagsschriftenreihe Des Heinz Nixdorf Instituts. Paderborn: Heinz Nixdorf Institut, Universität Paderborn, 2023. https://doi.org/10.5281/zenodo.8068466.
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2023 | Conference Paper | LibreCat-ID: 46514
Becker, Alexander, Abdullah Fathi Ahmed Ahmed, Mohamed Sherif, and Axel-Cyrille Ngonga Ngomo. “COBALT: A Content-Based Similarity Approach for Link Discovery over Geospatial Knowledge Graphs.” In SEMANTiCS, 2023.
LibreCat
2023 | Book Chapter | LibreCat-ID: 46516
Ahmed, Abdullah Fathi Ahmed, Asep Fajar Firmansyah, Mohamed Sherif, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “Explainable Integration of Knowledge Graphs Using Large Language Models.” In Natural Language Processing and Information Systems. Cham: Springer Nature Switzerland, 2023. https://doi.org/10.1007/978-3-031-35320-8_9.
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2023 | Conference Paper | LibreCat-ID: 46518
Zahera, Hamada Mohamed Abdelsamee, Fedor Vitiugin, Mohamed Sherif, Carlos Castillo, and Axel-Cyrille Ngonga Ngomo. “Using Pre-Trained Language Models for Abstractive DBpedia Summarization: A Comparative Study.” In SEMANTiCS, 2023.
LibreCat
2023 | Research Data | LibreCat-ID: 45558
Sherif, Mohamed, Ana Alexandra Morim da Silva, Svetlana Pestryakova, Abdullah Fathi Ahmed Ahmed, Sven Niemann, and Axel-Cyrille Ngonga Ngomo. IngridKG: A FAIR Knowledge Graph of Graffiti. LibreCat University, 2023. https://doi.org/10.5281/ZENODO.7560242.
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2023 | Book Chapter | LibreCat-ID: 47421
Kouagou, N’Dah Jean, Stefan Heindorf, Caglar Demir, and Axel-Cyrille Ngonga Ngomo. “Neural Class Expression Synthesis in ALCHIQ(D).” In Machine Learning and Knowledge Discovery in Databases: Research Track. Cham: Springer Nature Switzerland, 2023. https://doi.org/10.1007/978-3-031-43421-1_12.
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2023 | Book Chapter | LibreCat-ID: 46460
Ngonga Ngomo, Axel-Cyrille, Caglar Demir, N’Dah Jean Kouagou, Stefan Heindorf, Nikoloas Karalis, and Alexander Bigerl. “Class Expression Learning with Multiple Representations.” In Compendium of Neurosymbolic Artificial Intelligence, 272–286. IOS Press, 2023.
LibreCat
2023 | Journal Article | LibreCat-ID: 46248 |
Demir, Caglar, Michel Wiebesiek, Renzhong Lu, Axel-Cyrille Ngonga Ngomo, and Stefan Heindorf. “LitCQD: Multi-Hop Reasoning in Incomplete Knowledge Graphs with Numeric Literals.” ECML PKDD, 2023.
LibreCat
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2023 | Conference Paper | LibreCat-ID: 50797
Röder, Michael, Denis Kuchelev, and Axel-Cyrille Ngonga Ngomo. “A Topic Model for the Data Web.” In Knowledge Graphs and Semantic Web, edited by Fernando Ortiz-Rodriguez, Boris Villazón-Terrazas, Sanju Tiwari, and Carlos Bobed, 183–198. Cham: Springer Nature Switzerland, 2023. https://doi.org/10.1007/978-3-031-47745-4_14.
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2022 | Conference Paper | LibreCat-ID: 31806
Dreßler, Kevin, Mohamed Sherif, and Axel-Cyrille Ngonga Ngomo. “ADAGIO - Automated Data Augmentation of Knowledge Graphs Using Multi-Expression Learning.” In Proceedings of the 33rd ACM Conference on Hypertext and Hypermedia, 2022. https://doi.org/10.1145/3511095.3531287.
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2022 | Preprint | LibreCat-ID: 31545 |
Demir, Caglar, Julian Lienen, and Axel-Cyrille Ngonga Ngomo. “Kronecker Decomposition for Knowledge Graph Embeddings.” ArXiv:2205.06560, 2022.
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2022 | Conference Paper | LibreCat-ID: 29290 |
Heindorf, Stefan, Lukas Blübaum, Nick Düsterhus, Till Werner, Varun Nandkumar Golani, Caglar Demir, and Axel-Cyrille Ngonga Ngomo. “EvoLearner: Learning Description Logics with Evolutionary Algorithms.” In WWW, 818–28. ACM, 2022.
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2022 | Conference Paper | LibreCat-ID: 35541
Zahera, Hamada M., Daniel Vollmers, Mohamed Ahmed Sherif, and Axel-Cyrille 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, edited by Ulrike Sattler, Aidan Hogan, C. Maria Keet, Valentina Presutti, João Paulo A. Almeida, Hideaki Takeda, Pierre Monnin, Giuseppe Pirrò, and Claudia d’Amato, 13489:303–318. Lecture Notes in Computer Science. Springer, 2022. https://doi.org/10.1007/978-3-031-19433-7_18.
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2022 | Conference Paper | LibreCat-ID: 35540
Perevalov, Aleksandr, Andreas Both, Dennis Diefenbach, and Axel-Cyrille 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, edited by Frédérique Laforest, Raphaël Troncy, Elena Simperl, Deepak Agarwal, Aristides Gionis, Ivan Herman, and Lionel Médini, 977–986. ACM, 2022. https://doi.org/10.1145/3485447.3511940.
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2022 | Conference (Editor) | LibreCat-ID: 35538
Saleem, Muhammad, Axel-Cyrille 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 Workshop Proceedings. CEUR-WS.org, 2022.
LibreCat
2022 | Conference Paper | LibreCat-ID: 35544
Bigerl, Alexander, Lixi Conrads, Charlotte Behning, Muhammad Saleem, and Axel-Cyrille 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, edited by Ulrike Sattler, Aidan Hogan, C. Maria Keet, Valentina Presutti, João Paulo A. Almeida, Hideaki Takeda, Pierre Monnin, Giuseppe Pirrò, and Claudia d’Amato, 13489:57–73. Lecture Notes in Computer Science. Springer, 2022. https://doi.org/10.1007/978-3-031-19433-7_4.
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