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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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| DOI
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.
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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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| DOI
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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2022 | Conference Paper | LibreCat-ID: 35543
Ali, Manzoor, Muhammad Saleem, and Axel-Cyrille Ngonga Ngomo. “REBench: Microbenchmarking Framework for Relation Extraction Systems.” 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, 13489:643–659. Lecture Notes in Computer Science. Springer, 2022. https://doi.org/10.1007/978-3-031-19433-7_37.
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2022 | Conference Paper | LibreCat-ID: 35542
Demir, Caglar, Anna Himmelhuber, Yushan Liu, Alexander Bigerl, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “Rapid Explainability for Skill Description Learning.” In Proceedings of the ISWC 2022 Posters, Demos and Industry Tracks: From Novel Ideas to Industrial Practice Co-Located with 21st International Semantic Web Conference {(ISWC} 2022), Virtual Conference, Hangzhou, China, October 23-27, 2022, edited by Anastasia Dimou, Armin Haller, Anna Lisa Gentile, and Petar Ristoski, Vol. 3254. CEUR Workshop Proceedings. CEUR-WS.org, 2022.
LibreCat
2022 | Conference Paper | LibreCat-ID: 35545
Stadler, Claus, Muhammad Saleem, and Axel-Cyrille Ngonga Ngomo. “LSQ Framework: The LSQ Framework for SPARQL Query Log Processing.” In 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, edited by Muhammad Saleem and Axel-Cyrille Ngonga Ngomo, 3279:49–64. CEUR Workshop Proceedings. CEUR-WS.org, 2022.
LibreCat
2022 | Conference Paper | LibreCat-ID: 35547
Demir, Caglar, Julian Lienen, and Axel-Cyrille Ngonga Ngomo. “Kronecker Decomposition for Knowledge Graph Embeddings.” In HT ’22: 33rd ACM Conference on Hypertext and Social Media, Barcelona, Spain, 28 June 2022- 1 July 2022, edited by Alejandro Bellogín, Ludovico Boratto, and Federica Cena, 1–10. ACM, 2022. https://doi.org/10.1145/3511095.3531276.
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2022 | Journal Article | LibreCat-ID: 35551
Ali, Waqas, Muhammad Saleem, Bin Yao, Aidan Hogan, and Axel-Cyrille Ngonga Ngomo. “A Survey of RDF Stores & SPARQL Engines for Querying Knowledge Graphs.” VLDB J. 31, no. 3 (2022): 1–26. https://doi.org/10.1007/s00778-021-00711-3.
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2022 | Journal Article | LibreCat-ID: 35552
Demir, Caglar, and Axel-Cyrille Ngonga Ngomo. “Hardware-Agnostic Computation for Large-Scale Knowledge Graph Embeddings.” Softw. Impacts 13 (2022): 100377. https://doi.org/10.1016/j.simpa.2022.100377.
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2022 | Book Chapter | LibreCat-ID: 33738 |
Zahera, Hamada Mohamed Abdelsamee, Stefan Heindorf, Stefan Balke, Jonas Haupt, Martin Voigt, Carolin Walter, Fabian Witter, and Axel-Cyrille Ngonga Ngomo. “Tab2Onto: Unsupervised Semantification with Knowledge Graph Embeddings.” In The Semantic Web: ESWC 2022 Satellite Events. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-11609-4_9.
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2022 | Conference Paper | LibreCat-ID: 33739 |
Bondarenko, Alexander, Magdalena Wolska, Stefan Heindorf, Lukas Blübaum, Axel-Cyrille Ngonga Ngomo, Benno Stein, Pavel Braslavski, Matthias Hagen, and Martin Potthast. “CausalQA: A Benchmark for Causal Question Answering.” In Proceedings of the 29th International Conference on Computational Linguistics, 3296–3308. Gyeongju, Republic of Korea: International Committee on Computational Linguistics, 2022.
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2022 | Journal Article | LibreCat-ID: 29851 |
Pestryakova, Svetlana , Daniel Vollmers, Mohamed Sherif, Stefan Heindorf, Muhammad Saleem, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “CovidPubGraph: A FAIR Knowledge Graph of COVID-19 Publications.” Scientific Data, 2022.
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2022 | Conference Paper | LibreCat-ID: 46538
Zahera, Hamada Mohamed Abdelsamee, Daniel Vollmers, Mohamed Sherif, and Axel-Cyrille Ngonga Ngomo. “MultPAX: Keyphrase Extraction Using Language Models and Knowledge Graphs.” In ISWC 2022. Springer, Cham, n.d. https://doi.org/10.1007/978-3-031-19433-7_18.
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| DOI
2022 | Conference Paper | LibreCat-ID: 32509
Qudus, Umair, Michael Röder, Muhammad Saleem, and Axel-Cyrille Ngonga Ngomo. “HybridFC: A Hybrid Fact-Checking Approach for Knowledge Graphs.” In The Semantic Web -- ISWC 2022, edited by Ulrike Sattler, Aidan Hogan, Maria Keet, and Valentina Presutti, 462--480. Cham: Springer International Publishing, n.d. https://doi.org/10.1007/978-3-031-19433-7_27.
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| DOI
2022 | Book Chapter | LibreCat-ID: 33740 |
KOUAGOU, N’Dah Jean, Stefan Heindorf, Caglar Demir, and Axel-Cyrille Ngonga Ngomo. “Learning Concept Lengths Accelerates Concept Learning in ALC.” In The Semantic Web. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-06981-9_14.
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2021 | Journal Article | LibreCat-ID: 24721
Fathi Ahmed, Abdullah, Mohamed Ahmed Sherif, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “Multilingual Verbalization and Summarization for Explainable Link Discovery.” Data Knowl. Eng. 133 (2021): 101874. https://doi.org/10.1016/j.datak.2021.101874.
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2021 | Conference Paper | LibreCat-ID: 24722
Röder, Michael, Philip Frerk, Felix Conrads, and Axel-Cyrille Ngonga Ngomo. “Applying Grammar-Based Compression to RDF.” In The Semantic Web - 18th International Conference, {ESWC} 2021, Virtual Event, June 6-10, 2021, Proceedings, edited by Ruben Verborgh, Katja Hose, Heiko Paulheim, Pierre-Antoine Champin, Maria Maleshkova, Oscar Corcho, Petar Ristoski, and Mehwish Alam, 12731:93–108. Lecture Notes in Computer Science. Springer, 2021. https://doi.org/10.1007/978-3-030-77385-4\_6.
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2021 | Conference Paper | LibreCat-ID: 24723
Ali, Manzoor, Muhammad Saleem, and Axel-Cyrille Ngonga Ngomo. “Unsupervised Relation Extraction Using Sentence Encoding.” In The Semantic Web: {ESWC} 2021 Satellite Events - Virtual Event, June 6-10, 2021, Revised Selected Papers, edited by Ruben Verborgh, Anastasia Dimou, Aidan Hogan, Claudia d’Amato, Ilaria Tiddi, Arne Br{\"{o}}ring, Simon Maier, Femke Ongenae, Riccardo Tommasini, and Mehwish Alam, 12739:136–40. Lecture Notes in Computer Science. Springer, 2021. https://doi.org/10.1007/978-3-030-80418-3\_25.
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2021 | Conference Paper | LibreCat-ID: 24724
Ali, Manzoor, Muhammad Saleem, and Axel-Cyrille Ngonga Ngomo. “Unsupervised Relation Extraction Using Sentence Encoding.” In The Semantic Web: {ESWC} 2021 Satellite Events - Virtual Event, June 6-10, 2021, Revised Selected Papers, edited by Ruben Verborgh, Anastasia Dimou, Aidan Hogan, Claudia d’Amato, Ilaria Tiddi, Arne Br{\"{o}}ring, Simon Maier, Femke Ongenae, Riccardo Tommasini, and Mehwish Alam, 12739:136–40. Lecture Notes in Computer Science. Springer, 2021. https://doi.org/10.1007/978-3-030-80418-3\_25.
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2021 | Conference Paper | LibreCat-ID: 24725
Shahzad, Moemmur, Ayesha Amin, Diego Esteves, and Axel-Cyrille Ngonga Ngomo. “InferNER: An Attentive Model Leveraging the Sentence-Level Information for Named Entity Recognition in Microblogs.” In Proceedings of the Thirty-Fourth International Florida Artificial Intelligence Research Society Conference, North Miami Beach, Florida, USA, May 17-19, 2021, edited by Eric Bell and Fazel Keshtkar, 2021. https://doi.org/10.32473/flairs.v34i1.128538.
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2021 | Conference Paper | LibreCat-ID: 24726
Röder, Michael, Pham Thuy Sy Nguyen, Felix Conrads, Ana Alexandra Morim da Silva, and Axel-Cyrille Ngonga Ngomo. “Lemming - Example-Based Mimicking of Knowledge Graphs.” In 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, 62–69. {IEEE}, 2021. https://doi.org/10.1109/ICSC50631.2021.00015.
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2021 | Conference Paper | LibreCat-ID: 24727
Amer Desouki, Abdelmoneim, Felix Conrads, Michael Röder, and Axel-Cyrille Ngonga Ngomo. “SYNTHG: Mimicking RDF Graphs Using Tensor Factorization.” In 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, 76–79. {IEEE}, 2021. https://doi.org/10.1109/ICSC50631.2021.00017.
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2021 | Conference Paper | LibreCat-ID: 24728
Demir, Caglar, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “A Shallow Neural Model for Relation Prediction.” In 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, 179–82. {IEEE}, 2021. https://doi.org/10.1109/ICSC50631.2021.00038.
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2021 | Conference Paper | LibreCat-ID: 24729
G. Athreya, Ram, Srividya Kona Bansal, Axel-Cyrille Ngonga Ngomo, and Ricardo Usbeck. “Template-Based Question Answering Using Recursive Neural Networks.” In 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, 195–98. {IEEE}, 2021. https://doi.org/10.1109/ICSC50631.2021.00041.
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2021 | Conference Paper | LibreCat-ID: 24730
Jalota, Rricha, Daniel Vollmers, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “LAUREN - Knowledge Graph Summarization for Question Answering.” In 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, 221–26. {IEEE}, 2021. https://doi.org/10.1109/ICSC50631.2021.00047.
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2021 | Conference Paper | LibreCat-ID: 24731
Wilke, Adrian, Arwa Bannoura, and Axel-Cyrille Ngonga Ngomo. “Relicensing Combined Datasets.” In 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, 241–47. {IEEE}, 2021. https://doi.org/10.1109/ICSC50631.2021.00050.
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2021 | Conference Paper | LibreCat-ID: 24732
Röder, Michael, Geraldo de Souza, Denis Kuchelev, Abdelmoneim Amer Desouki, and Axel-Cyrille Ngonga Ngomo. “ORCA - a Benchmark for Data Web Crawlers.” In 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, 272–79. {IEEE}, 2021. https://doi.org/10.1109/ICSC50631.2021.00054.
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2021 | Conference Paper | LibreCat-ID: 25203
Alexandra Morim da Silva, Ana, Michael Röder, and Axel-Cyrille Ngonga Ngomo. “Using Compositional Embeddings for Fact Checking.” In The Semantic Web - {ISWC} 2021 - 20th International Semantic Web Conference, {ISWC} 2021, Virtual Event, October 24-28, 2021, Proceedings, edited by Andreas Hotho, Eva Blomqvist, Stefan Dietze, Achille Fokoue, Ying Ding, Payam M. Barnaghi, Armin Haller, Mauro Dragoni, and Harith Alani, 12922:270–86. Lecture Notes in Computer Science. Springer, 2021. https://doi.org/10.1007/978-3-030-88361-4\_16.
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2021 | Conference Paper | LibreCat-ID: 25206
Demir, Caglar, and Axel-Cyrille Ngonga Ngomo. “Convolutional Complex Knowledge Graph Embeddings.” In The Semantic Web - 18th International Conference, {ESWC} 2021, Virtual Event, June 6-10, 2021, Proceedings, edited by Ruben Verborgh, Katja Hose, Heiko Paulheim, Pierre{-}Antoine Champin, Maria Maleshkova, Oscar Corcho, Petar Ristoski, and Mehwish Alam, 12731:409–24. Lecture Notes in Computer Science. Springer, 2021. https://doi.org/10.1007/978-3-030-77385-4\_24.
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2021 | Conference Paper | LibreCat-ID: 25208
Speck, Ren{\’{e}}, Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “Twitter Network Mimicking for Data Storage Benchmarking.” In 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, 298–305. {IEEE}, 2021. https://doi.org/10.1109/ICSC50631.2021.00057.
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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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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.
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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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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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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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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
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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| Files available
| 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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| Files available
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2020 | Journal Article | LibreCat-ID: 25326
Röder, Michael, Denis Kuchelev, and Axel-Cyrille Ngonga Ngomo. “HOBBIT: A Platform for Benchmarking Big Linked Data.” Data Sci. 3, no. 1 (2020): 15–35. https://doi.org/10.3233/ds-190021.
LibreCat
| DOI
2020 | Conference Paper | LibreCat-ID: 25328
Röder, Michael, Geraldo de Souza, and Axel-Cyrille Ngonga Ngomo. “Squirrel - Crawling RDF Knowledge Graphs on the Web.” In The Semantic Web - {ISWC} 2020 - 19th International Semantic Web Conference, Athens, Greece, November 2-6, 2020, Proceedings, Part {II}, edited by Jeff Z. Pan, Valentina A. M. Tamma, Claudia d’Amato, Krzysztof Janowicz, Bo Fu, Axel Polleres, Oshani Seneviratne, and Lalana Kagal, 12507:34–47. Lecture Notes in Computer Science. Springer, 2020. https://doi.org/10.1007/978-3-030-62466-8\_3.
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2020 | Conference Paper | LibreCat-ID: 25333
Georgala, Kleanthi, Mohamed Ahmed Sherif, Michael Röder, and Axel-Cyrille Ngonga Ngomo. “Applying Edge-Counting Semantic Similarities to Link Discovery: Scalability and Accuracy.” In Proceedings of the 15th International Workshop on Ontology Matching Co-Located with the 19th International Semantic Web Conference {(ISWC} 2020), Virtual Conference (Originally Planned to Be in Athens, Greece), November 2, 2020, edited by Pavel Shvaiko, Jérôme Euzenat, Ernesto Jimenez-Ruiz, Oktie Hassanzadeh, and Cássia Trojahn, 2788:36–47. {CEUR} Workshop Proceedings. CEUR-WS.org, 2020.
LibreCat
2020 | Conference Paper | LibreCat-ID: 25340
Ahmed Sherif, Mohamed, Kevin Dreßler, and Axel-Cyrille Ngonga Ngomo. “LIGON - Link Discovery with Noisy Oracles.” In Proceedings of the 15th International Workshop on Ontology Matching Co-Located with the 19th International Semantic Web Conference {(ISWC} 2020), Virtual Conference (Originally Planned to Be in Athens, Greece), November 2, 2020, edited by Pavel Shvaiko, Jérôme Euzenat, Ernesto Jimenez-Ruiz, Oktie Hassanzadeh, and Cássia Trojahn, 2788:48–59. {CEUR} Workshop Proceedings. CEUR-WS.org, 2020.
LibreCat
2020 | Conference Paper | LibreCat-ID: 25341
Bigerl, Alexander, Felix Conrads, Charlotte Behning, Mohamed Ahmed Sherif, Muhammad Saleem, and Axel-Cyrille Ngonga Ngomo. “Tentris - A Tensor-Based Triple Store.” In The Semantic Web - {ISWC} 2020 - 19th International Semantic Web Conference, Athens, Greece, November 2-6, 2020, Proceedings, Part {I}, edited by Jeff Z. Pan, Valentina A. M. Tamma, Claudia d’Amato, Krzysztof Janowicz, Bo Fu, Axel Polleres, Oshani Seneviratne, and Lalana Kagal, 12506:56–73. Lecture Notes in Computer Science. Springer, 2020. https://doi.org/10.1007/978-3-030-62419-4\_4.
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| DOI
2020 | Conference Paper | LibreCat-ID: 25342
Georgala, Kleanthi, Mohamed Ahmed Sherif, and Axel-Cyrille Ngonga Ngomo. “LIGER - Link Discovery with Partial Recall.” In Proceedings of the 15th International Workshop on Ontology Matching Co-Located with the 19th International Semantic Web Conference {(ISWC} 2020), Virtual Conference (Originally Planned to Be in Athens, Greece), November 2, 2020, edited by Pavel Shvaiko, Jérôme Euzenat, Ernesto Jimenez-Ruiz, Oktie Hassanzadeh, and Cássia Trojahn, 2788:87–91. {CEUR} Workshop Proceedings. CEUR-WS.org, 2020.
LibreCat
2020 | Conference Paper | LibreCat-ID: 25343
Moussallem, Diego, Dwaraknath Gnaneshwar, Thiago Castro Ferreira, and Axel-Cyrille Ngonga Ngomo. “NABU - Multilingual Graph-Based Neural RDF Verbalizer.” In The Semantic Web - {ISWC} 2020 - 19th International Semantic Web Conference, Athens, Greece, November 2-6, 2020, Proceedings, Part {I}, edited by Jeff Z. Pan, Valentina A. M. Tamma, Claudia d’Amato, Krzysztof Janowicz, Bo Fu, Axel Polleres, Oshani Seneviratne, and Lalana Kagal, 12506:420–37. Lecture Notes in Computer Science. Springer, 2020. https://doi.org/10.1007/978-3-030-62419-4\_24.
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| DOI
2020 | Conference Paper | LibreCat-ID: 25344
Zhang, Xinyue, Meng Wang, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Guilin Qi, and Haofen Wang. “Revealing Secrets in SPARQL Session Level.” In The Semantic Web - {ISWC} 2020 - 19th International Semantic Web Conference, Athens, Greece, November 2-6, 2020, Proceedings, Part {I}, edited by Jeff Z. Pan, Valentina A. M. Tamma, Claudia d’Amato, Krzysztof Janowicz, Bo Fu, Axel Polleres, Oshani Seneviratne, and Lalana Kagal, 12506:672–90. Lecture Notes in Computer Science. Springer, 2020. https://doi.org/10.1007/978-3-030-62419-4\_38.
LibreCat
| DOI
2020 | Book Chapter | LibreCat-ID: 25345
Röder, Michael, Mohamed Ahmed Sherif, Muhammad Saleem, Felix Conrads, and Axel-Cyrille Ngonga Ngomo. “Benchmarking the Lifecycle of Knowledge Graphs.” In Knowledge Graphs for EXplainable Artificial Intelligence: Foundations, Applications and Challenges, edited by Ilaria Tiddi, Freddy Lécué, and Pascal Hitzler, 47:73–97. Studies on the Semantic Web. {IOS} Press, 2020. https://doi.org/10.3233/SSW200012.
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| DOI
2020 | Book Chapter | LibreCat-ID: 25346
Moussallem, Diego, René Speck, and Axel-Cyrille Ngonga Ngomo. “Generating Explanations in Natural Language from Knowledge Graphs.” In Knowledge Graphs for EXplainable Artificial Intelligence: Foundations, Applications and Challenges, edited by Ilaria Tiddi, Freddy Lécué, and Pascal Hitzler, 47:213–41. Studies on the Semantic Web. {IOS} Press, 2020. https://doi.org/10.3233/SSW200020.
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| DOI
2020 | Conference (Editor) | LibreCat-ID: 25347
Harth, Andreas, Sabrina Kirrane, Axel-Cyrille Ngonga Ngomo, Heiko Paulheim, Anisa Rula, Anna Lisa Gentile, Peter Haase, and Michael Cochez, eds. The Semantic Web - 17th International Conference, ESWC 2020, Heraklion, Crete, Greece, May 31-June 4, 2020, Proceedings. Vol. 12123. Lecture Notes in Computer Science. Springer, 2020. https://doi.org/10.1007/978-3-030-49461-2.
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2020 | Conference (Editor) | LibreCat-ID: 25348
Koubarakis, Manolis, Harith Alani, Grigoris Antoniou, Kalina Bontcheva, John G. Breslin, Diego Collarana, Elena Demidova, et al., eds. Joint Proceedings of Workshops AI4LEGAL2020, NLIWOD, PROFILES 2020, QuWeDa 2020 and SEMIFORM2020 Colocated with the 19th International Semantic Web Conference (ISWC 2020), Virtual Conference, November, 2020. Vol. 2722. {CEUR} Workshop Proceedings. CEUR-WS.org, 2020.
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2020 | Conference (Editor) | LibreCat-ID: 25349
Mihindukulasooriya, Nandana, Mohnish Dubey, Alfio Gliozzo, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, and Ricardo Usbeck, eds. Proceedings of the SeMantic AnsweR Type Prediction Task (SMART) at ISWC 2020 Semantic Web Challenge Co-Located with the 19th International Semantic Web Conference (ISWC 2020), Virtual Conference, November 5th, 2020. Vol. 2774. {CEUR} Workshop Proceedings. CEUR-WS.org, 2020.
LibreCat
2020 | Journal Article | LibreCat-ID: 25350
Demir, Caglar, and Axel-Cyrille Ngonga Ngomo. “A Physical Embedding Model for Knowledge Graphs.” CoRR abs/2001.07418 (2020).
LibreCat
2020 | Journal Article | LibreCat-ID: 25351
Röder, Michael, Mohamed Ahmed Sherif, Muhammad Saleem, Felix Conrads, and Axel-Cyrille Ngonga Ngomo. “Benchmarking Knowledge Graphs on the Web.” CoRR abs/2002.06039 (2020).
LibreCat
2020 | Journal Article | LibreCat-ID: 25352
Hogan, Aidan, Eva Blomqvist, Michael Cochez, Claudia d’Amato, Gerard de Melo, Claudio Gutiérrez, José Emilio Labra Gayo, et al. “Knowledge Graphs.” CoRR abs/2003.02320 (2020).
LibreCat
2020 | Journal Article | LibreCat-ID: 25353
M. Zahera, Hamada, Mohamed Ahmed Sherif, and Axel-Cyrille Ngonga Ngomo. “Semantic-Based End-to-End Learning for Typhoon Intensity Prediction.” CoRR abs/2003.13779 (2020).
LibreCat
2020 | Journal Article | LibreCat-ID: 25354
G. Athreya, Ram, Srividya Kona Bansal, Axel-Cyrille Ngonga Ngomo, and Ricardo Usbeck. “Template-Based Question Answering Using Recursive Neural Networks.” CoRR abs/2004.13843 (2020).
LibreCat
2020 | Journal Article | LibreCat-ID: 25355
Demir, Caglar, and Axel-Cyrille Ngonga Ngomo. “Convolutional Complex Knowledge Graph Embeddings.” CoRR abs/2008.03130 (2020).
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2020 | Journal Article | LibreCat-ID: 25356
M. Zahera, Hamada, Rricha Jalota, Mohamed Ahmed Sherif, and Axel-Cyrille Ngonga Ngomo. “I-AID: Identifying Actionable Information from Disaster-Related Tweets.” CoRR abs/2008.13544 (2020).
LibreCat
2020 | Journal Article | LibreCat-ID: 25357
Zhang, Xinyue, Meng Wang, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Guilin Qi, and Haofen Wang. “Revealing Secrets in SPARQL Session Level.” CoRR abs/2009.06625 (2020).
LibreCat
2020 | Journal Article | LibreCat-ID: 25358
Moussallem, Diego, Dwaraknath Gnaneshwar, Thiago Castro Ferreira, and Axel-Cyrille Ngonga Ngomo. “NABU - Multilingual Graph-Based Neural RDF Verbalizer.” CoRR abs/2009.07728 (2020).
LibreCat
2020 | Journal Article | LibreCat-ID: 25359
Ali, Waqas, Muhammad Saleem, Bin Yao, Aidan Hogan, and Axel-Cyrille Ngonga Ngomo. “Storage, Indexing, Query Processing, and Benchmarking in Centralized and Distributed RDF Engines: A Survey.” CoRR abs/2009.10331 (2020).
LibreCat
2020 | Journal Article | LibreCat-ID: 25360
Mihindukulasooriya, Nandana, Mohnish Dubey, Alfio Gliozzo, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, and Ricardo Usbeck. “SeMantic AnsweR Type Prediction Task (SMART) at ISWC 2020 Semantic Web Challenge.” CoRR abs/2012.00555 (2020).
LibreCat
2020 | Conference Paper | LibreCat-ID: 20141 |
Heindorf, Stefan, Yan Scholten, Henning Wachsmuth, Axel-Cyrille Ngonga Ngomo, and Martin Potthast. “CauseNet: Towards a Causality Graph Extracted from the Web.” In Proceedings of the 28th ACM International Conference on Information and Knowledge Management (CIKM 2020), 3023–30, 2020. https://doi.org/10.1145/3340531.3412763.
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| DOI
| Download (ext.)
2020 | Book Chapter | LibreCat-ID: 29042
Röder, Michael, Mohamed Sherif, Muhammad Saleem, Felix Conrads, and Axel-Cyrille Ngonga Ngomo. “Benchmarking the Lifecycle of Knowledge Graphs.” In Knowledge Graphs for EXplainable Artificial Intelligence: Foundations, Applications and Challenges, edited by Ilaria Tiddi, Freddy Lécué, and Pascal Hitzler, 73–97. IOS Press, 2020. https://doi.org/10.3233/SSW200012.
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| DOI
2020 | Conference Paper | LibreCat-ID: 29009
Georgala, Kleanthi, Michael Röder, Mohamed Sherif, and Axel-Cyrille Ngonga Ngomo. “Applying Edge-Counting Semantic Similarities to Link Discovery: Scalability and Accuracy.” In Proceedings of Ontology Matching Workshop 2020, 2020.
LibreCat
2020 | Conference Paper | LibreCat-ID: 29010
Sherif, Mohamed, Kevin Dreßler}, and Axel-Cyrille Ngonga Ngomo. “LIGON – Link Discovery with Noisy Oracles.” In Proceedings of Ontology Matching Workshop 2020, 2020.
LibreCat
2020 | Journal Article | LibreCat-ID: 29039
Bigerl, Alexander, Felix Conrads, Charlotte Behning, Mohamed Sherif, Muhammad Saleem, and Axel-Cyrille Ngonga Ngomo. “Tentris – A Tensor-Based Triple Store.” The Semantic Web -- ISWC 2020, 2020.
LibreCat
2020 | Conference Paper | LibreCat-ID: 29007
Georgala, Kleanthi, Mohamed Sherif, and Axel-Cyrille Ngonga Ngomo. “LIGER – Link Discovery with Partial Recall.” In Proceedings of Ontology Matching Workshop 2020, 2020.
LibreCat
2019 | Journal Article | LibreCat-ID: 25361
Mehmood, Qaiser, Muhammad Saleem, Ratnesh Sahay, Axel-Cyrille Ngonga Ngomo, and Mathieu d’Aquin. “QPPDs: Querying Property Paths Over Distributed RDF Datasets.” {IEEE} Access 7 (2019): 101031–45. https://doi.org/10.1109/ACCESS.2019.2930416.
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2019 | Journal Article | LibreCat-ID: 25362
Usbeck, Ricardo, Michael Röder, Michael Hoffmann, Felix Conrads, Jonathan Huthmann, Axel-Cyrille Ngonga Ngomo, Christian Demmler, and Christina Unger. “Benchmarking Question Answering Systems.” Semantic Web 10, no. 2 (2019): 293–304. https://doi.org/10.3233/SW-180312.
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2019 | Journal Article | LibreCat-ID: 25363
Rula, Anisa, Matteo Palmonari, Simone Rubinacci, Axel-Cyrille Ngonga Ngomo, Jens Lehmann, Andrea Maurino, and Diego Esteves. “TISCO: Temporal Scoping of Facts.” J. Web Semant. 54 (2019): 72–86. https://doi.org/10.1016/j.websem.2018.09.002.
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2019 | Journal Article | LibreCat-ID: 25364
Speck, René, and Axel-Cyrille Ngonga Ngomo. “Leopard - A Baseline Approach to Attribute Prediction and Validation for Knowledge Graph Population.” J. Web Semant. 55 (2019): 102–7. https://doi.org/10.1016/j.websem.2018.12.006.
LibreCat
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2019 | Conference Paper | LibreCat-ID: 25365
Jalota, Rricha, Priyansh Trivedi, Gaurav Maheshwari, Axel-Cyrille Ngonga Ngomo, and Ricardo Usbeck. “An Approach for Ex-Post-Facto Analysis of Knowledge Graph-Driven Chatbots - The DBpedia Chatbot.” In Chatbot Research and Design - Third International Workshop, {CONVERSATIONS} 2019, Amsterdam, The Netherlands, November 19-20, 2019, Revised Selected Papers, edited by Asbjørn Følstad, Theo B. Araujo, Symeon Papadopoulos, Effie Lai-Chong Law, Ole-Christoffer Granmo, Ewa Luger, and Petter Bae Brandtzæg, 11970:19–33. Lecture Notes in Computer Science. Springer, 2019. https://doi.org/10.1007/978-3-030-39540-7\_2.
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