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413 Publications


2025 | Conference Paper | LibreCat-ID: 57324
UniQ-Gen: Unified Query Generation Across Multiple Knowledge Graphs
D. Vollmers, N. Srivastava, H.M.A. Zahera, D. Moussallem, A.-C. Ngonga Ngomo, in: M. Alam, M. Rospocher, M. van Erp, L. Hollink, G.A. Gesese (Eds.), Knowledge Engineering and Knowledge Management, Springer Nature Switzerland, Cham, 2025, pp. 174–189.
LibreCat | DOI
 

2024 | Conference Paper | LibreCat-ID: 54084
Efficient Evaluation of Conjunctive Regular Path Queries Using Multi-way Joins
N. Karalis, A. Bigerl, L. Heidrich, M. Sherif, A.-C. Ngonga Ngomo, in: ESWC, 2024.
LibreCat
 

2024 | Conference Paper | LibreCat-ID: 54449 | OA
Universal Knowledge Graph Embeddings
N.J. KOUAGOU, C. Demir, H.M.A. Zahera, A. Wilke, S. Heindorf, J. Li, A.-C. Ngonga Ngomo, in: Companion Proceedings of the ACM on Web Conference 2024, ACM, 2024.
LibreCat | DOI | Download (ext.)
 

2024 | Book Chapter | LibreCat-ID: 54412
ESLM: Improving Entity Summarization by Leveraging Language Models
A.F. Firmansyah, D. Moussallem, A.-C. Ngonga Ngomo, in: The Semantic Web, Springer Nature Switzerland, Cham, 2024.
LibreCat | DOI
 

2024 | Book Chapter | LibreCat-ID: 54580
Computing Repairs Under Functional and Inclusion Dependencies via Argumentation
Y. Mahmood, J. Virtema, T. Barlag, A.-C. Ngonga Ngomo, in: Lecture Notes in Computer Science, Springer Nature Switzerland, Cham, 2024.
LibreCat | DOI
 

2024 | Conference Paper | LibreCat-ID: 55095
Enhancing Relation Extraction Through Augmented Data: Large Language Models Unleashed
A. Manzoor, M. Sohail Nisar, S. Muhammad, D. Moussallem, A.-C. Ngonga Ngomo, in: NLDB24, Springer International Publishing, 2024.
LibreCat
 

2024 | Conference Paper | LibreCat-ID: 55094
Generating SPARQL from Natural Language Using Chain-of-Thoughts Prompting
H.M.A. Zahera, A. Manzoor, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo, in: SEMANTiCS, Amsterdam, Netherlands, 2024.
LibreCat
 

2024 | Preprint | LibreCat-ID: 54450 | OA
Beyond One-Shot Explanations: A Systematic Literature Review of Dialogue-Based XAI Approaches
D. Mindlin, F. Beer, L.N. Sieger, S. Heindorf, P. Cimiano, E. Esposito, A.-C. Ngonga Ngomo, (2024).
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2024 | Book Chapter | LibreCat-ID: 56214
AutoCL: AutoML for Concept Learning
J. Li, S. Satheesh, S. Heindorf, D. Moussallem, R. Speck, A.-C. Ngonga Ngomo, in: Communications in Computer and Information Science, Springer Nature Switzerland, Cham, 2024.
LibreCat | DOI
 

2024 | Book Chapter | LibreCat-ID: 56581
IndEL: Indonesian Entity Linking Benchmark Dataset for General and Specific Domains
R.H. Gusmita, M.F.A. Abshar, D. Moussallem, A.-C. Ngonga Ngomo, in: Lecture Notes in Computer Science, Springer Nature Switzerland, Cham, 2024.
LibreCat | Files available | DOI
 

2024 | Conference Paper | LibreCat-ID: 56983
ExPrompt: Augmenting Prompts Using Examples as Modern Baseline for Stance Classification
U. Qudus, M. Röder, D. Vollmers, A.-C. Ngonga Ngomo, in: Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, ACM, 2024, pp. 3994–3999.
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2024 | Conference Paper | LibreCat-ID: 57282
Benchmarking Low-Resource Machine Translation Systems
A.A. Morim da Silva, N. Srivastava, T. Moteu Ngoli, M. Röder, D. Moussallem, A.-C. Ngonga Ngomo, in: Proceedings of the Seventh Workshop on Technologies for Machine Translation of Low-Resource Languages (LoResMT 2024), Association for Computational Linguistics, 2024.
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2024 | Preprint | LibreCat-ID: 57280
LOLA -- An Open-Source Massively Multilingual Large Language Model
N. Srivastava, D. Kuchelev, T. Moteu Ngoli, K. Shetty, M. Röder, D. Moussallem, H.M.A. Zahera, A.-C. Ngonga Ngomo, (2024).
LibreCat
 

2024 | Preprint | LibreCat-ID: 57277
MST5 -- Multilingual Question Answering over Knowledge Graphs
N. Srivastava, M. Ma, D. Vollmers, H.M.A. Zahera, D. Moussallem, A.-C. Ngonga Ngomo, (2024).
LibreCat
 

2024 | Conference Paper | LibreCat-ID: 57240
FaVEL: Fact Validation Ensemble Learning
U. Qudus, M. Röder, F.L. Tatkeu Pekarou, A.A. Morim da Silva, A.-C. Ngonga Ngomo, in: M. Rospocher, Mehwish Alam (Eds.), EKAW 2024, 2024.
LibreCat | Files available
 

2023 | Book Chapter | LibreCat-ID: 46460
Class Expression Learning with Multiple Representations
A.-C. Ngonga Ngomo, C. Demir, N.J. Kouagou, S. Heindorf, N. Karalis, A. Bigerl, in: Compendium of Neurosymbolic Artificial Intelligence, IOS Press, 2023, pp. 272–286.
LibreCat
 

2023 | Journal Article | LibreCat-ID: 46248 | OA
LitCQD: Multi-Hop Reasoning in Incomplete Knowledge Graphs with Numeric Literals
C. Demir, M. Wiebesiek, R. Lu, A.-C. Ngonga Ngomo, S. Heindorf, ECML PKDD (2023).
LibreCat | Files available
 

2023 | Book Chapter | LibreCat-ID: 47421 | OA
Neural Class Expression Synthesis in ALCHIQ(D)
N.J. Kouagou, S. Heindorf, C. Demir, A.-C. Ngonga Ngomo, in: Machine Learning and Knowledge Discovery in Databases: Research Track, Springer Nature Switzerland, Cham, 2023.
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2023 | Preprint | LibreCat-ID: 37937 | OA
Explaining ELH Concept Descriptions through Counterfactual Reasoning
L.N. Sieger, S. Heindorf, L. Blübaum, A.-C. Ngonga Ngomo, ArXiv:2301.05109 (2023).
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2023 | Conference Paper | LibreCat-ID: 50797
A Topic Model for the Data Web
M. Röder, D. Kuchelev, A.-C. Ngonga Ngomo, in: F. Ortiz-Rodriguez, B. Villazón-Terrazas, S. Tiwari, C. Bobed (Eds.), Knowledge Graphs and Semantic Web, Springer Nature Switzerland, Cham, 2023, pp. 183–198.
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2023 | Book Chapter | LibreCat-ID: 46516
Explainable Integration of Knowledge Graphs Using Large Language Models
A.F.A. Ahmed, A.F. Firmansyah, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo, in: Natural Language Processing and Information Systems, Springer Nature Switzerland, Cham, 2023.
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2023 | Conference Paper | LibreCat-ID: 54581
Unsupervised Relation Extraction with Sentence level Distributional Semantics
A. Manzoor, M. Saleem, A.-C. Ngonga Ngomo, in: 2023 IEEE 17th International Conference on Semantic Computing (ICSC), 2023, pp. 274–277.
LibreCat
 

2023 | Conference Paper | LibreCat-ID: 54612
Neural Class Expression Synthesis (Extended Abstract)
N.J. KOUAGOU, S. Heindorf, C. Demir, A.-C. Ngonga Ngomo, in: NeSy 2023, 17th International Workshop on Neural-Symbolic Learning and Reasoning, Certosa Di Pontignano, Siena, Italy, CEUR-WS, 2023.
LibreCat
 

2023 | Conference Paper | LibreCat-ID: 54608
Using Pre-trained Language Models for Abstractive DBPEDIA Summarization: A Comparative Study
H.M.A. Zahera, F. Vitiugin, M. Sherif, C. Castillo, A.-C. Ngonga Ngomo, in: SEMANTiCS, 2023.
LibreCat
 

2023 | Conference Paper | LibreCat-ID: 54610
LauNuts: A Knowledge Graph to identify and compare geographic regions in the European Union
A. Wilke, A.-C. Ngonga Ngomo, in: The Semantic Web (ESWC 2023), 2023.
LibreCat
 

2023 | Conference Paper | LibreCat-ID: 54611
Native Execution of GraphQL Queries over RDF Graphs Using Multi-way Joins
N. Karalis, A. Bigerl, A.-C. Ngonga Ngomo, in: SEMANTiCS, 2023.
LibreCat
 

2023 | Book Chapter | LibreCat-ID: 54613
Configuration and Evaluation
J.M. Hanselle, E. Hüllermeier, F. Mohr, A.-C. Ngonga Ngomo, M. Sherif, A. Tornede, M.D. Wever, in: C.-J. Haake, F. Meyer auf der Heide, M. Platzner, H. Wachsmuth, H. Wehrheim (Eds.), On-The-Fly Computing – Individualized IT-Services in Dynamic Markets, Heinz Nixdorf Institut, Universität Paderborn, 2023, pp. 85–104.
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2023 | Conference Paper | LibreCat-ID: 54614
Lingua Franca - Entity-Aware Machine Translation Approach for Question Answering over Knowledge Graphs
N. Srivastava, A. Perevalov, D. Kuchelev, D. Moussallem, A.-C. Ngonga Ngomo, A. Both, in: K.B. Venable, D. Garijo, B. Jalaian (Eds.), Proceedings of the 12th Knowledge Capture Conference 2023, {K-CAP} 2023, Pensacola, FL, USA, December 5-7, 2023, ACM, 2023, pp. 122–130.
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2023 | Conference Paper | LibreCat-ID: 54615
Learning Permutation-Invariant Embeddings for Description Logic Concepts
C. Demir, A.-C. Ngonga Ngomo, in: Advances in Intelligent Data Analysis XXI: 21st International Symposium on Intelligent Data Analysis, IDA 2023, Louvain-La-Neuve, Belgium, April 12–14, 2023, Proceedings, 2023, pp. 103–115.
LibreCat
 

2023 | Conference Paper | LibreCat-ID: 54616
COBALT: A Content-Based Similarity Approach for Link Discovery over Geospatial Knowledge Graphs
A. Becker, A.F.A. Ahmed, M. Sherif, A.-C. Ngonga Ngomo, in: SEMANTiCS, 2023.
LibreCat
 

2023 | Conference Paper | LibreCat-ID: 50796
TemporalFC: A Temporal Fact Checking approach over Knowledge Graphs
U. Qudus, M. Röder, S. Kirrane, A.-C. Ngonga Ngomo, in: T. R. Payne, V. Presutti, G. Qi, M. Poveda-Villalónt, G. Stoilos, L. Hollink, Z. Kaoudi, G. Cheng, J. Li (Eds.), The Semantic Web – ISWC 2023, Springer International Publishing, Cham, 2023, pp. 465–483.
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2023 | Book Chapter | LibreCat-ID: 54588
RELD: A Knowledge Graph of Relation Extraction Datasets
A. Manzoor, M. Saleem, D. Moussallem, M.A. Sherif, A.-C. Ngonga Ngomo, in: The Semantic Web, Springer Nature Switzerland, Cham, 2023.
LibreCat | DOI
 

2023 | Research Data | LibreCat-ID: 45560
RELD: A Knowledge Graph of Relation Extraction Datasets
M. Ali, M. Saleem, D. Moussallem, M. Sherif, A.-C. Ngonga Ngomo, RELD: A Knowledge Graph of Relation Extraction Datasets, LibreCat University, 2023.
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2023 | Conference Paper | LibreCat-ID: 33734 | OA
Neural Class Expression Synthesis
N.J. KOUAGOU, S. Heindorf, C. Demir, A.-C. Ngonga Ngomo, in: C. Pesquita, E. Jimenez-Ruiz, J. McCusker, D. Faria, M. Dragoni, A. Dimou, R. Troncy, S. Hertling (Eds.), The Semantic Web - 20th Extended Semantic Web Conference (ESWC 2023), Springer International Publishing, 2023, pp. 209–226.
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2023 | Book Chapter | LibreCat-ID: 45884 | OA
Configuration and Evaluation
J.M. Hanselle, E. Hüllermeier, F. Mohr, A.-C. Ngonga Ngomo, M. Sherif, A. Tornede, M.D. Wever, in: C.-J. Haake, F. Meyer auf der Heide, M. Platzner, H. Wachsmuth, H. Wehrheim (Eds.), On-The-Fly Computing -- Individualized IT-Services in Dynamic Markets, Heinz Nixdorf Institut, Universität Paderborn, Paderborn, 2023, pp. 85–104.
LibreCat | Files available | DOI
 

2023 | Conference Paper | LibreCat-ID: 46514
COBALT: A Content-Based Similarity Approach for Link Discovery over Geospatial Knowledge Graphs
A. Becker, A.F.A. Ahmed, M. Sherif, A.-C. Ngonga Ngomo, in: SEMANTiCS, 2023.
LibreCat
 

2023 | Conference Paper | LibreCat-ID: 46518
Using Pre-trained Language Models for Abstractive DBpedia Summarization: A Comparative Study
H.M.A. Zahera, F. Vitiugin, M. Sherif, C. Castillo, A.-C. Ngonga Ngomo, in: SEMANTiCS, 2023.
LibreCat
 

2023 | Research Data | LibreCat-ID: 45558
IngridKG: A FAIR Knowledge Graph of Graffiti
M. Sherif, A.A. Morim da Silva, S. Pestryakova, A.F.A. Ahmed, S. Niemann, A.-C. Ngonga Ngomo, IngridKG: A FAIR Knowledge Graph of Graffiti, LibreCat University, 2023.
LibreCat | DOI
 

2023 | Book Chapter | LibreCat-ID: 46572
IndQNER: Named Entity Recognition Benchmark Dataset from the Indonesian Translation of the Quran
R.H. Gusmita, A.F. Firmansyah, D. Moussallem, A.-C. Ngonga Ngomo, in: Natural Language Processing and Information Systems, Springer Nature Switzerland, Cham, 2023.
LibreCat | Files available | DOI
 

2023 | Conference Paper | LibreCat-ID: 57274
Lingua Franca – Entity-Aware Machine Translation Approach for Question Answering over Knowledge Graphs
N. Srivastava, A. Perevalov, D. Kuchelev, D. Moussallem, A.-C. Ngonga Ngomo, A. Both, in: Proceedings of the 12th Knowledge Capture Conference 2023, ACM, 2023.
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2022 | Conference Paper | LibreCat-ID: 31806
ADAGIO - Automated Data Augmentation of Knowledge Graphs Using Multi-expression Learning
K. Dreßler, M. Sherif, A.-C. Ngonga Ngomo, in: Proceedings of the 33rd ACM Conference on Hypertext and Hypermedia, 2022.
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2022 | Preprint | LibreCat-ID: 31545 | OA
Kronecker Decomposition for Knowledge Graph Embeddings
C. Demir, J. Lienen, A.-C. Ngonga Ngomo, ArXiv:2205.06560 (2022).
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2022 | Conference Paper | LibreCat-ID: 35541
MultPAX: Keyphrase Extraction Using Language Models and Knowledge Graphs
H.M. Zahera, D. Vollmers, M.A. Sherif, A.-C. Ngonga Ngomo, in: U. Sattler, A. Hogan, C.M. Keet, V. Presutti, J.P.A. Almeida, H. Takeda, P. Monnin, G. Pirrò, C. d’Amato (Eds.), The Semantic Web - ISWC 2022 - 21st International Semantic Web Conference, Virtual Event, October 23-27, 2022, Proceedings, Springer, 2022, pp. 303–318.
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2022 | Conference Paper | LibreCat-ID: 35540
Can Machine Translation be a Reasonable Alternative for Multilingual Question Answering Systems over Knowledge Graphs?
A. Perevalov, A. Both, D. Diefenbach, A.-C. Ngonga Ngomo, in: F. Laforest, R. Troncy, E. Simperl, D. Agarwal, A. Gionis, I. Herman, L. Médini (Eds.), WWW ’22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022, ACM, 2022, pp. 977–986.
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2022 | Conference (Editor) | LibreCat-ID: 35538
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
M. Saleem, A.-C. Ngonga Ngomo, 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, CEUR-WS.org, 2022.
LibreCat
 

2022 | Conference Paper | LibreCat-ID: 35544
Hashing the Hypertrie: Space- and Time-Efficient Indexing for SPARQL in Tensors
A. Bigerl, L. Conrads, C. Behning, M. Saleem, A.-C. Ngonga Ngomo, in: U. Sattler, A. Hogan, C.M. Keet, V. Presutti, J.P.A. Almeida, H. Takeda, P. Monnin, G. Pirrò, C. d’Amato (Eds.), The Semantic Web - ISWC 2022 - 21st International Semantic Web Conference, Virtual Event, October 23-27, 2022, Proceedings, Springer, 2022, pp. 57–73.
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2022 | Conference Paper | LibreCat-ID: 35543
REBench: Microbenchmarking Framework for Relation Extraction Systems
M. Ali, M. Saleem, A.-C. Ngonga Ngomo, in: U. Sattler, A. Hogan, C.M. Keet, V. Presutti, J.P.A. Almeida, H. Takeda, P. Monnin, G. Pirrò, C. d’Amato (Eds.), The Semantic Web - ISWC 2022 - 21st International Semantic Web Conference, Virtual Event, October 23-27, 2022, Proceedings, Springer, 2022, pp. 643–659.
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2022 | Conference Paper | LibreCat-ID: 35542
Rapid Explainability for Skill Description Learning
C. Demir, A. Himmelhuber, Y. Liu, A. Bigerl, D. Moussallem, A.-C. Ngonga Ngomo, in: A. Dimou, A. Haller, A.L. Gentile, P. Ristoski (Eds.), 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, CEUR-WS.org, 2022.
LibreCat
 

2022 | Conference Paper | LibreCat-ID: 35545
LSQ Framework: The LSQ Framework for SPARQL Query Log Processing
C. Stadler, M. Saleem, A.-C. Ngonga Ngomo, in: M. Saleem, A.-C.N. Ngomo (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, CEUR-WS.org, 2022, pp. 49–64.
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2022 | Conference Paper | LibreCat-ID: 35547
Kronecker Decomposition for Knowledge Graph Embeddings
C. Demir, J. Lienen, A.-C. Ngonga Ngomo, in: A. Bellogín, L. Boratto, F. Cena (Eds.), HT ’22: 33rd ACM Conference on Hypertext and Social Media, Barcelona, Spain, 28 June 2022- 1 July 2022, ACM, 2022, pp. 1–10.
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2022 | Journal Article | LibreCat-ID: 35551
A survey of RDF stores & SPARQL engines for querying knowledge graphs
W. Ali, M. Saleem, B. Yao, A. Hogan, A.-C. Ngonga Ngomo, VLDB J. 31 (2022) 1–26.
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2022 | Journal Article | LibreCat-ID: 35552
Hardware-agnostic computation for large-scale knowledge graph embeddings
C. Demir, A.-C. Ngonga Ngomo, Softw. Impacts 13 (2022) 100377.
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2022 | Conference Paper | LibreCat-ID: 32509
HybridFC: A Hybrid Fact-Checking Approach for Knowledge Graphs
U. Qudus, M. Röder, M. Saleem, A.-C. Ngonga Ngomo, in: U. Sattler, A. Hogan, M. Keet, V. Presutti (Eds.), The Semantic Web -- ISWC 2022, Springer International Publishing, Cham, n.d., pp. 462--480.
LibreCat | Files available | DOI
 

2022 | Book Chapter | LibreCat-ID: 33740 | OA
Learning Concept Lengths Accelerates Concept Learning in ALC
N.J. KOUAGOU, S. Heindorf, C. Demir, A.-C. Ngonga Ngomo, in: The Semantic Web, Springer International Publishing, Cham, 2022.
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2022 | Conference Paper | LibreCat-ID: 29290 | OA
EvoLearner: Learning Description Logics with Evolutionary Algorithms
S. Heindorf, L. Blübaum, N. Düsterhus, T. Werner, V.N. Golani, C. Demir, A.-C. Ngonga Ngomo, in: WWW, ACM, 2022, pp. 818–828.
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2022 | Journal Article | LibreCat-ID: 29851 | OA
CovidPubGraph: A FAIR Knowledge Graph of COVID-19 Publications
S. Pestryakova, D. Vollmers, M. Sherif, S. Heindorf, M. Saleem, D. Moussallem, A.-C. Ngonga Ngomo, Scientific Data (2022).
LibreCat | DOI | Download (ext.)
 

2022 | Book Chapter | LibreCat-ID: 54585
REBench: Microbenchmarking Framework for Relation Extraction Systems
A. Manzoor, M. Saleem, A.-C. Ngonga Ngomo, in: The Semantic Web – ISWC 2022, Springer International Publishing, Cham, 2022.
LibreCat | DOI
 

2022 | Book Chapter | LibreCat-ID: 33738 | OA
Tab2Onto: Unsupervised Semantification with Knowledge Graph Embeddings
H.M.A. Zahera, S. Heindorf, S. Balke, J. Haupt, M. Voigt, C. Walter, F. Witter, A.-C. Ngonga Ngomo, in: The Semantic Web: ESWC 2022 Satellite Events, Springer International Publishing, Cham, 2022.
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2022 | Conference Paper | LibreCat-ID: 33739 | OA
CausalQA: A Benchmark for Causal Question Answering
A. Bondarenko, M. Wolska, S. Heindorf, L. Blübaum, A.-C. Ngonga Ngomo, B. Stein, P. Braslavski, M. Hagen, M. Potthast, in: Proceedings of the 29th International Conference on Computational Linguistics, International Committee on Computational Linguistics, Gyeongju, Republic of Korea, 2022, pp. 3296–3308.
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2022 | Conference Paper | LibreCat-ID: 46538
MultPAX: Keyphrase Extraction using Language Models and Knowledge Graphs
H.M.A. Zahera, D. Vollmers, M. Sherif, A.-C. Ngonga Ngomo, in: ISWC 2022, Springer, Cham, n.d.
LibreCat | DOI
 

2021 | Journal Article | LibreCat-ID: 24721
Multilingual Verbalization and Summarization for Explainable Link Discovery
A. Fathi Ahmed, M. Ahmed Sherif, D. Moussallem, A.-C. Ngonga Ngomo, Data Knowl. Eng. 133 (2021) 101874.
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2021 | Conference Paper | LibreCat-ID: 24722
Applying Grammar-Based Compression to RDF
M. Röder, P. Frerk, F. Conrads, A.-C. Ngonga Ngomo, in: R. Verborgh, K. Hose, H. Paulheim, P.-A. Champin, M. Maleshkova, O. Corcho, P. Ristoski, M. Alam (Eds.), The Semantic Web - 18th International Conference, {ESWC} 2021, Virtual Event, June 6-10, 2021, Proceedings, Springer, 2021, pp. 93–108.
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2021 | Conference Paper | LibreCat-ID: 24723
Unsupervised Relation Extraction Using Sentence Encoding
M. Ali, M. Saleem, A.-C. Ngonga Ngomo, in: R. Verborgh, A. Dimou, A. Hogan, C. d’Amato, I. Tiddi, A. Br{\"{o}}ring, S. Maier, F. Ongenae, R. Tommasini, M. Alam (Eds.), The Semantic Web: {ESWC} 2021 Satellite Events - Virtual Event, June 6-10, 2021, Revised Selected Papers, Springer, 2021, pp. 136–140.
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2021 | Conference Paper | LibreCat-ID: 24724
Unsupervised Relation Extraction Using Sentence Encoding
M. Ali, M. Saleem, A.-C. Ngonga Ngomo, in: R. Verborgh, A. Dimou, A. Hogan, C. d’Amato, I. Tiddi, A. Br{\"{o}}ring, S. Maier, F. Ongenae, R. Tommasini, M. Alam (Eds.), The Semantic Web: {ESWC} 2021 Satellite Events - Virtual Event, June 6-10, 2021, Revised Selected Papers, Springer, 2021, pp. 136–140.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 24725
InferNER: an attentive model leveraging the sentence-level information for Named Entity Recognition in Microblogs
M. Shahzad, A. Amin, D. Esteves, A.-C. Ngonga Ngomo, in: E. Bell, F. Keshtkar (Eds.), Proceedings of the Thirty-Fourth International Florida Artificial Intelligence Research Society Conference, North Miami Beach, Florida, USA, May 17-19, 2021, 2021.
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2021 | Conference Paper | LibreCat-ID: 24726
Lemming - Example-based Mimicking of Knowledge Graphs
M. Röder, P. Thuy Sy Nguyen, F. Conrads, A. Alexandra Morim da Silva, A.-C. Ngonga Ngomo, in: 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, {IEEE}, 2021, pp. 62–69.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 24727
SYNTHG: Mimicking RDF Graphs Using Tensor Factorization
A. Amer Desouki, F. Conrads, M. Röder, A.-C. Ngonga Ngomo, in: 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, {IEEE}, 2021, pp. 76–79.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 24728
A shallow neural model for relation prediction
C. Demir, D. Moussallem, A.-C. Ngonga Ngomo, in: 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, {IEEE}, 2021, pp. 179–182.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 24729
Template-based Question Answering using Recursive Neural Networks
R. G. Athreya, S. Kona Bansal, A.-C. Ngonga Ngomo, R. Usbeck, in: 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, {IEEE}, 2021, pp. 195–198.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 24730
LAUREN - Knowledge Graph Summarization for Question Answering
R. Jalota, D. Vollmers, D. Moussallem, A.-C. Ngonga Ngomo, in: 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, {IEEE}, 2021, pp. 221–226.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 24731
Relicensing Combined Datasets
A. Wilke, A. Bannoura, A.-C. Ngonga Ngomo, in: 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, {IEEE}, 2021, pp. 241–247.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 24732
ORCA - a Benchmark for Data Web Crawlers
M. Röder, G. de Souza, D. Kuchelev, A. Amer Desouki, A.-C. Ngonga Ngomo, in: 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, {IEEE}, 2021, pp. 272–279.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 25203
Using Compositional Embeddings for Fact Checking
A. Alexandra Morim da Silva, M. Röder, A.-C. Ngonga Ngomo, in: A. Hotho, E. Blomqvist, S. Dietze, A. Fokoue, Y. Ding, P. M. Barnaghi, A. Haller, M. Dragoni, H. Alani (Eds.), The Semantic Web - {ISWC} 2021 - 20th International Semantic Web Conference, {ISWC} 2021, Virtual Event, October 24-28, 2021, Proceedings, Springer, 2021, pp. 270–286.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 25206
Convolutional Complex Knowledge Graph Embeddings
C. Demir, A.-C. Ngonga Ngomo, in: R. Verborgh, K. Hose, H. Paulheim, P.-}Antoine Champin, M. Maleshkova, O. Corcho, P. Ristoski, M. Alam (Eds.), The Semantic Web - 18th International Conference, {ESWC} 2021, Virtual Event, June 6-10, 2021, Proceedings, Springer, 2021, pp. 409–424.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 25208
Twitter Network Mimicking for Data Storage Benchmarking
R. Speck, D. Moussallem, A.-C. Ngonga Ngomo, in: 15th {IEEE} International Conference on Semantic Computing, {ICSC} 2021, Laguna Hills, CA, USA, January 27-29, 2021, {IEEE}, 2021, pp. 298–305.
LibreCat | DOI
 

2021 | Journal Article | LibreCat-ID: 25209
A shallow neural model for relation prediction
C. Demir, D. Moussallem, A.-C. Ngonga Ngomo, CoRR abs/2101.09090 (2021).
LibreCat
 

2021 | Journal Article | LibreCat-ID: 25210
A Survey of RDF Stores \& SPARQL Engines for Querying Knowledge Graphs
W. Ali, M. Saleem, B. Yao, A. Hogan, A.-C. Ngonga Ngomo, CoRR abs/2102.13027 (2021).
LibreCat
 

2021 | Journal Article | LibreCat-ID: 25211
Knowledge Graph Question Answering using Graph-Pattern Isomorphism
D. Vollmers, R. Jalota, D. Moussallem, H. Topiwala, A.-C. Ngonga Ngomo, R. Usbeck, CoRR abs/2103.06752 (2021).
LibreCat
 

2021 | Journal Article | LibreCat-ID: 25213
MLCheck- Property-Driven Testing of Machine Learning Models
A. Sharma, C. Demir, A.-C. Ngonga Ngomo, H. Wehrheim, CoRR abs/2105.00741 (2021).
LibreCat
 

2021 | Journal Article | LibreCat-ID: 25214
Open Data Portal Germany (OPAL) Projektergebnisse
A. Wilke, A.-C. Ngonga Ngomo, CoRR abs/2105.03161 (2021).
LibreCat
 

2021 | Journal Article | LibreCat-ID: 25215
Out-of-Vocabulary Entities in Link Prediction
C. Demir, A.-C. Ngonga Ngomo, CoRR abs/2105.12524 (2021).
LibreCat
 

2021 | Journal Article | LibreCat-ID: 25217
DRILL- Deep Reinforcement Learning for Refinement Operators in ALC
C. Demir, A.-C. Ngonga Ngomo, CoRR abs/2106.15373 (2021).
LibreCat
 

2021 | Conference Paper | LibreCat-ID: 28350
MLCHECK–Property-Driven Testing of Machine Learning Classifiers
A. Sharma, C. Demir, A.-C. Ngonga Ngomo, H. Wehrheim, in: Proceedings of the 20th IEEE International Conference on Machine Learning and Applications (ICMLA), IEEE, n.d.
LibreCat
 

2021 | Journal Article | LibreCat-ID: 24719
I-AID: Identifying Actionable Information From Disaster-Related Tweets
H. M. Zahera, R. Jalota, M. Ahmed Sherif, A.-C. Ngonga Ngomo, {IEEE} Access 9 (2021) 118861–118870.
LibreCat | DOI
 

2021 | Journal Article | LibreCat-ID: 24720
Knowledge Graphs
A. Hogan, E. Blomqvist, M. Cochez, C. d’Amato, G. de Melo, C. Guti{\’{e}}rrez, S. Kirrane, J. Emilio Labra Gayo, R. Navigli, S. Neumaier, A.-C. Ngonga Ngomo, A. Polleres, S. M. Rashid, A. Rula, L. Schmelzeisen, J. F. Sequeda, S. Staab, A. Zimmermann, {ACM} Comput. Surv. 54 (2021) 71:1-71:37.
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 29486
GATES: Using Graph Attention Networks for Entity Summarization
A.F. Firmansyah, D. Moussallem, A.-C. Ngonga Ngomo, in: Proceedings of the 11th on Knowledge Capture Conference, ACM, Virtual Event, USA, 2021, pp. 73–80.
LibreCat | DOI
 

2021 | Book Chapter | LibreCat-ID: 29292 | OA
Drift Detection in Text Data with Document Embeddings
R. Feldhans, A. Wilke, S. Heindorf, M.H. Shaker, B. Hammer, A.-C. Ngonga Ngomo, E. Hüllermeier, in: Intelligent Data Engineering and Automated Learning – IDEAL 2021, Springer International Publishing, Cham, 2021.
LibreCat | Files available | DOI | Download (ext.)
 

2021 | Conference Paper | LibreCat-ID: 29287 | OA
Convolutional Hypercomplex Embeddings for Link Prediction
C. Demir, D. Moussallem, S. Heindorf, A.-C. Ngonga Ngomo, in: The 13th Asian Conference on Machine Learning, ACML 2021, 2021.
LibreCat | Download (ext.) | arXiv
 

2021 | Journal Article | LibreCat-ID: 24456 | OA
Explanation as a Social Practice: Toward a Conceptual Framework for the Social Design of AI Systems
K.J. Rohlfing, P. Cimiano, I. Scharlau, T. Matzner, H.M. Buhl, H. Buschmeier, E. Esposito, A. Grimminger, B. Hammer, R. Haeb-Umbach, I. Horwath, E. Hüllermeier, F. Kern, S. Kopp, K. Thommes, A.-C. Ngonga Ngomo, C. Schulte, H. Wachsmuth, P. Wagner, B. Wrede, IEEE Transactions on Cognitive and Developmental Systems 13 (2021) 717–728.
LibreCat | Files available | DOI
 

2021 | Journal Article | LibreCat-ID: 25212
An Empirical Evaluation of Cost-based Federated SPARQL Query Processing Engines
U. Qudus, M. Saleem, A.-C. Ngonga Ngomo, Y.-K. Lee, Semantic Web 12 (n.d.) 843–868.
LibreCat | Files available | DOI
 

2021 | Book Chapter | LibreCat-ID: 54587
When is the Peak Performance Reached? An Analysis of RDF Triple Stores
H. Khan, A. Manzoor, A.-C. Ngonga Ngomo, M. Saleem, in: Studies on the Semantic Web, IOS Press, 2021.
LibreCat | DOI
 

2021 | Book Chapter | LibreCat-ID: 54586
Unsupervised Relation Extraction Using Sentence Encoding
A. Manzoor, M. Saleem, A.-C. Ngonga Ngomo, in: The Semantic Web: ESWC 2021 Satellite Events, Springer International Publishing, Cham, 2021.
LibreCat | DOI
 

2021 | Journal Article | LibreCat-ID: 29004
LIMES - A Framework for Link Discovery on the Semantic Web
A.-C. Ngonga Ngomo, M. Sherif, K. Georgala, M. Hassan, K. Dreßler, K. Lyko, D. Obraczka, T. Soru, KI - K{\"u}nstliche Intelligenz, German Journal of Artificial Intelligence - Organ Des Fachbereichs “Künstliche Intelligenz” Der Gesellschaft Für Informatik e.V. (2021).
LibreCat | DOI
 

2021 | Conference Paper | LibreCat-ID: 29043
I-AID: Identifying Actionable Information from Disaster-related Tweets
H.M.A. Zahera, R. Jalota, M. Sherif, A.-C. Ngonga Ngomo, in: IEEE Open Access, 2021.
LibreCat
 

2021 | Journal Article | LibreCat-ID: 29005
Multilingual Verbalization and Summarization for Explainable Link Discovery
A. Fathi Ahmed, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo, Data & Knowledge Engineering (2021) 101874.
LibreCat | DOI
 

2020 | Journal Article | LibreCat-ID: 25326
HOBBIT: A platform for benchmarking Big Linked Data
M. Röder, D. Kuchelev, A.-C. Ngonga Ngomo, Data Sci. 3 (2020) 15–35.
LibreCat | DOI
 

2020 | Conference Paper | LibreCat-ID: 25328
Squirrel - Crawling RDF Knowledge Graphs on the Web
M. Röder, G. de Souza, A.-C. Ngonga Ngomo, in: J. Z. Pan, V. A. M. Tamma, C. d’Amato, K. Janowicz, B. Fu, A. Polleres, O. Seneviratne, L. Kagal (Eds.), The Semantic Web - {ISWC} 2020 - 19th International Semantic Web Conference, Athens, Greece, November 2-6, 2020, Proceedings, Part {II}, Springer, 2020, pp. 34–47.
LibreCat | DOI
 

2020 | Conference Paper | LibreCat-ID: 25333
Applying edge-counting semantic similarities to link discovery: scalability and accuracy
K. Georgala, M. Ahmed Sherif, M. Röder, A.-C. Ngonga Ngomo, in: P. Shvaiko, J. Euzenat, E. Jimenez-Ruiz, O. Hassanzadeh, C. Trojahn (Eds.), 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, CEUR-WS.org, 2020, pp. 36–47.
LibreCat
 

2020 | Conference Paper | LibreCat-ID: 25340
LIGON - link discovery with noisy oracles
M. Ahmed Sherif, K. Dreßler, A.-C. Ngonga Ngomo, in: P. Shvaiko, J. Euzenat, E. Jimenez-Ruiz, O. Hassanzadeh, C. Trojahn (Eds.), 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, CEUR-WS.org, 2020, pp. 48–59.
LibreCat
 

2020 | Conference Paper | LibreCat-ID: 25341
Tentris - A Tensor-Based Triple Store
A. Bigerl, F. Conrads, C. Behning, M. Ahmed Sherif, M. Saleem, A.-C. Ngonga Ngomo, in: J. Z. Pan, V. A. M. Tamma, C. d’Amato, K. Janowicz, B. Fu, A. Polleres, O. Seneviratne, L. Kagal (Eds.), The Semantic Web - {ISWC} 2020 - 19th International Semantic Web Conference, Athens, Greece, November 2-6, 2020, Proceedings, Part {I}, Springer, 2020, pp. 56–73.
LibreCat | DOI
 

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