Axel-Cyrille Ngonga Ngomo

ORCID

Publication Activity (10 Years)

Years Active: 2007-2024
Publications (10 Years): 269

Top Venues

University of Leipzig (PHD)

Education History

University of Leipzig

PHD

Publications

Louis Mozart Kamdem, Caglar Demir, Axel-Cyrille Ngonga Ngomo
Embedding Knowledge Graphs in Degenerate Clifford Algebras. CoRR (2024)
Claus Stadler, Muhammad Saleem, Qaiser Mehmood, Carlos Buil Aranda, Michel Dumontier, Aidan Hogan, Axel-Cyrille Ngonga Ngomo
LSQ 2.0: A linked dataset of SPARQL query logs. Semantic Web 15 (1) (2024)
Manzoor Ali, Muhammad Saleem, Diego Moussallem, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo
RELD: A Knowledge Graph of Relation Extraction Datasets. ESWC (2023)
Nikolaos Karalis, Alexander Bigerl, Axel-Cyrille Ngonga Ngomo
Native Execution of GraphQL Queries over RDF Graphs Using Multi-Way Joins. SEMANTiCS (2023)
Pere-Lluís Huguet Cabot, Simone Tedeschi, Axel-Cyrille Ngonga Ngomo, Roberto Navigli
: a Filtered and Multilingual Relation Extraction Dataset. ACL (1) (2023)
Umair Qudus, Michael Röder, Sabrina Kirrane, Axel-Cyrille Ngonga Ngomo
TemporalFC: A Temporal Fact Checking Approach over Knowledge Graphs. ISWC (2023)
N'Dah Jean Kouagou, Caglar Demir, Hamada M. Zahera, Adrian Wilke, Stefan Heindorf, Jiayi Li, Axel-Cyrille Ngonga Ngomo
Universal Knowledge Graph Embeddings. CoRR (2023)
Caglar Demir, Michel Wiebesiek, Renzhong Lu, Axel-Cyrille Ngonga Ngomo, Stefan Heindorf
LitCQD: Multi-hop Reasoning in Incomplete Knowledge Graphs with Numeric Literals. ECML/PKDD (3) (2023)
Nikit Srivastava, Aleksandr Perevalov, Denis Kuchelev, Diego Moussallem, Axel-Cyrille Ngonga Ngomo, Andreas Both
Lingua Franca - Entity-Aware Machine Translation Approach for Question Answering over Knowledge Graphs. K-CAP (2023)
Manzoor Ali, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo
Unsupervised Relation Extraction with Sentence level Distributional Semantics. ICSC (2023)
Michael Röder, Denis Kuchelev, Axel-Cyrille Ngonga Ngomo
A Topic Model for the Data Web. KGSWC (2023)
N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo
Neural Class Expression Synthesis. ESWC (2023)
Leonie Nora Sieger, Stefan Heindorf, Lukas Blübaum, Axel-Cyrille Ngonga Ngomo
Counterfactual Explanations for Concepts in ELH. CoRR (2023)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
Learning Permutation-Invariant Embeddings for Description Logic Concepts. IDA (2023)
N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo
Neural Class Expression Synthesis. NeSy (2023)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
Learning Permutation-Invariant Embeddings for Description Logic Concepts. CoRR (2023)
Ria Hari Gusmita, Asep Fajar Firmansyah, Diego Moussallem, Axel-Cyrille Ngonga Ngomo
IndQNER: Named Entity Recognition Benchmark Dataset from the Indonesian Translation of the Quran. NLDB (2023)
Abdullah Fathi Ahmed, Asep Fajar Firmansyah, Mohamed Ahmed Sherif, Diego Moussallem, Axel-Cyrille Ngonga Ngomo
Explainable Integration of Knowledge Graphs Using Large Language Models. NLDB (2023)
Yasir Mahmood, Jonni Virtema, Timon Barlag, Axel-Cyrille Ngonga Ngomo
Computing Repairs Under Functional and Inclusion Dependencies via Argumentation. CoRR (2023)
Abdullah Fathi Ahmed, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo
COBALT: A Content-Based Similarity Approach for Link Discovery over Geospatial Knowledge Graphs. SEMANTiCS (2023)
Adrian Wilke, Axel-Cyrille Ngonga Ngomo
LauNuts: A Knowledge Graph to Identify and Compare Geographic Regions in the European Union. ESWC (2023)
N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo
. ECML/PKDD (4) (2023)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
Neuro-Symbolic Class Expression Learning. IJCAI (2023)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
Clifford Embeddings - A Generalized Approach for Embedding in Normed Algebras. ECML/PKDD (3) (2023)
Pere-Lluís Huguet Cabot, Simone Tedeschi, Axel-Cyrille Ngonga Ngomo, Roberto Navigli
: a Filtered and Multilingual Relation Extraction Dataset. CoRR (2023)
Hamada M. Zahera, Fedor Vitiugin, Mohamed Ahmed Sherif, Carlos Castillo, Axel-Cyrille Ngonga Ngomo
Using Pre-Trained Language Models for Abstractive DBPEDIA Summarization: A Comparative Study. SEMANTiCS (2023)
Caglar Demir, Michel Wiebesiek, Renzhong Lu, Axel-Cyrille Ngonga Ngomo, Stefan Heindorf
LitCQD: Multi-Hop Reasoning in Incomplete Knowledge Graphs with Numeric Literals. CoRR (2023)
Abdullah Fathi Ahmed, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo
NELLIE: Never-Ending Linking for Linked Open Data. IEEE Access 11 (2023)
Hamada M. Zahera, Stefan Heindorf, Stefan Balke, Jonas Haupt, Martin Voigt, Carolin Walter, Fabian Witter, Axel-Cyrille Ngonga Ngomo
Tab2Onto: Unsupervised Semantification with Knowledge Graph Embeddings. ESWC (Satellite Events) (2022)
Stefan Heindorf, Lukas Blübaum, Nick Düsterhus, Till Werner, Varun Nandkumar Golani, Caglar Demir, Axel-Cyrille Ngonga Ngomo
EvoLearner: Learning Description Logics with Evolutionary Algorithms. WWW (2022)
Alexander Bigerl, Lixi Conrads, Charlotte Behning, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo
Hashing the Hypertrie: Space- and Time-Efficient Indexing for SPARQL in Tensors. ISWC (2022)
Kevin Dreßler, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo
ADAGIO - Automated Data Augmentation of Knowledge Graphs Using Multi-expression Learning. HT (2022)
Claus Stadler, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo
LSQ Framework: The LSQ Framework for SPARQL Query Log Processing. QuWeDa@ISWC (2022)
Manzoor Ali, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo
REBench: Microbenchmarking Framework for Relation Extraction Systems. ISWC (2022)
Caglar Demir, Julian Lienen, Axel-Cyrille Ngonga Ngomo
Kronecker Decomposition for Knowledge Graph Embeddings. CoRR (2022)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
Hardware-agnostic computation for large-scale knowledge graph embeddings. Softw. Impacts 13 (2022)
Caglar Demir, Julian Lienen, Axel-Cyrille Ngonga Ngomo
Kronecker Decomposition for Knowledge Graph Embeddings. HT (2022)
Umair Qudus, Michael Röder, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo
HybridFC: A Hybrid Fact-Checking Approach for Knowledge Graphs. ISWC (2022)
Waqas Ali, Muhammad Saleem, Bin Yao, Aidan Hogan, Axel-Cyrille Ngonga Ngomo
A survey of RDF stores & SPARQL engines for querying knowledge graphs. VLDB J. 31 (3) (2022)
Aleksandr Perevalov, Axel-Cyrille Ngonga Ngomo, Andreas Both
Enhancing the Accessibility of Knowledge Graph Question Answering Systems through Multilingualization. ICSC (2022)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
Hardware-agnostic Computation for Large-scale Knowledge Graph Embeddings. CoRR (2022)
Caglar Demir, Anna Himmelhuber, Yushan Liu, Alexander Bigerl, Diego Moussallem, Axel-Cyrille Ngonga Ngomo
Rapid Explainability for Skill Description Learning. ISWC (Posters/Demos/Industry) (2022)
Muhammad Saleem, Adnan Akhter, Sahar Vahdati, Axel-Cyrille Ngonga Ngomo
μ-Bench: Real-world Micro Benchmarking for SPARQL Query Processing over Knowledge Graphs. IJCKG (2022)
N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo
Learning Concept Lengths Accelerates Concept Learning in ALC. ESWC (2022)
Hamada M. Zahera, Daniel Vollmers, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo
MultPAX: Keyphrase Extraction Using Language Models and Knowledge Graphs. ISWC (2022)
Aleksandr Perevalov, Andreas Both, Dennis Diefenbach, Axel-Cyrille Ngonga Ngomo
Can Machine Translation be a Reasonable Alternative for Multilingual Question Answering Systems over Knowledge Graphs? WWW (2022)
Alexander Bondarenko, Magdalena Wolska, Stefan Heindorf, Lukas Blübaum, Axel-Cyrille Ngonga Ngomo, Benno Stein, Pavel Braslavski, Matthias Hagen, Martin Potthast
CausalQA: A Benchmark for Causal Question Answering. COLING (2022)
Waqas Ali, Muhammad Saleem, Bin Yao, Aidan Hogan, Axel-Cyrille Ngonga Ngomo
A Survey of RDF Stores & SPARQL Engines for Querying Knowledge Graphs. CoRR (2021)
Umair Qudus, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Young-Koo Lee
An Empirical Evaluation of Cost-based Federated SPARQL Query Processing Engines. CoRR (2021)
Stefan Heindorf, Lukas Blübaum, Nick Düsterhus, Till Werner, Varun Nandkumar Golani, Caglar Demir, Axel-Cyrille Ngonga Ngomo
EvoLearner: Learning Description Logics with Evolutionary Algorithms. CoRR (2021)
Arnab Sharma, Caglar Demir, Axel-Cyrille Ngonga Ngomo, Heike Wehrheim
MLCHECK- Property-Driven Testing of Machine Learning Classifiers. ICMLA (2021)
Caglar Demir, Diego Moussallem, Axel-Cyrille Ngonga Ngomo
A shallow neural model for relation prediction. ICSC (2021)
Arnab Sharma, Caglar Demir, Axel-Cyrille Ngonga Ngomo, Heike Wehrheim
MLCheck- Property-Driven Testing of Machine Learning Models. CoRR (2021)
Ana Alexandra Morim da Silva, Michael Röder, Axel-Cyrille Ngonga Ngomo
Using Compositional Embeddings for Fact Checking. ISWC (2021)
Hashim Khan, Manzoor Ali, Axel-Cyrille Ngonga Ngomo, Muhammad Saleem
When is the Peak Performance Reached? An Analysis of RDF Triple Stores. SEMANTiCS (2021)
Michael Röder, Philip Frerk, Felix Conrads, Axel-Cyrille Ngonga Ngomo
Applying Grammar-Based Compression to RDF. ESWC (2021)
Aidan Hogan, Eva Blomqvist, Michael Cochez, Claudia d'Amato, Gerard de Melo, Claudio Gutiérrez, Sabrina Kirrane, José Emilio Labra Gayo, Roberto Navigli, Sebastian Neumaier, Axel-Cyrille Ngonga Ngomo, Axel Polleres, Sabbir M. Rashid, Anisa Rula, Lukas Schmelzeisen, Juan F. Sequeda, Steffen Staab, Antoine Zimmermann
Knowledge Graphs. ACM Comput. Surv. 54 (4) (2021)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
DRILL- Deep Reinforcement Learning for Refinement Operators in ALC. CoRR (2021)
Caglar Demir, Diego Moussallem, Stefan Heindorf, Axel-Cyrille Ngonga Ngomo
Convolutional Hypercomplex Embeddings for Link Prediction. CoRR (2021)
Umair Qudus, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Young-Koo Lee
An empirical evaluation of cost-based federated SPARQL query processing engines. Semantic Web 12 (6) (2021)
Michael Röder, Pham Thuy Sy Nguyen, Felix Conrads, Ana Alexandra Morim da Silva, Axel-Cyrille Ngonga Ngomo
Lemming - Example-based Mimicking of Knowledge Graphs. ICSC (2021)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
Convolutional Complex Knowledge Graph Embeddings. ESWC (2021)
N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo
Prediction of concept lengths for fast concept learning in description logics. CoRR (2021)
Michael Röder, Geraldo de Souza, Denis Kuchelev, Abdelmoneim Amer Desouki, Axel-Cyrille Ngonga Ngomo
ORCA - a Benchmark for Data Web Crawlers. ICSC (2021)
Adrian Wilke, Arwa Bannoura, Axel-Cyrille Ngonga Ngomo
Relicensing Combined Datasets. ICSC (2021)
Adrian Wilke, Axel-Cyrille Ngonga Ngomo
Open Data Portal Germany (OPAL) Projektergebnisse. CoRR (2021)
Asep Fajar Firmansyah, Diego Moussallem, Axel-Cyrille Ngonga Ngomo
GATES: Using Graph Attention Networks for Entity Summarization. K-CAP (2021)
Rricha Jalota, Daniel Vollmers, Diego Moussallem, Axel-Cyrille Ngonga Ngomo
LAUREN - Knowledge Graph Summarization for Question Answering. ICSC (2021)
Moemmur Shahzad, Ayesha Amin, Diego Esteves, Axel-Cyrille Ngonga Ngomo
InferNER: an attentive model leveraging the sentence-level information for Named Entity Recognition in Microblogs. FLAIRS Conference (2021)
Abdelmoneim Amer Desouki, Felix Conrads, Michael Röder, Axel-Cyrille Ngonga Ngomo
SYNTHG: Mimicking RDF Graphs Using Tensor Factorization. ICSC (2021)
Hamada M. Zahera, Rricha Jalota, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo
I-AID: Identifying Actionable Information From Disaster-Related Tweets. IEEE Access 9 (2021)
Adnan Akhter, Muhammad Saleem, Alexander Bigerl, Axel-Cyrille Ngonga Ngomo
Efficient RDF Knowledge Graph Partitioning Using Querying Workload. K-CAP (2021)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
Out-of-Vocabulary Entities in Link Prediction. CoRR (2021)
Axel-Cyrille Ngonga Ngomo, Mohamed Ahmed Sherif, Kleanthi Georgala, Mofeed Mohamed Hassan, Kevin Dreßler, Klaus Lyko, Daniel Obraczka, Tommaso Soru
LIMES: A Framework for Link Discovery on the Semantic Web. Künstliche Intell. 35 (3) (2021)
Abdullah Fathi Ahmed, Mohamed Ahmed Sherif, Diego Moussallem, Axel-Cyrille Ngonga Ngomo
Multilingual Verbalization and Summarization for Explainable Link Discovery. Data Knowl. Eng. 133 (2021)
René Speck, Diego Moussallem, Axel-Cyrille Ngonga Ngomo
Twitter Network Mimicking for Data Storage Benchmarking. ICSC (2021)
Manzoor Ali, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo
Unsupervised Relation Extraction Using Sentence Encoding. ESWC (Satellite Events) (2021)
Caglar Demir, Diego Moussallem, Stefan Heindorf, Axel-Cyrille Ngonga Ngomo
Convolutional Hypercomplex Embeddings for Link Prediction. ACML (2021)
Ram G. Athreya, Srividya Kona Bansal, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck
Template-based Question Answering using Recursive Neural Networks. ICSC (2021)
Daniel Vollmers, Rricha Jalota, Diego Moussallem, Hardik Topiwala, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck
Knowledge Graph Question Answering Using Graph-Pattern Isomorphism. SEMANTiCS (2021)
Robert Feldhans, Adrian Wilke, Stefan Heindorf, Mohammad Hossein Shaker, Barbara Hammer, Axel-Cyrille Ngonga Ngomo, Eyke Hüllermeier
Drift Detection in Text Data with Document Embeddings. IDEAL (2021)
Caglar Demir, Diego Moussallem, Axel-Cyrille Ngonga Ngomo
A shallow neural model for relation prediction. CoRR (2021)
Daniel Vollmers, Rricha Jalota, Diego Moussallem, Hardik Topiwala, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck
Knowledge Graph Question Answering using Graph-Pattern Isomorphism. CoRR (2021)
N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo
Neural Class Expression Synthesis. CoRR (2021)
Nandana Mihindukulasooriya, Mohnish Dubey, Alfio Gliozzo, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck, Gaetano Rossiello, Uttam Kumar
Semantic Answer Type and Relation Prediction Task (SMART 2021). CoRR (2021)
Katharina J. Rohlfing, Philipp Cimiano, Ingrid Scharlau, Tobias Matzner, Heike M. Buhl, Hendrik Buschmeier, Elena Esposito, Angela Grimminger, Barbara Hammer, Reinhold Häb-Umbach, Ilona Horwath, Eyke Hüllermeier, Friederike Kern, Stefan Kopp, Kirsten Thommes, Axel-Cyrille Ngonga Ngomo, Carsten Schulte, Henning Wachsmuth, Petra Wagner, Britta Wrede
Explanation as a Social Practice: Toward a Conceptual Framework for the Social Design of AI Systems. IEEE Trans. Cogn. Dev. Syst. 13 (3) (2021)
Hamada M. Zahera, Stefan Heindorf, Axel-Cyrille Ngonga Ngomo
ASSET: A Semi-supervised Approach for Entity Typing in Knowledge Graphs. K-CAP (2021)
Stefan Heindorf, Yan Scholten, Henning Wachsmuth, Axel-Cyrille Ngonga Ngomo, Martin Potthast
CauseNet: Towards a Causality Graph Extracted from the Web. CIKM (2020)
Kleanthi Georgala, Mohamed Ahmed Sherif, Michael Röder, Axel-Cyrille Ngonga Ngomo
Applying edge-counting semantic similarities to link discovery: scalability and accuracy. OM@ISWC (2020)
Michael Röder, Mohamed Ahmed Sherif, Muhammad Saleem, Felix Conrads, Axel-Cyrille Ngonga Ngomo
Benchmarking Knowledge Graphs on the Web. CoRR (2020)
Xinyue Zhang, Meng Wang, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Guilin Qi, Haofen Wang
Revealing Secrets in SPARQL Session Level. ISWC (1) (2020)
Xinyue Zhang, Meng Wang, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Guilin Qi, Haofen Wang
Revealing Secrets in SPARQL Session Level. CoRR (2020)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
Convolutional Complex Knowledge Graph Embeddings. CoRR (2020)
Michael Röder, Geraldo de Souza, Axel-Cyrille Ngonga Ngomo
Squirrel - Crawling RDF Knowledge Graphs on the Web. ISWC (2) (2020)
Diego Moussallem, Dwaraknath Gnaneshwar, Thiago Castro Ferreira, Axel-Cyrille Ngonga Ngomo
NABU - Multilingual Graph-Based Neural RDF Verbalizer. ISWC (1) (2020)
Hamada M. Zahera, Rricha Jalota, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo
I-AID: Identifying Actionable Information from Disaster-related Tweets. CoRR (2020)
Caglar Demir, Axel-Cyrille Ngonga Ngomo
A Physical Embedding Model for Knowledge Graphs. CoRR (2020)
Ram G. Athreya, Srividya Kona Bansal, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck
Template-based Question Answering using Recursive Neural Networks. CoRR (2020)
Nandana Mihindukulasooriya, Mohnish Dubey, Alfio Gliozzo, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck
SeMantic AnsweR Type prediction task (SMART) at ISWC 2020 Semantic Web Challenge. CoRR (2020)
Waqas Ali, Muhammad Saleem, Bin Yao, Aidan Hogan, Axel-Cyrille Ngonga Ngomo
Storage, Indexing, Query Processing, and Benchmarking in Centralized and Distributed RDF Engines: A Survey. CoRR (2020)

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Publication Activity (10 Years)

Top Topics

Top Venues

Axel-Cyrille Ngonga Ngomo