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Prof. Dr. Axel-Cyrille Ngonga Ngomo

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F1.225

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Publications

ELEVATE-ID: Extending Large Language Models for End-to-End Entity Linking Evaluation in Indonesian

By Ria Hari Gusmita, Asep Fajar Firmansyah, Hamada M. Zahera, Axel-Cyrille Ngonga Ngomo

Data & Knowledge Engineering, 2026, #article

Contextual Augmentation for Entity Linking using Large Language Models

By Daniel Vollmers, Hamada M. Zahera, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

COLING 2025, 2025, #article

Dung's Argumentation Framework: Unveiling the Expressive Power with Inconsistent Databases

By Yasir Mahmood, Markus Hecher, Axel-Cyrille Ngonga Ngomo

AAAI-25, Sponsored by the Association for the Advancement of Artificial Intelligence, February 25 - March 4, 2025, Philadelphia, PA, USA, 2025, #inproceedings

ANTS: Abstractive Entity Summarization in Knowledge Graphs

By Asep Fajar Firmansyah, Hamada M. Zahera, Mohamed Ahmed Sherif, Diego and Moussallem, Axel-Cyrille Ngonga Ngomo

Semantic Web – 22nd International Conference, ESWC 2025, Portoroz, Slovenia, June 1-5, 2025, Proceedings, 2025, #inproceedings

Fact Checking Knowledge Graphs - A Survey

By Umair Qudus, Michael Röder, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

ACM Comput. Surv., 2025, #article

Ontolearn---A Framework for Large-scale OWL Class Expression Learning in Python

By Caglar Demir, Alkid Baci, N'Dah Jean Kouagou, Leonie Nora Sieger, Stefan Heindorf, Simon Bin, Lukas Blübaum, Alexander Bigerl, Axel-Cyrille Ngonga Ngomo

Journal of Machine Learning Research, JMLR, 2025, #article

Evaluating Approximate Nearest Neighbour Search Systems on Knowledge Graph Embeddings

By Gaurav Pandit, Michael Röder, Axel-Cyrille Ngonga Ngomo

Semantic Web – 22nd International Conference, ESWC 2025, Portoroz, Slovenia, June 1-5, 2025, Proceedings, 2025, #inproceedings

GLIDE: Knowledge Graph Linking using Distance-Aware Embeddings

By Alexander Becker, Axel-Cyrille Ngonga Ngomo, Mohamed Ahmed Sherif

The Semantic Web -- ISWC 2025, 2025, #inproceedings

Multilingual Relation Extraction: A Survey

By Manzoor Ali, René Speck, Hamada M. Zahera, Muhammad Saleem, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

IEEE Access, 2025, #article

Benchmarking Knowledge Editing using Logical Rules

By Tatiana Moteu Ngoli, N'Dah Jean Kouagou, Hamada M. Zahera, Axel-Cyrille Ngonga Ngomo

The Semantic Web -- ISWC 2025, 2025, #inproceedings

LOLA - An Open-Source Massively Multilingual Large Language Model

By Nikit Srivastava, Denis Kuchelev, Tatiana Moteu Ngoli, Kshitij Shetty, Michael Röder, Hamada M. Zahera, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

Proceedings of the 31st International Conference on Computational Linguistics, COLING 2025, Abu Dhabi, UAE, January 19-24, 2025, 2025, #inproceedings

ESLM: Improving Entity Summarization by Leveraging Language Models

By Asep Fajar Firmansyah, Diego Mousallem, Axel-Cyrille Ngonga Ngomo

The Semantic Web, 2024, #inproceedings

FaVEL: Fact Validation Ensemble Learning

By Umair Qudus, Franck Lionel Tatkeu Pekarou, Ana Alexandra Morim da Silva, Michael Röder, Axel-Cyrille Ngonga Ngomo

Knowledge Engineering and Knowledge Management - 24th International Conference, EKAW 2024, Amsterdam, The Netherlands, November 26-28, 2024, Proceedings, 2024, #inproceedings

ROCES: Robust Class Expression Synthesis in Description Logics via Iterative Sampling

By N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo

Proceedings of the Thirty-Third International Joint Conference on Artificial Intelligence, IJCAI-24, 2024, #inproceedings

AutoCL: AutoML for Concept Learning

By Jiayi Li, Sheetal Satheesh, Stefan Heindorf, Diego Moussallem, René Speck, Axel-Cyrille Ngonga Ngomo

Explainable Artificial Intelligence, 2024, #inproceedings

IndEL: Indonesian Entity Linking Benchmark Dataset for General and Specific Domains

By Ria Hari Gusmita, Muhammad Faruq, Diego Mousallem, Axel-Cyrille Ngonga Ngomo

NLDB, 2024, #inproceedings

Evaluating Negation with Multi-way Joins Accelerates Class Expression Learning

By Nikolaos Karalis, Alexander Bigerl, Caglar Demir, Liss Heidrich, Axel-Cyrille Ngonga Ngomo

Machine Learning and Knowledge Discovery in Databases. Research Track - European Conference, ECML PKDD 2024, Vilnius, Lithuania, September 9-13, 2024, Proceedings, Part VI, 2024, #inproceedings

Efficient Evaluation of Conjunctive Regular Path Queries Using Multi-way Joins

By Nikolaos Karalis, Alexander Bigerl, Liss Heidrich, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

ESWC, 2024, #inproceedings

Error Analysis of Multilingual Language Models in Machine Translation: A Case Study of English-Amharic Translation

By Hizkiel Mitiku Alemayehu, Hamada M. Zahera, Axel-Cyrille Ngonga Ngomo

Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing, 2024, #inproceedings

Inference over Unseen Entities, Relations and Literals on Knowledge Graphs

By Caglar Demir, N'Dah Jean Kouagou, Arnab Sharma, Axel-Cyrille Ngonga Ngomo

ECAI Workshops, 2024, #inproceedings

Enhancing Relation Extraction Through Augmented Data: Large Language Models Unleashed

By Manzoor Ali, Muhammad Sohail Nisar, Muhammad Saleem, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

NLDB24, 2024, #inproceedings

Benchmarking Low-Resource Machine Translation Systems

By Ana Silva, Nikit Srivastava, Tatiana Moteu Ngoli, Michael Röder, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

Proceedings of the The Seventh Workshop on Technologies for Machine Translation of Low-Resource Languages (LoResMT 2024), 2024, #inproceedings

Universal Knowledge Graph Embeddings

By N'Dah Jean Kouagou, Caglar Demir, Hamada M. Zahera, Adrian Wilke, Stefan Heindorf, Jiayi Li, Axel-Cyrille Ngonga Ngomo

Companion Proceedings of the ACM on Web Conference 2024, 2024, #inproceedings

Embedding Knowledge Graphs in Degenerate Clifford Algebras

By Louis Mozart Kamdem Teyou, Caglar Demir, Axel-Cyrille Ngonga Ngomo

Proceedings of the 27TH EUROPEAN CONFERENCE ON ARTIFICIAL INTELLIGENCE, 2024, #inproceedings

MST5 -- Multilingual Question Answering over Knowledge Graphs

By Nikit Srivastava, Mengshi Ma, Daniel Vollmers, Hamada Zahera, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

To appear, 2024, #article

Enhancing Answers Verbalization using Large Language Models

By Daniel Vollmers, Parth Sharma, Hamada M. Zahera, Axel-Cyrille Ngonga Ngomo

SEMANTiCS2024, 2024, #inproceedings

ExPrompt: Augmenting Prompts Using Examples as Modern Baseline for Stance Classification

By Umair Qudus, Michael Röder, Daniel Vollmers, Axel-Cyrille Ngonga Ngomo

Conference on Information and Knowledge Management -- CIKM 2024, 2024, #inproceedings

BLINK: Blank Node Matching Using Embeddings

By Alexander Becker, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

The Semantic Web -- ISWC 2024, 2024, #inproceedings

Embedding Knowledge Graphs in Function Spaces

By Louis Mozart Kamdem Teyou, Caglar Demir, Axel-Cyrille Ngonga Ngomo

Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, 2024, #inproceedings

UniQ-Gen: Unified Query Generation across Multiple Knowledge Graphs

By Daniel Vollmers, Nikit Srivastava, Hamada M. Zahera, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

EKAW 2024, 2024, #inproceedings

Generating SPARQL from Natural Language Using Chain-of-Thoughts Prompting

By Hamada M. Zahera, Manzoor Ali, Mohamed Ahmed Sherif, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

Knowledge Graphs in the Age of Language Models and Neuro-Symbolic AI - Proceedings of the 20th International Conference on Semantic Systems (SEMANTiCS), 17-19 September 2024, Amsterdam, The Netherlands, 2024, #inproceedings

Computing Repairs Under Functional and Inclusion Dependencies via Argumentation

By Yasir Mahmood, Jonni Virtema, Timon Barlag, Axel-Cyrille Ngonga Ngomo

Foundations of Information and Knowledge Systems - 13th International Symposium, FoIKS 2024, Sheffield, UK, Proceedings, 2024, #inproceedings

Document reRanking using GAT-Cross Encoder

By Daniel Vollmers, Manzoor Ali, Hamada M. Zahera, Axel-Cyrille Ngonga Ngomo

To appear, 2024, #article

Efficient Updates for Worst-Case Optimal Join Triple Stores

By Alexander Bigerl, Liss Heidrich, Nikolaos Karalis, Axel-Cyrille Ngonga Ngomo

The Semantic Web -- ISWC 2024, 2024, #inproceedings

Neural Class Expression Synthesis (Extended Abstract)

By N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo

NeSy 2023, 17th International Workshop on Neural-Symbolic Learning and Reasoning, Certosa di Pontignano, Siena, Italy, 2023, #inproceedings

Using Pre-trained Language Models for Abstractive DBPEDIA Summarization: A Comparative Study

By Hamada M. Zahera, Fedor Vitiugin, Mohamed Ahmed Sherif, Carlos Castillo, Axel-Cyrille Ngonga Ngomo

SEMANTiCS, 2023, #inproceedings

A Topic Model for the Data Web

By Michael Röder, Denis Kuchelev, Axel-Cyrille Ngonga Ngomo

Knowledge Graphs and Semantic Web, 2023, #inproceedings

Subproject B2: Configuration and Evaluation

By Jonas Manuel Hanselle, Eyke Hüllermeier, Felix Mohr, Axel-Cyrille Ngonga Ngomo, Mohamed Ahmed Sherif, Alexander Tornede, Marcel Dominik Wever

On-The-Fly Computing -- Individualized IT-services in dynamic markets, 2023, #inbook

Lingua Franca - Entity-Aware Machine Translation Approach for Question Answering over Knowledge Graphs

By Nikit Srivastava, Aleksandr Perevalov, Denis Kuchelev, Diego Moussallem, Axel-Cyrille Ngonga Ngomo, Andreas Both

Proceedings of the 12th Knowledge Capture Conference 2023, K-CAP 2023, Pensacola, FL, USA, December 5-7, 2023, 2023, #inproceedings

Learning Permutation-Invariant Embeddings for Description Logic Concepts

By Caglar Demir, Axel-Cyrille Ngonga Ngomo

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, #inproceedings

LauNuts: A Knowledge Graph to identify and compare geographic regions in the European Union

By Adrian Wilke, Axel-Cyrille Ngonga Ngomo

The Semantic Web (ESWC 2023), 2023, #inproceedings

IngridKG: A FAIR Knowledge Graph of Graffiti

By Mohamed Ahmed Sherif, Ana Alexandra Morim da Silva, Svetlana Pestryakova, Abdullah Fathi Ahmed, Sven Niemann, Axel-Cyrille Ngonga Ngomo

Scientific Data, 2023, #article

Unsupervised Relation Extraction with Sentence level Distributional Semantics

By Manzoor Ali, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

ICSC, 2023, #inproceedings

IndQNER: Named Entity Recognition Benchmark Dataset from the Indonesian Translation of the Quran

By Ria Hari Gusmita, Asep Fajar Firmansyah, Diego Mousallem, Axel-Cyrille Ngonga Ngomo

Proceedings of 28th International Conference on Applications of Natural Language to Information Systems, NLDB, 2023, #inproceedings

Neuro-Symbolic Class Expression Learning

By Caglar Demir, Axel-Cyrille Ngonga Ngomo

The 32nd International Joint Conference on Artificial Intelligence, IJCAI 2023, 2023, #inproceedings

RELD: A Knowledge Graph of Relation Extraction Datasets

By Manzoor Ali, Muhammad Saleem, Diego Moussallem, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

ESWC, 2023, #inproceedings

Neural Class Expression Synthesis in ALCHIQ(D)

By N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo

Machine Learning and Knowledge Discovery in Databases, 2023, #inproceedings

TEMPORALFC: A Temporal Fact Checking approach over Knowledge Graphs

By Umair Qudus, Michael Röder, Sabrina Kirrane, Axel-Cyrille Ngonga Ngomo

The Semantic Web -- ISWC 2023, 2023, #inproceedings

COBALT: A Content-Based Similarity Approach for Link Discovery over Geospatial Knowledge Graphs

By Alexander Becker, Abdullah Ahmed, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

SEMANTiCS, 2023, #inproceedings

Neural Class Expression Synthesis

By N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo

The Semantic Web - 20th International Conference, ESWC 2023, Hersonissos, Crete, Greece, May 28 - June 1, 2023, Proceedings, 2023, #inproceedings

Explainable Integration of Knowledge Graphs using Large Language Models

By Abdullah Fathi Ahmed, Asep Fajar Firmansyah, Mohamed Ahmed Sherif, Diego Mousallem, Axel-Cyrille Ngonga Ngomo

Proceedings of 28th International Conference on Applications of Natural Language to Information Systems, NLDB, 2023, #inproceedings

REDFM: a Filtered and Multilingual Relation Extraction Dataset

By ‪Pere-Lluís Huguet Cabot, Simone Tedeschi, Axel-Cyrille Ngonga Ngomo, Roberto Navigli

Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), 2023, #inproceedings

NELLIE: Never-Ending Linking for Linked Open Data

By Abdullah Fathi Ahmed, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

IEEE ACCESS, 2023, #inproceedings

Clifford Embeddings – A Generalized Approach for Embedding in Normed Algebras

By Caglar Demir, Axel-Cyrille Ngonga Ngomo

European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, ECML PKDD 2023, 2023, #inproceedings

Native Execution of GraphQL Queries over RDF Graphs Using Multi-way Joins

By Nikolaos Karalis, Alexander Bigerl, Axel-Cyrille Ngonga Ngomo

SEMANTiCS, 2023, #inproceedings

Tab2Onto: Unsupervised Semantification with Knowledge Graph Embeddings

By Hamada M. Zahera, Stefan Heindorf, Stefan Balke, Jonas Haupt, Martin Voigt, Carolin Walter, Fabian Witter, Axel-Cyrille Ngonga Ngomo

ESWC, 2022, #inproceedings

CausalQA: A Benchmark for Causal Question Answering

By Alexander Bondarenko, Magdalena Wolska, Stefan Heindorf, Lukas Blübaum, Axel-Cyrille Ngonga Ngomo, Benno Stein, Pavel Braslavski, Matthias Hagen, Martin Potthast

COLING, 2022, #inproceedings

Hardware-agnostic computation for large-scale knowledge graph embeddings

By Caglar Demir, Axel-Cyrille Ngonga Ngomo

Software Impacts, 2022, #article

CovidPubGraph: A FAIR Knowledge Graph of COVID-19 Publications

By Svetlana Pestryakova, Daniel Vollmers, Mohamed Ahmed Sherif, Stefan Heindorf, Muhammad Saleem, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

Scientific Data, 2022, #article

HybridFC: A Hybrid Fact-Checking Approach for Knowledge Graphs

By Umair Qudus, Michael Röder, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

The Semantic Web -- ISWC 2022, 2022, #inproceedings

Hashing the Hypertrie: Space- and Time-Efficient Indexing for SPARQL in Tensors

By Alexander Bigerl, Lixi Conrads, Charlotte Behning, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

The Semantic Web -- ISWC 2022, 2022, #inproceedings

REBench: Microbenchmarking Framework for Relation Extraction Systems

By Manzoor Ali, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

ISWC, 2022, #inproceedings

EvoLearner: Learning Description Logics with Evolutionary Algorithms

By Stefan Heindorf, Lukas Blübaum, Nick D\usterhus, Till Werner, Varun Golani Nandkumar, Caglar Demir, Axel-Cyrille Ngonga Ngomo

WWW, 2022, #inproceedings

MultPAX: Keyphrase Extraction using Language Models and Knowledge Graphs

By Hamada M. Zahera, Daniel Vollmers, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

ISWC, 2022, #inproceedings

ADAGIO - Automated Data Augmentation of Knowledge Graphs Using Multi-expression Learning

By Kevin Dreßler, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

Proceedings of the 33rd ACM Conference on Hypertext and Hypermedia, 2022, #inproceedings

SynthG: Mimicking RDF Graphs Using Tensor Factorization

By Abdelmoneim Amer Desouki, Felix Conrads, Michael Röder, Axel-Cyrille Ngonga Ngomo

Proceedings of the 15th IEEE International Conference on Semantic Computing (ICSC), 2021, #inproceedings

Convolutional Hypercomplex Embeddings for Link Prediction

By Caglar Demir, Diego Moussallem, Stefan Heindorf, Axel-Cyrille Ngonga Ngomo

Asian Conference on Machine Learning, 2021, #inproceedings

Convolutional Complex Knowledge Graph Embeddings

By Caglar Demir, Axel-Cyrille Ngonga Ngomo

Eighteenth Extended Semantic Web Conference - Research Track, 2021, #inproceedings

I-AID: Identifying Actionable Information from Disaster-related Tweets

By Hamada M. Zahera, Rricha Jalota, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

IEEE Open Access, 2021, #inproceedings

Drift Detection in Text Data with Document Embeddings

By Robert Feldhans, Adrian Wilke, Stefan Heindorf, Mohammad Hossein Shaker, Barbara Hammer, Axel-Cyrille Ngonga Ngomo, Eyke Hüllermeier

Intelligent Data Engineering and Automated Learning -- IDEAL 2021, 2021, #inproceedings

ASSET: A Semi-supervised Approach for Entity Typing in Knowledge Graphs

By Hamada M. Zahera, Stefan Heindorf, Axel-Cyrille Ngonga Ngomo

K-CAP 2021: Knowledge Capture Conference, 2021, #inproceedings

LEMMING -- Example-based Mimicking of Knowledge Graphs

By Michael Röder, Pham Thuy Sy Nguyen, Felix Conrads, Ana Alexandra Morim da Silva, Axel-Cyrille Ngonga Ngomo

Proceedings of the 15th IEEE International Conference on Semantic Computing (ICSC), 2021, #inproceedings

An empirical evaluation of cost-based federated SPARQL query processing engines

By Umair Qudus, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Young-koo Lee

Semantic Web, 2021, #article

Using Compositional Embeddings for Fact Checking

By Ana Alexandra Morim da Silva, Michael Röder, Axel-Cyrille Ngonga Ngomo

The Semantic Web -- ISWC 2021, 2021, #inproceedings

GATES: Using Graph Attention Networks for Entity Summarization

By Asep Fajar Firmansyah, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

K-CAP '21: Proceedings of the 11th Knowledge Capture Conference, 2021, #inproceedings

Knowledge Graph Question Answering using Graph-Pattern Isomorphism

By Daniel Vollmers, Rricha Jalota, Diego Moussallem, Hardik Topiwala, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck

SEMANTiCS 2021, 2021, #article

LAUREN - Knowledge Graph Summarization for Question Answering

By Rricha Jalota, Daniel Vollmers, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

Proceedings of the 15th IEEE International Conference on Semantic Computing (ICSC 2021), 2021, #inproceedings

ORCA -- a Benchmark for Data Web Crawlers

By Michael Röder, Geraldo de Souza Jr., Denis Kuchelev, Abdelmoneim Amer Desouki, Axel-Cyrille Ngonga Ngomo

Proceedings of the 15th IEEE International Conference on Semantic Computing (ICSC), 2021, #inproceedings

Multilingual Verbalization and Summarization for Explainable Link Discovery

By Abdullah Fathi Ahmed, Mohamed Ahmed Sherif, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

Data & Knowledge Engineering, 2021, #article

LIMES - A Framework for Link Discovery on the Semantic Web

By Axel-Cyrille Ngonga Ngomo, Mohamed Ahmed Sherif, Kleanthi Georgala, Mofeed Hassan, Kevin Dreßler, Klaus Lyko, Daniel Obraczka, Tommaso Soru

KI - Künstliche Intelligenz, German Journal of Artificial Intelligence - Organ des Fachbereichs "Künstliche Intelligenz" der Gesellschaft für Informatik e.V., 2021, #article

Twitter Network Mimicking for Data Storage Benchmarking

By René Speck, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

Proceedings of the 15th IEEE International Conference on Semantic Computing (ICSC), 2021, #inproceedings

Unsupervised relation extraction using sentence encoding

By Manzoor Ali, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

ESWC2021 Poster and Demo Track, 2021, #inproceedings

A shallow neural model for relation prediction

By Caglar Demir, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

Proceedings of the 15th IEEE International Conference on Semantic Computing (ICSC 2021), 2021, #inproceedings

Applying Grammar-based Compression to RDF

By Michael Röder, Philip Frerk, Felix Conrads, Axel-Cyrille Ngonga Ngomo

Eighteenth Extended Semantic Web Conference - Research Track, 2021, #inproceedings

When is the Peak Performance Reached? An Analysis of RDF Triple Stores

By Hashim Khan, Manzoor Ali, Axel-Cyrille Ngonga Ngomo, Muhammad Saleem

SEMANTiCS 2021, 2021, #inproceedings

Efficient RDF Knowledge Graph Partitioning Using Querying Workload

By Adnan Akhter, Muhammad Saleem, Alexander Bigerl, Axel-Cyrille Ngonga Ngomo

Proceedings of the 11th on Knowledge Capture Conference, 2021, #inproceedings

Relicensing Combined Datasets

By Adrian Wilke, Arwa Bannoura, Axel-Cyrille Ngonga Ngomo

Proceedings of the 15th IEEE International Conference on Semantic Computing (ICSC 2021), 2021, #inproceedings

Storage, indexing, query processing, and benchmarking in centralized and distributed rdf engines: A survey

By Waqas Ali, Muhammad Saleem, Bin Yao, Aidan Hogan, Axel-Cyrille Ngonga Ngomo

arXiv preprint arXiv:2009.10331, 2020, #article

A Physical Embedding Model for Knowledge Graphs

By Caglar Demir, Axel-Cyrille Ngonga Ngomo

Semantic Technology, 2020, #inproceedings

Squirrel - Crawling RDF Knowledge Graphs on the Web

By Michael Röder, Geraldo de Souza Jr, Axel-Cyrille Ngonga Ngomo

The Semantic Web - ISWC 2020 - 19th International Semantic Web Conference, Athens, Greece, November 2-6, 2020, Proceedings, Part II, 2020, #inproceedings

Revealing Secrets in SPARQL Session Level

By Xinyue Zhang, Meng Wang, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Guilin Qi, Haofen Wang

International Semantic Web Conference, 2020, #inproceedings

LIGER -- Link Discovery with Partial Recall

By Kleanthi Georgala, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

Proceedings of Ontology Matching Workshop 2020, 2020, #inproceedings

CauseNet: Towards a Causality Graph Extracted from the Web

By Stefan Heindorf, Yan Scholten, Henning Wachsmuth, Axel-Cyrille Ngonga Ngomo, Martin Potthast

CIKM, 2020, #inproceedings

A General Benchmarking Framework for Text Generation

By Diego Moussallem, Paramjot Kaur, Thiago Ferreira, Chris van der Lee, Anastasia Shimorina, Felix Conrads, Michael Röder, René Speck, Claire Gardent, Simon Mille, Nikolai Ilinykh, Axel-Cyrille Ngonga Ngomo

Proceedings of the 3rd International Workshop on Natural Language Generation from the Semantic Web (WebNLG+), 2020, #inproceedings

Generating Explanations in Natural Language from Knowledge Graphs

By Diego Moussallem, René Speck, Axel-Cyrille Ngonga Ngomo

Knowledge Graphs for eXplainable Artificial Intelligence: Foundations, Applications and Challenges, 2020, #article

HOBBIT: A platform for benchmarking Big Linked Data

By Michael Röder, Denis Kuchelev, Axel-Cyrille Ngonga Ngomo

Data Science, 2020, #article

LIGON -- Link Discovery with Noisy Oracles

By Mohamed Ahmed Sherif, Kevin Dreßler, Axel-Cyrille Ngonga Ngomo

Proceedings of Ontology Matching Workshop 2020, 2020, #inproceedings

Applying edge-counting semantic similarities to Link Discovery: Scalability and Accuracy

By Kleanthi Georgala, Michael Röder, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

Proceedings of Ontology Matching Workshop 2020, 2020, #inproceedings

Tentris -- A Tensor-Based Triple Store

By Alexander Bigerl, Lixi Conrads, Charlotte Behning, Mohamed Ahmed Sherif, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

The Semantic Web -- ISWC 2020, 2020, #inproceedings

NABU - Multilingual Graph-Based Neural RDF Verbalizer

By Diego Moussallem, Dwaraknath Gnaneshwar, Thiago Castro Ferreira, Axel-Cyrille Ngonga Ngomo

The Semantic Web - ISWC 2020 - 19th International Semantic Web Conference, Athens, Greece, November 2-6, 2020, Proceedings, Part I, 2020, #inproceedings

Benchmarking knowledge graphs on the web

By Michael Röder, Mohamed Ahmed Sherif, Muhammad Saleem, Felix Conrads, Axel-Cyrille Ngonga Ngomo

arXiv preprint arXiv:2002.06039, 2020, #article

Benchmarking the Lifecycle of Knowledge Graphs

By Michael Röder, Mohamed Ahmed Sherif, Muhammad Saleem, Felix Conrads, Axel-Cyrille Ngonga Ngomo

Knowledge Graphs for eXplainable Artificial Intelligence: Foundations, Applications and Challenges, 2020, #inbook

A Holistic Natural Language Generation Framework for the Semantic Web

By Axel-Cyrille Ngonga Ngomo, Diego Moussallem, Lorenz Bühman

Proceedings of the International Conference Recent Advances in Natural Language Processing, 2019, #inproceedings

How Representative is a SPARQL Benchmark? An Analysis of RDF Triplestore Benchmarks

By Muhammad Saleem, Gábor Szárnyas, Felix Conrads, Syed Ahmad Chan Bukhari, Qaiser Mehmood, Axel-Cyrille Ngonga Ngomo

TheWebConf19 (WWW2019), 2019, #inproceedings

QPPDs: Querying Property Paths over Distributed RDF Datasets

By Qaiser Mehmood, Muhammad Saleem, Ratnesh Sahay, Axel-Cyrille Ngonga Ngomo, Mathieu D'Aquin

IEEE ACCESS, 2019, #inproceedings

Ranking on Very Large Knowledge Graphs

By Abdelmoneim Amer Desouki, Michael Röder, Axel-Cyrille Ngonga Ngomo

Proceedings of the 30th ACM Conference on Hypertext and Social Media, 2019, #inproceedings

COPAAL -- An Interface for Explaining Facts using Corroborative Paths

By Zafar Habeeb Syed, Nikit Srivastava, Michael Röder, Axel-Cyrille Ngonga Ngomo

Proceedings of the ISWC 2019 Satellite Tracks (Posters & Demonstrations, Industry, and Outrageous Ideas), 2019, #inproceedings

Microbenchmarks for Question AnsweringSystems Using QaldGen

By Qaiser Mehmood, Abhishek Nadgeri, Muhammad Saleem, Kuldeep Singh, Axel-Cyrille Ngonga Ngomo, Jens Lehmann

Demo at ISWC, 2019, #inproceedings

Benchmarking Question Answering Systems

By Ricardo Usbeck, Michael Röder, Michael Hoffmann, Felix Conrads, Jonathan Huthmann, Axel-Cyrille Ngonga Ngomo, Christian Demmler, Christina Unger

Semantic Web, 2019, #article

Jointly Learning from Social Media and Environmental Data for Typhoon Intensity Prediction

By Hamada M. Zahera, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

K-CAP 2019: Knowledge Capture Conference, 2019, #inproceedings

Unsupervised Discovery of Corroborative Paths for Fact Validation

By Zafar Habeeb Syed, Michael Röder, Axel-Cyrille Ngonga Ngomo

The Semantic Web -- ISWC 2019, 2019, #inproceedings

LimesWebUI -- Link Discovery Made Simple

By Mohamed Ahmed Sherif, Svetlana Pestryakova, Kevin Dreßler, Axel-Cyrille Ngonga Ngomo

18th International Semantic Web Conference (ISWC 2019), 2019, #inproceedings

An Approach for Ex-Post-Facto Analysis of Knowledge Graph-Driven Chatbots -- the DBpedia Chatbot

By Rricha Jalota, Priyansh Trivedi, Gaurav Maheshwari, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck

International Workshop on Chatbot Research and Design, 2019, #article

Qaldgen: Towards microbenchmarking of question answering systems over knowledge graphs

By Kuldeep Singh, Muhammad Saleem, Abhishek Nadgeri, Felix Conrads, Jeff Z Pan, Axel-Cyrille Ngonga Ngomo, Jens Lehmann

International Semantic Web Conference, 2019, #inproceedings

LSVS: Link Specification Verbalization and Summarization

By Abdullah Fathi Ahmed, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

24th International Conference on Applications of Natural Language to Information Systems (NLDB 2019), 2019, #inproceedings

QUANT - Question Answering Benchmark Curator

By Ria Hari Gusmita, Rricha Jalota, Daniel Vollmers, Jan Reineke, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck

Semantic Systems. The Power of AI and Knowledge Graphs, 2019, #inproceedings

Utilizing Knowledge Graphs for Neural Machine TranslationAugmentation

By Diego Moussallem, Axel-Cyrille Ngonga Ngomo, Paul Buitelaar, Mihael Arcan

K-CAP 2019: Knowledge Capture Conference, 2019, #inproceedings

Semantic Web for Machine Translation: Challenges and Directions

By Diego Moussallem, Matthias Wauer, Axel-Cyrille Ngonga Ngomo

International Semantic Web Conference, 2019, #inproceedings

Finding Datasets in Publications: The University of Paderborn Approach

By Rricha Jalota, Nikit Srivastava, Daniel Vollmers, René Speck, Michael Röder, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

Rich Search and Discovery for Research Datasets, 2019, #incollection

Do your Resources Sound Similar? On the Impact of Using Phonetic Similarity in Link Discovery

By Abdullah Fathi Ahmed, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

K-CAP 2019: Knowledge Capture Conference, 2019, #inproceedings

THOTH: Neural Translation and Enrichment of Knowledge Graphs

By Diego Moussallem, Tommaso Soru, Axel-Cyrille Ngonga Ngomo

International Semantic Web Conference, 2019, #inproceedings

Dragon: Decision Tree Learning for Link Discovery.

By Daniel Obraczka, Axel-Cyrille Ngonga Ngomo

ICWE, 2019, #inproceedings

Big POI data integration with Linked Data technologies

By Spiros Athanasiou, Giannopoulos Giorgos, Graux Damien, Karagiannakis Nikos, Lehmann Jens, Axel-Cyrille Ngonga Ngomo, Patroumpas Kostas, Mohamed Ahmed Sherif, Dimitrios Skoutas

International Conference on Extending Database Technology 2019, EDBT19, 2019, #inproceedings

Generating SPARQL Query Containment Benchmarks using the SQCFramework

By Muhammad Saleem, Qaiser Mehmood, Claus Stadler, Jens Lehmann, Axel-Cyrille Ngonga Ngomo

ISWC 2018 Poster and Demos, 2018, #inproceedings

Dynamic Planning for Link Discovery

By Kleanthi Georgala, Daniel Obraczka, Axel-Cyrille Ngonga Ngomo

The Semantic Web, ESWC 2018, Lecture Notes in Computer Science, 2018, #inproceedings

Leopard --- a Baseline Approach to Attribute Prediction and Validation for Knowledge Graph Population

By René Speck, Axel-Cyrille Ngonga Ngomo

Web Semantics: Science, Services and Agents on the World Wide Web, 2018, #article

Where is my URI?

By Andre Valdestilhas, Tommaso Soru, Markus Nentwig, Edgard Marx, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

European Semantic Web Conference, 2018, #inproceedings

Towards a Semantic Message-driven Microservice Platform for Geospatial and Sensor Data

By Matthias Wauer, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

Proceedings of the 3rd International Workshop on Geospatial Linked Data and the 2nd Workshop on Querying the Web of Data co-located with 15th Extended Semantic Web Conference (ESWC 2018), Heraklion, Greece, June 3, 2018, 2018, #inproceedings

LIdioms: A Multilingual Linked Idioms Data Set

By Diego Moussallem, Mohamed Ahmed Sherif, Diego Esteves, Marcos Zampieri, Axel-Cyrille Ngonga Ngomo

The 11th edition of the Language Resources and Evaluation Conference, 7-12 May 2018, Miyazaki (Japan), 2018, #inproceedings

Entity Linking in 40 Languages using MAG

By Diego Moussallem, Ricardo Usbeck, Michael Röder, Axel-Cyrille Ngonga Ngomo

The Semantic Web, ESWC 2018, Lecture Notes in Computer Science, 2018, #inproceedings

RDF2PT: Generating Brazilian Portuguese Texts from RDF Data

By Diego Moussallem, Marcos Zampieri Thiago Castro Ferreira, Maria Claudia Cavalcanti, Geraldo Xexéo, Mariana Neves, Axel-Cyrille Ngonga Ngomo

The 11th edition of the Language Resources and Evaluation Conference, 7-12 May 2018, Miyazaki (Japan), 2018, #inproceedings

An Empirical Evaluation of RDF Graph Partitioning Techniques

By Adnan Akhter, Axel-Cyrille Ngonga Ngomo, Muhammad Saleem

21st International Conference on Knowledge Engineering and Knowledge Management, 2018, #inproceedings

On Extracting Relations using Distributional Semantics and a Tree Generalization

By René Speck, Axel-Cyrille Ngonga Ngomo

Proceedings of The 21th International Conference on Knowledge Engineering and Knowledge Management (EKAW'2018), 2018, #inproceedings

On the Effect of Geometries Simplification on Geo-spatial Link Discovery

By Abdullah Fathi Ahmed, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

SEMANTiCS 2018 - Research Track, 2018, #inproceedings

9th Challenge on Question Answering over Linked Data (QALD-9) (invited paper)

By Ricardo Usbeck, Ria Hari Gusmita, Axel-Cyrille Ngonga Ngomo, Muhammad Saleem

Joint proceedings of the 4th Workshop on Semantic Deep Learning (SemDeep-4) and NLIWoD4: Natural Language Interfaces for the Web of Data (NLIWOD-4) and 9th Question Answering over Linked Data challenge (QALD-9) co-located with 17th International Semantic Web Conference (ISWC 2018), Monterey, California, United States of America, October 8th - 9th, 2018., 2018, #inproceedings

Machine Translation using Semantic Web Technologies: A Survey

By Diego Moussallem, Matthias Wauer, Axel-Cyrille Ngonga Ngomo

Journal of Web Semantics, 2018, #article

RADON2: A buffered-Intersection Matrix Computing Approach To Accelerate Link Discovery Over Geo-Spatial RDF Knowledge Bases (OAEI2018 Results)

By Abdullah Fathi Ahmed, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

Proceedings of Ontology Matching Workshop 2018, 2018, #inproceedings

Extending LargeRDFBench for Multi-Source Data at Scale for SPARQL Endpoint Federation

By Ali Hasnainb, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Dietrich Rebholz-Schuhmann

ISWC Satellite, SSWS, 2018, #inproceedings

8th Challenge on Question Answering over Linked Data (QALD-8)

By Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Felix Conrads, Michael Röder, Giulio Napolitano

Joint proceedings of the 4th Workshop on Semantic Deep Learning (SemDeep-4) and NLIWoD4: Natural Language Interfaces for the Web of Data (NLIWOD-4) and 9th Question Answering over Linked Data challenge (QALD-9) co-located with 17th International Semantic Web Conference (ISWC 2018), Monterey, California, United States of America, October 8th - 9th, 2018., 2018, #inproceedings

BENGAL: An Automatic Benchmark Generator for Entity Recognition and Linking

By Axel-Cyrille Ngonga Ngomo, Michael Röder, Diego Moussallem, Ricardo Usbeck, René Speck

Proceedings of the 11th International Conference on Natural Language Generation, Tilburg University, The Netherlands, November 5-8, 2018, 2018, #inproceedings

Efficiently Pinpointing SPARQL Query Containments

By Claus Stadler, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Jens Lehmann

18th International Conference on Web Engineering (ICWE2018), 2018, #inproceedings

CostFed: Cost-Based Query Optimization for SPARQL Endpoint Federation

By Muhammad Saleem, Alexander Potocki, Tommaso Soru, Olaf Hartig, Axel-Cyrille Ngonga Ngomo

Semantics, 2018, #inproceedings

FactCheck: Validating RDF Triples Using Textual Evidence

By Zafar Habeeb Syed, Michael Röder, Axel-Cyrille Ngonga Ngomo

Proceedings of the 27th ACM International Conference on Information and Knowledge Management, 2018, #inproceedings

Enhancing Community Interactions with Data-Driven Chatbots-The DBpedia Chatbot

By Ram G. Athreya, Axel-Cyrille Ngonga Ngomo, Ricardo Usbeck

Companion of the The Web Conference 2018 on The Web Conference 2018, WWW 2018, Lyon , France, April 23-27, 2018, 2018, #inproceedings

GERBIL - Benchmarking Named Entity Recognition and Linking consistently

By Michael Röder, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

Semantic Web, 2018, #article

Introducing the HOBBIT platform into the Ontology Alignment Evaluation Campaign

By Ernesto Jiménez-Ruiz, Tzanina Saveta, Ondrej Zamazal, Sven Hertling, Michael Röder, Irini Fundulaki, Axel-Cyrille Ngonga Ngomo, Mohamed Ahmed Sherif, Amina Annane, Zohra Bellahsene, Sadok Ben Yahia, Gayo Diallo, Daniel Faria, Marouen Kachroudi, Abderrahmane Khiat, Patrick Lambrix, Huanyu Li, Maximilian Mackeprang, Majid Mohammadi, Maciej Rybinski, Booma Sowkarthiga Balasubramani, Cassia Trojahn

Proceedings of the Ontology Matching Workshop 2018, 2018, #inproceedings

SQCFramework: Generating SPARQL Query Containment Benchmarks using the SQCFramework

By Muhammad Saleem, Claus Stadler, Qaiser Mehmood, Jens Lehmann, Axel-Cyrille Ngonga Ngomo

Demo at ISWC, 2018, #inproceedings

A Decentralized Architecture for SPARQL Query Processing and RDF Sharing: A Position Paper

By Edgard Marx, Muhammad Saleem, Ioanna Lytra, Axel-Cyrille Ngonga Ngomo

Semantic Computing (ICSC), 2018 IEEE 12th International Conference on, 2018, #inproceedings

MOCHA2018: The Mighty Storage Challenge at ESWC 2018

By Kleanthi Georgala, Mirko Spasić, Milos Jovanovik, Vassilis Papakonstantinou, Claus Stadler, Michael Röder, Axel-Cyrille Ngonga Ngomo

Semantic Web Evaluation Challenges, 2018, #inproceedings

Open Knowledge Extraction Challenge 2018

By René Speck, Michael Röder, Felix Conrads, Hyndavi Rebba, Catherine Camilla Romiyo, Gurudevi Salakki, Rutuja Suryawanshi, Danish Ahmed, Nikit Srivastava, Mohit Mahajan, Axel-Cyrille Ngonga Ngomo

Semantic Web Evaluation Challenge, 2018, #inproceedings

The Scalable Question Answering Over Linked Data (SQA) Challenge 2018

By Giulio Napolitano, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

Semantic Web Challenges - 5th SemWebEval Challenge at ESWC 2018, Heraklion, Greece, June 3-7, 2018, Revised Selected Papers, 2018, #inproceedings

Characterizing Mention Mismatching Problems for Improving Recognition Results

By Jean Carlos Oliveira de Abreu, Renato Fileto, Axel-Cyrille Ngonga Ngomo, Michael Röder, Matthias Wittwer, Horacio Saggion

Proceedings of the 19th International Conference on Information Integration and Web-Based Applications & Services, 2017, #inproceedings

A Systematic Survey of Point Set Distance Measures for Link Discovery

By Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

Semantic Web Journal, 2017, #article

An Evaluation of SPARQL Federation Engines Over Multiple Endpoints

By Muhammad Saleem, Yasar Khan, Ali Hasnain, Ivan Ermilov, Axel-Cyrille Ngonga Ngomo

Technical report, 2017, #article

CEDAL: Time-efficient Detection of Erroneous Links in Large-scale Link Repositories

By Andre Valdestilhas, Tommaso Soru, Axel-Cyrille Ngonga Ngomo

Proceedings of the International Conference on Web Intelligence, 2017, #inproceedings

RADON - Rapid Discovery of Topological Relations

By Mohamed Ahmed Sherif, Kevin Dreßler, Panayiotis Smeros, Axel-Cyrille Ngonga Ngomo

Proceedings of The Thirty-First AAAI Conference on Artificial Intelligence (AAAI-17), 2017, #inproceedings

MOCHA2017: The Mighty Storage Challenge at ESWC 2017

By Kleanthi Georgala, Mirko Spasić, Milos Jovanovik, Henning Petzka, Michael Röder, Axel-Cyrille Ngonga Ngomo

Semantic Web Evaluation Challenge, 2017, #inproceedings

A High-Performance Approach to String Similarity using Most Frequent K Characters

By Andre Valdestilhas, Tommaso Soru, Axel-Cyrille Ngonga Ngomo

Proceedings of the Ontology Matching Workshop (co-located with ISWC 2017), 2017, #inproceedings

Managing Lifecycle of Big Data Applications

By Ivan Ermilov, Axel-Cyrille Ngonga Ngomo, Aad Versteden, Hajira Jabeen, Gezim Sejdiu, Giorgos Argyriou, Luigi Selmi, Jürgen Jakobitsch, Jens Lehmann

Knowledge Engineering and Semantic Web, 2017, #inproceedings

Open Knowledge Extraction Challenge 2017

By René Speck, Michael Röder, Sergio Oramas, Luis Espinosa-Anke, Axel-Cyrille Ngonga Ngomo

Semantic Web Evaluation Challenge, 2017, #inproceedings

Question Answering Over Linked Data: What is Difficult to Answer? What affects the F scores?

By Muhammad Saleem, Samaneh Nazari Dastjerdi, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

Natural Language Interfaces workshop at ISWC, 2017, #inproceedings

WOMBAT - A Generalization Approach for Automatic Link Discovery

By Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo, Jens Lehmann

14th Extended Semantic Web Conference, Portoroz, Slovenia, 28th May - 1st June 2017, 2017, #inproceedings

Federated SPARQL Query Processing Via CostFed

By Alexander Potocki, Muhammad Saleem, Tommaso Soru, Olaf Hartig, Martin Voigt, Axel-Cyrille Ngonga Ngomo

Semantics, 2017, #inproceedings

Holistic and Scalable Ranking of RDF Data

By Axel-Cyrille Ngonga Ngomo, Michael Hoffmann, Ricardo Usbeck, Kunal Jha

2017 IEEE International Conference on Big Data, 2017, #inproceedings

Using Multi-Label Classification for Improved Question Answering

By Ricardo Usbeck, Michael Hoffmann, Michael Röder, Jens Lehmann, Axel-Cyrille Ngonga Ngomo

CoRR, 2017, #article

LOG4MEX: A Library to Export Machine Learning Experiments

By Diego Esteves, Diego Moussallem, Tommaso Soru, Ciro Baron Neto, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Julio Cesar Duarte

WI '17 - IEEE/WIC/ACM International Conference on Web Intelligence, 2017, #inproceedings

An Evaluation of Models for Runtime Approximation in Link Discovery

By Kleanthi Georgala, Michael Hoffmann, Axel-Cyrille Ngonga Ngomo

Proceedings of the International Conference on Web Intelligence, 2017, #inproceedings

The Tale of Sansa Spark

By Ivan Ermilov, Jens Lehmann, Gezim Sejdiu, Lorenz Bühmann, Patrick Westphal, Claus Stadler, Simon Bin, Nilesh Chakraborty, Henning Petzka, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Hajira Jabeen

Proceedings of 16th International Semantic Web Conference, Poster & Demos, 2017, #inproceedings

All That Glitters is not Gold -- Rule-Based Curation of Reference Datasets for Named Entity Recognition and Entity Linking

By Kunal Jha, Michael Röder, Axel-Cyrille Ngonga Ngomo

The Semantic Web. Latest Advances and New Domains: 14th International Conference, ESWC 2017, Proceedings, 2017, #inproceedings

Benchmarking RDF Storage Solutions with IGUANA

By Felix Conrads, Jens Lehmann, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

Proceedings of 16th International Semantic Web Conference - Poster & Demos, 2017, #inproceedings

Mandolin: A Knowledge Discovery Framework for the Web of Data

By Tommaso Soru, Diego Esteves, Edgard Marx, Axel-Cyrille Ngonga Ngomo

, 2017, #techreport

SQCFramework: SPARQL Query Containment Benchmark Generation Framework

By Muhammad Saleem, Claus Stadler, Qaiser Mehmood, Jens Lehmann, Axel-Cyrille Ngonga Ngomo

K-CAP 2017: Knowledge Capture Conference, 2017, #inproceedings

MAG: A Multilingual, Knowledge-base Agnostic and Deterministic Entity Linking Approach

By Diego Moussallem, Ricardo Usbeck, Michael Röder, Axel-Cyrille Ngonga Ngomo

K-CAP 2017: Knowledge Capture Conference, 2017, #inproceedings

Torpedo: Improving the State-of-the-Art RDF~Dataset~Slicing

By Edgard Marx, Saeedeh Shekarpour, Tommaso Soru, Adrian M.P. Brasoveanu, Muhammad Saleem, Ciro Baron, Albert Weichselbraun, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Sören Auer

11th IEEE International Conference on Semantic Computing, Jan 30-Feb 1, 2017, San Diego, California, USA, 2017, #inproceedings

Eaglet -- a Named Entity Recognition and Entity Linking Gold Standard Checking Tool

By Kunal Jha, Michael Röder, Axel-Cyrille Ngonga Ngomo

The Semantic Web. Latest Advances and New Domains: 14th International Conference, ESWC 2017, Proceedings, 2017, #inproceedings

Ensemble Learning of Named Entity Recognition Algorithms using Multilayer Perceptron for the Multilingual Web of Data

By René Speck, Axel-Cyrille Ngonga Ngomo

K-CAP 2017: Knowledge Capture Conference, 2017, #inproceedings

GENESIS -- A Generic RDF Data Access Interface

By Timofey Ermilov, Diego Moussallem, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

WI '17 - IEEE/WIC/ACM International Conference on Web Intelligence, 2017, #inproceedings

7th Open Challenge on Question Answering over Linked Data (QALD-7)

By Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Bastian Haarmann, Anastasia Krithara, Michael Röder, Giulio Napolitano

Semantic Web Evaluation Challenge, 2017, #inproceedings

LargeRDFBench: A Billion Triples Benchmark for SPARQL Endpoint Federation

By Muhammad Saleem, Ali Hasnainb, Axel-Cyrille Ngonga Ngomo

Journal of Web Semantics (JWS), 2017, #inproceedings

OKBQA: an Open Collaboration Framework for Development of Natural Language Question-Answering over Knowledge Bases

By Jin-Dong Kim, Christina Unger, Axel-Cyrille Ngonga Ngomo, André Freitas, YoungGyun Hahm, Jiseong Kim, Gyu-Hyun Choi, Jeonguk Kim, Ricardo Usbeck, Myoung-Gu Kang, Key-Sun Choi

Proceedings of the ISWC 2017 Posters & Demonstrations and Industry Tracks co-located with 16th International Semantic Web Conference (ISWC 2017), Vienna, Austria, October 23rd - to - 25th, 2017., 2017, #inproceedings

Simplifying the Deployment of Big Data Solutions

By Ivan Ermilov, Axel-Cyrille Ngonga Ngomo

KESW Demo/Poster Track, 2017, #inproceedings

Survey on Challenges of Question Answering in the Semantic Web

By Konrad Höffner, Sebastian Walter, Edgard Marx, Ricardo Usbeck, Jens Lehmann, Axel-Cyrille Ngonga Ngomo

Semantic Web Journal, 2017, #article

HOBBIT: Holistic Benchmarking for Big Linked Data

By Axel-Cyrille Ngonga Ngomo, Michael Röder

ESWC, EU networking session, 2016, #inproceedings

DIESEL -- Distributed Search over Large Enterprise Data

By Ricardo Usbeck, Michael Röder, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

ESWC, EU networking session, 2016, #inproceedings

Techreport for GERBIL 1.2.2 - V1

By Michael Röder, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

, 2016, #techreport

On the Efficient Execution of Bounded Jaro-Winkler Distances

By Kevin Dreßler, Axel-Cyrille Ngonga Ngomo

Semantic Web Journal, 2016, #inproceedings

Self-Wiring Question Answering Systems

By Ricardo Usbeck, Jonathan Huthmann, Nico Duldhardt, Axel-Cyrille Ngonga Ngomo

CoRR, 2016, #article

Requirements to Modern Semantic Search Engines

By Ricardo Usbeck, Michael Röder, Peter Haase, Artem Kozlov, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

KESW, 2016, #inproceedings

Lion's Den: Feeding the LinkLion

By Mohamed Ahmed Sherif, Mofeed Hassan, Tommaso Soru, Axel-Cyrille Ngonga Ngomo, Jens Lehmann

Proceedings of Ontology Matching Workshop, 2016, #inproceedings

SPARQL Querying Benchmarks

By Muhammad Saleem, Ricardo Usbeck, Michael Röder, Axel-Cyrille Ngonga Ngomo

Tutorial at ISWC, 2016, #inproceedings

Detecting Similar Linked Datasets Using Topic Modelling

By Michael Röder, Axel-Cyrille Ngonga Ngomo, Ivan Ermilov, Andreas Both

The Semantic Web. Latest Advances and New Domains: 13th International Conference, ESWC 2016, Heraklion, Crete, Greece, May 29 -- June 2, 2016, Proceedings, 2016, #inbook

Federated Query Processing: Challenges and Opportunities

By Axel-Cyrille Ngonga Ngomo, Muhammad Saleem

Keynote at PROFILES at Extended Semantic Web Conference (ESWC), 2016, #inproceedings

An Efficient Approach for the Generation of Allen Relations

By Kleanthi Georgala, Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

Proceedings of the 22nd European Conference on Artificial Intelligence (ECAI) 2016, The Hague, 29. August - 02. September 2016, 2016, #inproceedings

Exploring Term Networks for Semantic Search over RDF Knowledge Graphs

By Edgard Marx, Konrad Höffner, Saeedeh Shekarpour, Axel-Cyrille Ngonga Ngomo, Jens Lehmann, Sören Auer

Metadata and Semantics Research: 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings, 2016, #inproceedings

TAIPAN: Automatic Property Mapping for Tabular Data

By Ivan Ermilov, Axel-Cyrille Ngonga Ngomo

Proceedings of 20th International Conference on Knowledge Engineering and Knowledge Management (EKAW'2016), 2016, #inproceedings

The Lazy Traveling Salesman - Memory Management for Large-Scale Link Discovery.

By Axel-Cyrille Ngonga Ngomo, Mofeed M. Hassan

ESWC, 2016, #inproceedings

Towards SPARQL-Based Induction for Large-Scale RDF Data sets

By Simon Bin, Lorenz Bühmann, Jens Lehmann, Axel-Cyrille Ngonga Ngomo

ECAI 2016 - Proceedings of the 22nd European Conference on Artificial Intelligence, 2016, #inproceedings

QAMEL -- Question Answering on Mobile Devices

By Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

ESWC, EU networking session, 2016, #inproceedings

DBtrends : Publishing and Benchmarking RDF Ranking Functions

By Edgard Marx, Amrapali Zaveri, Mofeed Mohammed, Sandro Rautenberg, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Gong Cheng

2nd International Workshop on Summarizing and Presenting Entities and Ontologies, co-located with the 13th Extended Semantic Web Conference, 2016, #inproceedings

UPSP: Unique Predicate-based Source Selection for SPARQL Endpoint Federation

By Ethem Cem Ozkan, Muhammad Saleem, Erdogan Dogdu, Axel-Cyrille Ngonga Ngomo

PROFILES at Extended Semantic Web Conference (ESWC), 2016, #inproceedings

An Open Question Answering Framework

By Edgard Marx, Tommaso Soru, Diego Esteves, Axel-Cyrille Ngonga Ngomo, Jens Lehmann

The 14th International Semantic Web Conference, Posters & Demonstrations Track, 2015, #inproceedings

LSQ: The Linked SPARQL Queries Dataset

By Muhammad Saleem, Intizar Ali, Aidan Hogan, Qaiser Mehmood, Axel-Cyrille Ngonga Ngomo

International Semantic Web Conference (ISWC), 2015, #inproceedings

Federated Query Processing over Linked Data

By Muhammad Saleem, Muhammad Intizar Ali, Ruben Verborgh, Axel-Cyrille Ngonga Ngomo

Tutorial at ISWC, 2015, #inproceedings

The LSQ Dataset: Querying for Queries

By Muhammad Saleem, Intizar Ali, Aidan Hogan, Qaiser Mehmood, Axel-Cyrille Ngonga Ngomo

International Semantic Web Conference (ISWC), 2015, #inproceedings

Answering Boolean Hybrid Questions with HAWK

By Ricardo Usbeck, Erik Körner, Axel-Cyrille Ngonga Ngomo

NLIWOD workshop at International Semantic Web Conference (ISWC), including erratum and changes, 2015, #inproceedings

ROCKER – A Refinement Operator for Key Discovery

By Tommaso Soru, Edgard Marx, Axel-Cyrille Ngonga Ngomo

Proceedings of the 24th International Conference on World Wide Web, WWW 2015, 2015, #inproceedings

An Optimization Approach for Load Balancing in Parallel Link Discovery

By Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

SEMANTiCS 2015, 2015, #inproceedings

DeFacto - Temporal and Multilingual Deep Fact Validation

By Daniel Gerber, Diego Esteves, Jens Lehmann, Lorenz Bühmann, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, René Speck

Web Semantics: Science, Services and Agents on the World Wide Web, 2015, #article

FEASIBLE: A Feature-Based SPARQL Benchmark Generation Framework

By Muhammad Saleem, Qaiser Mehmood, Axel-Cyrille Ngonga Ngomo

International Semantic Web Conference (ISWC), 2015, #inproceedings

GERBIL -- General Entity Annotation Benchmark Framework

By Ricardo Usbeck, Michael Röder, Axel-Cyrille Ngonga Ngomo, Ciro Baron, Andreas Both, Martin Brümmer, Diego Ceccarelli, Marco Cornolti, Didier Cherix, Bernd Eickmann, Paolo Ferragina, Christiane Lemke, Andrea Moro, Roberto Navigli, Francesco Piccinno, Giuseppe Rizzo, Harald Sack, René Speck, Raphaël Troncy, Jörg Waitelonis, Lars Wesemann

24th WWW conference, 2015, #inproceedings

HAWK - Hybrid Question Answering over Linked Data

By Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger

12th Extended Semantic Web Conference, Portoroz, Slovenia, 31st May - 4th June 2015, 2015, #inproceedings

HAWK@QALD5 – Trying to answer hybrid questions with various simple ranking techniques

By Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

CLEF 2015 Labs and Workshops, Notebook Papers. CEUR Workshop Proceedings (CEUR-WS.org/Vol-1391), 2015, #inproceedings

Automatic SPARQL Benchmark Generation Using FEASIBLE

By Muhammad Saleem, Qaiser Mehmood, Axel-Cyrille Ngonga Ngomo

International Semantic Web Conference (ISWC), 2015, #inproceedings

Enhancing Dataset Quality Using Keys

By Tommaso Soru, Edgard Marx, Axel-Cyrille Ngonga Ngomo

The 14th International Semantic Web Conference (ISWC 2015), Posters & Demonstrations Track, 2015, #inproceedings

CETUS -- A Baseline Approach to Type Extraction

By Michael Röder, Ricardo Usbeck, René Speck, Axel-Cyrille Ngonga Ngomo

1st Open Knowledge Extraction Challenge @ 12th European Semantic Web Conference (ESWC 2015), 2015, #inproceedings

Developing a Sustainable Platform for Entity Annotation Benchmarks

By Michael Röder, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

ESWC Developers Workshop 2015, 2015, #inproceedings

The GeoKnow Handbook

By Jens Lehmann, Spiros Athanasiou, Andreas Both, Lorenz Buehmann, Alejandra Garcia-Rojas, Giorgos Giannopoulos, Daniel Hladky, Konrad Hoeffner, Jon Jay Le Grange, Axel-Cyrille Ngonga Ngomo, Rene Pietzsch, Robert Isele, Mohamed Ahmed Sherif, Claus Stadler, Matthias Wauer, Patrick Westphal

, 2015, #techreport

A survey of current Link Discovery frameworks

By Markus Nentwig, Michael Hartung, Axel-Cyrille Ngonga Ngomo, Erhard Rahm

Semantic Web, 2015, #article

Evaluating Entity Annotators Using GERBIL

By Ricardo Usbeck, Michael Röder, Axel-Cyrille Ngonga Ngomo

Proceedings of 12th European Semantic Web Conference (ESWC 2015), 2015, #inproceedings

Automating RDF Dataset Transformation and Enrichment

By Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo, Jens Lehmann

12th Extended Semantic Web Conference, Portoroz, Slovenia, 31st May - 4th June 2015, 2015, #inproceedings

ASSESS --- Automatic Self-Assessment Using Linked Data

By Lorenz Bühmann, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo

International Semantic Web Conference (ISWC), 2015, #inproceedings

Managing Geospatial Linked Data in the GeoKnow Project

By Jens Lehmann, Spiros Athanasiou, Andreas Both, Alejandra Garcia-Rojas, Giorgos Giannopoulos, Daniel Hladky, Konrad Hoeffner, Jon Jay Le Grange, Axel-Cyrille Ngonga Ngomo, Mohamed Ahmed Sherif, Claus Stadler, Matthias Wauer, Patrick Westphal, Vadim Zaslawski

The Semantic Web in Earth and Space Science. Current Status and Future Directions, 2015, #inbook

Using Caching for Local Link Discovery on Large Data Sets

By Mofeed M. Hassan, René Speck, Axel-Cyrille Ngonga Ngomo

Engineering the Web in the Big Data Era, 2015, #incollection

Overview of CLEF Question Answering Track 2014

By Anselmo Peñas, Christina Unger, Axel-Cyrille Ngonga Ngomo

Proceedings of CLEF, 2014, #inproceedings

SESSA - Keyword-Based Entity Search through Coloured Spreading Activation

By Denis Lukovnikov, Axel-Cyrille Ngonga Ngomo

NLIWOD workshop at ISWC, 2014, #article

The GeoKnow Generator: Managing Geospatial Data in the Linked Data Web

By Jon Jay Le Grange, Jens Lehmann, Spiros Athanasiou, Alejandra Garcia Rojas, Giorgos Giannopoulos, Daniel Hladky, Robert Isele, Axel-Cyrille Ngonga Ngomo, Mohamed Ahmed Sherif, Claus Stadler, Matthias Wauer

Proceedings of the Linking Geospatial Data Workshop, 2014, #inproceedings

AGDISTIS - Graph-Based Disambiguation of Named Entities Using Linked Data

By Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Michael Röder, Daniel Gerber, SandroAthaide Coelho, Sören Auer, Andreas Both

The Semantic Web -- ISWC 2014, 2014, #incollection

SINA: Semantic Interpretation of User Queries for Question Answering on Interlinked Data

By Saeedeh Shekarpour, Edgard Marx, Axel-Cyrille Ngonga Ngomo, Sören Auer

Web Semantics, 2014, #article

Named Entity Recognition using FOX

By René Speck, Axel-Cyrille Ngonga Ngomo

International Semantic Web Conference 2014 (ISWC2014), Demos & Posters, 2014, #inproceedings

Big Linked Cancer Data: Integrating Linked TCGA and PubMed

By Muhammad Saleem, Maulik Kamdar, Aftab Iqbal, Shanmukha Sampath, Helena Deus, Axel-Cyrille Ngonga Ngomo

Web Semantics: Science, Services and Agents on the World Wide Web, 2014, #article

A Comparison of Supervised Learning Classifiers for Link Discovery

By Tommaso Soru, Axel-Cyrille Ngonga Ngomo

Proceedings of the 10th International Conference on Semantic Systems, 2014, #inproceedings

Hybrid Acquisition of Temporal Scopes for RDF Data

By Anisa Rula, Matteo Palmonari, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Jens Lehmann, Lorenz Bühmann

Proc. of the Extended Semantic Web Conference 2014, 2014, #inproceedings

Towards an Open Question Answering Architecture

By Edgard Marx, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Konrad Höffner, Jens Lehmann, Sören Auer

Proceedings of the 10th International Conference on Semantic Systems, 2014, #inproceedings

A tool suite for creating Question Answering benchmarks

By Axel-Cyrille Ngonga Ngomo, Norman Heino, René Speck, Prodromos Malakasiotis

Proceedings of LREC, 2014, #inproceedings

Time-Efficient Execution of Bounded Jaro-Winkler Distances

By Kevin Dreßler, Axel-Cyrille Ngonga Ngomo

Proceedings of Ontology Matching Workshop, 2014, #inproceedings

Ensemble Learning for Named Entity Recognition

By René Speck, Axel-Cyrille Ngonga Ngomo

The Semantic Web - ISWC 2014 - 13th International Semantic Web Conference, Riva del Garda, Italy, October 19-23, 2014. Proceedings, Part I, 2014, #inproceedings

TopFed: TCGA Tailored Federated Query Processing and Linking to LOD

By Muhammad Saleem, Shanmukha Sampath, Axel-Cyrille Ngonga Ngomo, Aftab Iqbal, Jonas Almeida, Helena Deus

Journal of Biomedical Semantics, 2014, #article

SAFE: Policy Aware SPARQL Query Federation Over RDF Data Cubes

By Yasar Khan, Muhammad Saleem, Aftab Iqbal, Muntazir Mehdi, Aidan Hogan, Panagiotis Hasapis, Axel-Cyrille Ngonga Ngomo, Stefan Decker, Ratnesh Sahay

Semantic Web Applications and Tools for Life Sciences(SWAT4LS), 2014, #inproceedings

AGDISTIS - Agnostic Disambiguation of Named Entities Using Linked Open Data

By Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Michael Röder, Daniel Gerber, Sandro Atha\'ıde Coelho, Sören Auer, Andreas Both

ECAI 2014 - 21st European Conference on Artificial Intelligence, 18-22 August 2014, Prague, Czech Republic - Including Prestigious Applications of Intelligent Systems (PAIS 2014), 2014, #inproceedings

Web-Scale Extension of RDF Knowledge Bases from Templated Websites

By Lorenz Bühmann, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Muhammad Saleem, Andreas Both, Valter Crescenzi, Paolo Merialdo, Disheng Qiu

International Semantic Web Conference (ISWC), 2014, #inproceedings

Multilingual Disambiguation of Named Entities Using Linked Data

By Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Wencan Luo, Lars Wesemann

International Semantic Web Conference (ISWC), Demos & Posters, 2014, #inproceedings

From RDF to Natural Language and Back

By Daniel Gerber, Axel-Cyrille Ngonga Ngomo

Towards the Multilingual Semantic Web, Principles, Methods and Applications, 2014, #incollection

Unsupervised Link Discovery Through Knowledge Base Repair

By Axel-Cyrille Ngonga Ngomo, Mohamed Ahmed Sherif, Klaus Lyko

Extended Semantic Web Conference (ESWC 2014), 2014, #inproceedings

Question Answering over Linked Data (QALD-4)

By Christina Unger, Corina Forascu, Vanessa Lopez, Axel-Cyrille Ngonga Ngomo, Elena Cabrio, Philipp Cimiano, Sebastian Walter

Proceedings of CLEF, 2014, #inproceedings

LinkLion: A Link Repository for the Web of Data

By Markus Nentwig, Tommaso Soru, Axel-Cyrille Ngonga Ngomo, Erhard Rahm

Proceedings of ESWC, 2014, #inproceedings

Semantic Quran: A Multilingual Resource for Natural-Language Processing

By Mohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo

Semantic Web Journal, 2014, #article

Results of the BioASQ Track of the Question Answering Lab at CLEF 2014

By George Balikas, Ioannis Partalas, Axel-Cyrille Ngonga Ngomo, Anastasia Krithara, Eric Gaussier, George Paliouras

Proceedings of CLEF, 2014, #inproceedings

A Fine-Grained Evaluation of SPARQL Endpoint Federation Systems

By Muhammad Saleem, Yasar Khan, Ali Hasnain, Ivan Ermilov, Axel-Cyrille Ngonga Ngomo

Semantic Web Journal, 2014, #article

Introduction to Linked Data and Its Lifecycle on the Web

By Axel-Cyrille Ngonga Ngomo, Sören Auer, Jens Lehmann, Amrapali Zaveri

Reasoning Web, 2014, #inproceedings

HELIOS – Execution Optimization for Link Discovery

By Axel-Cyrille Ngonga Ngomo

Proceedings of ISWC, 2014, #inproceedings

HiBISCuS: Hypergraph-Based Source Selection for SPARQL Endpoint Federation

By Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

Extended Semantic Web Conference (ESWC 2014), 2014, #inproceedings

Cross-Document Coreference Resolution using Latent Features

By Axel-Cyrille Ngonga Ngomo, Michael Röder, Ricardo Usbeck

LD4IE---Linked Data for Information Extraction at ISWC 2014, 2014, #inproceedings

User Interface for a Template Based Question Answering System

By Konrad Höffner, Christina Unger, Lorenz Bühmann, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Phillip Cimiano

Proceedings of the 4th Conference on Knowledge Engineering and Semantic Web, 2013, #inproceedings

Linked SDMX Data

By Sarven Capadisli, Sören Auer, Axel-Cyrille Ngonga Ngomo

Semantic Web Journal, 2013, #article

COALA—Correlation-Aware Active Learning of Link Specifications

By Axel-Cyrille Ngonga Ngomo, Klaus Lyko, Victor Christen

Proceedings of ESWC, 2013, #inproceedings

When to Reach for the Cloud: Using Parallel Hardware for Link Discovery.

By Axel-Cyrille Ngonga Ngomo, Lars Kolb, Norman Heino, Michael Hartung, Sören Auer, Erhard Rahm

Proceedings of ESCW, 2013, #inproceedings

SAIM---One Step Closer to Zero-Configuration Link Discovery

By Klaus Lyko, Konrad Höffner, René Speck, Axel-Cyrille Ngonga Ngomo, Jens Lehmann

Proc. of the Extended Semantic Web Conference Posters & Demos, 2013, #inproceedings

Transfer Learning of Link Specifications

By Axel-Cyrille Ngonga Ngomo, Jens Lehmann, Mofeed Hassan

Seventh IEEE International Conference on Semantic Computing (ICSC), 2013, #inproceedings

Real-time RDF extraction from unstructured data streams

By Daniel Gerber, Axel-Cyrille Ngonga Ngomo, Sebastian Hellmann, Tommaso Soru, Lorenz Bühmann, Ricardo Usbeck

Proceedings of ISWC, 2013, #inproceedings

Unsupervised learning of link specifications: deterministic vs. non-deterministic

By Axel-Cyrille Ngonga Ngomo, Klaus Lyko

Proceedings of the Ontology Matching Workshop, 2013, #inproceedings

Question Answering on interlinked data

By Saeedeh Shekarpour, Axel-Cyrille Ngonga Ngomo, Sören Auer

WWW, 2013, #inproceedings

Rapid Execution of Weighted Edit Distances

By Tommaso Soru, Axel-Cyrille Ngonga Ngomo

Proceedings of the Ontology Matching Workshop, 2013, #inproceedings

Results of the First BioASQ Workshop

By Ioannis Partalas, Eric Gaussier, Axel-Cyrille Ngonga Ngomo

BioASQ@CLEF, 2013, #inproceedings

On Caching for Local Graph Clustering Algorithms

By René Speck, Axel-Cyrille Ngonga Ngomo

Australasian Conference on Artificial Intelligence, 2013, #inproceedings

Extraktion, Mapping und Verlinkung von Daten im Web

By Sören Auer, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Claus Stadler, Jörg Unbehauen

Datenbank Spektrum, 2013, #article

Sorry, I don't speak SPARQL --- Translating SPARQL Queries into Natural Language

By Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger, Jens Lehmann, Daniel Gerber.

Proceedings of WWW, 2013, #inproceedings

Fostering Serendipity through Big Linked Data

By Muhammad Saleem, Maulik R Kamdar, Aftab Iqbal, Shanmukha Sampath, Helena F Deus, Axel-Cyrille Ngonga Ngomo

Semantic Web Challenge at ISWC2013, 2013, #inproceedings

ORCHID - Reduction-Ratio-Optimal Computation of Geo-Spatial Distances for Link Discovery

By Axel-Cyrille Ngonga Ngomo

Proceedings of ISWC 2013, 2013, #inproceedings

Linked Cancer Genome Atlas Database

By Muhammad Saleem, Shanmukha Sampath Padmanabhuni, Axel-Cyrille Ngonga Ngomo, Jonas S. Almeida, Stefan Decker, Helena F. Deus

Proceedings of I-Semantics2013, 2013, #inproceedings

DAW: Duplicate-AWare Federated Query Processing over the Web of Data

By Muhammad Saleem, Axel-Cyrille Ngonga Ngomo, Josiane Xavier Parreira, Helena Deus, Manfred Hauswirth

Proceedings of ISWC2013, 2013, #inproceedings

Generating SPARQL queries using templates

By Saeedeh Shekarpour, Sören Auer, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Sebastian Hellmann, Claus Stadler

WIAS journal,Vol. 11, No. 3, 2013., 2013, #inproceedings

On Link Discovery using a Hybrid Approach

By Axel-Cyrille Ngonga Ngomo

Journal on Data Semantics, 2012, #article

Learning conformation rules for linked data integration

By Axel-Cyrille Ngonga Ngomo

Proceedings of Seventh International Workshop on Ontology Matching, 2012, #inproceedings

RAVEN---Towards Zero-Configuration Link Discovery

By Axel-Cyrille Ngonga Ngomo, Jens Lehmann, Sören Auer, Konrad Höffner

, 2012, #techreport

EAGLE: Efficient Active Learning of Link Specifications using Genetic Programming

By Axel-Cyrille Ngonga Ngomo, Klaus Lyko

Proceedings of ESWC, 2012, #inproceedings

Keyword-driven Resource Disambiguation over RDF Knowledge bases

By Saeedeh Shekarpour, Axel-Cyrille Ngonga Ngomo, Sören Auer

Proceedings of JIST, 2012, #inproceedings

DEQA: Deep Web Extraction for Question Answering

By Jens Lehmann, Tim Furche, Giovanni Grasso, Axel-Cyrille Ngonga Ngomo, Christian Schallhart, Andrew Sellers, Christina Unger, Lorenz Bühmann, Daniel Gerber, Konrad Höffner, David Liu, Sören Auer

Proceedings of ISWC, 2012, #inproceedings

Template-based Question Answering over RDF data

By Christina Unger, Lorenz Bühmann, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Philipp Cimiano

Proceedings of the 21st international conference on World Wide Web, 2012, #inproceedings

Active Learning of Domain-Specific Distances for Link Discovery

By Tommaso Soru, Axel-Cyrille Ngonga Ngomo

Proceedings of JIST, 2012, #inproceedings

Query Segmentation and Resource Disambiguation Leveraging Background Knowledge

By Saeedeh Shekarpour, Axel-Cyrille Ngonga Ngomo, Sören Auer

Proceedings of WoLE Workshop, 2012, #inproceedings

Link Discovery with Guaranteed Reduction Ratio in Affine Spaces with Minkowski Measures

By Axel-Cyrille Ngonga Ngomo

Proceedings of ISWC, 2012, #inproceedings

Usage-Centric Benchmarking of RDF Triple Stores

By Mohamed Morsey, Jens Lehmann, Sören Auer, Axel-Cyrille Ngonga Ngomo

Proceedings of the 26th AAAI Conference on Artificial Intelligence (AAAI 2012), 2012, #inproceedings

DeFacto - Deep Fact Validation

By Jens Lehmann, Daniel Gerber, Mohamed Morsey, Axel-Cyrille Ngonga Ngomo

Proc. of the International Semantic Web Conference, 2012, #inproceedings

Parallelizing LIMES for Large-Scale Link Discovery

By Stanley Hillner, Axel-Cyrille Ngonga Ngomo

I'Semantics, 2011, #inproceedings

Keyword-driven SPARQL Query Generation Leveraging Background Knowledge

By Saeedeh Shekarpour, Sören Auer, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Sebastian Hellmann, Claus Stadler

International Conference on Web Intelligence, 2011, #inproceedings

DBpedia SPARQL Benchmark---Performance Assessment with Real Queries on Real Data

By Mohamed Morsey, Jens Lehmann, Sören Auer, Axel-Cyrille Ngonga Ngomo

ISWC 2011, 2011, #inproceedings

RAVEN: Active Learning of Link Specifications

By Axel-Cyrille Ngonga Ngomo, Jens Lehmann, Sören Auer, Konrad Höffner

Proceedings of the Ontology Matching Workshop (co-located with ISWC), 2011, #inproceedings

SCMS - Semantifying Content Management Systems

By Axel-Cyrille Ngonga Ngomo, Norman Heino, Klaus Lyko, René Speck, Martin Kaltenböck

ISWC 2011, 2011, #inproceedings

Bootstrapping the Linked Data Web

By Daniel Gerber, Axel-Cyrille Ngonga Ngomo

1st Workshop on Web Scale Knowledge Extraction @ ISWC 2011, 2011, #inproceedings

LIMES - A Time-Efficient Approach for Large-Scale Link Discovery on the Web of Data

By Axel-Cyrille Ngonga Ngomo, Sören Auer

Proceedings of IJCAI, 2011, #inproceedings

Specifying relations between genes and gene products in GENIA

By Robert Hoehndorf, Axel-Cyrille Ngonga Ngomo, Sampo Pyysalo, Tomoko Ohta, Anika Oellrich, Dietrich Rebholz-Schuhmann

Journal of Biomedical Semantics, 2011, #article

A Time-Efficient Hybrid Approach to Link Discovery

By Axel-Cyrille Ngonga Ngomo

Proceedings of OM@ISWC, 2011, #inproceedings

Statistical tests for associations between two directed acyclic graphs

By Robert Hoehndorf, Axel-Cyrille Ngonga Ngomo, Michael Dannemann, Janet Kelso

PLOS One, 2010, #article

Applying ontology design patterns to the implementation of relations in GENIA

By Robert Hoehndorf, Axel-Cyrille Ngonga Ngomo, Sampo Pyysalo, Tomoko Ohta, Anika Oellrich, Dietrich Rebholz-Schuhmann

Proceedings of the fourth International Symposium for Semantic Mining in Biomedicine, 2010, #inproceedings

The TIGER Corpus Navigator

By Sebastian Hellmann, Jörg Unbehauen, Christian Chiarcos, Axel-Cyrille Ngonga Ngomo

Proceedings of the Ninth International Workshop on Treebanks and Linguistic Theories (TLT9), 2010, #inproceedings

Parameter-Free Clustering of Protein-Protein Interaction Graphs

By Axel-Cyrille Ngonga Ngomo

Proceedings of Symposium on Machine Learning in Systems Biology 2010, 2010, #inproceedings

Applying the functional abnormality ontology pattern to anatomical functions

By Robert Hoehndorf, Axel-Cyrille Ngonga Ngomo, Janet Kelso

Journal of Biomedical Semantics, 2010, #article

The application of an ontology design pattern for functional abnormalities to phenotype ontologies and the extraction of an ontology of anatomical functions

By Robert Hoehndorf, Axel-Cyrille Ngonga Ngomo, Janet Kelso

Proceedings of the third International Symposium on Languages in Bio-Medicine, 2009, #inproceedings

Disentangling the Wikipedia Category Graph for Corpus Extraction

By Axel-Cyrille Ngonga Ngomo, Frank Schumacher

Research Journal on Computer science and Computer Engineering with Applications, 2009, #article

Border Flow---A local graph clustering algorithm for Natural Language Processing

By Axel-Cyrille Ngonga Ngomo, Frank Schumacher

Proceedings of the 10th International Conference on Intelligent Text Processing and Computational Linguistics (CICLING 2009), 2009, #inproceedings

Developing Consistent and Modular Software Models with Ontologies

By Robert Hoehndorf, Axel-Cyrille Ngonga Ngomo, Heinrich Herre

Proceedings of the 8th International Conference on Software Methodologies, Tools, and Techniques, 2009, #inproceedings

Low-Bias Extraction of Domain-Specific Concepts

By Axel-Cyrille Ngonga Ngomo

, 2009, #phdthesis

Towards an Implicit and Collaborative Evolution of Terminological Ontologies

By Axel-Cyrille Ngonga Ngomo

Building the Knowledge Society on the Internet: Sharing and Exchanging Knowledge in Networked Environments, 2008, #incollection

Knowledge-Free Discovery of Domain-Specific Multi-Word Units

By Axel-Cyrille Ngonga Ngomo

ACM Symposium on Applied Computing (ACM SAC), 2008, #inproceedings

Towards Ontological Interpretations for Improved Text Mining

By Robert Hoehndorf, Axel-Cyrille Ngonga Ngomo, Michael Dannemann

Proceedings of the Third International Symposium on Semantic Mining in Biomedicine, 2008, #inproceedings

SIGNUM---A Graph Algorithm for Terminology Extraction

By Axel-Cyrille Ngonga Ngomo

roceedings of the 9th International Conference on Intelligent Text Processing and Computational Linguistics (CICLING 2008), 2008, #inproceedings

From Terms to Categories: Testing the Significance of Co-occurrences between Ontological Categories

By Robert Hoehndorf, Axel-Cyrille Ngonga Ngomo, Michael Dannemann, Janet Kelso

Proceedings of the Third International Symposium on Semantic Mining in Biomedicine, 2008, #inproceedings

SMORE—A Semantic Model Repository

By Martin Gebauer, Axel-Cyrille Ngonga Ngomo

Proceedings of the 1st Workshop of Knowledge Reuse at the International Conference on Software Reuse (ICSR), 2008, #inproceedings

A framework for adaptive information retrieval

By Axel-Cyrille Ngonga Ngomo, Hans-Friedrich Witschel

Proceedings of the first International Conference on Theoeretical Information Retrieval, 2007, #inproceedings

Involving the User in Semantic Search

By Axel-Cyrille Ngonga Ngomo, Frank Schumacher

Proceedings of the HCI International, 2007, #inproceedings

Implicit Knowledge Sharing

By Axel-Cyrille Ngonga Ngomo, Frank Schumacher

Proceedings of the 7th European Conference on Knowledge Management, 2006, #inproceedings

Clique-Based Clustering

By Axel-Cyrille Ngonga Ngomo

Proceeding of the IASTED Knowledge Sharing and Collaborative Engineering Conference, 2006, #inproceedings

Adaptive and Context-Sensitive Information Retrieval

By Axel-Cyrille Ngonga Ngomo

Proceedings of the third International Conference on Knowledge Management, 2006, #inproceedings

Building Adaptive Knowledge Spaces by Combining Machine Learning Algorithms with Ontologies and Text Mining Technologies

By Axel-Cyrille Ngonga Ngomo, Karsten Böhm

29th Annual Conference of the German Classification Society, 2005, #inproceedings

Kontext-dynamische Informationsversorgung durch Prozesse und Ontologien

By Axel-Cyrille Ngonga Ngomo, Jörg Härtwig

Tagungsband LIT'04, 2004, #inproceedings

Der Informationsraum als Metapher für die Realisierung dynamischer Informationsbedürfnisse im Kontext rollenbasierter Communities

By Axel-Cyrille Ngonga Ngomo, Klaus-Peter Fähnrich

Proceedings of LIT03, 2003, #inproceedings

ELEVATE-ID: Extending Large Language Models for End-to-End Entity Linking Evaluation in Indonesian

By Ria Hari Gusmita, Asep Fajar Firmansyah, Hamada M. Zahera, Axel-Cyrille Ngonga Ngomo

Data & Knowledge Engineering, 2026, #article

Contextual Augmentation for Entity Linking using Large Language Models

By Daniel Vollmers, Hamada M. Zahera, Diego Moussallem, Axel-Cyrille Ngonga Ngomo

COLING 2025, 2025, #article

Dung's Argumentation Framework: Unveiling the Expressive Power with Inconsistent Databases

By Yasir Mahmood, Markus Hecher, Axel-Cyrille Ngonga Ngomo

AAAI-25, Sponsored by the Association for the Advancement of Artificial Intelligence, February 25 - March 4, 2025, Philadelphia, PA, USA, 2025, #inproceedings

ANTS: Abstractive Entity Summarization in Knowledge Graphs

By Asep Fajar Firmansyah, Hamada M. Zahera, Mohamed Ahmed Sherif, Diego and Moussallem, Axel-Cyrille Ngonga Ngomo

Semantic Web – 22nd International Conference, ESWC 2025, Portoroz, Slovenia, June 1-5, 2025, Proceedings, 2025, #inproceedings

Fact Checking Knowledge Graphs - A Survey

By Umair Qudus, Michael Röder, Muhammad Saleem, Axel-Cyrille Ngonga Ngomo

ACM Comput. Surv., 2025, #article