Hamada Mohamed Abdelsamee Zahera
Fakultät für Elektrotechnik, Informatik und Mathematik
hamada.zahera@uni-paderborn.deID
16 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
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.
2025 | Conference Paper | LibreCat-ID: 59054
ANTS: Abstractive Entity Summarization in Knowledge Graphs
A.F. Firmansyah, H.M.A. Zahera, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo, in: ESWC2025, 2025.
LibreCat
A.F. Firmansyah, H.M.A. Zahera, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo, in: ESWC2025, 2025.
2024 | Conference Paper | LibreCat-ID: 54449 | 
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.)
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.
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
H.M.A. Zahera, A. Manzoor, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo, in: SEMANTiCS, Amsterdam, Netherlands, 2024.
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
N. Srivastava, D. Kuchelev, T. Moteu Ngoli, K. Shetty, M. Röder, D. Moussallem, H.M.A. Zahera, A.-C. Ngonga Ngomo, (2024).
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
N. Srivastava, M. Ma, D. Vollmers, H.M.A. Zahera, D. Moussallem, A.-C. Ngonga Ngomo, (2024).
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
H.M.A. Zahera, F. Vitiugin, M. Sherif, C. Castillo, A.-C. Ngonga Ngomo, in: SEMANTiCS, 2023.
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
H.M.A. Zahera, F. Vitiugin, M. Sherif, C. Castillo, A.-C. Ngonga Ngomo, in: SEMANTiCS, 2023.
2022 | Book Chapter | LibreCat-ID: 33738 |
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.
LibreCat
| DOI
| Download (ext.)
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.
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
H.M.A. Zahera, D. Vollmers, M. Sherif, A.-C. Ngonga Ngomo, in: ISWC 2022, Springer, Cham, n.d.
2021 | Conference Paper | LibreCat-ID: 29291 |
ASSET: A Semi-supervised Approach for Entity Typing in Knowledge Graphs
H.M.A. Zahera, S. Heindorf, A.-C. Ngonga Ngomo, in: Proceedings of the 11th on Knowledge Capture Conference, ACM, 2021.
LibreCat
| Files available
| DOI
| Download (ext.)
H.M.A. Zahera, S. Heindorf, A.-C. Ngonga Ngomo, in: Proceedings of the 11th on Knowledge Capture Conference, ACM, 2021.
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
H.M.A. Zahera, R. Jalota, M. Sherif, A.-C. Ngonga Ngomo, in: IEEE Open Access, 2021.
2021 | Conference Paper | LibreCat-ID: 29044
OntoConnect: Domain-Agnostic Ontology Alignment using Graph Embedding with Negative Sampling
J. Chakraborty, M. Sherif, H.M.A. Zahera, S. Bansal, in: Proceedings of the IEEE International Conference on Machine Learning and Applications, 2021.
LibreCat
J. Chakraborty, M. Sherif, H.M.A. Zahera, S. Bansal, in: Proceedings of the IEEE International Conference on Machine Learning and Applications, 2021.
2020 | Conference Paper | LibreCat-ID: 29040
ProBERT: Product Data Classification with Fine-tuning BERT Model
H.M.A. Zahera, M. Sherif, in: Proceedings of Mining the Web of HTML-Embedded Product Data Workshop (MWPD2020), 2020.
LibreCat
H.M.A. Zahera, M. Sherif, in: Proceedings of Mining the Web of HTML-Embedded Product Data Workshop (MWPD2020), 2020.
2019 | Conference Paper | LibreCat-ID: 29037
Jointly Learning from Social Media and Environmental Data for Typhoon Intensity Prediction
H.M.A. Zahera, M. Sherif, A.-C. Ngonga Ngomo, in: K-CAP 2019: Knowledge Capture Conference, 2019, p. 4.
LibreCat
H.M.A. Zahera, M. Sherif, A.-C. Ngonga Ngomo, in: K-CAP 2019: Knowledge Capture Conference, 2019, p. 4.
2019 | Conference Paper | LibreCat-ID: 29003
Fine-tuned BERT Model for Multi-Label Tweets Classification
H.M.A. Zahera, I. A. Elgendy, R. Jalota, M. Sherif, in: Proceedings of the Twenty-Eighth Text REtrieval Conference, {TREC} 2019, Gaithersburg, Maryland, USA, November 13-15, 2019, 2019.
LibreCat
H.M.A. Zahera, I. A. Elgendy, R. Jalota, M. Sherif, in: Proceedings of the Twenty-Eighth Text REtrieval Conference, {TREC} 2019, Gaithersburg, Maryland, USA, November 13-15, 2019, 2019.
16 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
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.
2025 | Conference Paper | LibreCat-ID: 59054
ANTS: Abstractive Entity Summarization in Knowledge Graphs
A.F. Firmansyah, H.M.A. Zahera, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo, in: ESWC2025, 2025.
LibreCat
A.F. Firmansyah, H.M.A. Zahera, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo, in: ESWC2025, 2025.
2024 | Conference Paper | LibreCat-ID: 54449 |
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.)
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.
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
H.M.A. Zahera, A. Manzoor, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo, in: SEMANTiCS, Amsterdam, Netherlands, 2024.
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
N. Srivastava, D. Kuchelev, T. Moteu Ngoli, K. Shetty, M. Röder, D. Moussallem, H.M.A. Zahera, A.-C. Ngonga Ngomo, (2024).
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
N. Srivastava, M. Ma, D. Vollmers, H.M.A. Zahera, D. Moussallem, A.-C. Ngonga Ngomo, (2024).
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
H.M.A. Zahera, F. Vitiugin, M. Sherif, C. Castillo, A.-C. Ngonga Ngomo, in: SEMANTiCS, 2023.
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
H.M.A. Zahera, F. Vitiugin, M. Sherif, C. Castillo, A.-C. Ngonga Ngomo, in: SEMANTiCS, 2023.
2022 | Book Chapter | LibreCat-ID: 33738 |
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.
LibreCat
| DOI
| Download (ext.)
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.
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
H.M.A. Zahera, D. Vollmers, M. Sherif, A.-C. Ngonga Ngomo, in: ISWC 2022, Springer, Cham, n.d.
2021 | Conference Paper | LibreCat-ID: 29291 |
ASSET: A Semi-supervised Approach for Entity Typing in Knowledge Graphs
H.M.A. Zahera, S. Heindorf, A.-C. Ngonga Ngomo, in: Proceedings of the 11th on Knowledge Capture Conference, ACM, 2021.
LibreCat
| Files available
| DOI
| Download (ext.)
H.M.A. Zahera, S. Heindorf, A.-C. Ngonga Ngomo, in: Proceedings of the 11th on Knowledge Capture Conference, ACM, 2021.
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
H.M.A. Zahera, R. Jalota, M. Sherif, A.-C. Ngonga Ngomo, in: IEEE Open Access, 2021.
2021 | Conference Paper | LibreCat-ID: 29044
OntoConnect: Domain-Agnostic Ontology Alignment using Graph Embedding with Negative Sampling
J. Chakraborty, M. Sherif, H.M.A. Zahera, S. Bansal, in: Proceedings of the IEEE International Conference on Machine Learning and Applications, 2021.
LibreCat
J. Chakraborty, M. Sherif, H.M.A. Zahera, S. Bansal, in: Proceedings of the IEEE International Conference on Machine Learning and Applications, 2021.
2020 | Conference Paper | LibreCat-ID: 29040
ProBERT: Product Data Classification with Fine-tuning BERT Model
H.M.A. Zahera, M. Sherif, in: Proceedings of Mining the Web of HTML-Embedded Product Data Workshop (MWPD2020), 2020.
LibreCat
H.M.A. Zahera, M. Sherif, in: Proceedings of Mining the Web of HTML-Embedded Product Data Workshop (MWPD2020), 2020.
2019 | Conference Paper | LibreCat-ID: 29037
Jointly Learning from Social Media and Environmental Data for Typhoon Intensity Prediction
H.M.A. Zahera, M. Sherif, A.-C. Ngonga Ngomo, in: K-CAP 2019: Knowledge Capture Conference, 2019, p. 4.
LibreCat
H.M.A. Zahera, M. Sherif, A.-C. Ngonga Ngomo, in: K-CAP 2019: Knowledge Capture Conference, 2019, p. 4.
2019 | Conference Paper | LibreCat-ID: 29003
Fine-tuned BERT Model for Multi-Label Tweets Classification
H.M.A. Zahera, I. A. Elgendy, R. Jalota, M. Sherif, in: Proceedings of the Twenty-Eighth Text REtrieval Conference, {TREC} 2019, Gaithersburg, Maryland, USA, November 13-15, 2019, 2019.
LibreCat
H.M.A. Zahera, I. A. Elgendy, R. Jalota, M. Sherif, in: Proceedings of the Twenty-Eighth Text REtrieval Conference, {TREC} 2019, Gaithersburg, Maryland, USA, November 13-15, 2019, 2019.