| Polynomial Datalog Rewritings for Expressive Description Logics with Closed Predicates. S Ahmetaj, M Ortiz, M Simkus IJCAI, 878-885, 2016 | 45* | 2016 |
| Managing change in graph-structured data using description logics S Ahmetaj, D Calvanese, M Ortiz, M Šimkus ACM transactions on computational logic (TOCL) 18 (4), 1-35, 2017 | 44 | 2017 |
| Towards reconciling SPARQL and certain answers S Ahmetaj, W Fischl, R Pichler, M Šimkus, S Skritek Proceedings of the 24th International Conference on World Wide Web, 23-33, 2015 | 31 | 2015 |
| Rewriting guarded existential rules into small datalog programs S Ahmetaj, M Ortiz, M Simkus 21st International Conference on Database Theory (ICDT 2018), 2018 | 22 | 2018 |
| Repairing SHACL constraint violations using answer set programming S Ahmetaj, R David, A Polleres, M Šimkus International Semantic Web Conference, 375-391, 2022 | 21 | 2022 |
| Reasoning about explanations for non-validation in SHACL S Ahmetaj, R David, M Ortiz, A Polleres, B Shehu, M Simkus Description Logics, 2021 | 20 | 2021 |
| Reconciling SHACL and ontologies: Semantics and validation via rewriting S Ahmetaj, M Ortiz, A Oudshoorn, M Šimkus ECAI 2023, 27-35, 2023 | 8 | 2023 |
| Magic shapes for SHACL validation S Ahmetaj, B Löhnert, M Ortiz, M Šimkus Proceedings of the VLDB Endowment 15 (10), 2284-2296, 2022 | 7 | 2022 |
| Formalizing Property Constraints in Wikidata. N Ferranti, A Polleres, JF de Souza, S Ahmetaj Wikidata@ ISWC, 2022 | 6 | 2022 |
| Polynomial Datalog Rewritings for Ontology Mediated Queries with Closed Predicates. S Ahmetaj, M Ortiz, M Simkus AMW, 2016 | 6 | 2016 |
| Formalizing and validating Wikidata’s property constraints using SHACL and SPARQL N Ferranti, JF De Souza, S Ahmetaj, A Polleres Semantic Web 15 (6), 2333-2380, 2024 | 5 | 2024 |
| Ontology-enriched query answering on relational databases S Ahmetaj, V Efthymiou, R Fagin, PG Kolaitis, C Lei, F Özcan, L Popa Proceedings of the AAAI Conference on Artificial Intelligence 35 (17), 15247 …, 2021 | 5 | 2021 |
| Polynomial Disjunctive Datalog Rewritings of Instance Queries in Expressive Description Logics. S Ahmetaj, M Ortiz, M Simkus Description Logics, 2016 | 4 | 2016 |
| The challenge of optional matching in SPARQL S Ahmetaj, W Fischl, M Kröll, R Pichler, M Šimkus, S Skritek Foundations of Information and Knowledge Systems: 9th International …, 2016 | 4 | 2016 |
| Protection of Personal Data in Information Systems B Shehu, S Ahmetaj, M Aranitasi, A Xhuvani International Journal of Computer Science Issues (IJCSI) 10 (4), 78, 2013 | 4 | 2013 |
| Methods of identifying and preventing SQL attacks B Shehu, A Xhuvani, S Ahmetaj International Journal of Computer Science Issues (IJCSI) 9 (6), 403, 2012 | 3 | 2012 |
| Rewriting approaches for ontology-mediated query answering S Ahmetaj KI-Künstliche Intelligenz 34 (4), 523-526, 2020 | 2 | 2020 |
| Magic Shapes for Validation in SHACL. S Ahmetaj, B Löhnert, M Ortiz, M Simkus ISWC (Posters/Demos/Industry), 2021 | 1 | 2021 |
| Managing change in Graph-structured Data using Description Logics (long version with appendix) S Ahmetaj, D Calvanese, M Ortiz, M Simkus arXiv preprint arXiv:1404.4274, 2014 | 1 | 2014 |
| Common Foundations for SHACL, ShEx, and PG-Schema S Ahmetaj, I Boneva, J Hidders, K Hose, M Jakubowski, JE Labra-Gayo, ... arXiv preprint arXiv:2502.01295, 2025 | | 2025 |
Mantas ŠimkusInstitute of Logic and Computation, TU Wien, AustriaVerified email at dbai.tuwien.ac.at