Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains
D. Böhm, G. Gottlob, M. Lanzinger, D.M. Longo, C. Okulmus, R. Pichler, A. Selzer, in: Proceedings of the 28th International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026), Tampere, Finland, 2026.

Common Foundations for Recursive Shape Languages
C. Okulmus, S. Ahmetaj, I. Boneva, J. Hidders, M. Jakubowski, J.E.  Labra Gayo, W. Martens, F. Mogavero, F. Murlak,  Ognjen  Savkovi, M. Simkus, D. Tomaszuk, in: Proceedings of the 23rd International Conference on Principles of Knowledge Representation and Reasoning (KR 2026), 2026.

Querying Interval-Based Temporal Data with SPARQL
J. Corman, R. Kontchakov, C. Okulmus, in: Proceedings of the 33rd International Symposium on Temporal Representation and Reasoning (TIME 2026), 2026.

Reaching for the Stars in EL Concept Learning
B. Gortworst, C. Okulmus, M. Ortiz, A.-Y. Turhan, in: Proceedings of the 39th International Workshop on Description Logics (DL 2026), 2026.

Shapes from Examples: Foundations of Shape Learning in Recursive SHACL
B. Gortworst, C. Okulmus, M. Ortiz, A.-Y. Turhan, in: Proceedings of the 25th International Semantic Web Conference (ISWC 2026), 2026.

Rewriting Ontology-Mediated Property Graph Queries into GQL
B. Löhnert, N. Augsten, C. Okulmus, M. Ortiz, in: Proceedings of the 35th International ACM Conference on Knowledge and Information Management (CIKM 2026), 2026.

Common Foundations for SHACL, ShEx, and PG-Schema
S. Ahmetaj, I. Boneva, J. Hidders, K. Hose, M. Jakubowski, J.E. Labra Gayo, W. Martens, F. Mogavero, F. Murlak, C. Okulmus, A. Polleres, O. Savkovi, M. Simkus, D. Tomaszuk, in: Proceedings of the ACM on Web Conference 2025, ACM, 2025, pp. 8–12.

Query Rewriting for Nested Navigational Queries over Property Graphs
B. Löhnert, N. Augsten, C. Okulmus, M. Ortiz, in: L. Tendera, Y. Ibanez Garcia, P. Koopmann (Eds.), Proceedings of the 38th International Workshop on Description Logics (DL 2025), Opole, Poland, September 3-6, 2025., Opole, Poland, 2025.

Soft and Constrained Hypertree Width
M. Lanzinger, C. Okulmus, R. Pichler, A. Selzer, G. Gottlob, Proceedings of the ACM on Management of Data 3 (2025) 1–25.

Towards Practicable Algorithms for Rewriting Graph Queries Beyond DL-Lite
B. Löhnert, N. Augsten, C. Okulmus, M. Ortiz, in: The Semantic Web - 22nd European Semantic Web Conference, ESWC 2025, Portoroz, Slovenia, June 1-5, 2025, Proceedings, Part I, Springer Nature Switzerland, 2025, pp. 342--361.