Saleem M, Potocki A, Soru T, Hartig O, Ngonga Ngomo A-C. CostFed: Cost-Based Query Optimization for SPARQL Endpoint Federation. In: Fensel A, de Boer V, Pellegrini T, et al., eds. Proceedings of the 14th International Conference on Semantic Systems, SEMANTICS 2018, Vienna, Austria, September 10-13, 2018. Vol 137. Procedia Computer Science. Elsevier; 2018:163-174. doi:10.1016/j.procs.2018.09.016

Stadler C, Saleem M, Ngonga Ngomo A-C, Lehmann J. Efficiently Pinpointing SPARQL Query Containments. In: Mikkonen T, Klamma R, Hernández J, eds. Web Engineering - 18th International Conference, ICWE 2018, C\rquote aceres, Spain, June 5-8, 2018, Proceedings. Vol 10845. Lecture Notes in Computer Science. Springer; 2018:210-224. doi:10.1007/978-3-319-91662-0‑16

Zinke C, Ngonga Ngomo A-C. Discovering and Linking Spatio-Temporal Big Linked Data. In: 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018, Valencia, Spain, July 22-27, 2018. IEEE; 2018:411-414. doi:10.1109/IGARSS.2018.8519025

Ngonga Ngomo A-C, Röder M, Moussallem D, Usbeck R, Speck R. BENGAL: An Automatic Benchmark Generator for Entity Recognition and Linking. In: Krahmer E, Gatt A, Goudbeek M, eds. Proceedings of the 11th International Conference on Natural Language Generation, Tilburg University, The Netherlands, November 5-8, 2018. Association for Computational Linguistics; 2018:339-349. doi:10.18653/v1/w18-6541

Moussallem D, Castro Ferreira T, Zampieri M, et al. RDPT: Generating Brazilian Portuguese Texts from RDF Data. In: Calzolari N, Choukri K, Cieri C, et al., eds. Proceedings of the Eleventh International Conference on Language Resources and Evaluation, LREC 2018, Miyazaki, Japan, May 7-12, 2018. European Language Resources Association (ELRA); 2018.

Moussallem D, Ahmed Sherif M, Esteves D, Zampieri M, Ngonga Ngomo A-C. LIdioms: A Multilingual Linked Idioms Data Set. In: Calzolari N, Choukri K, Cieri C, et al., eds. Proceedings of the Eleventh International Conference on Language Resources and Evaluation, LREC 2018, Miyazaki, Japan, May 7-12, 2018. European Language Resources Association (ELRA); 2018.

Marx E, Saleem M, Lytra I, Ngonga Ngomo A-C. A Decentralized Architecture for SPARQL Query Processing and RDF Sharing: A Position Paper. In: 12th IEEE International Conference on Semantic Computing, ICSC 2018, Laguna Hills, CA, USA, January 31 - February 2, 2018. IEEE Computer Society; 2018:274-277. doi:10.1109/ICSC.2018.00049

Saleem M, Mehmood Q, Stadler C, Lehmann J, Ngonga Ngomo A-C. Generating SPARQL Query Containment Benchmarks Using the SQCFramework. In: van Erp M, Atre M, López V, Srinivas K, Fortuna C, eds. Proceedings of the ISWC 2018 Posters \'26; Demonstrations, Industry and Blue Sky Ideas Tracks Co-Located with 17th International Semantic Web Conference (ISWC 2018), Monterey, USA, October 8th - to - 12th, 2018. Vol 2180. CEUR Workshop Proceedings. CEUR-WS.org; 2018.

Hasnain A, Saleem M, Ngonga Ngomo A-C, Rebholz-Schuhmann D. Extending LargeRDFBench for Multi-Source Data at Scale for SPARQL Endpoint Federation. In: Liebig T, Fokoue A, Wu Z, eds. Proceedings of the 12th International Workshop on Scalable Semantic Web Knowledge Base Systems Co-Located with 17th International Semantic Web Conference, SSWS@ISWC 2018, Monterey, California, USA, October 9, 2018. Vol 2179. CEUR Workshop Proceedings. CEUR-WS.org; 2018:28-44.

Jiménez-Ruiz E, Saveta T, Zamazal O, et al. Introducing the HOBBIT platform into the ontology alignment evaluation campaign. In: Shvaiko P, Euzenat J, Jiménez-Ruiz E, Cheatham M, Hassanzadeh O, eds. Proceedings of the 13th International Workshop on Ontology Matching Co-Located with the 17th International Semantic Web Conference, OM@ISWC 2018, Monterey, CA, USA, October 8, 2018. Vol 2288. CEUR Workshop Proceedings. CEUR-WS.org; 2018:49-60.

Usbeck R, Ngonga Ngomo A-C, Conrads F, Röder M, Napolitano G. 8th Challenge on Question Answering over Linked Data (QALD-8) (invited paper). In: Choi K-S, Espinosa Anke L, Declerck T, et al., eds. Joint Proceedings of the 4th Workshop on Semantic Deep Learning (SemDeep-4) and NLIWo: 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. Vol 2241. CEUR Workshop Proceedings. CEUR-WS.org; 2018:51-57.

Usbeck R, Hari Gusmita R, Ngonga Ngomo A-C, Saleem M. 9th Challenge on Question Answering over Linked Data (QALD-9) (invited paper). In: Choi K-S, Espinosa Anke L, Declerck T, et al., eds. Joint Proceedings of the 4th Workshop on Semantic Deep Learning (SemDeep-4) and NLIWo: 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. Vol 2241. CEUR Workshop Proceedings. CEUR-WS.org; 2018:58-64.

Fathi Ahmed A, Ahmed Sherif M, Ngonga Ngomo A-C. RADON2 - a buffered-intersection matrix computing approach to accelerate link discovery over geo-spatial RDF knowledge bases: OA results. In: Shvaiko P, Euzenat J, Jiménez-Ruiz E, Cheatham M, Hassanzadeh O, eds. Proceedings of the 13th International Workshop on Ontology Matching Co-Located with the 17th International Semantic Web Conference, OM@ISWC 2018, Monterey, CA, USA, October 8, 2018. Vol 2288. CEUR Workshop Proceedings. CEUR-WS.org; 2018:197-204.

Hasnain A, Saleem M, Ngonga Ngomo A-C, Rebholz-Schuhmann D. Extending LargeRDFBench for Multi-Source Data at Scale for SPARQL Endpoint Federation. In: Demidova E, Zaveri A, Simperl E, eds. Emerging Topics in Semantic Technologies - ISWC 2018 Satellite Events [Best Papers from 13 of the Workshops Co-Located with the ISWC 2018 Conference]. Vol 36. Studies on the Semantic Web. IOS Press; 2018:203-218. doi:10.3233/978-1-61499-894-5-203

Saveta T, Fundulaki I, Flouris G, Ngonga Ngomo A-C. SPgenf: A Benchmark Generator for Spatial Link Discovery Tools. In: Vrandecic D, Bontcheva K, Carmen Suárez-Figueroa M, et al., eds. The Semantic Web - ISWC 2018 - 17th International Semantic Web Conference, Monterey, CA, USA, October 8-12, 2018, Proceedings, Part I. Vol 11136. Lecture Notes in Computer Science. Springer; 2018:408-423. doi:10.1007/978-3-030-00671-6‑24

G. Athreya R, Ngonga Ngomo A-C, Usbeck R. Enhancing Community Interactions with Data-Driven Chatbots-The DBpedia Chatbot. In: Champin P-A, Gandon F, Lalmas M, G. Ipeirotis P, eds. Companion of the The Web Conference 2018 on The Web Conference 2018, WWW 2018, Lyon , France, April 23-27, 2018. ACM; 2018:143-146. doi:10.1145/3184558.3186964

Wauer M, Ahmed Sherif M, Saleem M, et al., eds. 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. Vol 2110. CEUR-WS.org; 2018.

Choi K-S, Espinosa Anke L, Declerck T, et al., eds. Joint Proceedings of the 4th Workshop on Semantic Deep Learning (SemDeep-4) and NLIWo: 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. Vol 2241. CEUR-WS.org; 2018.

Soru T, Valdestilhas A, Marx E, Ngonga Ngomo A-C. Beyond Markov Logic: Efficient Mining of Prediction Rules in Large Graphs. CoRR. 2018;abs/1802.03638.

Moussallem D, Ahmed Sherif M, Esteves D, Zampieri M, Ngonga Ngomo A-C. LIDIOMS: A Multilingual Linked Idioms Data Set. CoRR. 2018;abs/1802.08148.