2023

• Le Gruenwald, Tobias Winker, Umut Çalıkyılmaz, Jinghua Groppe, Sven Groppe: Index Tuning with Machine Learning on Quantum Computers for Large-Scale Database Applications
  in: Joint Proceedings of Workshops at the 49th International Conference on Very Large Data Bases (VLDB 2023) - International Workshop on Quantum Data Science and Management (QDSM 23), Vancouver, Canada, 2023
  
• Umut Çalıkyılmaz, Sven Groppe, Jinghua Groppe, Tobias Winker, Stefan Prestel, Farida Shagieva, Daanish Arya, Florian Preis, Le Gruenwald: Opportunities for Quantum Acceleration of Databases: Optimization of Queries and Transaction Schedules
  in: Proc. VLDB Endow., 2023, Vol.16, (9), p.2344-2353
  
• Jinghua Groppe, Sven Groppe, Ralf Möller: Variables are a Curse in Software Vulnerability Prediction
  in: The 34th International Conference on Database and Expert Systems Applications (DEXA), Panang, Malaysia, 2023
  
• Hanieh Khorashadizadeh, Nandana Mihindukulasooriya, Sanju Tiwari, Jinghua Groppe, Sven Groppe: Exploring In-Context Learning Capabilities of Foundation Models for Generating Knowledge Graphs from Text
  in: CoRR, 2023, Vol.abs/2305.08804
  
• Hanieh Khorashadizadeh, Nandana Mihindukulasooriya, Sanju Tiwari, Jinghua Groppe, Sven Groppe: Exploring In-Context Learning Capabilities of Foundation Models for Generating Knowledge Graphs from Text
  in: Proceedings of the 2nd International Workshop on Knowledge Graph Generation From Text (Text2KG) in conjunction with the Extended Semantic Web Conference (ESWC 2023), Hersonissos, Greece, 2023
  

2022

• Jinghua Groppe, Rene Schlichting, Sven Groppe, Ralf Möller: Deep Learning-Based Classification of Customer Communications of a German Utility Company
  in: International Semantic Intelligence Conference (ISIC 2022), online, 2022
  
• Sven Groppe, Jinghua Groppe, Umut Çalıkyılmaz, Tobias Winker, Le Gruenwald: Quantum Data Management and Quantum Machine Learning for Data Management: State-of-the-Art and Open Challenges
  in: Proceedings of the EAI International Conference on Intelligent Systems and Machine Learning (EAI ICISML 2022), 2022
  
• Sven Groppe, Sanju Tiwari, Hanieh Khorashadizadeh, Jinghua Groppe, Tobias Groth, Farah Benamara, Soror Sahri: Short Analysis of the Impact of COVID-19 Ontologies
  in: International Semantic Intelligence Conference (ISIC 2022), online, 2022
  
• Sven Groppe, Jinghua Groppe, Tobias Groth: The role of Semantic Hybrid Multi-Model Multi-Platform (SHM3P) Databases for IoT
  in: Tools, Languages, Methodologies for Representing Semantics on the Web of Things, Shikha Mehta, Sanju Tiwari, Patrick Siarry, M.A Jabbar (Ed.), ISTE SCIENCE PUBLISHING Ltd, 2022
  

2021

• Sven Groppe, Jinghua Groppe: Optimizing Transaction Schedules on Universal Quantum Computers via Code Generation for Grover’s Search Algorithm
  in: Proceedings of the 25th International Database Engineering & Applications Symposium (IDEAS), Montreal, QC, Canada, 2021, Association for Computing Machinery (ACM), New York, NY, USA
  

2020

• Sven Groppe, Jinghua Groppe: Hybrid Multi-Model Multi-Platform (HM3P) Databases
  in: Proceedings of the 9th International Conference on Data Science, Technology and Applications (DATA), 2020
  

2011

• Sven Groppe, Jinghua Groppe, Stefan Werner, Matthias Samsel, Florian Kalis, Kristina Fell, Peter Kliesch, Markus Naklah: Using a Streaming SPARQL Evaluator for Monitoring eBay Auctions
  in: International Journal of Web Applications (IJWA), 2011, Vol.3, (4), p.166-178, Copyright: dline
  
• Jinghua Groppe, Sven Groppe: Accelerating Large Semantic Web Databases by Parallel Join Computations of SPARQL Queries
  in: ACM Applied Computing Review (ACR), 2011, Vol.11, (4), p.60-70, Copyright: ACM
  
• Sven Groppe, Jinghua Groppe, Stefan Werner, Matthias Samsel, Florian Kalis, Kristina Fell, Peter Kliesch, Markus Nakhlah: Monitoring eBay Auctions by querying RDF Streams
  in: Proceedings of the Sixth International Conference on Digital Information Management (ICDIM 2011), 2011, September 26 - 28, CPS, Trinity College, The University of Melbourne, Australia, p.223-228, Copyright: IEEE
  
• Jinghua Groppe, Sven Groppe, Andreas Schleifer: Visual Query Systems for Analyzing Social Semantic Web
  in: Proceedings of the 20th International World Wide Web Conference (WWW 2011), 2011, March 28 - April 1, ACM, Hyderabad, India, p.217-220, Copyright: ACM
  
• Jinghua Groppe, Sven Groppe: Parallelizing Join Computations of SPARQL Queries for Large Semantic Web Databases
  in: Proceedings of the 26th ACM Symposium on Applied Computing (ACM SAC 2011), 2011, March 21 - 25, William C. Chu, W. Eric Wong, Mathew J. Palakal, Chih-Cheng Hung (Ed.), ACM, TaiChung, Taiwan, p.1681-1686, Copyright: ACM
  
• Sven Groppe, Jinghua Groppe, Niklas Klein, Ralf Bettentrupp, Stefan Böttcher, Le Gruenwald: Transforming XSLT Stylesheets into XQuery Expressions and Vice Versa
  in: Computer Languages, Systems & Structures, An International Journal, 2011, Vol.37, (2), p.76-111, Copyright: Elsevier
  

2010

• Sven Groppe, Jinghua Groppe: External Sorting for Index Construction of Large Semantic Web Databases
  in: Proceedings of the 25th ACM Symposium on Applied Computing, Vol. II (ACM SAC 2010), 2010, March 22 - 26, Dongwan Shin, New Mexico Institute of Mining, Technology, United States (Ed.), ACM, Sierre, Switzerland, p.1373-1380, Copyright: ACM
  

2009

• Jinghua Groppe, Sven Groppe, Andreas Schleifer, Volker Linnemann: LuposDate: A Semantic Web Database System
  in: Proceedings of the 18th ACM Conference on Information and Knowledge Management (ACM CIKM 2009), 2009, November 2 - 6, ACM, Hong Kong, China, p.2083-2084, Copyright: ACM
  
• Sven Groppe, Jinghua Groppe, Dirk Müller: Result Merging Technique for Answering XPath Query over XSLT Transformed Data
  in: IEEE Transactions on Knowledge and Data Engineering (IEEE TKDE), 2009, Vol.21, (9), p.1328-1342, Copyright: IEEE
  
• Matthias Droop, Markus Flarer, Jinghua Groppe, Sven Groppe, Volker Linnemann, Jakob Pinggera, Florian Santner, Michael Schier, Felix Schöpf, Hannes Staffler, Stefan Zugal: Bringing the XML and Semantic Web Worlds Closer: Transforming XML into RDF and Embedding XPath into SPARQL
  in: Enterprise Information Systems, 10th International Conference, ICEIS 2008, Barcelona, Spain, June 12-16, 2008, Revised Selected Papers, Lecture Notes in Business Information Processing, Joaquim Filipe, José Cordeiro (Ed.), p.21-45, Springer, 2009, Copyright: Springer
  
• Jinghua Groppe, Sven Groppe, Jan Kolbaum: Optimization of SPARQL by Using coreSPARQL
  in: Proceedings of the 11th International Conference on Enterprise Information Systems, Volume DISI,(ICEIS 2009), 2009, Mai 6 - 10, José Cordeiro, Joaquim Filipe (Ed.), INSTICC, Milano, Italien, p.107-112, Copyright: INSTICC
  
• Sven Groppe, Jinghua Groppe, Christoph Reinke, Nils Hoeller, Volker Linnemann: XSLT: Common Issues with XQuery and Special Issues of XSLT
  in: Open and novel issues in XML database applications: future directions and advanced technologies, Eric Pardede (Ed.), p.108-135, IGI Global, 2009, Information Science Reference, USA/UK, Copyright: IGI Global
  
• Jinghua Groppe, Sven Groppe, Sebastian Ebers, Volker Linnemann: Efficient Processing of SPARQL Joins in Memory by Dynamically Restricting Triple Patterns
  in: Proceedings of the 24th ACM Symposium on Applied Computing (ACM SAC 2009), 2009, March 8 - 12, ACM, Honolulu, Hawaii, USA, p.1231-1238, Copyright: ACM
  
• Sven Groppe, Jinghua Groppe, Stefan Boettcher, Thomas Wycisk, Le Gruenwald: Optimizing the Execution of XSLT Stylesheets for Querying Transformed XML Data
  in: Knowledge and Information Systems (KAIS), An International Journal, 2009, Vol.18, (3), p.331-391, Copyright: Springer-Verlag, London Limited
  

2008

• Sven Groppe, Jinghua Groppe: Output Schemas of XSLT Stylesheets and their Applications
  in: Information Sciences Journal, 2008, Vol.178, (21), p.3989-4018, Copyright: Elsevier
  
• Matthias Droop, Markus Flarer, Jinghua Groppe, Sven Groppe, Volker Linnemann, Jakob Pinggera, Florian Santner, Michael Schier, Felix Schoepf, Hannes Staffler, Stefan Zugal: Embedding XPATH Queries into SPARQL Queries
  in: Proceedings of the 10th International Conference on Enterprise Information Systems, Volume DISI, (ICEIS 2008), 2008, June 12 - 16, José Cordeiro, Joaquim Filipe (Ed.), INSTICC, Barcelona, Spain, p.5-14, Copyright: INSTICC
  
• Jinghua Groppe, Volker Linnemann: Discovering Veiled Unsatisfiable XPath Queries
  in: Proceedings of the 10th International Conference on Enterprise Information Systems, Volume DISI, (ICEIS 2008), 2008, June 12 - 16, José Cordeiro, Joaquim Filipe (Ed.), INSTICC, Barcelona, Spain, p.149-158, Copyright: INSTICC
  
• Sven Groppe, Jinghua Groppe, Stefan Böttcher: Simplifying XPath Queries for optimization with regard to the elimination of intersect and except operators
  in: Data & Knowledge Engineering, 2008, May, Vol.65, (2), p.198-222, special Section: 3rd XML Schema and Data Management Workshop (XSDM 2006) in conjunction with IEEE ICDE 2006 – Five selected and extended papers, Copyright: Elsevier B.V.
  
• Sven Groppe, Jinghua Groppe, Volker Linnemann, Dirk Kukulenz, Nils Hoeller, Christoph Reinke: Embedding SPARQL into XQuery / XSLT
  in: Proceedings of the 23rd ACM Symposium on Applied Computing (ACM SAC 2008), 2008, March 16 - 20, Roger L. Wainwright, Hisham Haddad (Ed.), ACM, Fortaleza, Ceara, Brasilien, p.2271-2278, Copyright: ACM
  
• Jinghua Groppe, Sven Groppe: Filtering unsatisfiable XPath queries
  in: Data & Knowledge Engineering, 2008, January, Vol.64, (1), p.134-169, special issue with selected papers from the 8th International Conference on Enterprise Information Systems (ICEIS’ 2006), Copyright: Elsevier
  

2007

• Sven Groppe, Jinghua Groppe, Dirk Kukulenz, Volker Linnemann: A SPARQL Engine for Streaming RDF Data
  in: Proceedings 3rd International Conference on Signal-Image Technology & Internet-Based Systems (SITIS 2007), 2007, December 16 - 19, Shanghai, China, This paper received an honorable mention at the SITIS 07 Conference., p.154-161, Copyright: IEEE
  
• Matthias Droop, Markus Flarer, Jinghua Groppe, Sven Groppe, Volker Linnemann, Jakob Pinggera, Florian Santner, Michael Schier, Felix Schöpf, Hannes Staffler, Stefan Zugal: Translating XPath Queries into SPARQL Queries
  in: On the Move to Meaningful Internet Systems (OTM 2007), OTM Workshops Part I: DOA, ODBASE, CoopIS, GADA, IS, 2007, November 27 - 29, Springer-Verlag, Vilamoura, Algarve, Portugal, Lecture Notes in Computer Science (LNCS), Vol.4805, p.9-10, Copyright: Springer-Verlag
  
• Sven Groppe, Jinghua Groppe, Volker Linnemann: How to Determine Output Schemas of XQuery Queries
  in: Proceedings 24th British National Conference on Databases, BNCOD Workshop on Web Information Management (BNCODwebim 2007), 2007, July 2 - 3, IEEE, Glasgow, Great Britain, p.130-139, Copyright: IEEE
  
• Sven Groppe, Jinghua Groppe, Volker Linnemann: Using an Index of Precomputed Joins in order to speed up SPARQL Processing
  in: Proceedings 9th International Conference on Enterprise Information Systems (ICEIS 2007 (1), Volume DISI), 2007, June 12 - 16, Jorge Cardoso, José Cordeiro, Joaquim Filipe (Ed.), INSTICC, Funchal, Madeira, Portugal, p.13-20, Copyright: INSTICC