2023

• Benjamin Warnke, Stefan Fischer, Sven Groppe: Using Machine Learning and Routing Protocols for Optimizing Distributed SPARQL Queries in Collaboration
  in: Computers, 2023, Vol.12, (10)
  
• Nitin Nayak, Jan Rehfeld, Tobias Winker, Benjamin Warnke, Umut Çalıkyılmaz, Sven Groppe: Constructing Optimal Bushy Join Trees by Solving QUBO Problems on Quantum Hardware and Simulators
  in: Proceedings of the International Workshop on Big Data in Emergent Distributed Environments (BiDEDE), Seattle, WA, USA, 2023
  
• Benjamin Warnke, Stefan Fischer, Sven Groppe: Distributed SPARQL Queries in Collaboration with the Routing Protocol
  in: Proceedings of the 27th International Database Engineered Applications Symposium (IDEAS), Heraklion, Crete, Greece, 2023
  

2022

• Benjamin Warnke, Johann Mantler, Sven Groppe, Yuri Cotrado Sehgelmeble, Stefan Fischer: A SPARQL Benchmark for Distributed Databases in IoT Environments
  in: Proceedings of The International Workshop on Big Data in Emergent Distributed Environments: BiDEDE 22, 2022, Association for Computing Machinery, New York, NY, USA
  :

  @inproceedings{WarnkeMantlerGroppeSehgelmebleFischer2022,
  author = {Benjamin Warnke and Johann Mantler and Sven Groppe and Yuri Cotrado Sehgelmeble and Stefan Fischer},
  title = {{A SPARQL Benchmark for Distributed Databases in IoT Environments}},
  booktitle = {Proceedings of The International Workshop on Big Data in Emergent Distributed Environments: BiDEDE '22},
  location = {Philadelphia, Pennsylvania},
  year = {2022},
  articleno = {5},
  numpages = {6},
  isbn = {9781450393461},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  url = {https://doi.org/10.1145/3530050.3532929},
  keywords = {DB indexing strategie, DB metrics, simulator, data distribution, network transmission volume, DB index distribution, benchmark, (s)IoT database, multi hop network topology},
  abstract = {Data transmission is one of the biggest energy consumers in low power networks. So, any application running in such environment must reduce the volume of communication caused by its presence. We want to deploy our database on a wireless sensor network. Therefore, we want to gain insights into the interoperability between routing and application in order to reduce communication costs. To do this, we propose our new benchmark framework in this contribution. Using this benchmark framework, we compare state-of-the-art database indexes and how much traffic they cause in a fully distributed environment. We believe that computing speed shouldn't be the only metric to compare databases with each other. If the database uses fewer resources, the actual application has more resources available.}
  }

• Benjamin Warnke, Yuri Cotrado Sehgelmeble, Johann Mantler, Sven Groppe, Stefan Fischer: SIMORA: SIMulating Open Routing protocols for Application interoperability on edge devices
  in: 2022 IEEE 6th International Conference on Fog and Edge Computing (ICFEC), 2022, May, Taormina (Messina), Italy, p.42-49
  

2021

• Sven Groppe, Rico Klinckenberg, Benjamin Warnke: Generating Sound from the Processing in Semantic Web Databases
  in: Open Journal of Semantic Web (OJSW), 2021, Vol.8, (1), p.1-27
  
• Sven Groppe, Rico Klinckenberg, Benjamin Warnke: Sound of Databases: Sonification of a Semantic Web Database Engine
  in: Proc. VLDB Endow., 2021, Vol.14, (12), p.2695-2698
  
• Benjamin Warnke, Muhammad Waqas Rehan, Stefan Fischer, Sven Groppe: Flexible data partitioning schemes for parallel merge joins in semantic web queries
  in: Datenbanksysteme für Business, Technologie und Web (BTW), 19. Fachtagung des GI-Fachbereichs Datenbanken und Informationssysteme, Dresden, Germany, 2021, Gesellschaft für Informatik, Bonn, LNI, Vol.P-311, this publication received the label Results Reproduced, p.237-256