Dexter (Dresden Index for Transactional Access on Emerging Technologies)

Index structures are core components of typical database management systems. While this area has been studied for a long time, many aspects need to be reconsidered in the context of modern hardware architectures. The focus of DEXTER is to design an indexing system for main-memory data that exploits emerging technologies. DEXTER offers a well-balanced read/write performance that suits for high update rates and mixed workloads required for e.g., operational BI applicatiion.

The DEXTER project comprises the follwoing sub projects:

• Core Indexing Structure and Techniques

• Query Processing on Prefix Trees

• DEXTER for other Platforms

People

• Team Members
  • Dipl.-Ing. Thomas Kissinger
  • Dr.-Ing. Matthias Böhm
  • Dipl.-Inf. Peter Benjamin Volk
  • Dipl.-Inf. Benjamin Schlegel
• Advisors
  • Prof. Dr.-Ing. Wolfgang Lehner
  • Dr.-Ing. Dirk Habich

Publications

• In-Memory Indexing:
  • M. Böhm, B. Schlegel, P. B. Volk, U. Fischer, D. Habich, W. Lehner: Efficient In-Memory Indexing with Generalized Prefix Trees; In: Proceedings der 14. GI-Fachtagung für Datenbanksysteme in Business, Technology und Web (BTW 2011, February 28 - March 4 2011, Kaiserslautern, Germany), 2011, PDF, Talk.
• In-Memory Query Processing
  • M. Böhm, P. Lehmann, P. B. Volk, W. Lehner: Query Processing on Prefix Trees; In: Proceedings of the Fall 2010 Future SOC Lab Day (HPI Technical Report), 2011, PDF, Link.