Fakultät für Informatik TU München - Fakultät für Informatik
Lehrstuhl III: Datenbanksysteme
Technische Universität München
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The StreamGlobe Project


New data-intensive applications where the data is not modeled as persistent relations but rather as transient data streams become more and more important. Examples of such applications are monitoring financial, network, or telecommunications data, processing of data delivered by sensor networks, and others. New techniques are needed for these applications as the data stream model is incompatible with many traditional query processing techniques because of the possibly unbounded size and read-once nature of data streams.

Research topics

  • XML data streams
  • Semantics of data streams and new data stream operators
  • Application of traditional query operators on data streams
  • Efficient dissemination of data streams
  • Continuous queries on data streams and routing of data streams
  • Query optimization and execution in the presence of data streams
  • Architecture of distributed data stream processing systems
  • Peer-to-Peer technologies in data stream systems

Current status

We are currently implementing a first distributed data stream management system. It will serve as the research platform for future and current research directions mentioned above.


  • Richard Kuntschke and Alfons Kemper
    Data Stream Sharing
    Current Trends in Database Technology - EDBT 2006
    EDBT 2006 Workshop PhD, DataX, IIDB, IIHA, ICSNW, QLQP, PIM, PaRMa, and Reactivity on the Web, Munich, Germany, March 26-31, 2006, Revised Selected Papers
    Lecture Notes in Computer Science (LNCS), Vol. 4254, pp. 769-788
  • Richard Kuntschke and Alfons Kemper
    Data Stream Sharing
    Proceedings of the 2nd International Workshop on Pervasive Information Management (PIM 2006),
    March 30, 2006, Munich, Germany
    Presentation: [PowerPoint] · [PDF]
  • Richard Kuntschke, Bernhard Stegmaier, and Alfons Kemper
    Data Stream Sharing
    Technical Report TUM-I0504, Technische Universität München, April 2005

Current projects

  • Efficient dissemination of data streams in a distributed Publish&Subscribe architecture
  • Processing and optimizing queries on structured data streams

Past projects

Related projects

Informatikjahr 2006



  • Benjamin Gufler
  • Prof. Alfons Kemper, Ph.D.
  • Richard Kuntschke
  • Dr. Angelika Reiser
  • Tobias Scholl

  • Students:

    • Atanas Gegov
    • Valentin Georgiev Shopov

    Cooperation Partners:

    Former Staff Members:

    Former Student Members:

    • Markus Ast
    • Thomas Bachmann
    • Pawel Brzakala
    • Bo Feng
    • Andreas Fuchs
    • Markus Gerstel
    • Franz Häuslschmid
    • René Pfeuffer
    • Stefan Puchner
    • Alfons Ruch
    • Michael Seibold

    Lehrstuhl für Datenbanksysteme
    Letzte Änderung: 19.07.2013 um 14:18:40