Contact
| Address: | TU Dortmund University Department of Computer Science DBIS Group Otto-Hahn-Strasse 20 Room 1.14 44227 Dortmund, Germany |
| Phone: | +49 231 755 6481 |
| Email: | jens.teubner@cs.tu-dortmund.de |
| Web: | http://people.inf.ethz.ch/jteubner/ |
News
I'm in the middle of moving to TU Dortmund University. You find my new coordinates above. Stay tuned for my new web presence.
Research
I invest most of my research energy into Avalanche, a project
that I ramped up within the
Systems Group here at ETH.
In Avalanche, I look at how modern hardware technologies can
be used effectively to accelerate or otherwise improve database
processing. For instance, the Glacier query compiler that I
built together with René Müller and Louis Woods takes
advantages of the potential offered by field-programmable gate arrays
(FPGAs) and applies that in a data streaming context; our
hardware-accelerated solution to the frequent item problem
significantly outperforms all existing (software) solutions.
The success of Avalanche has been acknowledged by the Swiss National Science
Foundation, which sponsors me with one of the prestigious
Ambizione
grants for young researchers.
The transport mechanisms offered by modern network cards that support remote direct memory access (RDMA) significantly shift the priorities in distributed systems. Together with Philip Frey, I developed the RDMA-part of Data Cyclotron, a research effort that I work on jointly with the database group at CWI Amsterdam. Based on a simple ring-shaped topology and an RDMA-accelerated network, Data Cyclotron offers ad-hoc querying over data of arbitrary shape and arbitrary size.
Much of my past research work has revolved around the Pathfinder XQuery compiler. Pathfinder compiles expressions from the W3C XQuery language into a text book-style relational algebra, enabling traditional relational database back-ends to operate as high-performance XQuery processors. Pathfinder is distributed as MonetDB/XQuery, together with its primary database back-end MonetDB. In addition, Pathfinder provides support for SQL:1999-compliant databases, as well as for the commercial main-memory database kdb+.
Curriculum Vitae
Grants and Awards
- Our paper Parallel Computation of Skyline Queries received the best paper award at FCCM 2013.
- Our paper Main-Memory Hash Joins on Multi-Core CPUs: Tuning to the Underlying Hardware received a runner-up award for the best paper at ICDE 2013.
- Our demo Snowfall: Hardware Stream Analysis Made Easy was awarded with the Best Demo Award at the BTW 2011 conference in Kaiserslautern, Germany.
- In fall 2009, I received one of the prestigious Ambizione grants of the Swiss National Science Foundation. The grant covers roughly CHF 400,000 over three years.
- I received the 2007 BTW Dissertation Award. Every second year, the database section of the German Gesellschaft für Informatik honors outstanding PhD dissertations in the database domain.
Activities
More Information
Refer to my publications and teaching pages for further information about me.