Viktor Leis, M.Sc.

Address: Technische Universität München
Institut für Informatik – Lehrstuhl III (I3)
Boltzmannstr. 3
85748 Garching
Room:
Raumplan
02.11.043
Phone: +49 (0)89 / 289-17286
Fax: +49 (0)89 / 289-17263
E-Mail: leis@in.tum.de
Office Hours: Please call/mail ahead for an appointment

Research Interests

  • In-memory database management systems
  • HyPer
  • Query Optimization

Publications

The ART of Practical Synchronization
Viktor Leis, Florian Scheibner, Alfons Kemper, Thomas Neumann, DaMoN 2016 (pdf) (source code)
How Good Are Query Optimizers, Really?
Viktor Leis, Andrey Gubichev, Atanas Mirchev, Peter Boncz, Alfons Kemper, Thomas Neumann, VLDB 2016 (pdf) (JOB benchmark)
Efficient Processing of Window Functions in Analytical SQL Queries
Viktor Leis, Kan Kundhikanjana, Alfons Kemper, Thomas Neumann, VLDB 2015 (pdf)
Scaling HTM-Supported Database Transactions to Many Cores
Viktor Leis, Alfons Kemper, Thomas Neumann, TKDE (pdf)
Morsel-Driven Parallelism: A NUMA-Aware Query Evaluation Framework for the Many-Core Age
Viktor Leis, Peter Boncz, Alfons Kemper, Thomas Neumann, SIGMOD 2014 (pdf)
Exploiting Hardware Transactional Memory in Main-Memory Databases
Viktor Leis, Alfons Kemper, Thomas Neumann, ICDE 2014, Best Paper Award (pdf)
HyPer Beyond Software: Exploiting Modern Hardware for Main-Memory Database Systems
Florian Funke, Alfons Kemper, Tobias Mühlbauer, Thomas Neumann, Viktor Leis, Datenbank Spektrum
Compiling Database Queries into Machine Code
Thomas Neumann, Viktor Leis, Data Engineering Bulletin, March 2014 (pdf)
Massively Parallel NUMA-aware Hash Joins
Harald Lang, Viktor Leis, Martina-Cezara Albutiu, Thomas Neumann, Alfons Kemper, IMDM Workshop 2013
Transaction Processing in the Hybrid OLTP&OLAP Main-Memory Database System HyPer
Alfons Kemper, Thomas Neumann, Jan Finis, Florian Funke, Viktor Leis, Henrik Mühe, Tobias Mühlbauer, Wolf Rödiger, Data Engineering Bulletin, June 2013
The Adaptive Radix Tree: ARTful Indexing for Main-Memory Databases
Viktor Leis, Alfons Kemper, Thomas Neumann, ICDE 2013 (pdf) (source code) (ANSI C implementation by Armon Dadgar)
Hyper: Adapting Columnar Main-Memory Data Management for Transactional AND Query Processing
Alfons Kemper, Thomas Neumann, Florian Funke, Viktor Leis, Henrik Mühe, Data Engineering Bulletin, March 2012
Effective and Robust Pruning for Top-Down Join Enumeration Algorithms
Pit Fender, Guido Moerkotte, Thomas Neumann, Viktor Leis, ICDE 2012

Teaching