Altan Birler, M.Sc.

Address: Technische Universität München
Institut für Informatik – Lehrstuhl XXV (I25)
Boltzmannstr. 3
85748 Garching
Room: 02.11.041
Phone: +49 (0)89 / 289-17288
E-Mail: altan.birler@tum.de
Office Hours: Monday 3-4 p.m.

Research Area

  • Umbra: A Disk-Based System with In-Memory Performance
  • Query optimization
  • Cardinality estimation

Publications & Awards

Adaptive Join Processing with No Prior Statistics
Team SortMergeJoins
SIGMOD Programming Contest 2025
First Place
Efficient Enumeration of the Complete Join Search Space
Altan Birler, Thomas Neumann
DBPL 2025 at SIGMOD 2025
Optimizing Linearized Join Enumeration by Adapting to the Query Structure
Altan Birler, Mihail Stoian, Thomas Neumann
BTW 2025
Best Paper Award
Trampoline-Style Queries for SQL
Louisa Lambrecht, Torsten Grust, Altan Birler, Thomas Neumann
CIDR 2025
Robust Join Processing with Diamond Hardened Joins
Altan Birler, Alfons Kemper, Thomas Neumann
VLDB 2024
Simple, Efficient, and Robust Hash Tables for Join Processing
Altan Birler, Tobias Schmidt, Philipp Fent, Thomas Neumann
DaMoN'24 at SIGMOD 2024
Best Paper Award
The LDBC Social Network Benchmark: Business Intelligence Workload.
Gábor Szárnyas, Jack Waudby, Benjamin A. Steer, Dávid Szakállas, Altan Birler, Mingxi Wu, Yuchen Zhang, Peter A. Boncz
VLDB 2023
Best Experiment, Analysis, & Benchmark Paper Award
Communication-Optimal Parallel Reservoir Sampling
Christian Winter, Moritz Sichert, Altan Birler, Thomas Neumann, Alfons Kemper
BTW 2023
Practical Planning and Execution of Groupjoin and Nested Aggregates
Philipp Fent, Altan Birler, Thomas Neumann
VLDB Journal 2022
Concurrent online sampling for all, for free
Altan Birler, Bernhard Radke, Thomas Neumann
DaMoN 2020
Scalable Reservoir Sampling on Many-Core CPUs
Altan Birler
SIGMOD 2019 Student Research Competition

Teaching

WS 23/24: Query Optimization
SS 23: Seminar: Modern Database Systems
WS 22/23: Query Optimization
SS 22: Seminar: Modern Database Systems

 

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