Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Krause, Alexander"'
Query execution techniques in database systems constantly adapt to novel hardware features to achieve high query performance, in particular for analytical queries. In recent years, vectorization based on the Single Instruction Multiple Data parallel
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A91537
https://tud.qucosa.de/api/qucosa%3A91537/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A91537/attachment/ATT-0/
The Single Instruction Multiple Data (SIMD) paradigm became a core principle for optimizing query processing in columnar database systems. Until now, only the LOAD/STORE instructions are considered to be efficient enough to achieve the expected speed
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A89288
https://tud.qucosa.de/api/qucosa%3A89288/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A89288/attachment/ATT-0/
Hybrid memory systems consisting of DRAM and NVRAM offer a great opportunity for column-oriented data systems to persistently store and to efficiently process columnar data completely in main memory. While vectorization (SIMD) of query operators is s
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A76671
https://tud.qucosa.de/api/qucosa%3A76671/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A76671/attachment/ATT-0/
The Single Instruction Multiple Data (SIMD) parallel paradigm is a well-established and heavily-used hardware-driven technique to increase the single-thread performance in different system domains such as database or machine learning. Depending on th
Externí odkaz:
http://arxiv.org/abs/2407.18728
Autor:
Habich, Dirk, Damme, Patrick, Ungethüm, Annett, Pietrzyk, Johannes, Krause, Alexander, Hildebrandt, Juliana, Lehner, Wolfgang
In this demo, we present MorphStore, an in-memory column store with a novel compression-aware query processing concept. Basically, compression using lightweight integer compression algorithms already plays an important role in existing in-memory colu
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A80634
https://tud.qucosa.de/api/qucosa%3A80634/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A80634/attachment/ATT-0/
NeMeSys is a NUMA-aware graph pattern processing engine, which uses the Near Memory Processing paradigm to allow for high scalability. With modern server systems incorporating an increasing amount of main memory, we can store graphs and compute analy
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A80636
https://tud.qucosa.de/api/qucosa%3A80636/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A80636/attachment/ATT-0/
Pattern matching on large graphs is the foundation for a variety of application domains. The continuously increasing size of the underlying graphs requires highly parallel in-memory graph processing engines that need to consider non-uniform memory ac
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A86492
https://tud.qucosa.de/api/qucosa%3A86492/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A86492/attachment/ATT-0/
Autor:
Ungethüm, Annett, Damme, Patrick, Pietrzyk, Johannes, Krause, Alexander, Habich, Dirk, Lehner, Wolfgang
Energy consumption becomes more and more a critical design factor, whereby performance is still an important requirement. Thus, a balance between performance and energy has to be established. To tackle that issue for database systems, we proposed the
Externí odkaz:
https://tud.qucosa.de/id/qucosa%3A83912
https://tud.qucosa.de/api/qucosa%3A83912/attachment/ATT-0/
https://tud.qucosa.de/api/qucosa%3A83912/attachment/ATT-0/
Autor:
Amft, Sabrina, Höltervennhoff, Sandra, Huaman, Nicolas, Krause, Alexander, Simko, Lucy, Acar, Yasemin, Fahl, Sascha
Multi-Factor Authentication is intended to strengthen the security of password-based authentication by adding another factor, such as hardware tokens or one-time passwords using mobile apps. However, this increased authentication security comes with
Externí odkaz:
http://arxiv.org/abs/2306.09708
Autor:
Krause, Alexander, Klemmer, Jan H., Huaman, Nicolas, Wermke, Dominik, Acar, Yasemin, Fahl, Sascha
Version control systems for source code, such as Git, are key tools in modern software development environments. Many developers use online services, such as GitHub or GitLab, for collaborative software development. While software projects often requ
Externí odkaz:
http://arxiv.org/abs/2211.06213