ATrie Group Join: A Parallel Star Group Join and Aggregation for In-Memory Column-Stores

2020 ◽  
pp. 1-1
Author(s):  
Prajwol Sangat ◽  
David Taniar ◽  
Christopher Messom
Keyword(s):  
Star Group ◽  
Column Stores

A Data Reusing Strategy Based on Column-Stores

2013 ◽  
Author(s):  
Mei Wang ◽  
Jiaoling Zhou ◽  
Yue Li ◽  
Xiaoling Xia ◽  
Jiajin Le
Keyword(s):  
Column Stores

scholarly journals LEA: A Learned Encoding Advisor for Column Stores

2021 ◽  
Author(s):  
Lujing Cen ◽  
Andreas Kipf ◽  
Ryan Marcus ◽  
Tim Kraska
Keyword(s):  
Column Stores

LDI: Learned Distribution Index for Column Stores

2021 ◽  
Author(s):  
Dai-Hai Ton That ◽  
Mohammadsaleh Gharehdaghi ◽  
Alexander Rasin ◽  
Tanu Malik
Keyword(s):  
Distribution Index ◽  
Column Stores

Relational Data Access for Business Data Analytics

2014 ◽  
pp. 2020-2027
Author(s):  
Veit Köppen ◽  
Andreas Lübcke
Keyword(s):  
Time Horizon ◽  
Architectural Design ◽  
Response Times ◽  
Data Access ◽  
Transactional Analysis ◽  
Business Analytics ◽  
Weight Analysis ◽  
Analytical Processing ◽  
Architectural Decision ◽  
Column Stores

The growing amount of data enables more complex business analytics. Data for business analytics is stored in databases or data warehouses. Analysts want to execute their queries under requirements in a suitable time horizon. An architectural decision has a significant influence on response times. Therefore, it is necessary not only to identify and weight analysis tasks, but also to decide on the storage architecture. The architectural design influences the query execution time up to factor 100. We present both architectures and their influence on the database workload. Classic row stores perform better on transactional analysis and column stores outperform the other in simple online analytical processing.

scholarly journals Short-Term Variations of LBV’s

1999 ◽  
Vol 169 ◽  
pp. 251-254
Author(s):  
Otmar Stahl
Keyword(s):  
Time Scales ◽  
Monitoring Program ◽  
Short Term ◽  
Star Group ◽  
Different Time Scales

LBV’s are variable on many different time scales from weeks to years or even decades. The typical LBV variations on timescales of years or longer are covered in the paper by Humphreys (this volume). Here I discuss variations of LBV’s on timescales from weeks to years.Most classes of stars are little studied on these timescales. This also holds true for LBV’s. Therefore the hot star group of the Landessternwarte Heidelberg Started a monitoring program of a few bright LBV’s (and other objects) using the 70cm-telescopes at the Landessternwarte and later the ESO 50cm-telescope at La Silla. For more details about the project see the paper by Kaufer (this volume).

Speeding Up Queries in Column Stores

2010 ◽  
pp. 117-129 ◽  
Author(s):  
Christian Lemke ◽  
Kai-Uwe Sattler ◽  
Franz Faerber ◽  
Alexander Zeier
Keyword(s):  
Column Stores

Highspeed Graph Processing Exploiting Main-Memory Column Stores

2015 ◽  
pp. 503-514 ◽  
Author(s):  
Matthias Hauck ◽  
Marcus Paradies ◽  
Holger Fröning ◽  
Wolfgang Lehner ◽  
Hannes Rauhe
Keyword(s):  
Main Memory ◽  
Graph Processing ◽  
Column Stores

Optimization of conjunctive predicates for main memory column stores

2016 ◽  
Vol 9 (12) ◽  
pp. 1125-1136 ◽  
Author(s):  
Fisnik Kastrati ◽  
Guido Moerkotte
Keyword(s):  
Main Memory ◽  
Column Stores
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