782 search results - page 107 / 157 » Query interactions in database workloads |
225
click to vote
VLDB
2007
ACM
16 years 2 months ago
2007
ACM
We present STAR, a self-tuning algorithm that adaptively sets numeric precision constraints to accurately and efficiently answer continuous aggregate queries over distributed data...
134
click to vote
EDBT
2004
ACM
16 years 2 months ago
2004
ACM
Abstract. Hierarchical clustering has been proved an effective means for physically organizing large fact tables since it reduces significantly the I/O cost during ad hoc OLAP quer...
153
click to vote
SOSP
2009
ACM
15 years 11 months ago
2009
ACM
Data-intensive applications are increasingly designed to execute on large computing clusters. Grouped aggregation is a core primitive of many distributed programming models, and i...
129
click to vote
EUROPAR
2005
Springer
15 years 8 months ago
2005
Springer
Abstract. We present PerfMiner, a system for the transparent collection, storage and presentation of thread-level hardware performance data across an entire cluster. Every sub-proc...
117
click to vote
EDBT
2000
ACM
15 years 6 months ago
2000
ACM
OLAP applications use precomputation of aggregate data to improve query response time. While this problem has been well-studied in the recent database literature, to our knowledge ...