315 search results - page 4 / 63 » An Overview of Query Optimization in Relational Systems |
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
Today's query processing engines do not take advantage of the multiple occurrences of a relation in a query to improve performance. Instead, each instance is treated as a dis...
PAKDD
2005
ACM
14 years 29 days ago
2005
ACM
Traditional multiple query optimization methods focus on identifying common subexpressions in sets of relational queries and on constructing their global execution plans. In this p...
DEBS
2011
ACM
2011
ACM
DejaVu: a complex event processing system for pattern matching over live and historical data streams
12 years 11 months ago
This short paper provides an overview of the DejaVu complex event processing (CEP) system, with an emphasis on its novel architecture and query optimization techniques for correla...
VLDB
1989
ACM
13 years 11 months ago
1989
ACM
: We describe the architecture of a relational databasesystem that is extensible by user-defined data types and operations, including relation operations. The central concept is to...
ADVIS
2004
Springer
14 years 26 days ago
2004
Springer
Data mining is an interactive and iterative process. Users issue series of similar queries until they receive satisfying results, yet currently available data mining systems do not...