3225 search results - page 129 / 645 » Query Optimization by Stored Queries |
VLDB
2001
ACM
14 years 9 months ago
2001
ACM
SIGMOD
2008
ACM
14 years 9 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...
IS
2011
13 years 3 months ago
2011
In order to process continuous queries over Wireless Sensor Networks (WSNs), sensors are typically organized in a Query Routing Tree (denoted as T) that provides each sensor with ...
SIGIR
2005
ACM
14 years 2 months ago
2005
ACM
Previous research into the efficiency of text retrieval systems has dealt primarily with methods that consider inverted lists in sequence; these methods are known as term-at-a-tim...
ICDCS
2002
IEEE
14 years 1 months ago
2002
IEEE
Recent technology advances have enabled mediated query processing with Internet accessible WebSources. A characteristic of WebSources is that their access costs exhibit transient ...