1846 search results - page 107 / 370 » Generating query substitutions |
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
Query optimizers use base-table statistics to derive statistics on the sub-plans that are enumerated during optimization. In practice, traditional optimizers rely on a number of s...
ICDE
2005
IEEE
14 years 1 months ago
2005
IEEE
Abstract— Distributed stream-based applications, such as continuous query systems, have network scale and time characteristics that challenge traditional distributed query optimi...
ATAL
2004
Springer
14 years 1 months ago
2004
Springer
Most people have long term information interests. Current Web search engines satisfy immediate information needs. Specific sites support tracking of long term interests. We prese...
WEBDB
2000
Springer
13 years 11 months ago
2000
Springer
Many text databases on the web are "hidden" behind search interfaces, and their documents are only accessible through querying. Search engines typically ignore the conte...
APPT
2005
Springer
13 years 9 months ago
2005
Springer
It is difficult to maintain the exact location of mobile objects due to the limited resources in a mobile network. A consequence of this problem is that the update cost for a locat...