315 search results - page 40 / 63 » An Overview of Query Optimization in Relational Systems |
SIGECOM
2010
ACM
14 years 11 days ago
2010
ACM
Product recommendation and decision support systems must generally develop a model of user preferences by querying or otherwise interacting with a user. Recent approaches to elici...
PODS
1999
ACM
13 years 12 months ago
1999
ACM
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...
EDBTW
2006
Springer
13 years 11 months ago
2006
Springer
Several query languages have been proposed for managing data streams in modern monitoring applications. Continuous queries expressed in these languages usually employ windowing con...
ISNN
2010
Springer
14 years 10 days ago
2010
Springer
Preference elicitation (PE) is an important component of interactive decision support systems that aim to make optimal recommendations to users by actively querying their preferen...
ER
2008
Springer
13 years 9 months ago
2008
Springer
Access limitations may occur when querying data sources over the web or heterogeneous data sources presented as relational tables: this happens, for instance, in Data Exchange and ...