2145 search results - page 251 / 429 » Pattern-Based Query Answering |
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off b...
PODS
2000
ACM
14 years 2 months ago
2000
ACM
In a variety of applications ranging from optimizing queries on alphanumeric attributes to providing approximate counts of documents containing several query terms, there is an in...
DEXA
2007
Springer
14 years 1 months ago
2007
Springer
The two dominant costs in continuous spatial query systems are the wireless communication cost for location update, and the evaluation cost for query processing. Existing works add...
DASFAA
2010
IEEE
14 years 1 months ago
2010
IEEE
This paper studies a new query on uncertain data, called k-selection query. Given an uncertain dataset of N objects, where each object is associated with a preference score and a p...
ICDE
2007
IEEE
14 years 4 months ago
2007
IEEE
Data Stream Management Systems are useful when large volumes of data need to be processed in real time. Examples include monitoring network traffic, monitoring financial transacti...