116 search results - page 16 / 24 » Database querying under changing preferences |
GVD
2003
13 years 8 months ago
2003
Several mapping schemes have recently been proposed to store XML data in relational tables. Relational database systems are readily available and can handle vast amounts of data v...
ICDE
2008
IEEE
14 years 8 months ago
2008
IEEE
Applications that monitor functions over rapidly and unpredictably changing data, express their needs as continuous queries. Our focus is on a rich class of queries, expressed as p...
ICDE
2006
IEEE
14 years 8 months ago
2006
IEEE
Database columns are often correlated, so that cardinality estimates computed by assuming independence often lead to a poor choice of query plan by the optimizer. Multidimensional...
ICDE
2008
IEEE
14 years 8 months ago
2008
IEEE
Freshness and accuracy are two key measures of quality of service (QoS) in location-based, mobile continual queries (CQs). However, it is often difficult to provide both fresh and ...
IDEAS
2005
IEEE
14 years 1 months ago
2005
IEEE
A substantial subset of the web data follows some kind of underlying structure. Nevertheless, HTML does not contain any schema or semantic information about the data it represents...