5856 search results - page 386 / 1172 » Developing Query Patterns |
238
click to vote
SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...
161
click to vote
SIGMOD
2003
ACM
16 years 4 months ago
2003
ACM
Many applications employ sensors for monitoring entities such as temperature and wind speed. A centralized database tracks these entities to enable query processing. Due to contin...
159
click to vote
SIGMOD
2003
ACM
16 years 4 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...
132
click to vote
VLDB
2007
ACM
15 years 10 months ago
2007
ACM
A top-k query retrieves the k highest scoring tuples from a data set with respect to a scoring function defined on the attributes of a tuple. The efficient evaluation of top-k q...
142
click to vote
VLDB
2005
ACM
15 years 10 months ago
2005
ACM
The Web has been rapidly “deepened” by myriad searchable databases online, where data are hidden behind query forms. Helping users query alternative “deep Web” sources in ...