316 search results - page 19 / 64 » Evaluation of Conditional Preference Queries |
ICDE
2008
IEEE
14 years 11 months ago
2008
IEEE
Authority flow is an effective ranking mechanism for answering queries on a broad class of data. Systems have been developed to apply this principle on the Web (PageRank and topic ...
PODS
2006
ACM
14 years 10 months ago
2006
ACM
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
ICDE
2005
IEEE
14 years 11 months ago
2005
IEEE
Sensor networks and other distributed information systems (such as the Web) must frequently access data that has a high per-attribute acquisition cost, in terms of energy, latency...
DASFAA
2007
IEEE
13 years 11 months ago
2007
IEEE
As data of an unprecedented scale are becoming accessible, skyline queries have been actively studied lately, to retrieve “interesting” data objects that are not dominated by a...
SSDBM
2009
IEEE
14 years 4 months ago
2009
IEEE
Scientific experiments produce large volumes of data represented as complex objects that describe independent events such as particle collisions. Scientific analyses can be express...