132 search results - page 1 / 27 » Preference query evaluation over expensive attributes |
CIKM
2010
Springer
13 years 3 months ago
2010
Springer
Most database systems allow query processing over attributes that are derived at query runtime (e.g., user-defined functions and remote data calls to web services), making them e...
ICDE
2005
IEEE
14 years 6 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...
SIGMOD
2001
ACM
14 years 5 months ago
2001
ACM
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
SIGMOD
2002
ACM
14 years 5 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
PVLDB
2008
13 years 4 months ago
2008
Current skyline evaluation techniques assume a fixed ordering on the attributes. However, dynamic preferences on nominal attributes are more realistic in known applications. In or...