792 search results - page 48 / 159 » Computing Iceberg Queries Efficiently |
SSDBM
2010
IEEE
14 years 7 months ago
2010
IEEE
Graphs are prevailingly used in many applications to model complex data structures. In this paper, we study the problem of supergraph containment search. To avoid the NP-complete s...
EDBT
2009
ACM
15 years 1 months ago
2009
ACM
A skyline query returns a set of objects that are not dominated by other objects. An object is said to dominate another if it is closer to the query than the latter on all factors...
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SIGMOD
2005
ACM
15 years 10 months ago
2005
ACM
In this paper, we study the evaluation of skyline queries with partially-ordered attributes. Because such attributes lack a total ordering, traditional index-based evaluation algo...
DASFAA
2004
IEEE
15 years 1 months ago
2004
IEEE
Data and computations of a CAD system have been wrapped by a mediator system using CORBA's IIOP Protocol. This allows ad hoc declarative mediator queries to be translated into...
CVPR
2007
IEEE
15 years 12 months ago
2007
IEEE
In this paper we present two contributions to improve accuracy and speed of an image search system based on bag-of-features: a contextual dissimilarity measure (CDM) and an effici...