6746 search results - page 912 / 1350 » Multimodal Database Query |
218
click to vote
GIS
2009
ACM
16 years 1 months ago
2009
ACM
In this paper, we formalize the novel concept of Constrained Reverse k-Nearest Neighbor (CRkNN) search on mobile objects (clients) performed at a central server. The CRkNN query c...
170
click to vote
VLDB
2005
ACM
16 years 10 days ago
2005
ACM
Cost-based query optimizers need to estimate the selectivity of conjunctive predicates when comparing alternative query execution plans. To this end, advanced optimizers use multi...
239
click to vote
ICDE
2002
IEEE
15 years 11 months ago
2002
IEEE
Soon, much of the data exchanged over the Internet will be encoded in XML, allowing for sophisticated filtering and content-based routing. We have built a filtering engine called ...
232
click to vote
CIKM
2004
Springer
15 years 10 months ago
2004
Springer
With the growing importance of semi-structure data in information exchange, much research has been done to provide an effective mechanism to match a twig query in an XML database....
189
click to vote
DELOS
2000
15 years 8 months ago
2000
User feedback has proven very successful to query large multimedia databases. Due to the nature of the data representation and the mismatch between mathematical models and human p...