503 search results - page 11 / 101 » Applying Multiple Query Optimization in Mobile Databases |
195
Voted
GIS
2005
ACM
16 years 21 days ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
85
Voted
CIKM
2009
Springer
15 years 6 months ago
2009
Springer
We introduce a new theoretical derivation, evaluation methods, and extensive empirical analysis for an automatic query expansion framework in which model estimation is cast as a r...
SIGMOD
2003
ACM
15 years 11 months ago
2003
ACM
Decision-support applications generate queries with complex predicates. We show how the factorization of complex query expressions exposes significant opportunities for exploiting...
VLDB
1999
ACM
15 years 3 months ago
1999
ACM
The problem of nding the best answers to a query quickly, rather than nding all answers, is of increasing importance as relational databases are applied in multimedia and decision...
ICPP
2003
IEEE
15 years 5 months ago
2003
IEEE
Spatial databases are entering an era of mass deployment in various real-life applications, especially mobile and location-based services. The real-time processing of spatial quer...