708 search results - page 92 / 142 » A Genetic Algorithm for Database Query Optimization |
AAAI
1998
13 years 10 months ago
1998
Probabilistic models have recently been utilized for the optimization of large combinatorial search problems. However, complex probabilistic models that attempt to capture interpa...
SIGMOD
2009
ACM
14 years 9 months ago
2009
ACM
Reachability queries on large directed graphs have attracted much attention recently. The existing work either uses spanning structures, such as chains or trees, to compress the c...
SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
GVD
2003
13 years 10 months ago
2003
Several mapping schemes have recently been proposed to store XML data in relational tables. Relational database systems are readily available and can handle vast amounts of data v...
SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
Structured peer-to-peer (P2P) overlays have been successfully employed in many applications to locate content. However, they have been less effective in handling massive amounts o...