202 search results - page 31 / 41 » Admissible Heuristics for Optimal Planning |
PODS
2002
ACM
14 years 7 months ago
2002
ACM
We consider the fundamental operation of applying a conjunction of selection conditions to a set of records. With large main memories available cheaply, systems may choose to keep...
VLDB
1990
ACM
13 years 11 months ago
1990
ACM
Even though the large body of knowledge of relational query optimization techniques can be utilized as a starting point for object-oriented query optimization the full exploitatio...
VTC
2010
IEEE
13 years 5 months ago
2010
IEEE
—Hierarchical cellular networks (HCNs), in which femtocells are deployed in the coverage of a conventional macrocell, offer a cost effective solution to achieve high user capacit...
SIGMOD
1996
ACM
13 years 11 months ago
1996
ACM
We investigate the problem of incremental maintenance of an SQL view in the face of database updates, and show that it is possible to reduce the total time cost of view maintenanc...
GLOBECOM
2010
IEEE
13 years 5 months ago
2010
IEEE
Orthogonal Frequency Division Multiplexing (OFDM) has been recently proposed as a modulation technique for optical networks, due to its good spectral efficiency and impairment tole...