322 search results - page 27 / 65 » Least Expected Cost Query Optimization: What Can We Expect |
MASCOTS
2007
13 years 10 months ago
2007
— The transmission energy required for a wireless communication increases superlinearly with the communication distance. In a mobile wireless network, nodal movement can be explo...
FQAS
2006
Springer
14 years 8 days ago
2006
Springer
Consistent query answering is the term commonly used for the problem of answering queries on databases that violate certain integrity constraints. We address this problem for univ...
DMSN
2007
ACM
14 years 17 days ago
2007
ACM
In this paper, we consider a large scale sensor network comprising multiple, say K, base stations and a large number of wireless sensors. Such an infrastructure is expected to be ...
VLDB
1999
ACM
14 years 26 days ago
1999
ACM
Data intensive applications today usually run in either a clientserver or a middleware environment. In either case, they must efficiently handle both database queries, which proc...
STOC
2004
ACM
14 years 9 months ago
2004
ACM
We prove the following inequality: for every positive integer n and every collection X1, . . . , Xn of nonnegative independent random variables that each has expectation 1, the pr...