736 search results - page 78 / 148 » Answering Imprecise Queries over Web Databases |
SIGMOD
2007
ACM
14 years 9 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...
WWW
2003
ACM
14 years 9 months ago
2003
ACM
The integration of data produced and collected across autonomous, heterogeneous web services is an increasingly important and challenging problem. Due to the lack of global identi...
SIGMOD
2002
ACM
14 years 9 months ago
2002
ACM
Relational query optimizers have traditionally relied upon table cardinalities when estimating the cost of the query plans they consider. While this approach has been and continue...
ICDE
2010
IEEE
14 years 8 months ago
2010
IEEE
Abstract-- This paper introduces a deterministic approximation algorithm with error guarantees for computing the probability of propositional formulas over discrete random variable...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
A common approach to performing keyword search over relational databases is to find the minimum Steiner trees in database graphs. These methods, however, are rather expensive as th...