1263 search results - page 41 / 253 » A Scalable Algorithm for Answering Queries Using Views |
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
TMC
2008
13 years 8 months ago
2008
Location-based spatial queries (LBSQs) refer to spatial queries whose answers rely on the location of the inquirer. Efficient processing of LBSQs is of critical importance with the...
ICSE
2008
IEEE-ACM
14 years 9 months ago
2008
IEEE-ACM
Programmers seek to answer questions as they investigate the functioning of a software system, such as "which execution path is being taken in this case?" Programmers at...
IJCAI
2003
13 years 10 months ago
2003
Information integration systems provide a uniform query interface to a set of sources. One of the key challenges for an information integration system is to provide maximally comp...
ICDE
2010
IEEE
13 years 6 months ago
2010
IEEE
In this paper, we propose the Hybrid-Layer Index (simply, the HL-index) that is designed to answer top-k queries efficiently when the queries are expressed on any arbitrary subset ...