1965 search results - page 108 / 393 » Information shared by many objects |
SSDBM
2002
IEEE
15 years 2 months ago
2002
IEEE
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...
APAQS
2000
IEEE
15 years 2 months ago
2000
IEEE
Recently, the extraordinarygrowth in the World Wide Web has been sweeping through business and industry. Many companies have developed or integrated their mission-critical applica...
SIGMOD
2010
ACM
14 years 10 months ago
2010
ACM
Histograms have been widely used for fast estimation of query result sizes in query optimization. In this paper, we propose a new histogram method, called the Skew-Tolerant Histog...
CGI
2003
IEEE
15 years 1 months ago
2003
IEEE
Location-aware mobile users need to access, query, and visualize, geographic information in a wide variety of applications including tourism, navigation, environmental management,...
CORR
2004
Springer
14 years 9 months ago
2004
Springer
Logic languages based on the theory of rational, possibly infinite, trees have much appeal in that rational trees allow for faster unification (due to the safe omission of the occ...