94 search results - page 8 / 19 » Data Base Mappings and Theory of Sketches |
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
Research has investigated mappings among data sources under two perspectives. On one side, there are studies of practical tools for schema mapping generation; these focus on algor...
OWLED
2008
13 years 9 months ago
2008
Abstract. Web portal software is relatively easy to set up and populate from the perspective of the end-user, but it leaves the back-end database devoid of subject domain semantics...
PODS
2006
ACM
14 years 7 months ago
2006
ACM
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
VISUAL
2005
Springer
14 years 29 days ago
2005
Springer
This contribution details how conceptual characterizations of route knowledge can provide the basis for graphical route information in a cognitively adequate way. The approach is b...
ICEIS
2005
IEEE
14 years 1 months ago
2005
IEEE
Abstract: Interoperability for information systems remains a challenge both at the semantic and organisational levels. The original three-level architecture for local databases nee...