43 search results - page 9 / 9 » Inverse Roles Make Conjunctive Queries Hard |
PODS
2004
ACM
14 years 7 months ago
2004
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...
CIKM
2008
Springer
13 years 9 months ago
2008
Springer
Most prior work on information extraction has focused on extracting information from text in digital documents. However, often, the most important information being reported in an...
EDBT
2012
ACM
11 years 9 months ago
2012
ACM
Increased availability of large repositories of chemical compounds has created new challenges and opportunities for the application of data-mining and indexing techniques to probl...